Why is the preservation of ancestor species, such as Mexican teosinte (Zea diploperennis), important in the context of human welfare?
A) Edible species, such as Z. diploperennis, can be used for food if all our food crops become extinct.
B) Species such as Z. diploperennis can be used to manufacture anticancer drugs.
C) Genes for pest resistance from species such as Z. diploperennis can be transferred to food crops.
D) Genes from species such as Z. diploperennis can be inserted into imperiled livestock varieties to help prevent them from becoming extinct.
C
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Which of the following would be the most likely cause of deep venous thrombosis?
a. anemia b. decreased skeletal muscle action c. high blood pressure d. increased skeletal muscle action e. low blood pressure
Meiosis that produces microspores is indicated by
a. A. b. B. c. C. d. D. e. E.
When oxytocin is released during childbirth, the hormone targets cells in the
A) kidneys. B) breasts. C) hypothalamus. D) uterus. E) breasts and uterus.
If a child belonged to blood type O, he or she could not have been produced by which set of parents?
a. A and B b. A and O c. AB and O d. O and O