The sex of most mammals, birds, and insects is determined by:

a. the temperature.
b. the external environment.
c. sex chromosomes.
d. chance.
e. the internal environment


c

Biology & Microbiology

You might also like to view...

Which of the following is true of fluorescence microscopy?

A) Fluorescent light is emitted throughout the specimen being viewed. B) Fluorescence microscopy is best at viewing rounded, thicker specimens. C) Fluorescence microscopy is used to view dead specimens only. D) Fluorescence microscopy is able to overcome problems encountered with using confocal scanning microscopy. E) Fluorescence microscopy presents images in three dimensions.

Biology & Microbiology

Coniferous forests are found across Canada and northern Europe. How have conifers adapted to minimize water loss through evaporation and handle the short growing seasons in these regions?

What will be an ideal response?

Biology & Microbiology

Genes for the resistance to antibiotics are usually located _____.

A.) on plasmids B.) on the main chromosome C.) in mitochondria D.) in eukaryotic cells E.) on the outside of the cell wall

Biology & Microbiology

Where does the signal originate in EEG?

Biology & Microbiology