Ques: Q: The net effect of aldosterone is to conserve and increase water levels in the plasma by reducing the excretion of what element, and thus water? Read this paragraph and choose the correct option from the provided answers: Aldosterone Recall that aldosterone increases the excretion of potassium and the reabsorption of sodium in the distal tubule. Aldosterone is released if blood levels of potassium increase, if blood levels of sodium severely decrease, or if blood pressure decreases. Its net effect is to conserve and increase water levels in the plasma by reducing the excretion of sodium, and thus water, from the kidneys. In a negative feedback loop, increased osmolality of the ECF (which follows aldosterone-stimulated sodium absorption) inhibits the release of the hormone (Figure 26.13). Choices: - oxygen - potassium - lithium - sodium A:
Ans: sodium

Ques: Q: What do you call a science that aims to find solutions to practical problems? Read this paragraph and choose the correct option from the provided answers: Life science may be basic or applied science. The aim of basic science is to gain new knowledge and a better understanding of the natural world. The aim of applied science is to find solutions to practical problems. Choices: - applied experience - experimental science - evolved science - applied science A:
Ans: applied science

Ques: Q: When scientists work in natural settings rather than a lab, it is called what? Read this paragraph and choose the correct option from the provided answers: Some life scientists mainly do lab research. Other life scientists, like the botanist in Figure below , work in natural settings. This is called fieldwork . Whether in the lab or the field, research in life science can be dangerous. It's important to be aware of the risks and how to stay safe. Choices: - outside work - extracurricular activity - exploratory - fieldwork A:
Ans: fieldwork

Ques: Q: What is a sac filled with fluid or other material? Read this paragraph and choose the correct option from the provided answers: Cysts may develop in the ovaries. A cyst is a sac filled with fluid or other material. Ovarian cysts are usually harmless and often disappear on their own. However, some cysts may be painful and require surgery. Choices: - a lesion - Golgi apparatus - a receptacle - a cyst A:
Ans:
a cyst