Pigments that absorb light energy to drive photosynthesis include
A) chlorophyll only.
B) chlorophyll and carotenoids.
C) carotenoids and anthocyanins.
D) carotenoids only.
E) anthocyanins only.
B
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Immunization against endemic diseases is NOT necessary when traveling outside of one's home country or region
Indicate whether the statement is true or false.
A plant of genotype CCdd is crossed to a plant of genotype ccDD; the F1 offspring are then testcrossed to a ccdd
plant. If the genes are on different chromosomes, what percentage of the offspring will be ccdd?
a. 10 b. 20 c. 25 d. 30 e. 50
What is true of most deciduous trees in the temperate zone?
a. they spend all of their energy on reproduction b. growth and reproduction occur simultaneously c. they only produce one or two offspring annually d. they produce thousands of seeds for one or two years e. they only begin to breed after reaching adulthood
Mitochondria contain their own genes. Study of these genes has revealed that mitochondria can be inherited from both the mother and the father when sperm and egg cells unite.
a. true b. false