Answers
Answer:
They both have a petiole
Explanation:
Leaf A and Leaf B both possess a petiole.
A petiole is the part of the leaf found beneath it which attached the leaf to a stem.
Observing both leaves, they both have this in common. Therefore, they are similar because they both have petiole.
Related Questions
How do plant cells make store and transport proteins?
Answers
Whereas the majority of proteins pass through the Golgi on their way to other cell destinations,
How are proteins transported in plant cells?In plant cells, the Golgi gear is the key organelle for polysaccharide and glycolipid synthesis, protein glycosylation, and protein classification towards various cellular sections either by vesicular shuttles or through the maturation of cisternae from the cis‐ to the trans‐face, a digit of membrane proteins reside in the dissimilar Golgi.
Plants move proteins inside these cells. This procedure, known as protein transport, is the footing for a complex biological response mechanism. During every second of a plant cell's life, a host of protein transports take place.
So we can conclude that There are many storage proteins in plant tissues that gather into protein storage compartments.
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The amount of water inside a cell is a higher concentration than its external environment. If the cell is to maintain homeostasis, what must happen?
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If the amount of water inside a cell is higher than its external environment, the cell must prevent water from flowing out of the cell to maintain homeostasis. This is done through the use of a selectively permeable membrane and various transport proteins.
A selectively permeable membrane is a barrier that surrounds the cell and only allows certain molecules to pass through. The membrane is made up of lipids and proteins, which act as gatekeepers to control the movement of molecules in and out of the cell. The membrane is selectively permeable, meaning it allows only certain molecules to pass through, such as oxygen and nutrients, and prevents others, such as toxins, from entering the cell.
In addition to the membrane, cells also have various transport proteins that help move molecules across the membrane. Some transport proteins, such as aquaporins, are specifically designed to transport water across the membrane. These proteins allow the cell to actively pump water into the cell against the concentration gradient, which is necessary to maintain homeostasis.
Overall, in order to maintain homeostasis, the cell must prevent water from flowing out of the cell, which is done through the use of a selectively permeable membrane and various transport proteins that act as gatekeepers to control the movement of water and other molecules in and out of the cell.
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What are the two main components of the cell membrane
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Ecology is best defined as the study of
A. populations.
B. rate of population changes.
C. communities.
D. organisms as they interact with other organisms and with their physical surroundings.
Answers
Ecology is the scientific study of the interactions and relationships between organisms and their physical environment. Thus option D is the correct answer.
It encompasses the study of populations, communities, and ecosystems, as well as the processes that drive changes in these systems over time.
Ecology also examines the impact of human activities on natural systems and seeks to understand the mechanisms that maintain the health and productivity of ecosystems.
This multidisciplinary field draws on concepts and techniques from biology, chemistry, physics, geology, and other sciences to provide a holistic understanding of the natural world and its functioning.
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with one example for each , briefly describe the types of motion in walking gait of mammals.
Answers
In the walking gait of mammals, the two main types of motion are sagittal plane motion and transverse plane motion.
The sagittal plane motion refers to the forward and backward movement of the limbs, as they swing forward and backward in the sagittal plane. For example, during a walking gait, the pelvis and trunk of a mammal move in a sagittal plane as one leg is lifted and moved forward, then lowered to the ground, and the opposite leg is lifted and moved forward.
The transverse plane motion refers to the side-to-side movement of the limbs, as they swing out to the side and then back in again in the transverse plane. For example, the hip joint of a mammal moves in a transverse plane, as it rotates to bring the leg forward and then back.
Additionally, there is a rotary motion, which refers to the rotation of the limbs around the long axis of the bone, as the limb moves through the gait cycle. For example, the ankle joint of a mammal rotates during the walking gait, as the foot is lifted, moved forward, and then lowered to the ground.
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4. Plan an experiment that neurobiologists could use to show that an action potential travels faster along a myelinated axon than along a nonmyelinated axon.
Answers
1.Obtain two sets of axons: one set that is myelinated and one set that is nonmyelinated. These could be obtained from an appropriate animal model, such as a rat or a mouse.
2.Measure the diameter of both sets of axons to ensure that they are similar, as the diameter of an axon can affect the speed of an action potential.
3.Stimulate the axons using an electrical stimulus of the same intensity and duration.
