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2 years ago

BO

Biology

1 answer:

kozerog [31]2 years ago

4 0

The correct answer is C. Controlled experiments

Explanation:

A scientific claim is a statement that describes or explains a phenomenon of the world. These statements can be proven as valid or invalid only through scientific experiments, which involve testing in controlled conditions the phenomenon. This is the only way because the scientific method should be followed. For example, if the claim is that humidity affects the growth rate of cacti. The researcher will need to use multiple cacti and use different percentages of humidity to prove if humidity increases or decreases the growth rate. Also, in this case, other factors such as nutrients in the soil, exposition to sunlight, etc. should be controlled to guarantee these factors are equal for all plants. According to this, the one that serves as evidence for the scientific claim is controlled experiments.

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If they gave IVs of pure water in the emergency room to people who are dehydrated, what would happen?

Zigmanuir [339]

Answer:

The correct answer is: B. blood cells would be in a hypotonic solution, so water would rush into the cell causing it to expand and eventually burst.

Explanation:

Cells have a certain solute concentration that produces an osmotic pressure of aproximately 300 mOsm. For that reason, IVs solutions must have a solute concentration which equals the cell osmotic pressure. That is usually acomplished by using an aqueous solution of NaCl 0.9% w/v or 5% w/v Glucose.

If an IV of pure water is administrated to a person, the blood cells will be in a hypotonic solution. That is, with a concentration lesser than the concentration inside the cells. Due to the difference in concentration, a net flow of water will be produced from the exterior to the cell interior. As the volume of the cell is increased, the cell membrane is damaged and eventually the cell will collapse.

8 0

3 years ago

.....................................................

Korvikt [17]

This is not a valid question. Please ask a question to receive an answer.

6 0

3 years ago

Part A - Name and describe the chemical process producers use to make glucose and the chemical process used by both consumers an

ANTONII [103]

Answer:

The process that is used by producers to make glucose is called photosyntheis and the chemical process used by both producers ans consumers to make ATP ito contribute to the energy exchange is called cellular respiration.

Explanation:

Photosynthsis

Photosynthesis occue in the mesophyll tissue present in leaves of plants .During photosynthesis the green plants or producers acquires CO2 from the atmosphere and utilizes water in presence of sunlight to produce glucose molecules along with the liberation of oxygen gas.

Cellular respiration

During cellular respiration the glucose molecules are oxidized to form energy in form of ATP along with the production of water and carbon dioxide.

The O2 that formed during photosynthesis is inhaled by human beings for respiration whereas the CO2 that is produced as waste material inside our body is exhaled by us in the atmosphere.The CO2 is then used by the green plants to carry out photosynthesis.

3 0

2 years ago

The interior surface of a neuron's plasma membrane at resting membrane potential will have a ________.

Marta_Voda [28]

I'm not sure but if you are talking about cells I think it is cytoplasm.

4 0

3 years ago

This is an diagram of typical plant cell. The pink arrow is pointing to the _____. What is the function of this structure in a p

Bumek [7]

Answer:

It is the Cell wall.

Explanation:

Please use picture as proof.

If you are happy with my response you can mark me Brainliest!

Thank you!

For any sort of question you can reach out to me over the comments.

(Would appropriate it.)

5 0

2 years ago