Two oxygen atoms joined to each other by the sharing of two pairs of electrons form a(n):
A. double covalent bond.
B. single bond.
C. hydrogen bond.
D. ionic bond.
A
You might also like to view...
Sludge
A. is a byproduct of sewage treatment. B. may be a source of pollution. C. takes up space in a landfill. D. All of the choices are correct.
In seed-bearing plants, what structure becomes the seed following fertilization?
A. The microsporangium. B. The pollen grain. C. The ovule. D. The endosperm. E. The sporophyte.
Which of the following statements is false?
a. All the cells of any one single individual human have the same genes. b. Only red blood cells have hemoglobin genes. c. Different genes are activated depending on the cell they are in. d. Genetically, liver cells and brain cells differ mostly in function. e. Introns may be a sort of genetic gibberish.
The increase and decrease of individuals in a population around the carrying capacity in response to resource availability and other environmental factors is known as which growth pattern?
A) exponential growth B) logistic growth C) zero growth D) death rate