Q: Other than nitrogen, which nutrient most often limits marine production? Choices: - potassium - zinc - calcium - phosphorus A:
phosphorus

(Question)
Q: What is the process when animals maintain an internal temperature? Choices: - osmoregulation - bioaccumulation - homeostasis - thermoregulation A:
(Answer)
thermoregulation

Ques: Q: An important chemical compound, which supplies living things with the energy they need to survive, is composed of carbon, oxygen and atoms of what other element? Choices: - magnesium - nitrogen - calcium - hydrogen A:
Ans: hydrogen

(Q).
Q: The shield type of what phenomenon commonly forms above hotspots in the oceans? Choices: - tsunami - hurricane - tornado - volcano A:
(A).
volcano

Ques:Q: What process would be impossible without some variation in the inherited traits of organisms within a species? Choices: - environmental selection - darwin's selection - characteristic selection - natural selection A:

Ans:natural selection

Q: Sometimes two or more distinct phenotypes can each have their advantages and be selected for by natural selection; this is known as what? Choices: - extra selection - multiplying selection - shedding selection - diversifying selection A:
diversifying selection