The first organisms to release oxygen by photosynthesis were:a

gymnosperms.
b. green sulfur bacteria.
c. algae.
d. flowering plants.
e. cyanobacteria.


E

Biology & Microbiology

You might also like to view...

Distinguish between a circadian clock and circadian rhythm

What will be an ideal response?

Biology & Microbiology

BRCA1 is a gene involved in repair of double-stranded DNA breaks. Mutant forms of this gene are linked to a substantial proportion of familial breast cancers

A woman who inherits a certain allele of the gene has about a 60-80% chance of getting breast cancer, as well as an elevated chance of getting ovarian cancer, in her lifetime. a. Why don't a higher percentage of women with the mutation get breast cancer? b. How would the breast cancer inheritance caused by BRCA1 be described in Mendelian terms?

Biology & Microbiology

You are analyzing some material gathered from a bacterial cell. You find it tests positive for both polysaccharides and amino acids. What part of the bacterial cell did this sample come from?

A. S-layer B. glycocalyx C. cell membrane D. nucleoid E. cell wall

Biology & Microbiology

A human cell with a Barr body always comes from a female.

Answer the following statement true (T) or false (F)

Biology & Microbiology