Bioluminescence can be driven by
A) green fluorescent protein.
B) ATP.
C) chemical oxidation.
D) either ATP or chemical oxidation.
E) mushrooms.
Answer: D
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When we first see chiasmata under a microscope, we know that _____
A) asexual reproduction has occurred B) meiosis II has occurred C) anaphase II has occurred D) prophase I is occurring E) separation of homologs has occurred
The ______________ is a digestive cavity in which food enters an opening at one end and passes through the animal in one direction as it is digested.
A. gastrovascular cavity B. stomach C. alimentary canal D. epithelial cavity E. intestine
Which of the following choices is not a characteristic of cancer cells?
a. altered plasma membrane and cytoplasm b. increased capacity for adhesion c. mutated DNA d. abnormal growth and division
In a centrifuged blood sample, which layer contains the red blood cells?
1.Hematocrit
2.Leukocytes
3.Plasma
4.Platelets