Mendel gathered his data for tens of thousands of plants before coming to the conclusion that the traits might be divided into expressed and latent features. These traits were described by him as being dominant and recessive, respectively. In a hybridization, dominant features are those that are passed on unaltered.
The three laws of dominance, independent assortment, and segregation serve as a summary of all the findings of Mendel's experiment. He proposed that each gene be passed down to the organisms twice, once from each parent. In their gametes, organisms only share one copy of each gene. In his opinion, traits are discretely inherited from each parent, one at a time.
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What makes mollusks unique?
The presence of file-like rasping tool called a radula makes mollusks unique. This structure helps them to dig algae and other food from rocks or they can even shell of prey.
In general , Mollusks are classified to have soft bodies, and the body is not segmented . Soft body helps to holds the heart, liver, digestive system, and other important organs. Mollusks don't have legs, they have rough tongues with teeth like structure known as radula .
Hence, important distinguishing feature in mollusks is having a hard outer shell. That covers the top of the body and helps to enclose many internal organs. They have distinctive head region, this region have tentacles for sensing and also grasping food.
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What were the two key concepts that Mendel's careful selection of specific traits allowed him to develop?
Mendel's research reveals two basic truths : Physical characteristics are determined by factors (now called genes) inherited from parents, and these factors are passed on in predictable patterns from generation to generation.
Understanding heredity was made possible by a scientist named Gregor Mendel who formulated certain laws for understanding heredity known as Mendel's Laws of Inheritance. Mendel proposed three laws of inheritance are: Law of Dominance, The Law of Segregation, Law of independent assortment. Both Mendelian segregation and independent permutation are explained by the physical behavior of chromosomes during meiosis. Mendel conducted experiments on peas and examined seven main contrasting characteristics of the plant. He then conducted both experiments to determine the laws of heredity.
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What color of the visible light is reflected when the plant leaves appear as green in color Brainly?
The color of the visible light that is reflected when the plant leaves appear as green in color is green. The chlorophyll pigments in the leaves of plants absorb the red and blue parts of the visible light spectrum.
The green part is reflected, making the leaves appear green to our eyes. Chlorophyll is a type of pigment that is found in the chloroplasts of plants. Chlorophyll absorbs red and blue light while reflecting green light. It gives the leaves of a plant their green color. The chlorophyll pigments are responsible for the green color of leaves, which are the primary site of photosynthesis in plants. They Chlorophyll absorb light in the blue and red regions of the spectrum, but reflect light in the green region. That is why leaves appear green to the human eye.
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Which two of the following organisms are tertiary consumers in this food web?
Answer:
Snowy owl and Rough-legged hawk
Explanation:
Hard to tell but I believe I'm correct
What physical process is important for breathing?
Corn seeds with identical genetic information were planted on two adjacent farms. The corn plants on one farm were well fertilized and grew large, while the plants on the other farm were not given fertilizer and did not grow as large. The best explanation for these observations is that
The best explanation for these discernments is that environmental conditions impact quality verbalization.
The vitally immediate reason for biodiversity misfortune is land use change (fundamentally for enormous scope food creation) which drives an expected 30% of biodiversity decline all around the world. Second is overexploitation (overfishing, overhunting, and overharvesting) for things like food, prescriptions, and lumber which cruises all over 20%.
The zygote contains all the data fundamental for the development, improvement, and inevitable multiplication of the organic entity. Human sexual multiplication happens in fundamentally the same as way to other physically replicating creatures.
Corn portions are the products of corn (called maize in numerous nations). Maize is a grain, and the portions are utilized in cooking as a vegetable or a wellspring of starch. The portion involves endosperm, microorganisms, pericarp, and tip cap.
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4. What is the trait that will be expressed if it is present?
purebred
recessive
dominant
hybrid
Answer:
c
Explanation:
all dominant traits show hybrid and purebred are definetly not it
Rex rabbits have short fur and Angora rabbits have long fur. When mated together these rabbits produce offspring with medium length fur.
On a sheet of paper, make a Punnett square showing a cross that could result in the birth of short fur, long fur and medium fur babies.
What would be the parent genotypes that could result in short fur, long fur, and medium fur babies?
The offspring of an Angora and Rex rabbit hybrid have fur that is significantly longer than that of a Rex rabbit. There is a 0.25 percent probability that the child will have long fur based on the genotype of the parents.
