Which species might experience reproductive isolation if all bees in the area were eliminated by disease?
a. brown bats
b. coffee ferns
c. almond trees
d. dragonflies
Ans: c. almond trees
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Can you inherit physical traits that your parents acquired during their lifetime?
A) No B) Yes C) Only if it improves survivability D) Only if it improves reproductive success
The most productive region of a lake is the ____ zone
a. neritic b. limnetic c. profundal d. littoral e. oceanic
Sturtevant provided genetic evidence for the existence of four pairs of chromosomes in Drosophila in which of these ways?
A) There are four major functional classes of genes in Drosophila. B) Drosophila genes cluster into four distinct groups of linked genes. C) The overall number of genes in Drosophila is a multiple of four. D) Drosophila genes have, on average, four different alleles.
Which of these animals has a double circulatory system?
A) fish B) grasshopper C) dog D) hydra