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