Which of the following is a characteristic of a strong base?

O

A. It contributes OH-ions to a solution.

O

B. It contributes H + ions to a solution.

O

C. It does not completely dissociate in water.

O

D. It is more concentrated than a weak base.

Explain the role of hormones in excretion and any relation to homeostasis.

Which organelle belongs in the center of the diagram that is comparing the plant cell and animal cell? A) leaves B) nucleus C) cell wall D) chloroplasts

Which of the following is an organic molecule? A. NaCi B. FeO C. CH4 D. H2O

Structure moves up against epiglottis when food is swallowed to prevent passage of food into it. a. The larynx b. The nose c. The pharynx

A fossil was found and determined by radiometric dating to be 11,400 years old. what is the ratio of carbon-14 to carbon-12 in this fossil compared to its environment?

Identify the pancreas as the source gland for insulin, and describe the function of insulin in maintaining blood sugar levels.

11a+9=4a+30 how do i solve for a

G select the true statements about protein secondary structure. the β-pleated sheet is held together by hydrogen bonds between adjacent segments.

A unique feature of dna is that it can duplicate itself through a process called

Flower color in a particular plant species is determined by one gene. The alleles of that gene can code for either red flowers or blue flowers. When a red plant and a blue plant are crossed, some of the offspring produce purple flowers.