Q: What is a molecule made up of two subunits? Choices: - chloride - enzyme - acid - dimer A:
dimer

(Question)
Q: Helium-3 is produced by beta decay of a certain what? Choices: - electron - quark - particle - nuclide A:
(Answer)
nuclide

Ques: Q: For fertilization to occur in angiosperms, pollen has to be transferred to the stigma of what? Choices: - stem - leaf - root - flower A:
Ans: flower

(Q).
Q: What is needed to create muscles, regulate chemical reactions, and transport oxygen? Choices: - cytoplasm - lipids - enzymes - proteins A:
(A).
proteins

Ques:Q: How quickly a population changes in size over time is known as what? Choices: - population impact rate - population multiplication rate - population direction rate - population growth rate A:

Ans:population growth rate

Question: Q: What diagnostic technology uses high-frequency vibrations transmitted into any tissue in contact with the transducer? Choices: - laser - radiation - sonar - ultrasound A:
Answer:
ultrasound