Which pair of statements best describes an essential amino acid?
OItis an amino acid that contains peptide bonds. An example is proline.
O Itis an amino acid that contains nitrogen. An example is aspartic acid.
• Itis an amino acid that cannot be made by the body. It must be obtained from eating certain foods.
O It is an amino acid that can be produgna by the body. Vitamin supplements maintain healthy levels.

Answers

Answer 1

Answer:

Hi there, your answer to this is: It is an amino acid that cannot be made by the body. It must be obtained from eating certain foods.

Explanation:

There are 9 essential amino acids that we need in our bodies which are:  histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine which can be found in foods that we normally eat.

Hope this helped :)

Answer 2

Answer:

C, It is an amino acid that cannot be made by the body. It must be obtained from eating certain foods.

Explanation:

Edge 2021


Related Questions

Many plants can reproduce both sexually and asexually. For example, rose bushes reproduce asexually when cuttings planted in the ground grow roots and become a new rose bush. They can also reproduce sexually when their flowers are pollinated. What is the primary advantage of sexual reproduction in roses?

Choose the correct answer.

(1 point)
A.
Roses can produce more offspring in sexual reproduction.
B.
Roses reproduce more quickly when reproducing sexually.
C.
Roses produced through sexual reproduction have more genetic variation.

Answers

Answer:

C. or A. but I think u should try C. first sorry if I'm wrong

plants reproduction can also reproduce sexually when their flowers are pollinated. They can also reproduce sexually when their flowers are pollinated. Roses produced through sexual reproduction have more genetic variation.

what is reproduction in plants ?

Reproduction in Flowering Plants occur both asexually and sexually, flowering plants or angiosperms, use the sexual mode of reproduction.

Reproduction in Flowering Plants occurs in the flower as  both male and the female gametes are present in it, various parts of flower involve in the process of reproduction.

There are four important steps in the reproduction of flowering plants. such as Pollination, Gametogenesis, Fertilization

The flower is a specialized structure where reproductive part of the plant, containing the male and female reproductive organs which facilitate fertilization.

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What kind of waves are present during an earthquake? ...
What kind of energy does an unlit match have? ...
Which of these is another way to write Newton's second law of motion? ...
What is it called when light changes direction after leaving a lens? ...
How do you calculate density?What kind of waves are present during an earthquake?

Answers

Answer:

1.The two main types of waves are body waves and surface waves. Body waves can travel through the earth's inner layers, but surface waves can only move along the surface of the planet like ripples on water. Earthquakes radiate seismic energy as both body and surface waves.

2. As the combustible materials burn, some of the chemical energy is transformed into heat energy, and some is transformed into light energy. Light energy, also known as radiation or electromagnetic energy, is a type of kinetic energy that takes the form of visible light waves, such as the light from a match

3. Newton's second law of motion is F = ma, or force is equal to mass times acceleration.

4. Answer: Refraction is the bending of light (it also happens with sound, water, and other waves) as it passes from one transparent substance into another. This bending by refraction makes it possible for us to have lenses, magnifying glasses, prisms, and rainbows. Explanation: Refraction.

5. The Density Calculator uses the formula p=m/V, or density (p) is equal to mass (m) divided by volume (V). The calculator can use any two of the values to calculate the third. Density is defined as mass per unit volume.

Would a greater or less amount of exposed surface area absorb thermal energy faster? Why? Give an example.

Answers

Answer:

Explanation:

A greater amount of surface area exposed will absorb thermal energy faster compared to a surface with a lesser exposed area.

Thermal energy is a form of kinetic energy in which the molecules of a medium increases their velocity.

In a large area with high surface are exposed, the molecules are spread out openly without obstructing each other. This will enable a faster thermal conduction through a system. A small exposed surface area inhibits thermal conduction. Solar panels are designed to expose more surface area to abstract more thermal energy.

2. This body system sends out scouts to recognize pathogens such as
bacteria and viruses. Once identified, it produces antibodies to attack
and kill the pathogen. What body system is being described?
A-Immune
B-cardiovascular
C-muscular
D-digestive

Answers

The immune system helps to defend against bacteria and viruses.

The Villi list of adaptation

Answers

Answer:

Following are the salient adaptations of villi that make them good absorbers:

Villi are single cell thick. ...

Villi have rich network of blood capillaries . ...

Most important is: Apical membranes of Villi further form many finger-like projections called microvilli or brush borders. ...

Villi have permeable membranes .

True or False:
In a normal fault, the block of rock that lies above is called the footwall and the one below is
called the hanging wall

Answers

Answer:

false

Explanation:

how does the sodium atom bond to the chlorine atom ?

