Which of the following statements regarding the loss of biodiversity is false?
A. Earth is losing 2.5% of its species
annually.
B. There will be fewer species at the end of
the 21st century than there are now.
C. Loss of biodiversity results in the loss of
novel compounds with potential medical
applications.
D. Loss of biodiversity may result in less
productive and resilient communities.
E. Habitat degradation is one of the most
important threats to biodiversity.
A
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The family of reoviruses contain dsRNA genomes that replicate from the template of ________ which makes it a ________ replication process
A) only the positive ssRNA strand / conservative B) only the positive ssRNA strand / semiconservative C) both RNA strands /conservative D) both RNA strands / semiconservative
An action potential in a neuron begins when
a. a threshold potential is reached. b. the resting potential is established. c. gated sodium channels close. d. when gated potassium channels close. e. more than one of these occur
In plants, ovules develop into:a
seeds. b. fruits. c. corolla. d. calyx. e. bracts.
Protist survival is limited mainly by
A) host availability. B) availability of moisture. C) speed at which they can bud off new cells. D) trophozoite size.