The length of the offspring's' fur indicates an imperfect dominant inheritance pattern. Incomplete dominance is an inheritance pattern in which the phenotype of the offspring closely matches that of one parent more than the other, but is intermediate between the phenotypes of the parents.
In this instance, the progeny have fur length that is roughly equivalent to that of an Angora rabbit but slightly longer than that of a Rex rabbit. This is an illustration of partial dominance.
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Which anatomical feature would you expect to find in the fossil remains of a nocturnal species?
a. short fingers and toes
b. pointy teeth
c. long legs
d. large eye orbits
The anatomical feature would you expect to find in the fossil remains of a nocturnal species is large eye orbits.
What anatomical characteristics might you anticipate to see in the fossilized remains of a nocturnal species?Comparatively larger eyes and bony orbits are characteristics of nocturnal (active at night) species as opposed to diurnal species. The bony orbits of primate skulls exhibit significant structural variations in addition to size variations.
Nocturnals are animals that are active at night. These animals possess a unique trait called night vision that enables them to see in the dark! Animals use their night vision to locate food or elude predators. A few nocturnal animals also have keen hearing or smell senses.
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Which two molecules bond together to form a disaccharide?
Answer:
Monosaccharides
Explanation:
Joining two Monosaccharides will create a Disaccharide. For example, the monosaccharides, glucose, and fructose bond together to form the disaccharide sucrose, which is produced by plants and is used in white sugar.
What happens when CO2 increases in the ocean?
More carbon dioxide is evaporating into the ocean as a result of human-driven increases in atmospheric carbon dioxide concentrations. Currently, the ocean has an average pH of 8.1, which is basic (or alkaline), but when more CO2 is absorbed, the pH drops and the ocean becoming more acidic.
Ocean acidificationCarbon dioxide dissolves in seawater as it reaches the ocean. It first creates carbonic acid. The carbonic acid then "dissociates," or separates, into bicarbonate ions and hydrogen ions. Ocean acidification is caused by an increase in hydrogen ion concentration and a decrease in carbonate ions as a result of increasing CO2 absorption.
Carbonate ions are necessary for the growth of the shells and thriving of clams, mussels, crabs, corals, and other marine life.
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What are the 5 characteristics of natural selection?
In fact 5 characteristics for any natural selection, is that it is so straightforward that it can be divided into five fundamental processes, which we'll refer to as VISTA in this instance: Variation, Inheritance, Selection, Time, and Adaptation.
Natural selection is a straightforward method that results in long-term population changes in living things. Three factors inevitably lead to natural selection: most qualities are inherited, more offspring are generated than can survive, and kids with more advantageous traits will endure and create more offspring than those with less advantageous traits.
Environment-adapted organisms have a higher chance of surviving and dispersing the genes that contributed to their success. Over time, this mechanism leads to the evolution and divergence of species. Natural selection is a method of accounting.
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Graph 5- Survivorship Curves Using your textbook or an online resource, determine the differences between K-selected species and r-selected species. Next, use the graph below to answer question 24.
The difference between K-selected species and R-Selected species is that the former posses a type I survivorship curve while the latter has type III survivorship curve.
A Type III survival curve is more likely to be present in K-selected species. Type I survivorship curves are typical in r-selected species. Graphs called survival curves provide a visual representation of the proportion of a population that is still alive at various ages. R-Selected species have evolved to survive in unstable and unpredictable surroundings. They produce a great number of tiny young.
The offspring of r-selected animals are comparatively self-sufficient at birth and do not get a lot of resources or parental care. Examples of r-selected species include plants like the dandelion and marine creatures like jellyfish.
Species chosen by K are adapted to predictable, steady surroundings. K-selected species tend to have populations that are roughly at their carrying capacity. These species have long generation times, and larger but fewer offspring overall. An example of a K-selected species would be an elephant or a human.
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Which of the following is NOT a way in which viruses differ from all other living things?
a. they do not grow
b. they cannot respond to environment stimuli through metabolic changes
c. they cannot self-replicate
d. they live inside host cells
Answer:
d. they live inside host cells
In contrast to transporters, ion channels in cellular membranes .... Group of answer choices interact strongly with the molecules they transport undergo a conformation change with every solute they transport can only mediate passive transport form pores that are always open are always controlled by voltage
In contrast to transporters, ion channels in cellular membranes can only mediate passive transport form pores.
