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Tpy6a [65]
2 years ago
5

Question 1 of 25

Biology
1 answer:
Irina-Kira [14]2 years ago
5 0

Answer:

B. Carbon

Explanation:

in your body, including proteins, DNA, RNA, sugars, and fats. These complex biological molecules are often called macromolecules; they're also classified as organic molecules, which simply means that they contain carbon.

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What is the mechanism of synaptic transmission?
LenKa [72]

Answer:

Synaptic transmission consists of three steps: (1) intracellular vesicles loaded with neurotransmitters are targeted to the presynaptic membrane; (2) an action potential triggers exocytosis to release the neurotransmitters to the synaptic cleft between two neurons

hope this helps !!!!

5 0
3 years ago
Which substance has a high albedo?
Inessa [10]

Answer:

Which substance has a high albedo? B) White Sand

Explanation:

The albedo is the amount of energy that is reflected by a surface. It is determined by the refletivity of that surface. Albedo can range from 0 (no reflection) to a value of 1 (100% reflection). Generally, dark surfaces have a low albedo and light surfaces have a high albedo. Liquid water is considered to have a low albedo, like dark rock and rich soil.

4 0
3 years ago
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Is a chemical substance that organisms require to live.
Ganezh [65]

Answer:

Nutrient

Explanation:

5 0
3 years ago
Which plays both a role in physical and chemical digestion?
kotykmax [81]

Answer:

Carbohydrate digestion starts in the mouth and protein digestion starts in the stomach.The digestive system fuels the cells and the excretory system rids the body of the cells' waste.

Explanation:

6 0
3 years ago
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#1. Another name for unicellular organisms that dominated Earth up to the Precambrian time is A. eukaryotes. B. cyanobacteria. C
dexar [7]
The correct answer for question number 1 is A - eukaryotes are the name for unicellular organisms that dominated earth up to the Precambrian times.

The correct answer for question number 2 is C - the greenhouse effect is related to the phenomenon of an increase in average surface temperature known as global warming.

The correct answer for question number 3 is D - the colourless and odourless gas that is produced by the radioactive decay of Uranium-238 and is considered to be a cancer-causing agent is Radon.

The correct answer for question number 4 is B - Scientists can determine if oxygen existed in Earth's Archean atmosphere by looking for oxidized iron in rocks.
4 0
3 years ago
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