Which is the hormone that stimulates growth by increasing cell size or rate of cell division?
A) calcitonin
B) growth hormone
C) oxytocin
D) tropic hormone
B
You might also like to view...
Many specialized cells, such as white blood cells, ____
a. remain in G0 until stimulated by external signals to reenter the cell cycle and divide
b. remain in S until hormonal signals cause the cell to reenter the cell cycle and divide c. divide continuously and never transition to G0 d. mutate into other cell types by signals from bone marrow cells e. skip anaphase in order to avoid the high likelihood of mutation during this phase of mitosis
The middle germ layer of an animal embryo that gives rise to muscle, several internal organs, and connective tissue layers is the
a. ectoderm
b. mesoderm
c. endoderm
d. zygoderm
Which of the following infectious particles do not have protein in their structure?
A) bacteriophages B) prions C) animal viruses D) viroids E) both prions and viroids
Why is satellite DNA not useful for establishing evolutionary relationships between species?
What will be an ideal response?