All snakes are ovoviparous

a. true
b. false


Ans: b. false

Biology & Microbiology

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Which statement is true about predictions made from the theory of common descent?

A) They are almost always supported when they can be tested. B) They cannot be tested and thus we cannot know if they are correct. C) They are supported and not supported by experimental evidence with equal frequency. D) They are supported by experimental evidence for all organisms except humans.

Biology & Microbiology

Explain how observing artificial selection provides an inference for natural selection

What will be an ideal response?

Biology & Microbiology

Redwood trees are the tallest land plants that are members of the group known as conifers. Which of the following are features that are shared by all redwood trees?

A. Cell walls containing cellulose B. Leaves that have a cuticle C. Vascular tissue containing lignin D. Flowers E. Answers A and B F. Answers A, B, and C G. Answers A, B, C, and D

Biology & Microbiology

Why is sexual reproduction most likely the ancestral state in eukaryotes?

a. Asexual reproduction is completely absent from basal unicellular eukary-otes. b. Under the parsimony principle, the most common form of a trait's state is always the ancestral state. c. The "twiggy" distribution of obligate asexual reproduction in phylogenetic trees makes it more likely that asexuality is a derived trait. d. Evolutionary models suggest that obligate asexual taxa are more prone to extinction than sexual ones.

Biology & Microbiology