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Rus_ich [418]
3 years ago
14

When did prokaryote evolve

Biology
1 answer:
Semenov [28]3 years ago
5 0
Origin of Prokaryotic and Eukaryotas. Fossil records indicate that Eukaryotas evolved from prokaryotic somewhere between 1.5 to 2 billion years ago<span>. Two proposed pathways describe the invasion of prokaryotic cells by two smaller prokaryotic cells.</span>
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The energy pyramid below illustrates some feeding relationships in alpine meadows of Yellowstone National Park. Which statement
Anettt [7]

Answer:

The answer is - Biomass decreases as energy is transferred from one level to another.

Explanation:

The options are;

A. Chipmunks and insects can occupy the same niche.

B. As the number of bears in this community increases, the number of chipmunks will increase.

C. Insects are classified as omnivores in alpine meadow communities.

D. Biomass decreases as energy is transferred from one level to another

The answer is D. Biomass decreases as energy is transferred from one level to another

The energy pyramid being referred to is in the attachment below.

Biomass is an organic renewable source of energy derived from plants and animals. As animals at the lower trophic levels are consumed by animals at the higher trophic levels there is transfer of energy, however it is not all the energy that are transferred equally. As a result, at each trophic level there is decreased energy and biomass that is transferred from one level to the other.

3 0
3 years ago
What is the full form of UV rays?​
Irina-Kira [14]

Answer:

UV radiation: Ultraviolet radiation. Invisible rays that are part of the energy that comes from the sun, can burn the skin, and cause skin cancer. UV radiation is made up of three types of rays -- ultraviolet A (UVA), ultraviolet B (UVB), and ultraviolet C (UVC).

Explanation:

6 0
2 years ago
Read 2 more answers
The definition of a text includes:
Rashid [163]
B. Only words ,letters,and fonts
6 0
3 years ago
If you are studying a gene within DNA and find out that guanine makes up 41% of it, how much is Adenine?
marin [14]
A - 9%
T - 9%
C - 41%
G - 41%

Total is equal to 100%
6 0
3 years ago
The mitotic phase of the cell cycle is the combination of mitosis and what other process?
professor190 [17]

Answer:

the cell cycle

Explanation:

Image of the cell cycle. Interphase is composed of G1 phase (cell growth), followed by S phase (DNA synthesis), followed by G2 phase (cell growth). At the end of interphase comes the mitotic phase, which is made up of mitosis and cytokinesis and leads to the formation of two daughter cells.

5 0
2 years ago
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