Answer:
Nn
Explanation:
Tay-Sachs disease is an inheritable genetic disorder that results in the destruction of nerve cells in the brain and spinal cord. It's caused by the absence of an enzyme that helps break down fatty substances called gangliosides. Their buildup results in the destruction of nerve cells.
Tay-Sachs is inherited in an autosomal recessive manner. This means that a person needs to have two recessive alleles (nn) in order to inherit it. Rebecca is a carrier of the disease but isn't actually ill. This means that she has one recessive (n) and one dominant (N) allele. Thus, her genotype is Nn.
Windy and rainy days are cold why
THIS QUESTION IS DUE IN 10 MINUTES I NEED HELP PLEASE ASAP
Define the term enzyme. Describe how enzymes influence metabolic reactions in the cell.
Answer:
Some enzymes help to break down large nutrient molecules, such as proteins, fats, and carbohydrates, into smaller molecules. Each enzyme is able to promote only one type of chemical reaction
Explanation:
The compounds on which the enzyme acts are called substrates
I try my best
With liguid water underneath its icy surface, Jupiter's moon Europa is often cited as a potential site for extraterrestrial life. What other compunds would indicate that chemosynthesis supports life on the planet. a. oxygen b. glucose c. methane d. hydrogen peroxide
Chemosynthesis Quick Check Answers:
C. hydrogen sulfide
B. alkaliphiles
B. a lanternfish on the Atlantic Ocean floor
D. remove methane and hydrogen sulfide
C. methane
The other compound that would indicate that chemosynthesis supports life on the planet is methane.
The correct option is (C) methane.
What is chemosynthesis?Chemosynthesis is a process of synthesizing an organic compound by bacteria and other living creatures, utilizing energy generated from inorganic chemical reactions, usually in the absence of sunlight.
It is also the use of energy released by inorganic chemical reactions to make food in bacteria and other organisms.
Thus, the compound that indicates that chemosynthesis supports life is methane (C).
Learn more about chemosynthesis, here:
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Diffusion continues until what is reached ?
Answer:
Diffusion will continue until the concentration gradient has been eliminated. Since diffusion moves materials from an area of higher concentration to the lower, it is described as moving solutes "down the concentration gradient." The end result of diffusion is an equal concentration, or equilibrium, of molecules on both sides of the membrane. At equilibrium, movement of molecules does not stop. At equilibrium, there is equal movement of materials in both directions.
ASAP HELP PLSSSS!!!! WILL GIVE BRAINLYEST!!!!!!!!!!1
Could a Type B child with a Type A mother have a Type A father? Explain.
Answer: No
Explanation: Type B is not possible if there are AA parents. The child could have A or O blood if both their parents are type A. Type B is only possible, not certain though, when parents are A and B. If parents are A and B, the child could be A, B, AB, or O.
_____ is caused by stress and is the bending, tilting and breaking of rock.
Some grass species need fire in order for their seeds to germinate. Why might this adaptation be useful for grasses? A. Fire allows trees to grow and to provide shade for the grasses.B. The hot temperature of the fire helps the grasses grow faster. C. Seeds can germinate in an area that has been cleared by a fire. D. Fire discourages grazing by large animal so the grasses can grow higher.
Answer:
D. Fire discourages grazing by large animals so grass can grow higher.
Explanation:
Fire allows trees to grow and provide shade for the grasses. ... Seeds can germinate in an area that has been cleared by a fire.
he human stomach helps break down food for digestion. Which statement BEST describes the stomach?
A.
It is part of a cell with a specific function.
B.
It is a single cell that performs a life function.
C.
It is made up of a small number of cells that perform a single function.
D.
It is composed of millions of cells of several types working together to perform a function.
Which of the following statements about plankton or nekton is NOT correct?
a. Nekton are active swimmers.
b. Phytoplankton are important primary producers.
c. All plankton are closely related to plants.
d. Plankton drift or swim weakly.
e. Zooplankton are heterotrophic plankton.
