From which source, is it thought, that mitochondria in algae originated?

A. aerobic bacteria

B. anaerobic bacteria

C. Algae don't have mitochondria.

D. photosynthetic viruses

E. cyanobacteria


A. aerobic bacteria

Biology & Microbiology

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Four of the five choices listed below are different

forms of a class of nucleic acids. Select the exception. a. template b. ribosomal c. messenger d. transfer e. mRNA

Biology & Microbiology

Which one of the following is an important evolution concept that helps prevent organisms from mating across species boundaries?

a. hybrid formation b. postmating isolating mechanisms c. geographic isolation d. natural selection

Biology & Microbiology

The first step in the healing of a fracture is the formation of ________

Fill in the blank(s) with correct word

Biology & Microbiology

What type of cells are joined end-to-end, conduct water, and are connected to each other with strips of wall material?

A. Sieve cells B. Tracheids C. Companion cells D. Vessel members E. Sieve tube members

Biology & Microbiology