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Murrr4er [49]
2 years ago
8

How are stromatolite fossils evidence of earths early life?

Biology
1 answer:
solmaris [256]2 years ago
4 0

Answer:

Early cyanobacteria in stromatolites are thought to be responsible for increasing the amount of oxygen in the primeval Earth's atmosphere through their continuing photosynthesis. They were the first known organisms to photosynthesize and produce free oxygen.

Hope this helps!!!

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Identify the phase of mitosis when two new nuclei form and the cell starts to pinch in the middle.
Bezzdna [24]

Answer: Telophase

Explanation:

It starts to separate in anaphase but pinches at telophase sinc it’s the last phase before seperation

4 0
3 years ago
Why does the body slow down during extreme heat that cause me it to work harder to maintain normal body conditions
mixas84 [53]

Answer:

c.evaporation

Explanation:

mark me as brainly answer

7 0
3 years ago
What is happening to boidiversity
Elis [28]

Biodiversity is rapidly declining across the globe.

Explanation:

The biodiversity across the globe has been under heavy blow, especially in the past few hundred years. The main reason for this are the humans. The humans with their activities have managed to destroy the habitats in lot of places, which in turn resulted in sharp decline in biodiversity. Also, some species have been systemically killed off, some because they have been considered as pests, some because they were used as a food source.

  • Naturally, the biodiversity tends to be at a sustainable level, while some species die out, other replace them.
  • In the more recent history though, there is a mass extinction occurring because of the humans activities, not because of natural causes.
  • With the growing human population the trend of destroying the environment continues and it will continue further in the future, with the biodiversity constantly going down and lot of species ending up being endangered or extinct.

Learn more about extinction https://brainly.ph/question/1300646 #learnwithBrainly

3 0
3 years ago
Which of the following statements about osmosis is correct?
Pavlova-9 [17]

Answer:

D. The presence of aquaporins (proteins that form water channels in the membrane) should speed up the process of osmosis.

Explanation:

Water moves in the cells through osmosis which means water moves from its higher concentration to lower concentration. In many animals and plants, water channels are also present which is called aquaporins which allow the water to move through it in and out of cell more quickly.

The rate of diffusion by channel proteins is higher than simple diffusion therefore the aquaporins speed up the process of osmosis. No ATP is required to transport the water through aquaporin channel proteins.

5 0
3 years ago
What structures to eukaryote cells have that prokaryotes do not?
Sergio [31]

Answer:

The primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not. The nucleus is where eukaryotes store their genetic information.

Explanation:

prokaryotes have no nucleus

8 0
2 years ago
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