Provide evidence to both support and refute the current existence of life on Mars. What will be an ideal response?
ANSWER: Geological formations suggest that long ago there was flowing water on Mars, and recent
evidence has found ice on Mars today. However, the absence of liquid water and the absence
of an ozone layer to block UV radiation would make life on Mars very challenging today. If
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In a sickled red blood cell, what do the
hemoglobin molecules do?
a. repel each other b. stick together c. fracture and release their contents into the cytoplasm d. create holes in the cell membrane e. more than one of these
Compare and contrast DNA and RNA
What will be an ideal response?
Which is the most abundant kind of tissue in most animals?
A) connective B) epithelial C) blood D) muscle
Regulation of integrin-mediated adhesion can regulate cell movement.
a. true b. false