Select the correct answer. Which statement about forces is true?
ОА.
Forces are defined by strength but not direction,
OB
Forces are defined by direction but not strength.
Forces are defined by both strength and direction.
ОС.
OD
Forces act only on objects that are in contact.

6. in the dna double helix, how are the two strands of dna held together? a. chemical bonds between base pairs hold the two strands of dna together. b. hydrogen bonds between the base pairs hold the two strands of dna together. c. hydrogen bonds between sugar groups and phosphate groups hold the two strands of dna together. d. chemical bonds between sugar groups and phosphate groups hold the two strands of dna together.

Abnormal softening of a gland is known as

Most animal cell membranes have proteins that pump. ions out of the cell and potassium ions into this