If you obtained your daily vitamin A from beta-carotene, how much would you have to consume from foods to meet the RDA of 700 mcg RAE (3 points)? List at least 2 symptoms of vitamin A deficiency AND toxicity (1 point). List at least 2 major foods of vitamin A and describe at least 3 health benefits of vitamin A for the body. (2 points)

Answers

Answer 1

Foods that contain substantial amounts of vitamin A include beef liver, spinach, broccoli and liver oil.

What is vitamin A?

Vitamin A is a fundamental micronutrient that must be ingested in the diet in suitable amounts.

Leafy green vegetables (such as spinach) or orange vegetables (such as carrots) contain many vitamin A.

Vitamin A benefits include:

supports the immunityreduces ac_nesupports bones

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Related Questions

6. Which of the following fundamental units does the Système International
not use?
A. kg
B. mL
C. in.
D. cm

Answers

Answer:

The answer is B, C, D

Explanation:

They use Kg in the Système International so that is not an option of choice.

-Hope this Helps!

-Justin:)

Answer:

B, C, and D

Explanation:

The Fundamental Units are :

mass = kilogram (kg)length = metre (m)temperature = Kelvin (K)amount of substance = mole (mol)luminous intensity = candela (Cd)electric current = Ampere (A)time = second (s)

Out of the given options, only A is a fundamental unit used by the Systeme Internationale.

Hence B, C, and D are the options necessary

What trends do you see in the
organisms of the ecosystem if
you decrease CO2? *

Answers

Answer:

When carbon dioxide concentrations drop, Earth cools, some water vapor falls out of the atmosphere, and the greenhouse warming caused by water vapor drops.

Explanation:

Meristem cells in plants are most similar to which type
of animal cells?

Answers

Answer: stem cells

Explanation: They divide to give rise to one daughter cell that continues to be meristematic and another that differentiates. Meristems fall into three categories: apical, lateral, and intercalary. Apical meristems occur at the growing shoot and root tips 

Answer:

Meristematic cells are similar to stem cells in animals.

Explanation:

So it is Stem cells

Clarify the role of neuron when one suddenly touch the hot body?​

Answers

When a person meets a hot object without thinking about it, the heat stimulates temperature and danger receptors in the skin, resulting in a sensory impulse that passes to the central nervous system. After that, the sensory neuron forms synapses with interneurons, which then connect to motor neurons.

Which of the following are true about photosynthesis and cellular respiration. (Select all that apply.)

Question 3 options:

The relationship between them enables life to survive as we know it.


They both take place in human cells.


The products of one process are the reactants of the other.


They both happen only in plants.

Answers

Answer:

The relationship between them enables life to survive as we know it. The products of one process are the reactants of the other.

Explanation:

i took the test and got 100% hope this helps

The following statement is true about photosynthesis and cellular respiration: the relationship between them enables life as one knows it to survive, that is the first option.

What are photosynthesis and cellular respiration?

Photosynthesis is the process by which green plants, algae, and some bacteria convert sunlight, water, and carbon dioxide into energy-rich organic compounds, such as glucose, and release oxygen into the atmosphere as a byproduct. During photosynthesis, light energy is absorbed by pigments called chlorophyll, and cellular respiration is the process by which all living organisms, including plants, animals, and humans, convert energy-rich organic compounds, such as glucose, into energy that can be used by the cells. During cellular respiration, glucose and oxygen are broken down in the cells to release energy in the form of adenosine triphosphate (ATP), which is the energy currency of the cells.

Hence, the following statement is true about photosynthesis and cellular respiration: the relationship between them enables life to survive as one know it. That is the first option.

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b) Without insulin, what happens to the glucose transporter (GLUT 4) on the cell surface?

Answers

GLUT4 is a glucose transporter protein that is detained intracellularly without insulin in different vesicles that contain proteins such as aminopeptidase.

What is the GLUT4?

It is the skeletal muscle-specific glucose transporter, found mainly in insulin-sensitive tissues, such as muscle and adipocytes.

The lack of insulin affects the migration of Glut-4 towards the plasmatic membrane, being stopped intracellularly in different vesicles and therefore producing a decrease in the transport of glucose into the cell.

Therefore, we can conclude that GLUT4 is a glucose transporter protein that is detained intracellularly without insulin in different vesicles that contain proteins such as aminopeptidase.

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how does too much fishing in an area affect its ecosystem

Answers

It can change the size of fish remaining, as well as how they reproduce and the speed at which they mature. When too many fish are taken out of the ocean it creates an imbalance that can erode the food web and lead to a loss of other important marine life, including vulnerable species like sea turtles and corals.

A student is using a microscope to determine if a sample of pond water contains living things.
What observation does she need to record in her laboratory notebook to determine if the sample contains living things?

Answers

Answer:

at first she need to take a sample of pound and kept under zhe observation that any partices of living beings. she need to write how she took the sample and how she found sample of living things

When a cell does not have enough oxygen to support cellular respiration, which of the following processes would occur?
anaerobic respiration
photosynthesis
aerobic respiration
krebs cycle

Answers

keeps cycle is the correct answer

What phase(s) of cellular respiration could provide the organism with water?

Answers

Water is formed when hydrogen and oxygen react to form H2O during the electron transport chain, which is the final stage of cellular respiration

This is a potato plant The potatoes you eat grow underground, attached to the roots. What other function do the roots have?

