What is part of the body's initial line of defense against pathogens?

A. Phagocytes
B. Mucous membranes
C. T cells
D. Memory T cells
E. Cytokines


B. Mucous membranes

Biology & Microbiology

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What am I? I have a jointed hollow stem with reduced megaphylls

a. moss b. horsetail c. club moss d. whisk fern e. hornwort

Biology & Microbiology

When an experiment has a large sample size, and there is a large difference between the results in the experimental and control groups, how likely is it that the experimental results are statistically significant?

A) very unlikely B) unlikely C) somewhat likely D) very likely

Biology & Microbiology

An example of ex situ conservation is a national park. Indicate whether the statement is true or false

Biology & Microbiology

Sharks can be oviparous, ovoviparous, or viviparous

a. true b. false

Biology & Microbiology