Gregor Mendel’s research formed the basis of the field of
genetics.
dominance.
recessiveness.
selective breeding.
Answer:
The answer is genetics
Explanation:
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What is the probability that a hamster will have black, fine hair?
A) 2/16 (1/8)
B) 4/16 (1/4)
C) 1/16
D) 8/16 (1/2)
what makes a cell responsive to a particular hormone?
The presence of a receptor for that particular hormone
What is the relationship between the light-dependent and light-independent reactions of photosynthesis
Answer:
In the light-dependent reactions, energy from sunlight is absorbed by chlorophyll and that energy is converted into stored chemical energy. In the light-independent reactions, the chemical energy harvested during the light-dependent reactions drives the assembly of sugar molecules from carbon dioxide.
Explanation:
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A student made a list of structures are observed in cells from two different organisms which statement describes the most likely difference in the way that organism one and organism two obtain energy
QUESTION 8
A cell has 14 chromosomes. How many chromosomes will it have after it undergoes cytokinesis in mitosis?
OA) 7
B) 28
OC) 14
D)2
E) none
Answer:
C) 14
Explanation:
There would be 2 daughter cells, but each would have 14 chromosomes
while a neuron membrane is depolarizing its __________.
Given what we know about the depolarization of neurons, we can confirm that while a neuron membrane is depolarizing its sodium gates are fully open.
Throughout the human body, sodium is often used to cause shifts in membrane potentials, as well as a variety of other metabolic processes, due to the electric charge of this ion. One such example is the neuron, which uses a flood of sodium ions to depolarize its membrane.
During depolarization, the membrane potential changes from a negative charge to that of a positive one. This is caused by the rapid flooding of sodium into the cell, which increases the positive charge in the interior of the cell and thus affects the membrane's potential.
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where does the electron transport chain get the high-energy electrons that are passed down the chain
Answer:
It gets the electrons from NADH and FADH2, which are produced in the Krebs cycle.
Explanation:
in most sexually reproducing organisms, the diploid phase of the life cycle begins at
The diploid phase of the life cycle begins with the formation of the zygote.
Meiosis is referred to the type of cell division which occurs in the production
of male and female sex cells. This also occurs during sexual reproduction.
Parent cells provide male and sex cells such as sperm and egg which
contains DNA. They then fuse together to form a zygote which is the diploid
phase as a result of the fusion of two haploid cells. The zygote then
continues to undergo some meiotic processes which reduces it to back to a
haploid cell and consequent growth to form a fetus.
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Predict how the absence of phytoplankton in the coral reef could affect the entire community
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Producers– These are autotrophic organisms which make their food through photosynthesis. Green plants, algae, and chemo-synthetic bacteria are all examples of producers in marine habitats.
When a person begins to walk, the neurons in the ______ stimulate the appropriate muscles to produce the pattern and rhythm of arm and leg movements associated with walking.
Answer:
caudate nucleus
Explanation:
When a person begins to walk, the neurons in the caudate nucleus stimulate the appropriate muscles to produce the pattern and rhythm of arm and leg movements associated with walking
what is the other name for the autonomic nervous system?
Answer:
visceral motor system
Explanation:
Another name for the autonomic nervous system is the visceral motor system.
The principle that we encode information together with its context is known as encoding a. transcription. b. priming. c. consolidation. d. specificity.
1) Consider the image seen here. The image, at point Y, represents the process of
es
A) hydrolysis; lipid
B) hydrolysis; saturated fat
dehydration synthesis, lipid
D) dehydration synthesis, protein
Answer:
you did put a picture but im pretty sure its a lipids
Explanation:
how do mirnas function in controlling gene expression?
Answer:
The genes of the ath operon code for the enzymes necessary to use athelose as an energy source. ... How do miRNAs function in controlling gene expression? by binding to mRNAs and degrading them or blocking their translation. Name the starting molecule from which cDNA is synthesized and the enzyme that does the synthesis
Explanation:
What is needed for natural selection to occur? select all that apply.
algien conoce a yaninsoto y tiene esta foto de perfil xd
Answer:
no, pero es un show si es dime cual es el nombre del show
QUESTION: If there was no atmosphere around Earth, how would that impact your life in the planet?
