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miss Akunina [59]
3 years ago
12

Which of the following best describes what experts fear is lacking for future survival?

Biology
1 answer:
notka56 [123]3 years ago
4 0

Answer:

we lack oxygen bc of pollution. a large portion of earths oxygen comes from forests, and plankton, so pollution is really starting to limit that.

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What are some possible consequences of a mutation? Give a specific example for each consequence you list.
Tju [1.3M]
Since all cells in our body contain DNA, there are lots of places for mutations to occur; however, some mutations cannot be passed on to offspring and do not matter for evolution. Somatic mutations<span> occur in non-reproductive cells and won't be passed onto offspring. For example, the golden color on half of this Red Delicious apple was caused by a somatic mutation. Its seeds will not carry the mutation.
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A single germ line mutation can have a range of effects:

<span><span>No change occurs in phenotype.
Some mutations don't have any noticeable effect on the phenotype of an organism. This can happen in many situations: perhaps the mutation occurs in a stretch of DNA with no function, or perhaps the mutation occurs in a protein-coding region, but ends up not affecting the amino acid sequence of the protein.</span><span>Small change occurs in phenotype.
A single mutation caused this cat's ears to curl backwards slightly.</span><span>Big change occurs in phenotype.
Some really important phenotypic changes, like DDT resistance in insects are sometimes caused by single mutations. A single mutation can also have strong negative effects for the organism. Mutations that cause the death of an organism are called lethals — and it doesn't get more negative than that.</span></span>
4 0
3 years ago
Which is the smallest unit of life?
zysi [14]

Answer:

D, cells.

Explanation:

7 0
3 years ago
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Brainliest for first answer. ONLY CORRECT ANSWERS!!!!!
blagie [28]

Answer:

Volume of rectangular prism = 81 feet³

Explanation:

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The sun evaporates the water from ponds, oceans...etc. There the water turns into water vapor, a gas. Then it participates from the cloud and restarts all over again.
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