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kaheart [24]
3 years ago
15

Era

Biology
2 answers:
Lilit [14]3 years ago
6 0

Answer:

520 million years ago

Explanation:

madreJ [45]3 years ago
4 0

Answer:

The Paleozoic comes after the Neoproterozoic Era of the Proterozoic Eon and is followed by the Mesozoic Era. The Paleozoic was a time of dramatic geological, climatic, and evolutionary change. ... Arthropods, molluscs, fish, amphibians, synapsids and diapsids all evolved during the Paleozoic.

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In what processes is carbon a reactant or a product in the carbon cycle?
fiasKO [112]

Carbon is a reactant in the process of photosynthesis but a product in the process of cellular respiration.

<h3>What is carbon cycle?</h3>

Carbon cycle is the physical cycle of carbon through the Earth’s biosphere, geosphere, hydrosphere and atmosphere.

It is the series of processes by which carbon compounds are interconverted in the environment, that includes such processes as

  • photosynthesis
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Carbon cycle involves the incorporation of carbon dioxide into living tissue by photosynthesis and its return to the atmosphere through respiration, the decay of dead organisms, and the burning of fossil fuels.

Therefore, carbon is present in the atmosphere as a reactant during photosynthesis and as a product during cellular respiration.

Learn more about carbon cycle at: brainly.com/question/1627609

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3 0
1 year ago
Place the steps for the formation of the enzyme pepsinogen in the correct order.
Volgvan

The steps for the formation of the enzyme pepsinogen in the correct order is as 1, 4, 2, 3.

Pepsinogen is a chemical that is created by the cells that exist in the stomach. During digestion, pepsinogen is converted into pepsin by the acid in the stomach, and pepsin is responsible for breaking down the proteins in food. The formation steps are as;

Step 1: The DNA strands unwind, and  RNA polymerase binds to the template strand.

Step 2: The synthesis of mRNA begins. The amino acids assemble to form peptide.

Step 3: The mRNA undergoes intron splicing and exits the nucleus.

Step 4: The tRNA moves through mRNA with the activated amino acids attached to it.

The complete question is attached.

You can also learn about Pepsinogen from the following question:

brainly.com/question/29462356

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5 0
1 year ago
How do both similarity and differences among amino acids allow them to form macromolecules with a wide variety of properties
ioda
The R group is what allows amino acids to form macromolecules with different properties. every amino acid has the same basic structure, the only difference is what the R group is made up of. The similarities allow the amino acids to form a chain while the differences allows them to have different functions. Hope this helped!
3 0
3 years ago
When the immune system attacks the body`s own cells, it produces an _________. disease.
diamong [38]

Answer:

autoimmune

Explanation:

4 0
3 years ago
Which describes bedrock?
3241004551 [841]

Answer:

consists of solid rock

Explanation:

bedrock contains only solid rock unless you are talking about a different type of bedrock this bed is called saprolite. saprolite contains severly weathered rock and lies above the solid layer of bedrock

6 0
3 years ago
Read 2 more answers
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