Answer:
C. All plankton are closely related to plants.
Explanation:
Plankton are organisms found in water that exist in a drifting state. They are too small or weak to swim on their own, so they let the current or tide carry them. They are usually microscopic but include larger species as well, such as some crustaceans and jellyfish.
Phytoplankton are autothrophic plankton. This means that they produce their own food. They are primary producers and closely related to plants.
Zooplankton are heterotrophic plankton, which means that they feed on other organisms. They are animals and aren't closely related to plants.
Nekton are organisms found in water that swim actively.
Based on this information, we can conclude that statement C is the only incorrect statement.
Given sin 0 = 4/5
use the Pythagorean Theorem to find the value of cos 0.
A) cos 0 = 3/4
B) cos 0 = 3/5
C) cos 0 = 4/3
D) cos 0 = 4/5
Answer:
cosθ = 3/5
Explanation:
Given that,
sinθ = 4/5
We need to find the value of cosθ.
We know that,
sinθ = P/H
Where
P is perpendicular and H is Hypotenuse
Using Pythagoras theorem to find base (b).
H²=P²+B², b is base
We have, H = 5, P = 4, B=?
b²=5²-4²
b=3
We know that, cosθ = B/H
Putting all the values,
cosθ = 3/5
Hence, the correct option is (b) "cosθ = 3/5".
Identify the organelle *
1 point
Outer membrane
Inner membrane
Crista
Matrix
DNA
ma
O Ribosome
O Mitochondria
Ο Ο Ο Ο
Nucleus
O Chloroplast
Explanation:
Mitochondria
hope it helps u
How does using microbes and other bio-life forms help to remove contaminants from soil and groundwater?
A) It changes the chemical structure in reused contaminants.
B) It offers considerable promise for cleaning up contamination.
C) So far, it is the only risk-free method of removing contaminants.
D) It doesn't work at all.
Answer:
B.) It offers considerable promise for cleaning up contamination.
Explanation:
got it right on edge 2021 :)
Answer:
B) It offers considerable promise for cleaning up contamination.
Explanation:
edge :D
What determines if a particle can cross a cell membrane? *
Answer:
Lipophilic (non-polar molecules), such as steroid hormones or O2 gas can pass... very small uncharged polar molecules (such as H2O, ethanol and urea) can also get through... otherwise you need a membrane protein to "facilitate" the transport of the molecule across the membrane, ion channels are used for water, or charged molecules; carriers/transporters are used for other molecules.
what is animal?why they are animal?
Answer:
The word "animal" comes from the Latin animalis, meaning having breath, having soul or living being. The biological definition includes all members of the kingdom Animalia. In colloquial usage, as a consequence of anthropocentrism, the term animal is sometimes used nonscientifically to refer only to non-human animals.
:-))
Answer:
animals are the most advanced organisms onthe planet. They are animals because they cannot work like us humans and are not having big brains like us.
A rainbow after a rainstorm is an example of what? What is the point of confusion?
Answer:
C
Explanation:
Answer:
This scrambling is what we call refraction. After scrambling interior the rain bead, the light bounces once until it at long last exits the bead and a rainbow is made.
Will mark brainliest ! Please help ASAP
Answer:
a = Liver
b = spleen
c = galbladder (i think)
d = intestines
Explanation:
IT'S AN EMERGENCY PLEASE HELP ME!!!!!!!!!!!!!!!!!!!!!!!! PLEASE I NEED HELP ASAP PLEASE HELP!!!
This is the question
How do animal cells survive without chloroplasts? Explain
(This is 7th grade science)
The mineral graphite is used in pencils. What is the characteristic that allows it to be used for this purpose? *
1 black streak
2 hardness of 1-2
3 both are correct
What is the probability that individual C-1 is Ww?
Answer:
100% or 1/1 or 1
Explanation:
all the same thing, i just took the AP bio chapter 14 test lol :)
Chikungunya is caused by ____________.
Answer:
Mosquitoes
Explanation:
Chikungunya is a viral disease transmitted to humans by infected mosquitoes. It is caused by the chikungunya virus (CHIKV). A CHIKV infection causes fever and severe joint pain. Other symptoms include muscle pain, joint swelling, headache, nausea, fatigue and rash.
