Describe reproduction in the sea star.
What will be an ideal response?
Separate sexes release sperm and eggs into the sea water. After fertilization, eggs develop into bipinnaria larvae, which in turn develop into new sea stars.
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Quorum sensing requires a strong gradient to be reached before the signaling molecules are transported into the cytoplasm
Indicate whether the statement is true or false.
Which type of mutation substitutes one amino acid for another?
A) nonsense B) missense C) sense D) antisense
In humans, and some other vertebrates, the organ that collects sound is called the ____
a. auditory nerve
b. cochlea c. eardrum d. pinna e. round window
Which statement regarding the scientific method is FALSE?
(a). Inductive reasoning is used to form a hypothesis. (b). Observations are used to form a hypothesis. (c). Experiments need to be repeatable. (d). Original hypotheses are formed after an experiment. (e). The control and experimental group are identical except for one variable.