Animals with a body cavity located between the mesoderm and endoderm are ________.
Fill in the blank(s) with the appropriate word(s).
pseudocoelomate
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Describe the production and action of ADH
What will be an ideal response?
One of the following is not a part of its paired
term. Choose the exception.
a. atom; organism b. community; ecosystem c. population; cell d. molecule; biosphere e. species; community
All humans alive today have inherited their mitochondrial DNA from some individual female common ancestor. Studies indicate this woman probably lived about ________ years ago, when fossil evidence indicates that Homo sapiens was restricted to ________
A) 20,000; Africa B) 50,000; Africa and Asia C) 180,000; Africa D) 500,000; Africa, Asia, and Europe
Protospacer adjacent motifs, PAMs, allow bacteria to do which of the following?
A) recognize and digest foreign DNA B) recognize proper spacing for bacterial transcription initiation C) recognize and integrate foreign DNA D) recognize and digest their own DNA