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Karolina [17]
3 years ago
11

What was the 1st life on Earth called

Biology
1 answer:
luda_lava [24]3 years ago
7 0

Answer:

Your answer is B) stromatolite.

Explanation:

The first forms of life on Earth were microbes.

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Describe how facilitated diffusion helps large molecules cross cell membranes. What kinds of proteins are involved?
Dima020 [189]

Yeah yeah so :D,

Large polar molecules can only cross the membrane with the help of protein named channel protein and carrier protein.

So, this both proteins act like a gate, the large molecules enter the protein and the protein let the large molecules in to the membrane. (see the picture so that you can understand more, its carrier protein)

the only difference between channel protein and carrier protein is, channel proteins has fixed shape while carrier protein can flip.

3 0
2 years ago
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The energy pyramid shown above represents a valley ecosystem. Which transfer of energy shown below is most likely?
nadya68 [22]
A transfer of energy in practice means that one organism eats the other organism, so here we have to ask whether the first organism is eaten by the second.

A. from rabbits to green plants

Plants don't eat rabbits so -no!

B. from weasels to eagles
-this is the correct answer! Eagles do prey on weasels and eat them whenever they can

C. from eagles to rabbits
Rabbits don't  eat eagles -so, no!

D. from green plants to weasels

Weasels are predators so they don't eat plants!

7 0
3 years ago
What would you conclude if the color of the solution in the control changed?
Fantom [35]
I can conclude that if the color of the solution in the control changed, the control enabled me to have a perspective in which there is no change ought to have happened. On the off chance that the control arrangement changed its color, I would conclude that there were life forms in the water.

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5 0
3 years ago
Pls help need this for a class
gayaneshka [121]

I don't have the story please put it in the comments so I can read it :)

7 0
3 years ago
Which statements are accurate about earthquakes that occur during the formation of a chain of islands and seamounts by a hotspot
Westkost [7]

Answer:

The following are accurate about earthquakes which occur during the formation of a chain of Islands and seamounts by hotspots:

- Earthquakes occur along fault lines within volcanoes formed by the hotspot.

- Earthquakes occur along fault lines during plate movements.

- Earthquakes occur when Earth’s crust bends under the weight of islands formed by the hotspot.

Explanation:

8 0
3 years ago
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