The wings of a bird and the front legs of a dog are

a) vestigial structures
b) homologous structures
c) acquired characteristics
d) analogous structures


Ans: b) homologous structures

Biology & Microbiology

You might also like to view...

Some proteins that bind to DNA block transcription, whereas other proteins can activate transcription

Indicate whether the statement is true or false.

Biology & Microbiology

The metabolic diversity of photosynthetic bacteria stems from different

A) bacteriochlorophylls and pigments they contain. B) chlorophylls they can have and organic compounds they can produce. C) light-harvesting complexes, electron donors, and organic compounds they produce. D) unrelated taxa capable of photosynthesis.

Biology & Microbiology

Which of the following refers to the flow of hydrogen ions across the mitochondrial membrane?

a. Chemiosmosis b. Diffusion c. Citric acid cycle d. Oxidative phosphorylation

Biology & Microbiology

All of the following bases are found in RNA molecules EXCEPT

A. adenine. B. thymine. C. uracil. D. cytosine. E. guanine.

Biology & Microbiology