Seeds appeared in the fossil record by
A. a billion years ago.
B. 545 million years ago.
C. 100 million years ago.
D. 365 million years ago.
E. 780 million years ago.
Answer: D
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but this damage was repaired by __________.
a. DNA repair genes b. oncogenes c. tumor suppressor genes d. all of these
The dragline that is laid by many spiders serves as a means of:
A. capturing prey. B. capturing a mate. C. detecting the pull of gravity. D. communication. E. holding the eggs of spiders
You are observing a population of lizards when you notice that the number of adults has increased and is higher than previously observed. One explanation for such an observation would include
A) reduction in death rate. B) increased immigration. C) increased emigration. D) decreased emigration. E) increased birth rate.
A protein that will be transported to the plasma membrane will travel the following path
A) ribosome, endoplasmic reticulum, vesicle, golgi apparatus, vesicle, plasma membrane B) ribosome, smooth endoplasmic reticulum, golgi apparatus, vesicle, plasma membrane C) endoplasmic reticulum, ribosome, golgi apparatus, vesicle, plasma membrane D) nucleus, vesicle,endoplasmic reticulum, vesicle, golgi apparatus, vesicle, plasma Membrane