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Stells [14]
3 years ago
13

Which is composed of amino acids and determines all the structures and functions of organisms?

Biology
1 answer:
Mice21 [21]3 years ago
7 0

Answer:

protein

Explanation:

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Compare transport in animals and plants cells
docker41 [41]

Answer:

Transport in both plants and mammals is by a system of specialised tubes. ... In mammals this forms a circulatory system of arteries, capillaries and veins. In flowering plants, transport is not circulatory and occurs in microscopic xylem and phloem.

Explanation:

Mammals:

ºSpecialised tubes - arteries, capillaries and veins.

ºAll tubes are composed of living cells.

ºThe concentration of substances transported is controlled (see homeostasis). The ºconcentration of the substances being transported is not controlled.

ºThe heart controls the circulatory system. The heart is controlled by the nervous system.

ºThe rate of flow is moderate and is regulated by vasoconstriction and vasodilation.

ºUses water as a medium in which to transport substances (it is a good solvent, it has a high specific heat capacity, has good surface tension but is not viscous, and is unreactive).

º The substances being transported are: respiratory gases, glucose, amino acids, fatty acids, glycerol, vitamins, minerals, hormones.

Plants:

º Specialised tubes - xylem vessels and tracheids and phloem sieve tubes.

º Some tubes are composed of living cells, e.g. phloem. Others are composed of dead cells, e.g. xylem.

º The concentration of the substances being transported is not controlled.

º There is no such control in plants.

º The rate of flow in the xylem and phloem is quite slow. The rate of flow in the xylem is controlled by external factors via the stomata (e.g. temperature, wind, humidity).

º Uses water as a medium in which to transport substances.

ºSubstances being transported are: sucrose, amino acids, fatty acids, glycerol, vitamins, hormones (in the phloem) and minerals and water (in the xylem). Respiratory gases are not transported by this system but move via a series of inter-connecting air spaces.

6 0
3 years ago
What simple machines have been used on pyramid? What advantages do they give?
harina [27]

Answer:

inclined plane and lever. advantages they got allowed them to move rocks higher as they built up and to lift heavier objects.

6 0
2 years ago
Which process requires the participation of all three types of rna?
Marat540 [252]
The appropriate response is Translation. It is the procedure in which ribosomes in the cytoplasm or ER blend proteins after the procedure interpretation of DNA to RNA in the cell's core. The whole procedure is called quality articulation. This process is called the gene expression<span>.</span>
7 0
3 years ago
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And spilled millions of liters of crude oil. The graph shows pink salmon populations in Prince
Ilia_Sergeevich [38]

The thing that the data suggest about the effect the oil spill had on pink salmon is option d. Pink salmon populations seemed to be minimally affected.

<h3>What is Pink salmon?</h3>

Pink salmon is called humpback salmon and it  is known to be a fish and it is said to be a species that belongs to the anadromous fish that is seen in the salmon family.

Note that form the image attached, The thing that the data suggest about the effect the oil spill had on pink salmon is option d. Pink salmon populations seemed to be minimally affected.

Learn more about oil spill from

brainly.com/question/12558255

#SPJ1

3 0
2 years ago
GIVING BRAINLIEST!!!!!
DanielleElmas [232]

Answer:

It helps you make decisions

Explanation:

it does

4 0
2 years ago
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