Which statement best describes a lophophore?
a. It is a ciliated ring of tentacles surrounding the mouth.
b. It is a structure used for locomotion in the Lophophorata.
c. It is the opening also referred to as the anus in the Ecdysozoa.
d. It is a larval stage found in the Lophotrochozoa and the Ecdysozoa.
e. It is one of the openings to the excretory system of phylum Platyhelminthes.
a
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Staphylococcal food poisoning is caused by the ingestion of improperly stored or cooked food in which ________ has grown.
A. Staphylococcus aureus B. Staphylococcus epidermidis C. Staphylococcus pneumoniae D. All of the choices are correct.
Why is it thought that homeotic genes arose very early in the evolution of animals?
What will be an ideal response?
Light reflected by chlorophyll a has a wavelength of approximately _____
1.475 nm
2.500 nm
3.575 nm
4.650 nm
Which is true about the FTO gene?
A) If you carry it, you will have a high metabolism. B) If you carry it, you will be obese. C) It can be turned off with a diet higher in fat. D) It can be turned off with a diet high in B vitamins.