Photosynthetic organisms of the open oceans are confined to the upper
A. two hundred meters.
B. two hundred kilometers.
C. two hundred centimeters.
D. two hundred millimeters.
E. two thousand kilometers.
Answer: A
You might also like to view...
In this chemical synapse, which structure represents the receptors that bind neurotransmitter
molecules?
a. A b. B c. C d. D e. E
Bacterial cells pick up free pieces of DNA that were secreted by live bacteria or released from dead bacteria in their environment. This process is called
A. conjugation. B. transduction. C. infection. D. replication. E. transformation.
Which statement is TRUE of the behavior of chromosomes in mitosis?
A) All chromosomes are duplicated except the sex chromosomes. B) If the original number of chromosomes was 46, each new cell will have 23. C) Each new cell receives half of the number of chromosomes in the original cell. D) The sister chromosomes are not identical because of breakages in the DNA. E) Each new cell receives copies of all the original chromosomes.
The hormone that plays a pivotal role in setting the metabolic rate and thus impacting body temp is.