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melomori [17]
3 years ago
11

Relate the development of plant needles to the occurrence of mutations.

Biology
2 answers:
Ivahew [28]3 years ago
8 0

Answer: B

Explanation:

xxMikexx [17]3 years ago
5 0
<h2>Development of Plant Needles</h2>

Explanation:

  • Seed of pitch pine treated with colchicine delivered tetraploid seedlings which had thick and sporadic needles and less fortunate tallness and diameter growth than ordinary seedlings.  
  • In test of colchicine-initiated polyploidy in pines, researcher found that a significant number of the polyploid plants returned to a diploid development in light of the fact that the polyploid cells partitioned at a more slow rate and were overwhelmed by the more quickly developing diploid cells which encompassed them.  
  • The primary needles of both diploid and polyploid plants were more effective at low light intensity than secondary needles, and they had lower compensation points.

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The theory of evolution provides a number of insights:

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-it tells us how the species and populations react to the changes in their environment

With this knowledge, the scientists can predict how the species will react to the potential changes and support the positive changes (provide a good environment for the animals for example) <span />
6 0
3 years ago
Which level of maslow's hierarchy of needs is fulfilled by the nurse fitting a client who nearly died of asphyxiation with an ox
ICE Princess25 [194]

The correct answer is: first level.

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8 0
3 years ago
What do you think really happened to the people of easter island?
BaLLatris [955]
Easter Island is a small 63-square-mile patch of land — more than a thousand miles from the next inhabited spot in the Pacific Ocean. In A.D. 1200 (or thereabouts), a small group of Polynesians — it might have been a single family — made their way there, settled in and began to farm. When they arrived, the place was covered with trees — as many as 16 million of them, some towering 100 feet high.

These settlers were farmers, practicing slash-and-burn agriculture, so they burned down woods, opened spaces, and began to multiply. Pretty soon the island had too many people, too few trees, and then, in only a few generations, no trees at all.

4 0
3 years ago
Captive-bred trout reduce the fitness of wild populations, Relative fitness Wild Captive Captive Wild Wild Captive What statemen
N76 [4]

Answer:

A) The gene flow between hatchery-reared and wild populations is leading to a decline in fitness of wild populations.

Explanation:

<u>we have relative fitness at its greatest in trouts whose parents are wild x wild. crossing the wild with hatchery reared causes a decrease in the fitness of the troutgene flow is the exchange of genes between two different breeds. the wild is a greatly diverse breed and it is highly adaptive. while the hatchery reared is less adaptive.when these two breed less fit alleles will then be transferred to the wild</u>

therefore option a answers the question

8 0
3 years ago
In which stage of the cell cycle is this cell?
Ber [7]

Answer:

its interphase edge 2020 got it right

Explanation:

5 0
3 years ago
Read 2 more answers
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