Large external polysaccharides are degraded by bacteria and archaea using ________ ________, which they secrete outside the cell.

Fill in the blank(s) with the appropriate word(s).


hydrolytic enzymes

Biology & Microbiology

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Of the four types of T cells, only the ____________________ T cells destroy infected body cells

Fill in the blank(s) with correct word

Biology & Microbiology

The birth process in mammals is an example of positive feedback

Indicate whether the statement is true or false.

Biology & Microbiology

In a bacterial cell, the DNA is in the:

A) cell envelope. B) cell membrane. C) nucleoid. D) nucleus. E) ribosomes.

Biology & Microbiology

What structures evolved in the Acacia in order to develop a mutualistic relationship with the Pseudomyrmex ant?

A. Nectaries and Beltian bodies B. Secondary compounds and tough fibrous leaves C. Hollow thorns and a fibrous root system D. Nectaries and tough fibrous leaves E. Secondary compounds and Beltian bodies

Biology & Microbiology