Only in order to open a membrane pore that enables a certain ion into the membrane do channel proteins undergo a conformation in the membrane. In contrast to carrier proteins, the ion will only move along its concentration gradient. It has been discovered that all membrane transport proteins that have been in-depth study are multipass transmembrane proteins, meaning that their transporters chains repeatedly pass through the lipid bilayer. These proteins allow certain hydrophilic solutes to traverse the membrane without coming into touch with the hydrophobic interior of the lipid bilayer by establishing a continuous protein pathway across the membrane.
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You are competing in a 50-day survival challenge and can choose only one type of food to bring. What food do you choose and why: lard (Fat/Grease), Meat, or bread?
Could both the food competition hypothesis and the sexual competition hypothesis explain why giraffes have long necks
Yes, both the food competition hypothesis and the sexual competition hypothesis explain why giraffes have long necks because long necks could be beneficial for more than reason.
The giraffe's neck, which can extend up to two meters in length, was chosen since no other animal can access the topmost leaves of the trees because of its unique ability to do so. Therefore, this adaption was created to prevent the animal from competing with other animals for food. According to Simmons and Sheepers' sexual selection theory, giraffes' tall necks are the result of competition for mates. It explains that long necks are caused via intersexual competitions in which the neck is used as a weapon.
According to the Darwinian theory of evolution, some giraffes developed longer necks than others due to random variation. They were able to reach leaves far up in the trees in their surroundings because of their lengthy necks.
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What statement best describes why the process of meiosis is important to Mendel's law of independent assortment of traits on different chromosomes?
The correct answer (B) In a "fair meiosis", there is an equal probability of each allele going to the gametes.
Independent Assortment Experiment by MendelIn plants that were true-breeding for two characteristics, Mendel conducted dihybrid crosses. For instance, a plant with round seeds and the color of yellow seeds crossed pollinated with a plant with wrinkled seeds and the color of green seeds.
Round seed shape (RR) and yellow seed color (YY) characteristics are prevalent in this hybrid. Recessive traits include wrinkled seed shape (rr) and green seed color (yy).
The kids that resulted (or F1 generation) were all heterozygous for yellow seeds and spherical seed morphology (RrYy). This indicates that in the F1 generation, the dominant features of spherical seed shape and yellow color totally concealed the recessive traits.
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Full Question: What statement best describes why the process of meiosis is important to Mendel's law of independent assortment of traits on different chromosomes?
Meiosis provides a way for alleles to maintain the associations they had in the parental generation.
In a "fair meiosis", there is an equal probability of each allele going to the gametes.
In meiosis, the segregation of one pair of homologous chromosomes affects the segregation patterns of other pairs.
Homologous pairs of chromosomes line up at the metaphase plate in meiosis.
In meiosis, how each pair of homologous chromosomes segregates is unaffected by what other pairs do.
The first step to breakdown GLUCOSE to extract energy for almost all organism
The Electron Transport Chain
The Krebs Cycle
Fermentaion
Glycolysis
Answer:
Glycolysis
Explanation:
Glycolysis is the process of breaking down glucose molecules into pyruvates and splitting off a small amount of energy in the form of ATP. It is the first stage of cellular respiration and is a common process used by most organisms.
As climate changes, which type of reproduction would most likely result in a greater chance of survival for a species? (1) sexual reproduction, with a short reproductive сycle (2) sexual reproduction, with a long reproductive cycle (3) asexual reproduction, with a short reproductive сycle (4) asexual reproduction, with a long reproductive сycle
Sexual reproduction with a short reproductive cycle would probably increase a species' chances of survival as the climate changes. Therefore, option (1) is correct.
The fusing of a haploid female gamete (egg cell) with a haploid male gamete (sperm cell) is known as sexual reproduction. Reproduction requires either one parent (asexual reproduction) or two parents (sexual reproduction).
Asexual reproduction is typically undesirable because the environment is always changing. Sexual reproduction is generally preferred. Asexual reproduction results in organisms that are exact copies of their parents. The process of sexual reproduction can result in the development of new genetic combinations. The variety of phenotypic qualities is also increased by the genetic diversity of organisms.
During meiosis, independent assortment and crossing-over take place, which causes variation. This variation provides organisms the ability to adapt to a changing environment so that they will live and reproduce in the new habitat. In doing so, sexual reproduction would be able to adjust to new environmental challenges. And a shorter reproductive cycle allows it to produce more offspring.
