Answer:
Explanation:
If a housefly cell had 12 chromosomes, then it would be a gamete or a somatic cell (circle one). If a human cell had 23 chromosomes, then it would be a gamete or a somatic cell
Consider this plant cell. Which organelle is labeled A?
Answer:
image so we can answer the question?
Explanation:
Would collecting the resources that go into bread have long-term or short-term effects on the environment? Explain your answer.
Answer:
a short term effect. In their life cycle analysis, the researchers found that a loaf of bread emits about a half-kilo of carbon dioxide. Forty-three percent of bread's greenhouse gas emissions can be attributed to the fertilizers used to grow wheat
It is a short term effect. In their life cycle analysis, it has been observed that a loaf of bread emits about a half-kilo of carbon dioxide.
What's the Environmental Impact of a Loaf of Bread?The life cycle of a loaf o bread is started from growing, harvesting, and transporting to producing flour, shipping to a bakery, baking loaves and packaging them.
In the life cycle it has been found that per loaf of bread about a half-kilo of carbon dioxide is emitted where nearly 43% of bread’s greenhouse gas emissions can be used in the fertilizers for wheat cultivation.
Two-thirds of the emissions come from actual fertilizer production.
we are unaware of the environmental impacts of this products mainly concerned with human health or animal welfare.
It was found that each loaf production is associated with global warming as a result more amount of fertilizer applied in order to increase their wheat harvest.
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Which of the following biological processes releases oxygen into the
atmosphere?
A. Transpiration
B. Paristalsis
C. Respiration
D. Photosynthesis
Answer:
D. Photosynthesis.......
What is a prokaryote?
Question 3 options:
organism that does have a nucleus
organism that does not have a nucleus
organism that is multicellular
Answer:
a microscopic single-celled organism that has neither a distinct nucleus with a membrane nor other specialized organelles. Prokaryotes include the bacteria and cyanobacteria.
Explanation:
What are the two types of evolution? What are the differences between the two?
Answer:
Divergent evolution/ the evolutionary pattern in which two species gradually become increasingly different.
Parallel evolution/ two or more lineages have changed in similar ways so that the evolved descendants are as similar to each other as their ancestors were.
GOODLUCK. HOPE YOU GET THIS
Which statement from the passage is the best evidence of Phillips and Lederer's relationship as of 2002?
A.
" 'Dear Abby' and 'Ann Landers' were both known by their millions of daily readers for their quick wit and sage wisdom."
B.
" 'Dear Abby' has been in publication for more than 50 years and still read daily by more than 110 million people."
C.
"Although they publicly reconciled in 1964, it is said the bitter rivalry continued behind closed doors for decades."
D.
"Lederer's daughter, Margo Howard, said the women had not been in contact for years, and she believes Phillips just wrote the tribute for money."
I NEED YOUR HELP 35 POINTS PLEASE DO NOT TELL ME THE WRONG ANSWER ITS MY LAST QUESTION
Answer:
D
Explanation:
Step by Step explanation
The width of the labelled cell in Figure 4 is 6 mm. The cell has been magnified 750 times.
Calculate the actual width of this cell in mm.
Give your answer in standard form.
Answer:4,500
Explanation:6mm times 750 equals 4,500
which group of organisms in level 4 of the energy pyramid
Bacteria that generate reactions such as swelling of tissues, and fever in humans are an example of microorganisms that -
A.form mutualistic relationships with cells of other organisms.
B.break down the organic matter of dead plants and animals.
C.are pathogenic and are able to cause disease by killing host cells.
D.live in close association and provide resources for all plants and animals.
Answer:
B. Break down the organic matter of dead plants and animal
The process of evolution, or genetic change over time, has resulted in the wide variety of living things that exist today. What part do mutations play in the evolution of species
Answer:
Evolution has occurred thanks to many random changes in the DNA base sequence that we call mutations. This is caused by errors in the genetic information contained in the cells - due to chemical or physical factors - and also its subsequent propagation by replication, being transcendent for evolution those that will later be transmitted to the offspring: somatic cells if reproduction it is asexual and the gametes if it is sexual. For this reason, we say that mutations are the primary source of gene variability, essential for evolution to exist. Thus, without mutations, the genetic variability that natural selection needs would not be present - in addition, such diversity is important for the population to more successfully mold (or adapt) to continuous environmental changes.
Explanation:
A mutation is a change in the information contained in the DNA of cells. The DNA of an organism influences all aspects of its life. Therefore, a change in the DNA of an organism can produce changes in all aspects of its life. The mutation increases the genetic variability of the species and contributes to the adaptation of the species to the environment and to their evolution. Viability and fertility are associated with adaptation, the total capacity of an organism to survive and reproduce. The effect of a mutation in any generation is minimal, but over time a considerable amount of variation from mutations can accumulate. Most mutations are harmful and their carriers die, but those that produce an improvement remain in the species and are essential in the evolutionary process. When mutations appear in a certain population, the genotype changes from generation to generation, appearing individuals with characteristics different from those of their predecessors. This is how the population evolves, being able to originate new species. Mutations that are detrimental to the carrier individual will be eliminated by natural selection.