4.Measure the time it takes for the action potential to travel along both sets of axons using an appropriate technique, such as patch clamp recording or voltage sensitive dye imaging.
5.Compare the time it takes for the action potential to travel along the myelinated axons versus the nonmyelinated axons.
6.Show that the action potential travels faster along the myelinated axons than the nonmyelinated axons.
7.Conduct statistical analysis of the data to ensure that the results are significant.
8.The result will demonstrate that myelination does plays a role in increasing the speed of action potential.
Note: The experimental design would be more complicate and might include more steps, controls and experimental groups, this is just a basic idea on how to approach the experiment, also the actual experiment will be more specific to the research lab and the resources available.
You are a scientist trying to determine whether a new drug will help treat heart disease. All of the following will generally increase the strength of your scientific study and your confidence in the results, except:
A) Increasing the number of patients in the study
B) Giving a placebo to the control group, thus controlling for the possibility that there will be a psychological effect of just receiving a pill
C) Making sure that the person handing out the pills knows which patients are getting a placebo versus which are getting the treatment
Answers
You are indeed a scientist investigating whether a novel medication will be successful in treating heart disease. Increase all other aspects of your scientific investigation, with the exception of patient enrollment.
Describe the heart.The diameter of a fist, your heart is located in the center of your chest, leaning marginally to the left. It is the muscle that your circulatory system depends on to pump blood throughout your body while your heart beats.
How is the heart's function?Your heart beats roughly 100,000 times every day. Your circulatory system is a network of coronary arteries that continuously circulates around five liters of blood throughout your body. In order to support your organs, this blood transports oxygen and vitamins to various body areas.
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Fill In The Blanks Below
Choosing a fuel for a new machine is an important part of the design process and must take into consideration any environmental impact and waste produced by using the fuel. Fossil fuels, _______ resources including ________, natural gas, and oil, produce large amounts of harmful _______ when burned. Sustainable fuels, ______ resources including _______ and wind power, are considered more environmentally friendly because they do not produce much any waste. These fuels, however, can still have a large impact on the environment aesthetically by requiring large tracts of land for power collectors. So the pros and cons of each fuel must be weighed before choosing a fuel for the project.
Options:
greenhouse gases, solar power, renewable, nonrenewable, coal
Answers
2. coal
3. greenhouse gases
4. renewable
5. solar power
An ecosystem is a natural unit consisting of all the living organisms in an area functioning together with all the nonliving physical factors of the environment.
Answers
Answer:
An ecosystem is a community of living organisms (biotic factors) and nonliving (abiotic) factors that interact with one another.
Explanation:
An ecosystem includes all of the living things (biotic factors) in a given area, interacting with each other and also with their non-living (abiotic) environment.
Ecosystems are larger than a habitat, or a community or a forest type.
This is the process best utilized for brisk walking and jogging:
A. photosynthesis
B. anaerobic respiration
C. aerobic respiration
HINT: the answer is C
Answers
uuuhhhh it legit says the answer is c-
Identify one trait that both F and G have, but H does not.
Answers
Because its where F & G both connect, and H doesn’t connect until 14.
please help!! Match the image to the phenomena it is showing. (MS-ESS1-1)
Answers
Image 1 is a solar eclipse
Image 2 is a lunar eclipse
What is an eclipse?An eclipse is an astronomical event that occurs when one celestial body, such as a moon or planet, moves into the shadow of another celestial body.
There are two main types of eclipses: solar eclipses, in which the moon blocks the sun's light from reaching the Earth, and lunar eclipses, in which the Earth blocks the sun's light from reaching the moon. These events can only happen during a new moon phase.
The kind of eclipse that has taken place can be seen when we look at the images that have been shown above.
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Which of the following traits evolved last (most recently) on the one small step phylogeny? Digits eyes On top of flat head strong armlike bones not enough Information
Answers
C. Strong arm like bones was a trait evolved last according to "one small step" phylogeny.
How is a phylogenetic tree made? What is it?A phylogenetic tree is a pictorial display of the evolutionary relationships between various organisms. Phylogenetic trees are hypotheses rather than established truths. A phylogenetic tree's branching pattern demonstrates how several species or other groups developed from a number of common predecessors. Nowadays, DNA or protein sequences are used to generate the majority of phylogenetic trees.
Why is phylogenetic analysis used?Phylogenetics is a powerful method for figuring out how modern species have evolved. Scientists can explain the similarities and differences between species and learn more about how species have evolved by examining at phylogenetic trees.
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Which of the following traits evolved last (most recently) on the "one small step" phylogeny?
A) Digits
B) eyes On top of flat head
C) strong armlike bones
D) not enough Information to tell
Which of the following cartilaginous joints is found only in young; growing people? (A) costochondral joint (B) pubic symphysis: (C) intervertebral disc (D) epiphyseal plate.
Answers
Epiphyseal plate cartilaginous joints are found only in young; growing people
Children's and adolescents' long bones include a layer of cartilage called the epiphyseal plate, which is also referred to as the growth plate. The longitudinal growth of the bone is caused by this cartilage. Ossification, a process that occurs as a person grows, causes the cartilage to gradually give way to bone tissue, forming an epiphyseal line.
The growth plates vanish and the bones are fully developed after this process is complete, which typically occurs at the conclusion of puberty. Because of this, epiphyseal plate cartilaginous joints are not found in adults; rather, they are only found in children and people who are still growing.
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Eukaryotic cells undergo mitosis, which produces two identical daughter cells. These cells are identical to each other and to the original parent cell. From the options below, select ALL of the reasons why a eukaryotic cell undergoes mitosis and the cell cycle.
Answers
Answer: The formation of a new cell from the old cell is called cell division.
Explanation:
There are two types of cell division.
A cell division that has the same number of chromosomes as the parent cell is called mitotic cell division. The purpose of mitosis is to increase the number of cells to form a tissue.
The increase in the number of cells helps to make the tissue and repair the damaged cell.
Hence, the correct answer is the repair of damaged cells.
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An egg with 22 chromosomes that is fertilized by a normal sperm will result in O nondisjunction during subsequent mitosis. O a zygote with disomy. O a zygote with monosomy. O a zygote with normal chromosome number. O a zygote with trisomy.
Answers
An egg with 22 chromosomes that is fertilized by a normal sperm will result in a zygote with normal chromosome number.
Typically, the male and female gametes (sperm and eggs) have 23 chromosomes apiece. However, occasionally an egg will be missing one chromosome because the chromosomes did not adhere to the spindle fibres appropriately during meiosis.
The egg would then only contain 22 chromosomes. A zygote produced from such an egg would have just 45 instead of the typical 46 chromosomes if fertilised by a normal sperm (containng 23 chromosomes). This ailment is known as monosomy.
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Emulsification of fats in the small intestines is due to the action of bile which is released into the intestine from the
Answers
Answer:
Explanation:
Fat emulsification is the process of increasing the surface area of fats in the small intestine by grouping them into small clusters. This is the responsibility of bile, a liquid created by the liver and stored in the gallbladder.
Both natural processes and human activity are causing some of Earth's permanent bodies of ice to melt. If enough of this ice melts, it will add warm freshwater to the northern Atlantic Ocean, where deep water currents start. What effect is this likely to have on the circulation of ocean water around the globe?
Answers
The melting of Earth's permanent bodies of ice, both through natural processes and human activity, is likely to have a significant effect on the circulation of ocean water around the globe.
What is ocean water?Ocean water is the saltwater found in all the world's oceans. It is composed of a complex solution of salts and other substances, including magnesium, calcium, sodium, and potassium, dissolved in water.
The melting of the ice will add a layer of warm freshwater to the northern Atlantic Ocean, which will mix with the colder and denser deep water currents that start in that region. This could disrupt the formation of deep water currents, which are responsible for driving the global ocean circulation. Without the deep water currents, the global ocean circulation could slow or even stop, leading to a disruption of the global climate system, with impacts on regional temperatures, weather patterns, and ocean life.
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2. When bioengineering food crops, what are scientists manipulating?
PLEASE HELP MEEEE
Answers
The DNA of genetically modified (GE) foods has been altered using genes from other plants or animals. Scientists extract a desired characteristic gene from one plant or animal and implant it into the cell of another plant or animal.
