If you diligently wash hands before and after lab, you don’t need to wear gloves.

A) True
B) False


B) False

Biology & Microbiology

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This lineage of Echinoderms is made up of sea urchins and sand dollars, which have their ossicles

fused into solid tests that restrict flexibility but provide excellent protection.

a. Echinoidea b. Ophiuroidea c. Crinoidea d. Holothuroidea e. Asteroidea

Biology & Microbiology

DNA contains all of the following nitrogen-containing bases EXCEPT ____

a. adenine b. uracil c. guanine d. adenine e. thymine

Biology & Microbiology

In barley seed germination, the __________ releases gibberellin which triggers the synthesis of

__________ in the __________. a. seed coat; ?-amylase; embryo b. endosperm; cellulase; embryo c. embryo; ?-amylase; endosperm d. embryo; cellulase; seed coat e. endosperm; ?-amylase; embryo

Biology & Microbiology

In which organelles can grana and thylakoids be found as structural components?

a. ribosomes b. mitochondria c. chloroplasts d. chromoplasts

Biology & Microbiology