Which type of defense mechanism is not classified as the first line of defense?

a. Chemical barriers
b. Skin
c. Mechanical barriers
d. Physical barriers
e. Leukocytes


e

Biology & Microbiology

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Some vertebrates like frogs and humans do not have a conspicuous tail, yet even humans have the remnant of one known as the:

A. sacrum B. lumbar C. spina bifida D. fundus E. coccyx

Biology & Microbiology

_______ is anything that occupies space and has mass.

a. An element b. An atom c. Matter d. A molecule

Biology & Microbiology

Gliding motility can be used to propel bacteria ________.

A. through liquids only B. along the framework of the cytoskeleton of host cells C. across solid substrates only D. through the air only

Biology & Microbiology

During photosynthesis, solar energy is converted to

What will be an ideal response?

Biology & Microbiology