Which of the following is the only bacteria to photosynthesize by a pathway that produces oxygen as a by-product?

A. Eukaryotic bacteria
B. Aerobic bacteria
C. Cyanobacteria
D. Protocells
E. Archeans


Answer: C

Biology & Microbiology

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Neuromasts are always located on the fish's body surface

Indicate whether the statement is true or false.

Biology & Microbiology

The DNA sequence ATGCATGC will pair with which of the following RNA strands?

A. CGAUCGAU B. AUGCAUGC C. UACGUACG D. UAGCTAGC

Biology & Microbiology

In a temperate rain forest, primary productivity remains relatively constant

Indicate whether the statement is true or false

Biology & Microbiology

The common edible frog of Europe is a hybrid between two species, Rana lessonae and Rana ridibunda. The hybrids were first described in 1758 and have a wide distribution, from France across central Europe to Russia Both male and female hybrids exist, but when they mate among themselves, they are rarely successful in producing offspring. What can you infer from this information?

A) Postzygotic isolation exists between the two frog species. B) Prezygotic isolation exists between the two frog species. C) These two species are likely in the process of fusing back into one species. D) The hybrids form a separate species under the biological species concept.

Biology & Microbiology