The food web illustrated here exists in Yellowstone National Park,
Secondary
consumers
Raven (detritivore)
Gray wolf
Red fox
Primary
consumers
Snowshoe
hare
Moose
Beaver
Red squirrel
Primary
producers
端
Pine
Maple
Balsam Fir Cottonwood Aquatic plants
If gray wolves were to go extinct, what would be the two most likely effects
on the ecosystem?
When the gray wolves go extinct, the biodiversity in the ecosystem is decreased and the red fox population is also decreased.
What is the food web?The food web shows all the possible feeding relationships in the ecosystem. The long web shows interrelationships between living things. We can see that the chain where the gray wolves also includes the beover and the red fox.
Hence, when the gray wolves go extinct, the biodiversity in the ecosystem is decreased and the red fox population is also decreased.
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Giving Brainliets if correct! This is important T^T
Theo made a list of items he saw.
Orchid, water, air, fan, grass, fish
Which statement is correct about the items in the list?
A.Fish, water, and air are created from nonliving matter.
B.The basic functional unit of water, air, and fan is the cell.
C.Orchid, grass, and fish are created from nonliving matter.
D.The basic functional unit of orchid, grass, and fish is the cell.
HELP ONLY IF YOU KNOW PLEASE!!
A species of beetle can be either black or brown in color. The beetle's color is determined by a single gene, and black is recessive to brown. The soil in the area has become darker and closer in color to the black beetles. Which of the following will most likely occur?
Selective pressures will decrease the number of brown beetles.
Selective pressures will increase the number of brown beetles.
Selective pressures will decrease the number of black beetles.
The overall size of the beetle population will continue to decrease over time.
Answer:
the first option
Explanation:
As the soil gets darker, brown beetles become easily recognised by predators (like birds) and will be eaten. Black beetles however, are better camouflaged and will less likely be spotted by the birds. Black beetles will survive and interbreed, allowing the recessive allele to be passed on to upcoming generations.
Selective pressure is what makes the genetic pool shift toward a particular genotype with a particular phenotype (recessive black in this case) that gives the new generations a selective advantage. They're more likely to survive and reproduce. Survival of the fittest.
Genotype- the genetic makeup of an organism (eg: the recessive gene for black; bb)
Phenotype- physical feature of an organism as determined by the genotype (the colour black)
Selective pressures will increase the number of brown beetles. The correct option is 2.
What is Selective pressure?Any factor that reduces or increases reproductive success in a subset of a population may exert evolutionary pressure, selective pressure, or selection pressure, thereby driving natural selection.
Selection pressure can be defined as a force that causes an organism to evolve in a specific direction.
It is not a physical force, but rather an interaction between natural variation in a species and environmental factors that causes certain forms to have an advantage over others.
A beetle species can be either black or brown in color. A single gene determines the color of the beetle, and black is recessive to brown.
The soil in the area has darkened and taken on the color of black beetles. Brown beetle populations will increase as a result of selective pressures.
Thus, the correct option is 2.
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what is the main difference between photosynthesis and cellular respiration
Answer:
Photosynthesis converts carbon dioxide and water into oxygen and glucose. Cellular respiration converts oxygen and glucose into water and carbon dioxide.
Explanation:
Based on the cell cycle, if you were going to look at a group of cells under a microscope, how many cells would be in interphase and how many would be in mitosis?
When heat is introduced to matter, what happens to the matter at the molecular level?
Explain in science
Answer:
When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. The end result of increased molecular motion is that the object expands and takes up more space.
Explanation:
Help me with this please
Answer:
1. b
2. a
3. a
4. b
5. b
6. a
7. a or b (they're the same)
(Punnett square and chart attached)
Explanation:
1. The father is a non-roller, as was given in the question. Remember that a phenotype is the physical trait displayed by an organism.
2. In order for the father to be a non-roller, the recessive non-roller allele would have to be expressed. In order for this to happen, he would need two recessive alleles.
3. The gene for tongue rolling is dominant, so if the mother is heterozygous (she has one dominant allele and one recessive allele), then she will be a tongue roller.
4. The mother has a dominant allele and a recessive allele.
5. 50% of the offspring have the Rr genotype and 50% have the rr genotype. This means that there is a 50% of having a tongue-rolling child and a 50% chance of having a non-rolling child.
6. Because the possibility of the offspring having either genotype is 50/50, the ratio would be written as 1:1. Both outcomes are equally likely.
7. Because the possibility of the offspring having either phenotype is 50/50, the ratio would be written as 1:1. Both outcomes are equally likely.
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Which structure does the immune system target in type 1 diabetes?
a. beta cells of the pancreas
b. liver cells that release glucose
c. insulin receptors on fat cells
d. red blood cells in the bloodstream
Answer:
The thymus plays an important role in deletion of potentially autoreactive T cells. However, the presence of islet-specific T cells in the circulation of type 1 diabetes patients and healthy subjects indicates that the thymus is not capable of efficiently deleting all autoreactive T cells (Mathis and Benoist 2009).
Explanation:
Answer:
A: beta cells of the pancreas
Explanation:
Type 1 diabetes makes the pancreas produce little to no insulin.
Complete the passage about the process of subduction.
The subduction of
boundary often forms volcanoes. This phenomenon occurs because the underground pressure squeezes water out of the dense crust, and this water works its way into the mantle. The water
the mantle and allows for the creation of magma.
The collision between an oceanic and a continental plate, or two oceanic plates originate volcanoes. a) oceanic crust at convergent boundary b) heats up.
What are convergent boundaries?Collision area between two plates. Two continental plates might collide, or two oceanic plates, or one oceanic plate with a continental one.
In the last two cases, the thicker and older plate subduces under the other plate, and magma rises to the surface by crevices. The Himalayas and Los Andes are examples of these collisions.
Plates' movement might produce earthquakes. Also, collisions create volcanic arches and continental arches.
When one of the plates sinks under the other one, it reaches a depth where it melts and magma rises. Volcanoes get formed on the superior plate since magma flows over it.
The subduction of oceanic crust at convergent boundary often forms volcanoes. This phenomenon occurs because the underground pressure squeezes water out of the dense crust, and this water works its way into the mantle. The water heats up the mantle and allows for the creation of magma.
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Answer:Ocean crust at a convergent / heats up
Explanation:
An organism has many cells, but cannot move. It does not eat food, but cannot perform photosynthesis cither. What kingdom does it belong to? A,Kingdom fungi, B,Kingdom plantae, C,Kingdom Protista D,kingdom Animalia
Answer:
Explanation:A,Kingdom fungi
Write a set of directions for a red blood cell to deliver oxygen to the brain. Lungs heart-brain aorta arteries veins
Answer: How does oxygen get into the bloodstream? Inside the air sacs, oxygen moves across paper-thin walls to tiny blood vessels called capillaries and into your blood. A protein called haemoglobin in the red blood cells then carries the oxygen around your body.OK Our typical red cell passes from the capillary into the venules, and then into veins. It flows back to the right side of the heart, completing the second loop of its circuit [music out]. As we saw, it then travels back to the lungs.The heart, blood and blood vessels work together to service the cells of the body. Using the network of arteries, veins and capillaries, blood carries carbon dioxide to the lungs (for exhalation) and picks up oxygen. From the small intestine, the blood gathers food nutrients and delivers them to every cell.
hope this helps have a awesome night/dayExplanation:
Match the mechanism to the most likely outcome for each column. One mechanism may be chosen more than once.
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Which will occur when two organisms in the same habitat occupy the same niche?
A.competition
B.mutation
C.geographic isolation
D.symbiosis
Answer:
abcdefs
Explanation:
What color would the bby and water turn with plants in the dark
Answer:
The water is drawn in the xylem through capillary action and is dispersed through out the entire plant from stem to tips of the leaves and petals. When the water is colored, the color from the water can stain the plant, especially if it is a light colored plant, such as the white petals on our flowers.
Explanation:
PLEASE HELP! Giving extra points & will mark as Brainliest!
1.Looking at the map of epicenters shown above, what do you notice about the location of most of the worlds earthquakes? What patterns do you notice?
2. Explain the pattern of the earthquake epicenters shown on the map. Why do most of the world’s earthquakes occur in these areas?
Answer:
the answer is jesus... the answer to everything is jesus
Explanation:
he is the son of god and died for our sins
Respiration is a complicated process broken into several steps, but only two reactants are used up in the
reaction and only three molecules are produced, Identify the reactants and products and describe the steps in
which they are used or produced.
solve those fast 2412412
:With an increase in global climate change occurring, explain some possible effects global
climate change can have on organisms
Answer: rising sea levels
Harsher/more frequent natural disasters
what are two reasons scientist use shared traits to classify organisms
Answer:
So that we can identify them in the same species.
Explanation:
Many animals have similar species but different genus.
Food chains and food webs are....... used to describe energy transfers
Answer: As it goes down in the food chain, and as the energy is passed, only 10% is kept as energy- the rest is lost as heat.
Explanation: