A warm front often brings

a. Cirrus clouds

b. Fair conditions

c. Cool weather

d. Steady rain

Which of the following is an enzyme needed to connect new bases to a growing strand of DNA? a. Connexin c. DNA polymerase b. Lactase d. Helicase

Monozygotic twins a. develop from two eggs and share half their genes. b. are twins where one is male and the other is female. c. develop from a single fertilized egg and have identical genes. d. share about 75% of their genes. reset selection

The symbiotic relationship in which one organism benefits and the other is harmed is known as

In what type of climate do trees produce narrower rings?

When animals hibernate, their heart rate and respiration decrease and they lose consciousness. Why do some animals hibernate?

Which area of the stomach directly adjoins the small intestine?

Athletes foot is caused by

Compare the characteristics of rivers and streams.

How does an f + cell differ from an hfr cell? how does an f + cell differ from an hfr cell? hfr strains have the f plasmid integrated into the chromosome. f + cells have no plasmids. hfr cells cannot perform conjugation.

How can the environment be organized into levels from simple to complex?