What are plasmids?
A) Small, circular DNA molecules that contain just a few genes and that can be passed on to other bacteria
B) Small, circular RNA molecules that contain just a few genes and that can be passed on to other bacteria
C) Small, circular DNA molecules that contain just a few genes but that cannot be passed on to other bacteria
D) Small, circular RNA molecules that contain many genes but that cannot be passed on to other bacteria
A
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Which of the following systems is the most stable in terms of species composition and distribution?
A. populations B. communities C. ecosystems D. biomes E. trophic pyramids
What type of thinking is required?
What will be an ideal response?
Each kidney contains about one million nephrons.
a. true b. false
Because of its function, this hormone is often called interstitial cell-stimulating hormone
A) LH B) inhibin C) FSH D) GnRH