The lack of a rigid cell wall is an animal feature that allows them to be mobile in some way.
<h3>What is the cell wall?</h3>
The cell wall is a cellular structure (organelle) that provides support to plant and fungi cells.
Animals are mobile because they do not have this rigid structure that otherwise will hamper their motion.
In conclusion, animals cells do not have cell walls which helps them to be mobile.
Learn more about the cell wall here:
brainly.com/question/2622341
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-2 is your answer!
Explanation
The answer is right when i checked
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I think it’s T lymphocytes?
It says: T lymphocytes attack antigens directly and help control the immune response. They also release chemicals, which control the entire immune system....
The correct answer will be “Biological Evolution”
Unlike the younger Earth, we have a thick atmosphere full of millions of chemicals that keep the oxygen we breath in, and protects us from space junk from colliding with us. Also, the earth we know today isn't insanely hot. The younger Earth had a surface temperature that was not possible for sustaining life. But now, it's just right!
Also, we have vast salty oceans. The younger Earth had a kind of ocean, but these were made of molten metals and other rocks.
I hope this helps!! :)