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Light from a distant star is focused by the lens onto the retina . With a pupil diameter of 3.0mm, the intensity of light falling on the retina is illustrated by the graph below . The spot illuminated on the retina is about 8micrometers in diameter. When star gazing on a very dark evening, the pupil diameter will expand to much larger than 3.0 mm.
a.With an expanded pupil diameter, what will happen to the total amount of light energy reaching the retina?
increase,decrease,or stay the same?
b. With an expanded pupil diameter, what will happen to the spread of the image on the retina?
increase,decrease,or stay the same?
c. With a decreased spread in image size, what will happen to the intensity of the central maxima?
increase,decrease,or stay the same?
With an expanded pupil diameter, the total amount of light energy reaching the retina will increase, the spread of the image on the retina will decrease, and the intensity of the central maxima will increase.
a. The total amount of light energy reaching the retina will rise with enlarged pupil diameter. The iris of the eye has an aperture called a pupil that controls how much light enters the eye.
More light can enter the eye when the pupil dilates, increasing the quantity of light energy that reaches the retina overall.
b. The spread of the image on the retina will narrow as the pupil diameter increases. The retinal image is spread out over a larger surface area as the pupil dilates, which reduces the size of the image.
c. The central maxima's intensity will rise as the spread of the image size decreases. The center maxima's intensity rises as a result of the light's greater concentration in a smaller region due to the lower image size.
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Which of the following is the best example of a mechanistic understanding of a function?
a. We are self-aware so that we can recognize ourselves and distinguish ourselves from others.
b. The kidneys produce urine so that waste products, such as uric acid, do not build up in the blood.
c. Skeletal muscle cells contract when myosin heads attach to actin filaments and rotate, producing force.
d. Bones are strong so that they can support our body weight and protect delicate organs.
Myosin heads bind to actin and myosin and spin to produce force in the contraction of skeletal muscle cells. an illustration of how a function is understood mechanistically.
And what were the four skeleton types?The body's framework is the skeleton. It helps give us form and serves as the base for other structures to attach to. The 206 bones that make up the skeleton may be divided into four groups: flat, long, short, and irregular.
What makes bone health important?Bones are used by the body for a variety of functions, including as anchoring muscles, protecting organs, and creating structure. While it's important for children and adolescents to have strong, stable bones, there are things adults can do to preserve bone health.
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"BB" - this is described as what configuration?
BB is a dominant purebred condition in which only one character or trait is expressed, such as if it is for black, then only black will be expressed as there are two alleles present and both are similar.
What is the significance of the purebred traits?The term "purebred trait" refers to the presence of two dominant or two recessive alleles in genotypes such as BB and TT, and the parents with purebred traits inherit the gametes with a single type gene and no chance of variation is here.
Hence, BB is a dominant purebred condition in which only one character or trait is expressed, such as if it is for black, then only black will be expressed as there are two alleles present and both are similar.
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Why is it important to distinguish true north from Geomagnetic north
True north is a fixed point on the globe. Magnetic north is quite different. Magnetic north is the direction that a compass needle points to as it aligns with the Earth's magnetic field. What is interesting is that the magnetic North Pole shifts and changes over time in response to changes in the Earth's magnetic core.
Why is the root of a plant unable to absorb mineral salt from the soil if it’s given a poison that prevents respiration
Please Hurry
2. Is Gause’s Principle accurate? Explain why or why not.
Yes, the Gause’s Principle is accurate and applicable in real life.
What is Gause's principle?This law is also known as Gause's law. One resident will drive off the other one. If any of the life forms of the exhaust population remains, that would be because they have modified themselves according to the dissimilar niches.
Gause's laboratory experiment showed the process of competitive exclusion because he was able to separate the two species /living organisms and their common limiting resource such as food that is present in the laboratory.
Gause's principle of ruthless exclusion states that two species competing for the same restricted resource cannot coexist in the same niche forever. In ecology, the competitive exclusion principle, sometimes mention as Gause's law is a proposition.
So we conclude that The competitive barring principle, which is also known as Gause's law of competitive exclusion.
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Meiosis creates 4 daughter cells. How does the genetic information in these daughter cells compare to one another?
The genetic information of the four daughter cells created by meiosis are distinct or different from one another.
What is meiosis?Meiosis is a cell division of a diploid cell into four haploid cells, which develop to produce gametes.
Meiosis is a type of cell division in sexually reproducing organisms that reduces the number of chromosomes in gametes (the sex cells, or egg and sperm).
