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vichka [17]
2 years ago
12

What would the most accurate model for the theory of evolution look like?

Biology
1 answer:
Vesna [10]2 years ago
4 0

Answer:

Comparing DNA

Explanation:

Darwin could compare only the anatomy and embryos of living things. Today, scientists can compare their DNA. Similar DNA sequences are the strongest evidence for evolution from a common ancestor.

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What cell is shown in the diagram
Montano1993 [528]

Answer:

I believe the cell is a plant cell

Hope this helped :)

8 0
3 years ago
Desacribe an experiment to prove that carbon dioxide is essential for photosynthesis ?
disa [49]
Take two healthy potted plants. Keep them in a dark room for 2-3 days. Now place each plant in a separate glass. Get a cup containing potassium hydroxide by the side of the plants (the potassium hydroxide is used to absorb carbon dioxide). COver both plants with separate jars. Seal the jars so that the set-up-is-air-tight. Keep the plants in sunlight for two hours. Gently pluck a leaf from each plant. remove the chlorophyll from the leaves by boiling them in alcohol. Wash the leaves with water and then pour iodine solution over them.

We can conclude that the photosynthesis cannot be carried out without carbon dioxide. the leaf from the plant (which was the jar containing potassium hydroxide, which absorbed the carbon dioxide) turns blue black on iodine solution showing that starch is presented in this lead.

so this shows that carbon dioxide is necessary for the processs of photosynthesis to take place
4 0
3 years ago
What happens during the G1 phase of the cell cycle?
evablogger [386]

The cell grows to its mature size

8 0
3 years ago
If Meselson and Stahl had used CsCl gradient analysis and identified DNA molecules with two distinct densities after the first g
AnnyKZ [126]

Answer:

conservative replication model

Explanation:

In their experiment, Meselson and Stahl found that the DNA duplexes present after the first round of replication had intermediate density. This occurred since the semiconservative process of DNA replication of one DNA molecule (having both strands with 15N) forms two DNA duplexes each with one parental strand (15N) and one newly formed strand (14N).

If they had found two duplexes of two different density, this would have supported the conservative replication model. In this case, the DNA replication of the parent DNA molecule would have formed two DNA duplexes. One DNA molecule would have both the parental DNA strands with 15N while the other DNA duplex would have both newly formed strands with 14N.

5 0
3 years ago
What type of plant is this?
Liula [17]

I believe that is a rubber plant

Hope this helps!

6 0
2 years ago
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