Diffusion is important to organisms because it is the process by which useful molecules enter the body cellsand waste products are removed. Digested food molecules (amino acids, glucose) move down a concentration gradient from the intestine to the blood.

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4 years ago

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Describe the membranes around eukaryotic organelles.

iren [92.7K]

so plasma membrane

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3 years ago

which of the following best describes steps that take place during a humoral immune response? a. t cells divide into helper t ce

frozen [14]

This picture represents humoral immunity, please read through it, and if you dont understand which option is your answer then i would recommend you read more about this topic, if you want it to be done fast, you can read this http://www.s-cool.co.uk/a-level/biology/immunity/revise-it/the-third-line-of-defence
I hope you can come up with the answer on your own as it will be a good thing for you in your future exams :)
Surely i can help you if you dont understand something so just ask :D

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3 years ago