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scZoUnD [109]
3 years ago
5

Unhealthy ecosystems are created by

Biology
1 answer:
Sloan [31]3 years ago
6 0

Answer:

Removal of plants, and invasive species.

Explanation:

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List three things that can bring life to a barren island
alekssr [168]

Answer:

Plantlife, grow a garden. Animal life, raise some livestock. And a water source, most definitley.

Explanation:

4 0
2 years ago
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The molecular clock has limited usefulness for estimating divergence times among species in part due to the saturation of DNA se
Greeley [361]

<u>Answer:</u>

<em>In highly diverged lineages, the substitutions process will occur at sites that have been substituted previously</em>.

<u>Explanation:</u>

Molecular clock uses the mutation rate to reduce the time in prehistory when the life forms are diverged. <em>The molecular clock uses the sequence of amino acids and nucleotide sequence for the DNA.</em>  

This clock does not measure any time but the number of mutations, and other changes over certain time.  <em>Sometimes its useful property might be limited due to the highly diverged lineages.</em>

8 0
3 years ago
Three main levels of neural integration operate in the somatosensory system. Which level involves the spinal cord?
aksik [14]
The Circuit-Level involves the spinal cord.
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3 years ago
Part 1: Why is Fresh Water in Short Supply?
shepuryov [24]

Part 1;

Because there is only limited amounts of fresh water on the Earth the rest is salt water; which humans can not survive on as the salt dehydrates our bodies instead of hydrates.

1) The more we try to get the the fresh water the more we will likely make more pollution.

2) The more we use the less there is.

3) Everything needs water.

Part 2; no idea I believe it is the ice caps, as it is fresh water in the ice caps and not a lot of humans up there to pollute the runoff.    

6 0
3 years ago
Is water polar or nonpolar​
statuscvo [17]

Answer:

Polar

Explanation:

A water molecule, because of its shape, is a polar molecule. That is, it has one side that is positively charged and one side that is negatively charged. The molecule is made up of two hydrogen atoms and one oxygen atom. The bonds between the atoms are called covalent bonds, because the atoms share electrons. The hydrogen atoms have one electron each.

6 0
3 years ago
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