Scientists can use genetic engineering to transfer desirable genes from one plant or animal to another. Genes can also be transferred from one species to another. GMOs are another term for genetically engineered organisms.The technique of developing GE foods differs from selective breeding. This entails choosing plants or animals with desirable characteristics and breeding them. This produces children with the desired characteristics over time.One of the drawbacks of selective breeding is that it might result in undesirable features. Scientists can use genetic engineering to insert a single gene. This prevents the introduction of additional genes with undesired properties. Genetic engineering also helps to accelerate the process of developing novel foods with desired characteristics.
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types of electrophoresis
Answers
Answer:
Electrophoresis is a technique used to separate molecules based on size and charge. There are several types of electrophoresis, including agarose gel electrophoresis, capillary electrophoresis, two-dimensional electrophoresis, and isoelectric focusing.
Explanation:
___and___ are sex hormones secreted by the ovaries
Answers
1. Imagine that you move from Vancouver to Kamloops. Predict how and explain why the average temperatures you experience will now be different in winter and in summer.
GIVING BRAINLIEST
Answers
If I were to move from Vancouver to Kamloops, I would likely experience different average temperatures in winter and summer. This is because Vancouver and Kamloops are located in different regions of British Columbia and have distinct climates.
What is the temperatures about?In Vancouver, the climate is characterized as a maritime climate which is mild with no dry seasons, the average temperature in winter is around 5-8C and in the summer is around 15-20C, the city is known for its rainy weather throughout the year.
On the other hand, Kamloops has a semi-arid climate, which is characterized by hot summers and cold winters. The average temperature in winter is around -5C and in the summer is around 25C, the city is known for its dry and sunny weather throughout the year.
Therefore, the difference in average temperatures in winter and summer is mainly due to the difference in the distance between the two cities and the coastal and inland location. The proximity of Kamloops to the interior of British Columbia results in a greater variation in temperature between the seasons due to the lack of a moderating influence from the ocean.
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just compare and contrast diploid and haploid cells
Answers
Haploid cells carry only a single set of chromosomes. Diploids contain two sets of chromosomes. Haploid cells are created through the process of meiosis. Diploid cells are formed through mitosis.
What is Haploid?Haploid refers to cells containing a single set of chromosomes. The term haploid may also refer to the number of chromosomes a gamete.In humans, gametes are haploid cells containing 23 chromosomes, each one of a pair of chromosomes present in diploid cells. Organisms that reproduce are diploid (from each parent he has two sets of chromosomes, one). Human cells are considered "diploid" because they inherit two sets of her chromosomes, 23 from her mother and 23 from her father, for a total of 46. The only exceptions are germ cells (egg and sperm), which are known as "haploid" cells because they contain one set of 23 chromosomes.To learn more about Haploid from the given link :
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Jaden’s father is not sensitive to poison ivy. Jaden is also not sensitive to poison ivy. Jaden’s lack of sensitivity to poison ivy is which kind of trait?
A) environmental
B) acquired
C) learned
D) inherited
hint: the answer is D)
Answers
Jaden’s father is not sensitive to poison ivy. Jaden is also not sensitive to poison ivy. Jaden’s lack of sensitivity to poison ivy is a kind of trait which is inherited ans is therefore denoted as option D.
What is an Inherited trait?This is referred to as the type of traits which are transmitted by the parent to its offspring during the process of fertilization of the gametes during reproduction and this is made possible through them being coded in our DNA and hence can be passed on to the next generation.
We were told that Jaden’s father is not sensitive to poison ivy. Jaden is also not sensitive to poison ivy which means that the qualities mentioned were inherited by Jaden from his father and is therefore the reason why it was chosen as the correct choice.
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In eukaryotes, nucleoli contain many tandem repeat copies of which genes, transcribed by RNA polymerase I? a. rRNA b. TRNA c. siRNA d. none of the answers is correct e. mRNA
Answers
Genes that are transcribed by the RNA polymerase ribosomal RNA rRNA, a protein in cells that is a component of a nutrient organelle known as just a ribosome, are found in tandem repeat copies in large numbers in the nucleoli of eukaryotes.
What is the purpose of rRNA?Rosposomal RNA rRNA is a molecule found in cells that's also exported to a cytoplasm and is a component of the ribosome, an organelle that produces proteins. It aids in the conversion of messenger RNA (mRNA) from one form of the genetic code to another, called translation.
