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IRISSAK [1]
3 years ago
7

If modern organisms have a lot of homologous structures, what inference

Biology
1 answer:
Alexeev081 [22]3 years ago
7 0

Answer:

The organisms have a common ancestor  

Explanation:

Homologues structyres conclude that organisms of different species share structures, making them all have some sort of common ancestor

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Harlamova29_29 [7]
No all rock dont have to go through a complete life cycle......i mean some could it but  it dont have to be in any exact order ..... so your answer would be false
6 0
3 years ago
Look at the speedometer at the top. What do you notice about the speed when the skater goes from a height of 6m down to 0m and b
iren [92.7K]

Answer:

First increases then decreases.

Explanation:

The speed of skater tends to increases when it moves from high elevation of 6 m to the low height area due to sloppy region while on the other hand, when the skater moves again from 0 m or from the ground level to 6 m height its speed decreases when reaches to the highest point. First the speed of the skater increases due to moving in the direction of gravity while on other hand, the speed of the skater decreases due to movement of skater against the gravity of earth.

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3 years ago
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jek_recluse [69]
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8 0
3 years ago
The crispr system involves the cas9 enzyme, which identifies specific nucleotides to be cut using a(n) ________ molecule as a gu
bonufazy [111]

Answer:

RNA

Explanation:

CRISPR system was discovered by a Japanese scientist. Naturally <u>bacteria and many other prokaryotes</u> have <u>CRISPR system in their genome</u> which they use as a<u> self defense against a pathogen</u> which is invading them. It consists of<u> inter spaced, short palindromic nucleotide repeats </u>which <u>encode a guide RNA (gRNA)</u>. This guide RNA (gRNA) recognizes the<u> target sequence</u> on the pathogen. The <u>gRNA is followed by Cas9 enzyme</u> which along with the gRNA plays a very important <u>role in breaking genome</u> of the pathogen. Once the target gene is cut down the rest of the DNA can be rejoined by<u> non homologous end joining. </u>

But nowadays, scientists are using this system for <u>genome editing</u> and <u>incorporating desired gene</u> between the two ends which are cut down by <u>CRISPR Cas9 system.</u>

7 0
4 years ago
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Which features do sound waves have that ocean and light waves do not? Check all that apply.
Shkiper50 [21]
<h3><u>Answer;</u></h3>

Compressions

Rarefactions

<h3><u>Explanations;</u></h3>
  • A wave is a transmission of a disturbance from one point to another, and involve the transfer of energy from the source to another point.
  • Waves may be classified as longitudinal waves or transverse wave depending on the vibration of particles relative to the wave motion or mechanical and electromagnetic waves based on the material medium of transmission.
  • <em><u>Sound waves are examples of longitudinal waves that are mechanical waves since they require material medium for transmission. Longitudinal waves involves transmission of waves such that the vibration of particles is parallel to the wave motion , creating compressions and rarefactions.</u></em>
7 0
3 years ago
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