A) absorb water and nutrients

B) make food by photosynthesis
reproduction and seed-production

D) collecting sunlight

Answers

A) Absorb water and nutrients

Answer:

A) absorb water and nutrients

Explanation:

usa test i took it

5) According to the visual, which three continents, as of 2004, are the largest consumers or energy per capita?
A) Europe, Australia, Asia
B) Europe, Africa, Australia
C;Asia, Europe, North America
D) North America, Europe, Australia

Answers

Answer:

the anwer is etiehr c or d

Explanation:

Answer:

D) North America, Europe, Australia

Explanation:

What is the role of a sensory receptors

Answers

Answer :A sensory receptor is a structure that reacts to a physical stimulus

Explanation: in the environment, whether internal or external. It is a sensory nerve ending that receives information and conducts a process of generating nerve impulses to be transmitted to the brain for interpretation and perception.

18. How many elements do not end with the traditional element
suffix of - "ium"?
?

Answers

There should be 36 that do not include -ium

Answer:

38

Explanation:

There are 118 elements and 80 end in ium, meaning 38 do not

Which answer has two genotypes that will produce the same phenotype? Use complete dominance to answer.

•DD and dd
•Dd and dd
•They're all different.
•DD and Dd

Answers

DD and Dd: both produce a dominant trait


Describe how the sequence of nucleotides in mRNA codes for the amino acids of a protein. How can th
insertion or deletion of even one nucleotide in mRNA cause significant changes to the protein that
result?

Answers

Answer:

330

Explanation:

HELP!! PLEASE. Fill in the missing information for the punnett square below.

Answers

Answer:

Bb Bb Bb Bb (All boxes)

Explanation:

Each are dominant

What could happen to a species if the environment changes causing it to become less well adapted to its environment?
A. The species will have less competition.
B. The species may become extinct.
C. The species is more likely to survive and reproduce.
D. There will be more variation within the species.

Answers

Answer:

C

Explanation:

What is the role of cartilage in the spinal column?

Answers

The cartilaginous discs between vertebrae absorb and distribute shock and keep the vertebrae from grinding together during movement.

how could gene therapy someday be used to treat genetic disorders

Answers

Answer:

To my knowledge, it already is being used to treat them

Explanation:

things such as lactose intolerance are already being treated like this, same with many more things.

Answer:

Gene therapy techniques allow doctors to treat a disorder by altering a person's genetic makeup instead of using drugs or surgery. The earliest method of gene therapy, often called gene transfer or gene addition, was developed to: Introduce a new gene into cells to help fight a disease.

Explanation:

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what percent of fresh water is available for human consumption ?

Answers

Answer:

Only 1%

Explanation:

97% of the earth's water is salt water so we cant drink that. The remaining 3% of the fresh water is contaminated with germs so only 1% of it is ready for consumption :)

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Mention one type of articulation (joint) and where is located.

Answers

Explanation:

PIVOT JOINT- between the atlas and axis

what directs light rays into the eye​

Answers

Answer:The cornea

Explanation:The cornea directs light rays into the eye and helps focus them on the light-sensitive retina at the back of the eye, providing sharp, clear vision.

Answer:

Lens

Explanation:

Lens refract light rays on to the retina

David is in therapy for anger issues. He is in therapy with six other people, who discuss their anger issues with each other and a therapist who is also present. David and the others in therapy give each other feedback, as does the therapist. David is MOST likely participating in _____ therapy.

group
REBT
dialectical behavior
family

Answers

Given what we know and the information being described in the question, we can confirm that David is most likely participating in group therapy.

What is group therapy?

This is exactly as it sounds, a therapy session involving more than one person at a time. The idea behind this method of therapy is that it to allow the participants to feel identified with their troubles, and take inspiration from others as to how to deal with and better their behaviors.

Therefore, we can confirm that David is most likely participating in group therapy.

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What happens when you drink to much salt water

Answers

Answer:

when you drink to much salt water you dehydrate quickly

Explanation:

Consuming very salty water, like the kind in the ocean, may introduce more salt to your body than it's capable of processing. Your body attempts to flush the excess by inducing urination, pushing your kidneys into overdrive. Because you must excrete more water than you consume to get rid of the extra salt, you may dehydrate quickly.

The question and answer choices are in the picture. THIS EXAM IS BEING TIMED SO I NEED ANSWERS, NOT LINKS, ASAP!!

Answers

Answer:

30 units of energy will be available to primary predators.

Explanation:

Using 10 % law i.e at each step 10 % of energy is transferred to the next trophic level at the rest of either consumed or lost to environment..

so plants have = 3000 units

herbivores = 10% of 3000 = 10/100 × 3000

= 300 units

so primary predators will have = 10% of 300

= 10/100 × 300 = 30 units

What is a result of overhunting plant and animal species?

A. Species can become extinct
B. Species can overpopulate
C. Species reproduce faster than they normally would
D. Humans pollute natural habitats​

Answers

I believe it’s A, hope this helps!!

Which of these is a reason why there are more photosynthetic plants in an ecosystem than mammals
that feed on them?
A. Mammals are on the same trophic level as photosynthetic plants.
B. Plants convert all of their energy into a form that is unusable to mammals.
C. Mammals provide only 10% of their energy to plants.
D. Plants require less energy per organism than the mammals that feed on them.

Answers

Answer:

D

Explanation:

Plants require less energy per organism than the mammals that feed on themHence, since less energy is required per photosynthetic plant, more of them are present in an ecosystem
D ^^ i agree with them

Explain how energy flows in a food chain.
DONE

Answers

Energy flows in a food chain from sun to plant then an animal eats that plant and another animal eats that animal and then we eat that animal and the cycle continues

Which of the following is most important to cultivating food in order to sustain human growth?

A. Domesticating animals
B. Agriculture
C. Mining species
D. Manufacturing​

Answers

B. Agriculture
hope it helps
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