Have you ever wondered what would happen if Earth lost its atmosphere? It's believed that the planet is slowly losing its atmosphere, bit by bit, as it bleeds off into space. But what if Earth instantly lost its atmosphere, all at once? Just how bad would it be? Would people die? Would everything die? Could the planet recover?
What Would Happen?
Here's a breakdown of what could be expected:
It would be silent. Sound requires a medium to transmit waves. You could feel vibrations from the ground, but you wouldn't hear anything.
Birds and planes would fall from the sky. Although we can't see air (except clouds), it has mass that supports flying objects.
The sky would turn black. It's blue because of the atmosphere. You know those pictures taken from the Moon? The Earth's sky would look like that.
All unprotected plant and animal life on the Earth's surface would die. We can't survive long in a vacuum, which is what we'd have if the atmosphere suddenly vanished. It would be much like being "spaced' or shot out of an airlock, except the initial temperature would be higher. Eardrums would pop. Saliva would boil. But you wouldn't die instantly. If you held your breath, your lungs would pop, which would be the quickest (albeit most painful) death. If you exhaled, you'd pass out in about 15 seconds and die in around three minutes. Even if you were handed an oxygen mask, you wouldn't be able to breathe. This is because your diaphragm uses the pressure difference between the air inside your lungs and outside your body to inhale.
Let's say you have a pressure suit and air. You'd live, but you'd get a massive sunburn on exposed skin because the Earth's atmosphere is what filters solar radiation. It's hard to say how much trouble you'd be in from this effect on the dark side of the planet, but being in direct sunlight would be severe.
The rivers, lakes, and oceans would boil. Boiling occurs whenever vapor pressure of a liquid exceeds external pressure. In a vacuum, water readily boils, even if the temperature is warm. You can test this yourself.
Although water would boil, the water vapor would not fully replenish the atmospheric pressure. An equilibrium point would be reached where there would be enough water vapor to prevent the oceans from boiling off. The remaining water would freeze.
Eventually (long after surface life had died), solar radiation would break atmospheric water into oxygen, which would react with carbon on the Earth to form carbon dioxide. The air would still be too thin to breathe.
The lack of atmosphere would chill the Earth's surface. We're not talking absolute zero cold, but the temperature would drop below freezing. Water vapor from the oceans would act as a greenhouse gas, raising the temperature. Unfortunately, the increased temperature would allow more water to transition from the sea into the air, likely leading to a runaway greenhouse effect and making the planet more like Venus than Mars.
Explanation:
Organisms that need air to breathe would die. Plants and land animals would die. Fish would die. Most aquatic organisms would die. However, some bacteria could survive, so losing the atmosphere wouldn't kill all life on Earth. Chemosynthetic bacteria wouldn't even notice the loss of atmosphere.
Volcanoes and geothermal vents would continue to pump out carbon dioxide and other gases to add to the water. The most significant difference between the original and new atmosphere would be the much lower abundance of nitrogen. Earth could replenish some nitrogen from meteor strikes, but most of it would be lost forever.
Could Humans Survive?
There are two ways human beings could survive losing the atmosphere:
Build radiation-shielded domes on the Earth's surface. The domes would need a pressurized atmosphere and would need to support plant life. We would need time to build biodomes, but the result would not be much different from trying to survive on another planet. Water would remain, so there would be a source of oxygen.
Build a dome under the sea. The water could provide pressure and filter out some solar radiation. We wouldn't want to filter out all radiation because we'd probably want to grow plants (though maybe it would be possible to learn some tasty ways to prepare bacteria as food).
What is a reflex? [Science]
A. Similar nerve cell bodies grouped together in a nervous system.
B. Interaction of the information passing through neurons.
C. Behavior that doesn’t not involve the “higher” centers of an animal’s brain.
D. Part of the nervous system that connects the sensory receptors to the muscles.
Answer:
A
Explanation:
What is the major consideration in setting the lower limit of cell size?
A. The cell size must be small as to fit all the processes and structures to support life.
B. The cell must be large enough to fight the pathogens.
C. The cell must be large enough to attach to a substrate.
D. The lower limit should be small enough for the cell to move in the fluid efficiently.
Answer:
c
Explanation:
The lower limit should be small enough for the cell to move in the fluid efficiently. Therefore, option (D) is correct.
The major consideration in setting the lower limit of cell size is the need for the cell to move in fluid efficiently. As cells become smaller, their surface area-to-volume ratio increases, allowing for more effective exchange of nutrients, gases, and waste products across their membrane.