Meiosis produces four cells containing half the original amount of genetic information. These cells are our sex cells – sperm in males, eggs in females.
The four daughter cells are genetically distinct from one another because of a process called crossing over that occurs in the Prophase I of the division process.
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a cross between ss and Ss will generate _____ % normal hemoglobin, _____% sickle cell trait, and _____% sickle cell anemia.
A cross between ss and Ss will generate 0 % normal hemoglobin, 50 % sickle cell trait, and 50 % sickle cell anemia.
People with sickle cell trait deliver handiest one replica of the altered hemoglobin gene and seldom have any medical signs and symptoms associated with the sickness. In contrast, humans with sickle cell sickness deliver copies of the altered hemoglobin gene. Hemoglobin S trait, additionally cell as sickle cell trait, approach that your infant has inherited one gene for the same old hemoglobin (A) from one discern and one gene for hemoglobin S from the alternative discern. motive any fitness problems. Your infant will now no longer want any remedy or remedy for S trait.
A cross between ss and Ss will generate 0 % normal hemoglobin, 50 % sickle cell trait, and 50 % sickle cell anemia.
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WILL GIVE BRAINLIST
Instructions: As you complete each slide of the Natural Selection Virtual Lab Activity, please fill in this lab report with the appropriate information and data.
Title:
Include your name, instructor’s name, and the name of the lab
Objective(s):
What is the purpose of the lab
Hypotheses:
Include the if/then statement you developed during the virtual lab.
Variables:
Materials:
The Natural Selection Virtual Lab Activity
Natural Selection Virtual Lab Report
Procedures:
The procedures are listed in Natural Selection Virtual Lab Activity. You do not need to include them here.
Data and Observations:
Table 1: Rabbits in the light-colored environment
Generation
Rate of Survival for White Rabbits
Rate of Survival for Brown Rabbits
1
2
3
4
5
Table 2: Rabbits in the dark-colored environment
Generation
Rate of Survival for White Rabbits
Rate of Survival for Brown Rabbits
1
2
3
4
5
Data Analysis:
Part 1: In your data tables, you recorded the percentage of the rate of survival for both the white and brown rabbit in both the light-colored and the dark-colored environments.
Part 2: Using your percentages in part 1, create a graph that represents the rate of survival for the white and brown rabbits in each type of environment.
Insert chart [Hint: don’t forget to consider the relationship between your data and the type of graph to best represent your data. A bar graph would be the best option to analyze this data.]
Conclusion:
Include the following as a summary paragraph in the conclusion of your lab report:
Analysis of the results of the experiment
Using Table 1, which color rabbit had the higher rate of survival in the light-colored (white) environment? Explain why this occurred.
Using Table 2, which color rabbit had the higher rate of survival in the dark-colored (brown) environment? Explain why this occurred.
What color rabbit seemed to camouflage the best in this snow habitat, and why?
Rationale for the support or rejection of the hypothesis
Questions:
Using what you have learned from the lesson and the virtual lab activity, answer the following questions in complete sentences.
How did the colors of each type of prey affect its population size over time?
How do you predict the data would change if you continued? Explain your answer.
What traits could help a predator be more "fit" to survive in each environment? Be specific.
Describe other adaptations besides color that could affect an individual's survival.
Explain what will happen if there are not enough resources to support the individuals in a species.
This experiment tested natural selection. What could be another possible mechanism of evolution for the rabbits to evolve? Be specific.
Due to their ability to blend in with their surroundings, White Rabbits are more likely to survive than Brown Rabbits.
What is natural selection?The process through which populations of living things adapt and change is known as natural selection. A population's members are naturally varied, which means that they are all distinctive in some ways.
Resources are necessary for a species' growth and survival, therefore if there aren't enough of them to support each member of the species, they can't reproduce.
The adaptations that could affect a person's likelihood of survival are sharp teeth, rough skin, or claws to fight off predators. These adaptations stop them from killing.
As a result, we can draw the conclusion that white rabbits are more likely to survive than brown ones do because they can blend in better with the environment's light colours.
Thus, this can be the summary of the given scenario.
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please help ..... its for midterm practice
Answer:
10) The top image is Hydrolysis, because water is used to break the molecule into two. The bottom one is condensation because water is created from the formation on two molecules becoming one
11) Hydrophobic means that the molecule repels water. This is usually from nonpolar materials because water is polar and naturally moves away from things that aren't polar like itself.