The outer coat of pollen grains is called sporopollenin, which is made of ________

a. cellulose
b. an unknown substance
c. protein
d. glycolipid


b

Biology & Microbiology

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Oxygen has an atomic mass of 16 and an atomic number of 8.

A. Oxygen has 16 neutrons. B. Oxygen has 8 electrons. C. Oxygen can form two bonds with other atoms. D. Oxygen has 16 neutrons and 8 electrons. E. Oxygen has 8 electrons and can form two bonds with other atoms.

Biology & Microbiology

Mismatch of either the Rh antigen or the AB antigen results in lysis of red blood cells by complement

Indicate whether this statement is true or false.

Biology & Microbiology

f you consider the combined processes of photosynthesis and cellular respiration, the electrons found in H2O at the beginning of the light reactions end up attaching to ________ during respiration.

-O2 to make new H2O -NADPH to make new glucose -pyruvate to make ethanol -electron transport carriers to make O2 -none of the above

Biology & Microbiology

A trip to space finds a planet rich with green light. Scientists hope to introduce a photosynthetic organism to this planet. What sort of organism should they choose?

What will be an ideal response?

Biology & Microbiology