The process whereby toxins are actively taken up by an organism is called:
a. additive affect.
b. bioaccumulation.
c. trophic dynamics.
d. predator-prey relationships.
e. adsorption onto seston.
B
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Polyploidy in plants
A. is very common. B. allows for adaptation to diverse environments. C. may alter the levels of gene expression. D. allows humans to create plants with unusual flowers. E. All of these statements are true regarding polyploidy in plants.
Human zygotes contain a total of chromosomes.
A. 46 B. 12 C. 32 D. 52 E. 23
The light-dependent reactions of photosynthesis take place in the ______, while the light-independent reactions occur in the ____ of the chloroplast
1.Thylakoid membranes, stroma
2.Stroma, thylakoid membrane
3.Outer membrane, stroma
4.ribosome, outer membrane
Small trees are often the same age as large individuals in the canopy
Indicate whether the statement is true or false