Answers

Explanation:

It is happening when a sodium atom loses an electron to a chlorine atom and because of that sodium atom is becoming a positive sodium ion and the sodium ions and chloride ions form an ionic lattice.

Sodium - Na

Chloride - Ch

Sodium and Chloride are both elements that cannot be found separately and free in nature but they are found as bonded together.

The days are longer or shorter because the earth’s axis in blank





PLEASE HELP ME

Answers

Answer: Orbit

Explanation: The Earth’s axis being in orbit means that the Earth is in different positions around the sun at different points in time, causing day and night.

when you combine two or more substances and something new is created that is an example of
A) MATTER
B) PHYSICAL PROPERTIES
C) CHEMICAL CHANGE
D) PHYSICAL CHANGE ​

Answers

This is C)chemical change

For example combustion where an organic compound is turned into CO2 and water.

It’s c because when u combined to substances it’s basically a chemical like putting water and oil together basically

Which genre uses narrative techniques to recount personal experience and development?

Answers

Answer:

A memoir.

Explanation:

A memoir is a biography written by someone that includes their personal experiences and knowledge. It's also kind of like a narrative.

Hope this helps! Have a nice day!

The study of how traits are passed from parent to offspring.
A.
Inheritance
B.
Gene Expression
C.
Translation
D.
Genetics

Answers

Answer:

Genetics

Explanation:

Genetics is the study of how traits are passed down to generations, like from parent to offspring.

Gregor Mendel is known as the father of genetics and was one of the first to study how traits were passed down across generations.

So, D is the correct answer.

Which substance increases its volume when it becomes a solid?
A. Mercury
B. Water
C. Salt​

Answers

Answer:

B

Explanation:

when water is frozen, it expands, something to do with anomolous expansion of water.

Water increases its volume when it becomes a solid.

Define volume and its units?

Volume is a measure of occupied three-dimensional space. It is often quantified numerically using SI derived units or by various imperial or US customary units. The definition of length is interrelated with volume.

The surface-area-to-volume ratio, also called the surface-to-volume ratio and variously denoted sa/vol or SA:V, is the amount of surface area per unit volume of an object or collection of objects.

If volume is the amount of 3-D space contained by a closed surface (e.g. the amount of space within a given cube, or cylinder, or any other 3-D shape), liquid volume is a way to measure an amount of liquid by describing it how much 3-D space it occupies.

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What makes sperm and testosterone

Answers

Answer:

your brain makes special hormones called GnRH, and these hormones signals the testes to make more testosterone.

Explanation:

i hoped this helped:)

Which part of plant cell helps the cell during cell division of plant cell ?​

Answers

Answer:

nucleus

Explanation:

Nucleus helps in cell division.

what makes the two kinds of maritime air masses similar?

Answers

air masses uniform temperature and moisture content in horizontal direction. the properties of air masses are determined by the underlying surface properties where they originate

PLZ HELP WILL GIVE BRAINLIE AND STARS AND I WILL BE YOUR FRIEND

Answers

passive: doesn't require energy, from high to low concentration

active:requires energy, from low to high concentration

i dont know maybe

which greenhouse gas is found in the highest concentration in the atomsphere

Answers

Answer:

watter vaper i beleave

Explanation:

How would the levels of organization in the body work to get the marching band member back to being uninjured? Does homeostasis in and between cells help to return organ systems and the organisms as a whole back to homeostasis?

Answers

Answer:

Repairing ability and homeostasis causes the injured parts to return back to uninjured.

Explanation:

Due to repairing ability of levels of organization in the body helped the injured parts to return back uninjured. Yes, homeostasis that is present in and between cells help to return organ systems back to homeostasis or equilibrium state of the body. Our body has the ability to main homeostasis whenever some disturbance occur in the body. If this homeostasis not present our body, there will be no repairing of damaged occurs.

It should be noted that the repairing ability and homeostasis are vital as they cause the injured parts to return back to being uninjured.

Homeostasis simply means the process that living things use to maintain stability while they adjust to the conditions that are best for their survival.

The homeostasis that is present in and between cells is vital for returning systems back to the equilibrium state of the body. The body of an individual has the ability to maintain homeostasis whenever there is some disturbance that occurs in the body.

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a _____ is an organism that cannot produce its own food, so it must obtain its energy by eating or other organisms

Answers

Answer: Heterotrophs

Explanation: Heterotrophs, also known as other-feeders, can't capture light or chemical energy to make their own food out of carbon dioxide. Humans are heterotrophs. Instead, heterotrophs get organic molecules by eating other organisms or their byproducts. Animals, fungi, and many bacteria are heterotrophs.

