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Sladkaya [172]
3 years ago
8

Throwback Question: Scientists theorize that it took a billion years or more for oxygen in the atmosphere to reach the levels of

today. Based on this idea, the first cells could be classified as which of the following?
1 point
aerobic
anaerobic
eukaryotic
protista
Biology
1 answer:
polet [3.4K]3 years ago
7 0

Answer:

anaerobic i think

Explanation:

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The all-or-none response means that
Delicious77 [7]

Answer:

option B) is correct

Explanation:

The all or none response means that if a muscle contracts, it will contract completely. Thus implying the all or none law which states:

The potential of a response of a muscle fiber or nerve cell is independent of the potential of the stimulus. If a stimulus is more than a certain critical value it will trigger muscle fiber or a nerve. Most importantly resulting in either an all-or-none response thus reducing possibility of any information loss.

3 0
3 years ago
True or False. Molds form a type of hyphae called thizoids that spread across the surface of food
dsp73

Answer:

<em>T</em>rue

Explanation:

Rhizopus is a genus of common fungi that develops on plants and specialized parasites on animals, it is fairly common in all kinds of foods like mature fruits, jellies, syrups, bread, peanuts, etc. They develop hyphae called rhizoids on this food and can be visible.

4 0
3 years ago
Which of the following is a result of Earth's current radiation balance?
Neporo4naja [7]
Arthur si warm enough ti suportarla lige
3 0
3 years ago
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What force causes leaves, rain, and snow to fall to the ground?
Anton [14]

Answer:

Gravity.

Explanation:

Gravity is what causes stuff to fall. It also keeps us on the ground, If there were no gravity, life wouldn’t exist as we know it today. Brainliest please! I need brainlest in order to keep answering questions!!

7 0
3 years ago
Upon examining a sample consisting of 100 cells, you find the following distribution of cell phases. If you know that the cell c
Firdavs [7]

Answer:

the time that cell spend in prophase is 30 minutes

Explanation:

The computation is shown below:

= Number of cell ÷ sample

= 25 ÷ 100

= 1 ÷ 4

Now it takes two hours

So,

= 1 ÷ 4 × 2 hours

= 0.5

This 0.5 represent the 30 minutes

Hence, the time that cell spend in prophase is 30 minutes

6 0
3 years ago
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