The first phylum with three germ layers is
a. Cnidaria.
b. Platyhelminthes.
c. Annelida.
d. Arthropoda.
e. Nematoda.
B
Biology & Microbiology
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Where are the sugars formed during photosynthesis?
a. Cell membrane b. Grana c. Stroma d. Cell wall e. Cristae
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In this chemical synapse, which structure represents the vesicle releasing neurotransmitter molecules?
a. A b. B c. C d. D e. E
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Cotyledons develop as part of _____
a. carpels c. embryo sporophytes b. accessory fruits d. petioles
Biology & Microbiology
The use of filtration for sterilization
A. can remove viruses. B. uses heat and filtration. C. relies on gravity. D. leaves behind endospores. E. removes toxins.
Biology & Microbiology