Answer:

Heterotrophs

Explanation:

Heterotrophs, also known as other-feeders, can't capture light or chemical energy to make their own food out of carbon dioxide. Humans are heterotrophs. Instead, heterotrophs get organic molecules by eating other organisms or their byproducts. Animals, fungi, and many bacteria are heterotrophs.

Autotrophs such as plants do that

explain why people sleep under mosquito nets in some parts of the world​

Answers

Answer:

A mosquito net is a type of meshed curtain that is circumferentially draped over a bed or a sleeping area, to offer the sleeper barrier protection against bites and stings from mosquitos, flies, and other pest insects, and thus against the diseases they may carry

People sleep under mosquito nets from some parts of the world because so they can be protected to the mosquitoes and they have a little/a lot of mosquitoes. Also it’s possible that they can have a dengue because of a mosquito thats why they have mosquito net.

Hope this helps

What is meant by the term Reference Front?

Answers

Explanation:

The RF value is defined as the ratio of the eistance moved by the solute(i.e the day or pigment under test)and the distance moved by the solvent (known as solvent front)along the paper,where both distance are measured from the common origin or application baseline,that is the point where the sample is

hey please help plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

Answers

False is the correct answer

Answer:

true.

Explanation:

the dominant (ex. RR) crossed with recessive (ex. rr) will make for example Rr, Rr, Rr, and Rr, which are all heterozygous.

What location will enter darkness next as Earth's rotation continues ?​

Answers

Answer:

well for me I think it's

Explanation:

the B

Answer:

I believe it is C

Explanation:

Describe the process of respiration which takes place in human beings when oxygen

is not available and give an effect​

Answers

Glucose and oxygen react together in cells to produce carbon dioxide and water and releases energy. The reaction is called aerobic respiration because oxygen from the air is needed for it to work.

Which would be a normal brain wave pattern for a relaxed adult?
A. 9 cycles/second
B. 2 cycles/second
C. 5 cycles/second
D. 14 cycles/second

Answers

a is the correct answer

Explain what are ethics.
What are your feelings toward HeLa cells? (in at least 4 sentences)

Answers

Ethics are principles that govern a person’s behavior or the conducting of an activity

Answer:

HeLa cells are a great find in the science community and Henrietta Lacks' unique cells are still helping us today. They are perfect for important studies such as cancer, cell biology, genetics, and infectious diseases. Since now we have these unique immortal cells it is quite easy to start any scientific testing on human cells since their is an endless supply. Personally, I believe Henrietta Lacks will live on forever as a hero and mother of modern scientific advancements, since she quite literally, grew all of the modern cell research we have today.

Explanation:

Why does the cell complete DNA replication?

Answers

Answer:

The cell must replicated DNA because when the cell divides, the daughter cells must have identical copies of DNA. DNA replication occurs in the S phase during interphase of the cell cycle.

it has to make identical copies of DNA for the daughter cells

What causes the sinking of water in the northern Atlantic Ocean, which helps to drive the Ocean Conveyor Belt?
a.) The high salinity from the south warms and becomes less dense.
b.) The high salinity from the south cools and becomes denser.
c.) The low salinity from the south gains salt and becomes denser.
d.) The low salinity from the south loses salt and becomes less dense.

Answers

Answer:

the answer

proberbaly C or B

Answer:it's B or C

Explanation:

In cold regions, such as the North Atlantic Ocean, ocean water loses heat to the atmosphere and becomes cold and dense. When ocean water freezes, forming sea ice, salt is left behind causing surrounding seawater to become saltier and denser. Dense-cold-salty water sinks to the ocean bottom.

i want to play a game, like guess what line from the tv show or movie it came from
(omg im so bad at explaining things so if u didn’t understand anyways)

on what tv show or movie did this come from “MOM GET OFF THE PHONE”

it’s probably easy but okay.

Answers

BESTFRIEND WHAT IS THISSSSSS????

NOBODY UNDERSTANDS WHAT YOUR TRYING TO SAYYYY

From one trophic level to the next, only_(a) % of the energy is transferred. The other
(b)___% is used by the organisms getting consumed during its life processes.
A. (a) 25, (b) 75
B. (a) 10, (b) 90
C. (a) 75, (b) 25
D. (a) 90, (b) 10

Answers

Answer:

B. (a) 10, (b) 90

Explanation:

The ecosystem consists of a flow of energy that unidirectional and there is always a decrease in the amount of energy when it's transferred from one place to another. Such as in the food chain there is a transfer of 10% amount of energy which is used by the various organisms and 90% of energy is lost between the tropic levels in form of heat and respiration.
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