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saveliy_v [14]
3 years ago
12

During which period did the first land vertebrates appear?

Biology
1 answer:
julsineya [31]3 years ago
6 0
The answer is D. permian
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The bacteria cell cycle does not have an analogous phase to the eukaryotic phase G2. The reason for this is that _____.
eimsori [14]

Answer:

At the same time, chromosome replication and partitioning take place.

Explanation:

The bacterium cell cycle does not have an equivalent phase to the eukaryotic cell's phase G2 since it completes two phases in one.

3 0
2 years ago
Which of the following terms denotes the chromosomes which are similar in size, shape, and genetic material?
lana [24]

Answer: Each pair of chromosomes consists of two chromosomes that are similar in size and shape. They contain the same genes at the same loci, though they may have different alleles. These pairs of chromosomes are known as homologous chromosomes or homologs.

Explanation:

3 0
3 years ago
An unidentified species of animal displays the following characteristics: bilateral symmetry, a complete digestive system, an op
meriva

Answer: It is mostly likely B

Explanation: The phylum Arthropoda consists of invertebrate animals with exoskeletons, a segmented bodies, and paired jointed appendages. It is also more advanced than the organisms belonging to A,C, and D. However, I do not think it's E because that mostly includes sea dwelling creatures and this includes evidence of its habitat.

3 0
3 years ago
Without being in the presence of
victus00 [196]

A producer cannot make sugars in the absence of light, the correct option is A.

<h3>What are producers?</h3>

Producers, also known as autotrophs, are lifeforms that produce their own food.

They obtain energy from chemicals or the sun and transform it into usable energy in the form of sugar or food using water.

Plants and algae can produce their own food by harnessing solar energy. These organisms are referred to as producers because they generate their own food.

Thus, the correct option is A.

For more details regarding producers, visit:

brainly.com/question/4975822

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8 0
2 years ago
How do vaccines work if the pathogen in them is dead?
Alekssandra [29.7K]

Answer:

vaccines use the killed version of the germ that causes a disease.

Explanation:

Inactivated vaccines usually don't provide immunity (protection) that's as strong as live vaccines. So you may need several doses over time (booster shots) in order to get ongoing immunity against diseases

3 0
3 years ago
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