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rodikova [14]
3 years ago
8

On a phylogenetic tree, what do the branch lengths represent?

Biology
1 answer:
elena-s [515]3 years ago
7 0

Answer:

the evolutionary time between two nodes

Explanation:

Branch lengths indicate genetic change i.e. the longer the branch, the more genetic change (or divergence) has occurred

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How can humans be genetically modified
antiseptic1488 [7]

Answer:

It looks like there are two main ways to modify humans :)

Explanation:

1. <em>Somatic genetic modification</em> would be the direct way to genetically modify through adding or cutting some of the cells of an existing person usually to alleviate a medical condition (but the results are not hereditary)

<em>2</em><em>.</em><em> </em><em>Germline</em><em> </em><em>genetic</em><em> </em><em>mod</em><em>ification</em> is also a direct way to genetically modify but instead using molecular engineering techniques (this would be hereditary)

5 0
3 years ago
THE LION KING
katrin [286]

Answer:

During the final scene, lightning strikes the Pride Land igniting a fire that burns out the existing dead brush and trees. This fire is symbolic of the end of an era of an unstable ecosystem. As time passes, pride rock is transformed back into a healthy climax community.

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3 years ago
Cytochalasins bind actin and block actin microfilament assembly. Cells treated with cytochalasins will not divide. How do cytoch
7nadin3 [17]

Answer:

The correct answer will be option-A

Explanation:

Cytochalasin is the metabolic product released from the fungus. The cytochalasin acts a toxin to the cell as it inhibits the division of the cell.

Cytochalasin act by inhibiting the cytoplasmic separation during cell division as it blocks the formation of contractile microfilaments. The presence of cytochalasin inhibits the elongation of acing filament as it blocks the addition of the monomer to the growing end of the filament.

Since it prevents the formation of the contractile rings and cytoplasmic separation, therefore, option-A is the correct answer.

4 0
3 years ago
Which of the following is considered a sustainable use of a common?
Veronika [31]
D- Park Clean-ups is the correct answer to this question.
3 0
3 years ago
A person jogging from the forest to the office covers the 6,800
Murljashka [212]
  • Total displacement=6800m
  • Time=2h=7200s

\\ \sf\longmapsto Avg\: Velocity=\dfrac{Total\: displacement}{Total\:time}

\\ \sf\longmapsto Avg\: Velocity=\dfrac{6800}{7200}

\\ \sf\longmapsto Avg\: Velocity=0.9420m/s

4 0
3 years ago
Read 2 more answers
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