Which of the following cell types is responsible for the humoral immune response?
A) B cells
B) neutrophils
C) natural killer cells
D) macrophages
Answer: A
Biology & Microbiology
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Explain the difference between homosporous and heterosporous plants
What will be an ideal response?
Biology & Microbiology
Environmental cues that influence the timing of reproduction generally do so by _____
A) increasing the body temperature B) providing access to water for external fertilization C) increasing ambient temperature most favorable for sex D) direct effects on hormonal control mechanisms
Biology & Microbiology
______ stimulates the interstitial cells of the testes to secrete __
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
Organisms that require organic sources of carbon and energy are called (chemoheterotrophs/chemoautotrophs/autotrophs)
What will be an ideal response?
Biology & Microbiology