Antenna complexes, ETCs, and carbon fixation are all found in:

-animal cells.
-bacterial cells.
-plant cells.
-mitochondria.
-all of the above


-plant cells.

Biology & Microbiology

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A researcher is comparing atmospheric CO2 levels in Earth's northern and southern hemispheres during June-August. As more terrestrial plants are present in the northern hemisphere, what do you expect she will find?

A. Atmospheric CO2 measurements will be greater in the northern hemisphere. B. Atmospheric CO2 measurements will be greater in the southern hemisphere. C. As atmospheric CO2 measurements represent global amounts, measurements in the northern and southern hemispheres will be (approximately) the same.

Biology & Microbiology

Each segment of an annelid typically contains bristles of chitin called

A. cilia. B. chaetae. C. parapodia. D. leglets.

Biology & Microbiology

The energy transduction reactions of photosynthesis convert solar energy into chemical energy in the form of ________ and ________

Fill in the blank with correct word.

Biology & Microbiology

Which gland is active in the building up of the body's defense system and is larger in infants and children?

A) thyroid B) pancreas C) posterior pituitary D) thymus

Biology & Microbiology