This is particularly important for cells living in fluid environments where diffusion plays a crucial role in these exchanges. Small cells have an advantage in absorbing and expelling substances due to their larger surface area relative to their volume. Therefore, the efficiency of nutrient uptake and waste removal becomes more effective with smaller cell sizes, making efficient movement in fluid environments a significant factor in determining the lower limit of cell size. Thus, option (D) is correct.
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most of the energy that your brain uses comes from
Answer:
Glucose
Explanation:
The brain is an energy-hungry organ. Despite comprising only 2 percent of the body’s weight, the brain gobbles up more than 20 percent of daily energy intake. Because the brain demands such high amounts of energy, the foods we consume greatly affect brain function, including everything from learning and memory to emotions.
Just like other cells in the body, brain cells use a form of sugar called glucose to fuel cellular activities. This energy comes from the foods we consume daily and is regularly delivered to brain cells (called neurons) through the blood.
Studies suggest the quality of the foods consumed over a lifetime affects the structure and function of the brain. For instance, the consumption of omega-3 fatty acids found in fish provides structural material to maintain neurons. Studies also suggest omega-3 fatty acids are essential for the transmission of information between brain cells. In contrast, foods that are rich in sugars and saturated fats have been found to promote oxidative stress, which leads to damage to cell membranes.
The food you eat also affects molecules in the brain that support cognition. Some foods, such as those with turmeric, support cognition by helping to maintain molecular events related to energy metabolism.
Recent studies suggest lifestyle choices that affect the metabolism of nerve cells, such as diet and exercise, may in some cases provide a non-invasive and effective strategy to counteract neurological and cognitive disorders.
The outermost layer of rock on the earth is called
the crust, which includes the continental crust
and oceanic crust. Why is the oceanic crust
much thinner than the continental crust,
but much more dense?
A it's composed of silica which
is high in oxygen and silicon
B it's composed of basalt which
is high in iron and magnesium
C it's under the ocean
D it's younger
Answer:
B
Explanation:
The density of continental crust is 2.9 g/cm^3. Oceanic crust, while thinner, is made of mafic materials (Fe, Mg)-- mainly basalt
Which statement best explains how enzymes speed up chemical reactions?
a) Enzymes change shape during chemical reactions,
b) Enzymes use light energy to speed up chemical reactions
c) Enzymes lower the activation energy of a reaction.
d) Enzymes gain heat from chemical reactions
what color indicates the presence of a high level of simple sugars
Answer:
Brown
Explanation:
Greens the lowest while Brown is the highest
In ________ the gametophyte is more obvious than the sporophyte. A. grasses B. mosses C. conifers D. ferns
Answer:
Mosses is the correct answer
I learned that prayer is _______ to god, who is never busy to hear my prayers.
Answer: I learned that prayer is talking to god, who is never busy to hear my prayers.
Explanation:
Name the two major components of chloroplasts, and associate each with one of two sets of
reactions that occur during photosynthesis. How are the two sets of reactions related?
Explanation:
i dont knowwwwww sorryyyyy
The ________, which stains dark as it contains pigments and blood vessels, is just underneath the retina.
The choroid stains dark as it contains pigments and blood vessels. It is
located underneath the retina. It also lies between the retina and the sclera.
The choroids are very rich in connective tissues( blood vessels) which help
supply the retina with vital nutrients needed for proper eyesight.
The choroids are usually thickest at the extreme rear end of the eye and also helps to maintain a constant eye temperature and volume. This is
important to prevent changes in eye size and temperature which may cause
eye destruction and diseases .
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Which is true about water molecules?
A. Water molecules are nonpolar, meaning their charges balance each other out.
B. Water molecules are polar, meaning they have a net partial negative charge.
C. Water molecules are polar, meaning they have partial negative and positive
charges.
D. Water molecules are nonpolar, meaning they do not interact with each other.
Answer: C
Explanation: Water is a polar molecule because the electrons of the hydrogen atoms get "pulled" towards the electrons of the oxygen atom. Which is both positive and negative on opposite ends.
It could be B as well but, I believe it's C
Pith is composed of ______. Multiple choice question. companion cells sclerenchyma cells collenchyma cells parenchyma cells
Answer:
parenchyma cells
Explanation: