Answer:
The electron transport chain is a cluster of proteins that transfer electrons through a membrane within mitochondria to form a gradient of protons that drives the creation of adenosine triphosphate (ATP).
Explanation:
Brainliest Please!
a neuron that synapses in the adrenal medulla is a ___________ neuron, and releases the neurotransmitter ___________.
Answer:
preganglionic; acetylcholine (ACh)
Explanation:
Around what time was the cure for scurvy found?
Explanation:
During the Age of Sail, it was assumed that 50 percent of the sailors would die of scurvy on a major trip. A Scottish surgeon in the Royal Navy, James Lind, is generally credited with proving that scurvy can be successfully treated with citrus fruit in 1753.
Answer:
in 1747 by James Lind ......
A particular diploid plant species has 48 chromosomes, or two sets. A mutation occurs and gametes with 48 chromosomes are produced. If self-fertilization occurs, the zygote will have _____ set(s) of chromosomes.
Answer:
4 sets
Explanation:
Both gametes will each have 48 chromosomes (2 sets). So if fertilisation were to occur, two of those gametes (both with 2 sets each) the zygote will have 4 sets.
If self-fertilisation occurs, the zygote will have two set(s) of chromosomes.
What is self fertilisation?Self-fertilization, also known as self-pollination, is a type of sexual reproduction in which a hermaphroditic or monoecious organism fertilizes its own gametes. This means that the male and female reproductive organs are present in the same individual, allowing for self-fertilization to occur.
In plants, self-fertilization can occur through a variety of mechanisms, including self-pollination by wind or gravity, or by the transfer of pollen from the anther to the stigma of the same flower. Self-fertilization can also occur in animals that are hermaphroditic, such as some species of snails and slugs.
Self-fertilization can have both advantages and disadvantages for the organism. It can ensure reproduction in isolated or low-density populations, but it can also limit genetic diversity and increase the risk of inbreeding depression.
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what happens if the cell membrane does not pinch inward during telophase?
Answer:
It doesn’t pinch in for a plant cell because a plant cell has a cell wall. It grows a cell plate
I’m animals cells it should pinch in, but if it doesn’t, the cell can’t divide and you just end up with one cell containing 2 nuclei
What is the term describing the process that occurs when a species evolves into a new species without a physical barrier separating populations?
Answer:
Sympatric speciation should be correct.
Explanation:
Hope this helps.
interphase definition ?
Answer:
The resting phase between successive mitotic divisions of a cell, or between the first and second divisions of meiosis.
Answer:
the resting phase between successive mitotic divisions of a cell, or between the first and second divisions of meiosis.
the atmosphere of earth is comprised mostly of oxygen and
Answer:
Nitrogen
Explanation:
The air in the atmosphere is made out of 78% Nitrogen, 21% oxygen, and 1% other gases.
Why isn’t color a very useful property in identifying a mineral?
Answer:
Generally, color alone is not the best tool in identification because color can be highly variable. Some minerals can occur in a variety of different colors due to impurities in the chemical makeup of the mineral.
Explanation: Hope that's what your looking for.
HELLLP!!!!! Seeds are one way that plants reproduce. What are the reproductive advantages of using seeds to reproduce? What are the two major divisions of seed plants, and how do plants in each of these divisions reproduce?\
Explanation:
1-Seeds provide a protective coat so that the embryo plant can develop when it finds a nice piece of soil.
2-Vascular plants are subdivided into two classes: seedless plants, which probably evolved first (including lycophytes and pterophytes), and seed plants. Seed-producing plants include gymnosperms, which produce “naked” seeds, and angiosperms, which reproduce by flowering.
Here u go <3
Answer:
The Seed Coat. The seed coat is one major advantage seeds have over spores. Nourishment. Each seed contains nourishment for the embryo inside the seed.
Explanation:
What factors affect a person's daily energy requirements?
Answer:
Gender, age and body weight are the main determinants of total energy expenditure. Thus, energy requirements are presented separately for each gender and various age groups, and are expressed both as energy units per day and energy per kilogram of body weight.
Explanation:
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Answer: 1 people 2 sleep 3 relationship(s)
Explanation:
the people that person is most commonly with has an affect on their endergy because if the people are able to stay up all night the person has less energy which leads to sleep if the person loses sleep they wont have energy and the brain wont function as fast and wont be able to enjoy time with friends and family which leads to relation ships which are created and monitered by the brain if person A is always near person B person A and B will have a relationship called friend ship if brother A is and sister A are twins they will most likely try to do things together or destroy any bonds they have with eachothers friends.
If 2n=46 for a particular cell, then the chromosome number in each cell after meiosis would be
a. 92
b. 46
c. 23
d. 6
e. none of the above
Answer:
C. 23
Explanation:
In humans (2n = 46), who have 23 pairs of chromosomes, the number of chromosomes is reduced by half at the end of meiosis I (n = 23).
