Which of the following associations of reproductive strategies and their descriptions are correct?
A. viviparous - the embryo develops inside the body of the female from which it gains nourishment
B. oviparous - egg is deposited in external environment
C. ovoviviparous - produce eggs but retain them inside the female body until hatching occurs
D. All of the choices are correct.
Answer: D
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The following sequence represents events in the development of a fruit:
A. pollination, fertilization, embryo, ovary matures B. pollination, germination of pollen, endosperm, ovule C. pollination, endosperm, embryo, ovule matures D. pollination, fertilization, germination of pollen, ovule matures, embryo forms E. pollination, double fertilization, ovule matures, embryo forms, ovary matures
The rash associated with German measles is most likely caused by
A. an immunological reaction to the virus. B. the virus infecting the cells of the dermal layer beneath the skin. C. the virus infecting the cells of the skin. D. All of the choices are correct.
A DNA barcode system uses a nuclear gene that varies greatly between species
a. True b. False
Reptiles, including birds, belong to one major lineage of amniotes, and _____ belong to another
a. sharks c. mammals b. frogs and toads d. slamanders