Q: What is formed when an enzyme binds its substrate? Choices: - vessel - substrate complex - nucleus - substrate complex - lock and key model - enzyme - substrate complex A:
enzyme - substrate complex

(Question)
Q: Crabs, lobsters, shrimp, krill, and woodlice are all? Choices: - sponges - porifera - arthropods - crustaceans A:
(Answer)
crustaceans

Ques: Q: What term describes how close estimates are to one another? Choices: - precise - Distant - efficiency - precision A:
Ans: precision

(Q).
Q: What has atoms with unstable nuclei? Choices: - hydrocarbon - microwaves - radionuclide - radioisotope A:
(A).
radioisotope

Ques:Q: Every chemical reaction between molecules involves breaking and forming of what? Choices: - orbits - ions - atomic pathways - bonds A:

Ans:bonds

Q: How many chambers does a mammalian heart have? Choices: - one - five - three - four A:
four