If you see a yellow flower with "nectar guide" stripes and a strong, sweet odor, it is likely pollinated by ____
a. flies
b. birds
c. bats or moths
d. butterflies
e. bees
ANSWER: e
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The accompanying figure represents the research of which scientist(s)?
a. Delbrück b. Avery and McCarty c. Chagraff d. Luria e. Hershey and Chase
Members of which phylum are called acorn worms?
a. Hemichordata b. Echinodermata c. Arthropoda d. Cnidaria
Gram-positive bacteria have a
a. thin cellulose wall between two membranes. b. thin peptidoglycan wall between two cell membranes. c. thick cellulose wall outside the plasma membrane. d. thick peptidoglycan wall outside the plasma membrane.
If a cell has a haploid number of 5, during mitosis there will be ________ chromosomes at metaphase, ________ chromosomes at anaphase, and ________ chromosomes per daughter cell at telophase
A) 10; 10; 10 B) 10; 10; 5 C) 5; 10; 5 D) 10; 20; 10 E) 5; 5; 5