What is a distinct characteristic of asexual reproduction?

a. fusion of egg and sperm
b. a cell splitting into identical halves
c. genes contributed by two parents
d. high degree of genetic variation
e. formation of a fertilized egg


b

Biology & Microbiology

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____ is composed of dense connective tissue

a. Adipose b. Blood c. Bone d. Cartilage e. A tendon

Biology & Microbiology

What is an advantage of the economy of scale?

a. division of labor c. sexual reproduction b. ability to eat more food d. multicellularity

Biology & Microbiology

Which is a likely biotic factor limiting songbird distribution in Hawaii to alpine habitats?

A) temperature B) oxygen content C) moisture D) insects causing fatal diseases in songbirds at lower altitudes

Biology & Microbiology

The key chemical messenger responsible for increasing cardiac output when animals are exercising or under certain stresses is

A. epinephrine. B. acetylcholine. C. dopamine. D. serotonin. E. glutamate.

Biology & Microbiology