men have one __ but have 2 of the all of the rest of these
Fill in the blank(s) with the appropriate word(s).
prostate glands
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One of the reasons why the model systems of yeast, Arabidopsis, nematode worms, fruit flies, and mice are so often used to study functional analysis of genes is because
A. they all have only a few chromosomes. B. they are easy to cross with each other and observe polyploidy effects. C. they have short life cycles. D. they are easy to observe in the wild. E. they mutate easily leading to new genomic variations.
Antibody-mediated immunity is also called humoral immunity
Indicate whether the statement is true or false.
What problem is associated with using NPP to calculate the carrying capacity for humans?
A) It fails to take into account our need for other resources, such as water, clean air, and fuel. B) NPP isn't important when considering the human population. C) Humans grow their own food, which isn't a part of the NPP. D) It overestimates the effects of humans on the ecosystem.
Cephalopods are the only mollusks that have a closed circulatory system
Indicate whether the statement is true or false