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adoni [48]
4 years ago
8

Explain the term “molecular clock” and describe the types of measurements and comparisons that can be made with this type of clo

ck. 
Biology
1 answer:
Sedbober [7]4 years ago
4 0
Molecular clock is the average rate in which a species' genome accumulates mutations, used to measure their evolutionary divergence and in other calculations<span>.</span>
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How do chemoautotrophs make energy?
denis-greek [22]

Explanation:

Carbon dioxide water and energy are the typical products of the breakdown of which type of molecule

7 0
3 years ago
A sodium-potassium pump _____. moves three potassium ions out of a cell and two sodium ions into a cell while producing an atp f
SVETLANKA909090 [29]

Move three sodium ions out of a cell and two potassium ions into a cell while consuming an atp for each cycle

Explanation:

By pumping three (3) Na+ to the outside and two (2) K+ to the inside of the cell, there is a net positive charge on the outside leaving the inside of the cell electronegative. This process is achieved by the Na+/K+ pump and is a process that consumes ATP energy.

This is much more important in a neuron cell who ¾ of its energy is used to maintain  a -70mV resting potential that is important for the nerve to pass impulse when depolarised.

In other cells, the gradient created in important in maintaining the homeostatic osmolarity inside the cell to avoid swelling and lysis of cells due to uptake of excess water by osmosis. The Na+ gradient is also used to import other molecules into the cell such as glucose and amino acids. These molecules are coupled with Na+ and then are absorbed efficiently as the Na+ flow back inside the cell down the Na+ concentration gradient.

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brainly.com/question/12673972

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4 0
3 years ago
A train travels 95 kilometers in 3 hours and then 55 kilometers in 2 hours. What is it’s average speed?
liberstina [14]
The average speed is
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7 0
3 years ago
In what way are all living organisims on earth the same?
exis [7]

Answer:

WHAT DO ALL LIVING THINGS HAVE IN COMMON? All organisms need food for the energy required to live and grow. They all excrete (get rid of) waste products, and detect changes in their surroundings and respond to them. All living organisms follow a LIFE CYCLE of growth and development, reproduction, and death.

Explanation:

8 0
3 years ago
Pls help i’m between A and D I NEED THIS ASAP i’ll give branliest !!!!!!!!
Aleks04 [339]

Answer:

You're correct.

Explanation:

The answer is solar energy - chemical energy. So it's letter A.

Brainliest? Thanks!

5 0
3 years ago
Read 2 more answers
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