Why do scientists breed American chestnut trees with Chinese chestnut trees?

a. to enable them to survive droughts
b. to enable them to survive floods
c. to make them resistant to disease
d. to make them resistant to insects


C

Biology & Microbiology

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Which of the following is found in many tetrapods but not in fish?

A) extensive parental care B) asexual reproduction C) internal fertilization D) viviparity E) production of amniotic eggs

Biology & Microbiology

How does probability differ from actuality?

What will be an ideal response?

Biology & Microbiology

All of the following features are true of Anthropoids except  

A.  they include monkeys, apes, and humans. B.  almost all were diurnal. C.  opposable thumbs. D.  living in groups with complex social interactions. E.  changes to eye design and increase in brain size.

Biology & Microbiology

An organism that possesses a scolex and proglottids

lacks a. bilateral symmetry. b. a coelom. c. mesodermal tissue. d. bilateral symmetry and a coelom. e. bilateral symmetry, a coelom, and mesodermal tissue.

Biology & Microbiology