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aleksandrvk [35]
3 years ago
9

7. According to the fossil record, which group of organisms has existed for the greatest length of time? (1) gastropods (3) mamm

als
(2) corals (4) vascular plants
Biology
1 answer:
Ket [755]3 years ago
4 0

Answer:

4)vascular plants

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DNA replication occurs during which phase of the eukaryotic cell cycle?
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In eukaryotic cells the DNA can be found in the nucleus mainly. so DNA replication takes place in the nucleus during the S phase of the cell cycle.

Also in eukaryotic cells there are mitochondria and chloroplasts (plants) and these have circular DNA and they also get replicated (according to their own mechanism).

Prokaryotic cells don't contain a nucleus. They do not contain DNA in the cytoplasm and thus the DNA replication will take place here.

I really hope this helps!

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A yellow powder and a blue liquid are shaken together in a test tube to produce a clear green mixture that is all liquid.which o
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They Dissolved / became a compound  

Explanation:

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use models photosynthesis usually produces glucose (c6h12o6) as a final product. what are the sources of the carbon atoms and hy
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People can bread cats for specific traits such as coat color through process of __?
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5 0
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What are the intercellular communication types at a synapse? Select all that apply.
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Answer: Option A and D.

Soups chemical synaptic transmission.

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Intercellular communication refers to the communication and interaction that exists between two cells in the body. It could be hormonal or synaptic transmission.

Synapse is the site where electric nerve impulses are transmitted between two nerve impulses.

There are two synapse possibilities which are electrical and chemical.

The Sparks and soups mean that the scientific discovery over the transmission of nerve impulses as to whether they are electrical impulses (Sparks) or chemical impulses(soup).

Chemical synaptic transmission means there is no physical touch in the space chemical are released and move to the neighbouring cells.

Electrical transmission means neuron physically touch and give way for flow of impulses between cells.

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