The structure labeled 3 in Figure 51-2 is the:
a. archenteron.
b. endoderm.
c. mesoderm.
d. blastocoel.
e. ectoderm..
C
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Blue light has ___ energy than red light and is ____ by a green leaf.
A. more, reflected B. less, reflected C. more, absorbed D. less, absorbed
In some fruit flies, an inversion involving the white-eyed locus (w) moves the w+gene from one end of the X chromosome to a location nearer to the centromere. Flies with a w+ or w+/w genotype are normally expected to have red eyes
However, in flies with the inversion, the eyes are mottled red and white. Explain why.
What are the benefits of territoriality?
What will be an ideal response?
What is a benefit of multicellularity for slime mold amoebas?
a. self-sacrifice for other amoebas c. sexual reproduction b. ability to move quickly to nutrients d. ability to feed on bacteria