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LuckyWell [14K]
3 years ago
13

How does Earth's atmosphere today compare with the atmosphere of 4.6 billion years ago, and why has the atmosphere changed?

Biology
2 answers:
miss Akunina [59]3 years ago
6 0
4.6 million years ago the earth had less green house gasses so the atmosphere was cooler rather than hotter.
fomenos3 years ago
5 0
Answer: At that time, everything was greener. Everything was safer and less populated. The air was cleaner and now the air if filled with chemicals. There are lots of houses now and less animals and more humans.

I hope this helps and have a wonderful day filled with joy!!
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Describe the function of the RESPIRATORY SYSTEM and the function of the CIRCULATORY SYSTEM in your own words
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Answer: circulatory is when ur blood circulates and respiratory is the system we use to breath if I remember correctly

Explanation:

4 0
3 years ago
Most organisms can be divided into two categories - prokaryotes and eukaryotes. What is the main difference between these two ca
Klio2033 [76]

Answer:

The main difference between Prokaryotic and Eukaryotic cell is that, eukaryotes contain membrane bound organelles like nucleus where as prokaryotes do not. The genetic material is present at the center and is called nucleoid in prokaryotes.

Explanation:

Example of prokaryotes include bacteria and archea bacteria. Examples of eukaryotes include plants and animals. Prokaryotes lack organelles such as mitochondria, endoplasmic resticulum and lysosomes which are present in eukaryotes. Both the groups contain ribosomes but its 70s ribosome in prokaryotes and 80s ribosomes in eukaryotes.

6 0
2 years ago
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Explain what a mosaic is and then explain why the term fluid mosaic model is used to describe the plasma membrane
zalisa [80]
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7 0
2 years ago
Which is the word equation for photosynthesis?
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Carbon dioxide + water glucose + oxygen

8 0
3 years ago
Which cells would you be most likely to find in the dermis?
12345 [234]
Salutations!

Which cells would you be most likely to find in the dermis?

A dermis is the beneath and upper layer of a cell that makes up the skin. The cells that are found in dermis is fibroblasts and macrophanges, and sometimes white blood cells and mast cells.

Thus, your answer is option D.

Hope I helped (:

Have a great day!
8 0
3 years ago
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