Two types of mechanisms that help transport small molecules in animal cells are ___ and _____.
Fill in the blank(s) with the appropriate word(s).
Answer: simple and facilitated diffusion
Biology & Microbiology
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Activity of the cerebral hemispheres is coordinated by signals that flow both ways across the ________
a. cerebellum b. midbrain c. optic nerve d. corpus callosum
Biology & Microbiology
Which of the following is a molecule that stimulates a response in the immune system?
a. MHC class II molecules b. Immunoglobins c. Antigens d. Interferons
Biology & Microbiology
Explain why mutualism is sometimes viewed as ‘reciprocal exploitation’. What will be an ideal response?
Biology & Microbiology
The primary function of lymph nodes in the circulatory system is in _________
a. regulation of blood pressure b. production of red blood cells c. production of platelets d. immunity e. gas exchange
Biology & Microbiology