What plant structures comprise a sorus?

a. rhizomes
b. fronds
c. strobili
d. sporangia


Ans: d. sporangia

Biology & Microbiology

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A(n) ________ is an instrument used to separate subcellular structures and macromolecules on the basis of size, shape, and density. ________ developed this instrument in Sweden during the period 1925—1930.

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

Biology & Microbiology

The letter C indicates a ____

a. primary producer b. primary consumer c. second-level consumer d. third-level consumer e. fourth-level consumer

Biology & Microbiology

Considering the types of side chains on amino acids and their relationship to protein structure, where are the amino acids with hydrophobic side chains most likely to be located?

What will be an ideal response?

Biology & Microbiology

Which molecule is not formed by covalent bonding?

A) H2O B) CH4 C) O2 D) NaCl E) H2

Biology & Microbiology