Which of the following is synonymous with blastema?
a. a temporary cell organelle
b. a temporary cell
c. a temporary organ
d. a temporary tissue
Answer: d. a temporary tissue
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The insertion of foreign DNA directly into a cell's nucleus using a glass micropipet is called (electrophoresis/electroporation/microinjection)
What will be an ideal response?
Some Creationists argue that while natural selection certainly can and does change the traits of species, 6,000 years is not long enough for it to have generated the diversity of life that we currently see. Biologists __________.
Fill in the blank(s) with the appropriate word(s).
How do insects overcome the inefficiency of their hemolymph flow in taking oxygen to their tissues?
A. Their bodies are tubular, thus increasing the body surface area where gaseous exchange takes place. B. Insects have highly vascularized extensions of their body walls, called parapodia. C. Their respiratory system consists of tracheae, which are tiny air tubes that take oxygen directly to the cells. D. A countercurrent mechanism ensures that the maximum amount of oxygen is absorbed from the environment.
Abl oncogene activation leads to:
a. small cell lung carcinoma b. invasive breast cancer c. colorectal cancer d. chronic myelogenous leukemia