An animal with a gastrointestinal tract is the ___________.
A. jellyfish
B. planarian
C. hydra
D. sponge
E. earthworm
E. earthworm
Biology & Microbiology
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Hydrogen bonds can form between guanine and __________, and between adenine and __________
a. phosphate; sugar b. thymine; cytosine c. cytosine; thymine d. sugar; phosphate e. adenine; guanine
Biology & Microbiology
Provide an example of gene redundancy that occurs in both eukaryotes and prokaryotes
What will be an ideal response?
Biology & Microbiology
Which of the following is a symbiotic relationship between club fungi and tree roots in which the fungal hyphae wrap around, but do not penetrate, the plant cells?
a) lichens b) ectomycorrhiza c) arbuscular ectomycorrhiza d) algal rhizoids e) algorhiza
Biology & Microbiology
The purpose of chlorophyll is to:
A) let CO2 enter the plant. B) absorb light. C) make ATP. D) make NADPH.
Biology & Microbiology