In which location is rRNA made?The nucleolus is where rRNA in mammalian cells is made. A cell's nucleus contains the nucleolus, which is a substantial structure. The location of rRNA synthesis, it can be found in eukaryotic cells. Some nucleolus-located genes produce the rRNA protein.
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The chambers of the heart are lined with epithelium called __________.
Answers
The heart valves are protected by the endocardium, which also lines the chambers where the blood flows in Epithelium.
It is formed of endothelium, a straightforward squamous epithelium that is continuous with the blood vessel endothelial lining. The endocardium covers the whole interior surface of every heart chamber and is continuous with the blood vessel's inner layer. The lining of the heart's chambers and valves is a thin, smooth tissue called the endocardium. The so inside of the heart's walls, it protects the heart's muscles from the bloodstream and houses vital blood veins.
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In physical map the distance was measured in
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Determine the character state of each character for each plant taxon in the table below. Enter the character state in this table. Examine the plant specimens in lab, the written information accompanying them, and your lab manual to determine the specific character state for each species. We have provided character states to you for many of these. You may need to refer to the next chapter for some of this information.
Answers
For the five plant taxons given, the character states are as follows: Acer has an ovate-shaped leaf and an opposite arrangement, Betula has an ovate-shaped leaf and an alternate arrangement,
| Plant Taxon | Leaf Shape | Leaf Arrangement |
|------------|------------|-----------------|
| Acer | Ovate | Opposite |
| Betula | Ovate | Alternate |
| Quercus | Obovate | Alternate |
| Salix | Elliptic | Alternate |
| Thuja | Linear | Opposite |
1. Acer: Leaf Shape: Ovate; Leaf Arrangement: Opposite
2. Betula: Leaf Shape: Ovate; Leaf Arrangement: Alternate
3. Quercus: Leaf Shape: Obovate; Leaf Arrangement: Alternate
4. Salix: Leaf Shape: Elliptic; Leaf Arrangement: Alternate
5. Thuja: Leaf Shape: Linear; Leaf Arrangement: Opposite
For the five plant taxons given, the character states are as follows: Acer has an ovate-shaped leaf and an opposite arrangement, Betula has an ovate-shaped leaf and an alternate arrangement, Quercus has an obovate-shaped leaf and an alternate arrangement, Salix has an elliptic-shaped leaf and an alternate arrangement, and Thuja has a linear-shaped leaf and an opposite arrangement.
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3. Discuss how the following cells are specialized /modified to their function. a) Root hair cell. (3 marks) b) Guard cell. (3marks) c) Palisade cell. (3 marks)
Answers
Specialized plant cells have specific adaptations that make them good at their function. They include root hair cell, guard cell and palisade cell.
How is the root hair cell modified?Because they have a wide surface area to speed up absorption, root hair cells are designed to absorb water and mineral ions. They also have a large number of mitochondria, which use glucose as fuel during respiration to produce the energy required for active transport.
What is the guard cells' functional modification?Adapted epidermal cells are referred to as guard cells. It has bigger size, chloroplasts, and micro fibrils in the cell wall that are oriented radially. In addition to providing a barrier against pathogenic invasion, each pair of guard cells and the controlled pore they enclose, known as a stoma or stomate, in terrestrial plants serve as a conduit for transpirational water release and atmospheric photosynthetic gas exchange.
How are palisade cells modified to perform their job?Long, thin Palisade Spongy Mesophyll Cells make up the palisade Layer. They are ideal for performing photosynthesis because they are rich in chlorophyll and have a long shape that promotes light absorption.
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Which of the following statements is TRUE about Fungi? All fungi are heterotrophic. All fungi are symbiotic. All fungi are flagellated. All fungi are pathogenic.
Answers
All fungi are heterotrophic is the true statement among the multiple options about fungi.
Fungi are eukaryotic organisms that are often seen as mushrooms, moulds and yeasts. These are heterotrophic organisms found everywhere. All of the fungi are not pathogenic evident by edible usage of mushrooms and yeasts.
Mycorrhiza and lichen are example of symbiotic fungi while Trichoderma is an example of free living fungi. The heterotrophic mode of nutrition of fungi is evident in multiple forms like parasite, saprophyte and holozoic nutrition.
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