Which of the following statements is FALSE
about cowbirds?
a. Their host relationship is similar to
cuckoos.
b. They are insect-eaters.
c. Females can lay thirty eggs in a season.
d. Cowbird hatchlings are recognized as
imposters by host parents.
e. They now parasitize at least fifteen species
of native North American birds
D
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A mutualistic association between a plant root and a fungus is known as a
(a) sac fungus. (b) lichen. (c) mycorrhizal root. (d) club fungus.
In gametogenesis in both human males and females (select all correct choices):
A. diploid stem cells are the precursors to haploid gametes. B. stem cells form during embryonic development and divide by mitosis. C. primary spermatocytes and primary oocytes form by mitosis from diploid stem cells. D. secondary spermatocytes and secondary oocytes form by meiosis from primary spermatocytes and primary oocytes. E. None of these choices are correct.
Meerkats are small desert mammals that live in groups of 20–50 animals. You observe a female meerkat who spends all of her time caring for the 1-year-old offspring of her sister (her nieces and nephews)
The aunt is capable of reproduction but has not reproduced. Which of the following would contribute to the evolution of this behavior pattern? A. The odds of any one female reproducing are completely random. B. Offspring require the efforts of a single adult (the mother) in order to be successful. C. Offspring require the efforts of at least two adults in order to be successful. D. Offspring are independent at the age of three months, with no adult care after that point.
How does a vesicle form from the cell membrane?
What will be an ideal response?