What distinguishes a mitochondrion from a hydrogenosome?
a. absence / presence of hydrogen (respectively)
b. generation of ATP through respiration / fermentation (respectively)
c. sensitivity level to oxygen
d. all of the above
Answer: B
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All Prochlorococcus strains contain
A) chlorophylls a and b. B) chlorophyll a and phycobilins. C) chlorophyll b and phycobilins. D) chlorophylls a and b and phycobilins.
Choose a situation in which hormonal control is important in maintaining homeostasis and describe how hormones function in this situation
What will be an ideal response?
Layer of dense connective tissue, surrounding cartilage like a girdle. Helps cartilage to resist outward expansion. Contains blood vessels for nutrient delivery to cartilage.
What will be an ideal response?
While on a hike, you notice that several burrs have become attached to your socks. You quickly pull them off. Inside the burr are several seeds. Burrs are produced by certain plants and frequently catch on animal fur (or people's clothing)
After thinking about it, you decide that the burr is a type of ________ that is an adaptation for ________. A) leaf...protecting plants from herbivores B) fruit...seed dispersal C) cambium...seed protection D) pollen grain...successful pollination