1. Where does the energy of food originally come from?
how long does it take for sperm to fertilize an egg?
Answer:
It takes about 24 hours for sperm to fertilize an egg....
Explanation:
When the sperm penetrates the egg, the surface of the egg changes so that no other sperm can enter. At the moment of fertilization, the baby's genetic makeup is complete, including whether it's a boy or girl...
What is the blood vessel that shunts blood from the pulmonary artery to the aorta during fetal life called
Answer:
the ductus arteriosus . I hope this helps you
You are examining a human blood smear under the microscope and note a large cell with a bilobed nucleus and orange-red granules in the cytoplasm. Identify the cell.
are there other tests that could be used to determine if cyclohexanol is present in your product? give at least one test with some detail of the expected result for the presence of cyclohexanol.
One of the many tests that may be used to identify the presence of cyclohexanol in a product is that of the Lucas test.
The Lucas test is a chemical reactant test to determine the presence and level of alcoholism in a solution. Cyclohexanol has many chemical properties as do most substances, one of which is the presence of an alcohol group.
The presence of this chemical group makes it possible to test for cyclohexanol using the Lucas test. The Lucas test will cause reactions in the presence of alcohol and transform alcohols into chloroalkanes, which tend to be nearly insoluble in aquatic solutions. Given this, a positive result will look like the solution separates into a cloudy chloroalkane-containing part on top of a much clearer layer.
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Which of the following is another name for ova?
Answer:
d. All of the above
Explanation:is correct. post protected
Answer:
All of them are the same word
Which type of tooth is used to fragment foods into ever-smaller chunks by shearing, slicing, crushing, and griding
To maintain homeostasis, ADH functions via a ______ feedback mechanism that responds to blood ______ concentration.
Answer:
negative, salt
Explanation:
ADH functions via a negative feedback mechanism that responds to blood salt concentration to maintain homeostasis.
What is homeostasis?In order to maintain a constant state between internal conditions and the external environment, a cell's response to its environment is known as homeostasis.
Because of their complexity and uniqueness to living things, the coordinated physiological responses that keep the majority of the body's dynamic equilibrium in place have been given the name "homeostasis."
Ex: When it's cold outside, we start to shiver and use energy to stabilize our body temperature. This is where the cell regulates cell temperature, fluid balance, sugar balance, etc. through it.
Therefore, there is negative feedback that responds to blood salt concentration.
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the process that continually adds new material to the ocean floor
Answer:
Sea-floor spreading i think not a 100 percent.
Explanation:
Carol and Sam were using the microscope in science class. They used a dropper to put some pond water on their microscope slide. This is what they saw. "That is something living," said Sam. "I don't think so," said Carol. What do you think? Explain. Question 13 options: This is not alive. It is not moving or responding. This sample is made of identical units. It is not alive. This is a multicellular organism made of cells. It is living.
Answer: Sam is correct
Explanation:
Ponds use microrganisms
So pretty much that’s why it isn’t safe to drink since it has germs
I lived in Africa around 15 mya. I had bilophodont molars ad a frugivorous diet. I had some adaptations for terrestrial quadrupedalism. What fossil primate am I
Answer: Victoriapithecus
Explanation:
Blood flow to the right side of the heart muscle decreases due to constriction of the __________, and decreased blood flow to the heart tissue can result in
explain four ways in which saprophytes are economically important in nature.
Answer:
They break down dead and decaying organic matter into simple substances
Explanation:
.
which hormone released from the hypothalamus regulates gonad function?
help me pls:
7. Distinguish among asymmetry, radial symmetry, and bilateral symmetry.
8. Define cephalization. What is its relationship to bilateral symmetry?
Answer:
Bilateral symmetry because animals are able to be cut down the middle and have two equal half’s.
Explanation:
Cephalization means an evolutionary trend where nervous tissue over many generations become concentrated on one end of the organism........... I hope this helps !!!!!
umm... but UwU❤️❤️
The movement of water dissolved minerals , and food and other organic molecules in a plant is called
Where does mixed livestock and crop farming predominantly occur?
Answer:
Asia and in countries such as India, Malaysia, Indonesia, Afghanistan, South Africa, China, Central Europe, Canada, and Russia.
Explanation:
Secretory IgA is best described as _____.
A. an opsonizing antibody that facilitates uptake by M cells through Fc receptors
B. a monomeric IgA that neutralizes antigen effectively at mucosal surfaces
C. an inflammatory immunoglobulin that stimulates the chemotaxis of neutrophils into mucosal surfaces
D. a complement-activating immunoglobulin that causes destruction of invasive microflora through the membrane-attack complex
E. a non-inflammatory immunoglobulin that restricts the passage of antigens across mucosal surfaces
Answer:
d.
Explanation:
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Pith is composed of ______. Multiple choice question. companion cells sclerenchyma cells collenchyma cells parenchyma cells
Answer:
parenchyma cells
Explanation: