What is an ammocoete?
What will be an ideal response?
An ammocoete is the larval stage of a lamprey. What is its possible significance to the evolution of vertebrates? Because basic chordate and many vertebrate characterisitcs are present, many consider it the closest living form to ancestral chordates.
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A chemist adds a chemical to pure water and there is a 100 fold increase in the concentration of hydrogen ions. What is the best approximation of the new pH value?
A. 0 B. 5 C. 7 D. 9 E. 14
The sequential stages through which individuals develop, grow, maintain themselves, and reproduce are collectively
known as the ____.
a. central dogma b. catabolic reactions c. anabolic reactions d. transformation e. life cycle
After birth, which hormone causes the uterus to "shrink" and also causes the mother's breast tissue to
contract forcing milk into the ducts? a. estrogen b. prolactin c. progesterone d. oxytocin e. hCG
A regression analysis of two traits yields a slope of 0. Explain the biological meaning of this value
What will be an ideal response?