Adulthood and mating of helminths occur in which host?

A. Primary host
B. Transport host
C. Definitive host
D. Secondary host
E. Mating occurs in all hosts.


Answer: C

Biology & Microbiology

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Restriction enzymes are  

A.  proteases. B.  lipases. C.  endonucleases. D.  exonucleases.

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What is a major benefit of CRISRPR-Cas9 over older gene therapy tools?

A) It delivers a gene to a specific part of the genome. B) It can be used in vivo. C) It is the only tool that can delivery genes safely in humans. D) It can also be used to deliver proteins.

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Birds are living representatives of which lineage?

a. lepidosaurs b. anapsids c. archosaurs d. synapsids

Biology & Microbiology

In marine and freshwater environments, the penetration of sunlight and the mixing of nutrients, oxygen, and waste products are the dominant factors controlling the microbial community.

Answer the following statement true (T) or false (F)

Biology & Microbiology