Which of the following features did whales possibly inherit from a four-legged ancestor?
1. gills
2. hip bones
3. blow hole
4. dorsal fin
Answer:
2. Hip bones
Explanation:
More than 40 million years ago, whales had ancestors who walked on land. Even now, they have a feature they inherited from them - hip bones. Scientists used to think that they are vestigial, i.e. that they lost their function. However, recently they discovered that these bones help whales (and other marine mammals who have them, such as dolphins) maneuver better mating.
Whales developed the rest of the listed features later, when they became marine animals. This is why they are incorrect.
What similarities do the three revolutions share?
Answer:
Revolutions do share common features, however. One is that they are fast-moving. In a short time, often just a few years, a revolution can bring about significant change and upheaval. Most revolutions are driven by people and groups inspired by hope, idealism and dreams of a better society.
A baseball league considers changing the rules to use a ball with a much greater mass. What effect would this have on the flight of the ball?
Answer: The ball, if thrown with the same instantaneous acceleration, and same sngle of release, would have a shorter flight time and have dropped less.
Explanation: A heavier ball could be harder to throw. It might also have a larger volume. The flight of the ball would depend on the force applied and the mass of the ball and air resistance. Suppose that the same force is applied to the standard and heavy balls, which differ in density but not volume. As they are thrown over the same distance, the drop due to gravity will depend on the time taken to the batter, which will depend on the average velocity.
Provided the mass of the ball is still within the range where maximum force can be applied by the pitcher, the initial velocity will be much the same.
Momentum, however is proportional to mass. The larger mass, all else held constant, will be decelerated more slowly by air resistance, and will arrive at the batter more quickly. If the angle of delivery is the same, the heavier ball will arrive higher because flight time was less.
The ball would arrive at the batter with more kinetic energy and impact with the bat would be harder.
Why are some scientists studying the bacteria that live in the guts of termites?
O Those bacteria may contain genes that help plants take up toxins from the environment.
Those bacteria may contain genes that will help convert plant material to ethanol.
Scientists may use those bacteria as a type of fertilizer for corn and soybean fields.
Those bacteria may contain genes that make corn plants resistant to insects.
The answer is: Those bacteria may contain genes that will help convert plant material to ethanol. Hope this helps!!! :)
Some scientists are studying the bacteria that live in the guts of termites because those bacteria may contain genes that help convert plant material to ethanol.
What are termites?Termites are a type of insect that belongs to the order Isoptera. They are commonly known as white ants but they are not closely related to true ants. They are social insects and live in colonies or nests.
Termites are able to break down the cellulose in wood and other plant materials, which is a process that has potential applications in biofuel production. The bacteria that live in the termites' gut play an important role in this process by producing enzymes that help to break down the cellulose. Scientists are interested in studying these bacteria to learn more about the enzymes they produce and how they can be used to convert plant material into ethanol more efficiently.
Learn more about termites, here:
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what type of molecular movement requires energy
Answer:
When a molecule moves down its concentration gradient is it participating in passive transport; moving up the concentration gradient requires energy making it Answer:active transport
why would breeding year round favor natural selection?
Answer:
Only the strongest would survive each year and be able to breed
Explanation:
According to Darwin's theory of evolution if an animal were to be put into terrain whether local or new, the animal would need to adapt as its surrounding slowly change. If said animal is unable to adapt in time it will perish or be unable to produce strong offspring that will survive.
Pleaze help ill mark brainliest
Answer:
B
Explanation:
The percentages of A and T are equal and so are the percentages of C and G
¿In which stage of mitosis do cell spend the most time?
Answer:
Can you add the answers please and thank you but i say b
Explanation:
The prefix auto- means “self.” The root word troph comes from a Greek word that means “to feed.” How could knowledge of these word parts help you define the word autotroph?
autotroph would mean to self feed or you are are capable of feeding yourself
1. Classify each of the following substance as organic or inorganic. Explain your
choice.
a) honey
d) CO
b) saran (plastic) wrap
e) orange juice
c) obsidian (volcanic rock)
1) water
