Choose the letter of the best match from the following:A. Third trimester of pregnancyB. Second month of pregnancyC. First month of pregnancyD. Second trimester of pregnancyE. Third month of pregnancyThe heart begins to beat.

What will be an ideal response?


B
B. second month of pregnancy

Biology & Microbiology

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When a soil bacterium infects a plant root and introduces its Ti plasmid, how does this affect both the infectious bacterium and the plant?

What will be an ideal response?

Biology & Microbiology

Aquatic biomes cover most of the Earth's surface

Indicate whether the statement is true or false

Biology & Microbiology

Choose the one most appropriate answer for each.

A. Griffith B. Miescher C. Avery and McCarty D. Watson and Crick E. Hershey and Chase F. Chargaff G. Wilkins H. Franklin

Biology & Microbiology

Atoms that have the same number of protons but differ in the number of neutrons are called ________

Fill in the blank(s) with correct word

Biology & Microbiology