Very cold periods in earths history resulted in which of the following?

deposits of pollen

tree rings

sunspots

glaciers

Algal cells are placed in an isotonic solution. Additional amounts of solutes are slowly added to the solution. What happens to the cells? Question 7 options: They will begin to swell. They will burst. They will stay the same. They will shrink.

A low secretion of luteinizing hormone (LH) in the normal male adult would cause A. shrinkage of the anterior pituitary gland B. decreased testosterone secretion C. excessive beard growth D. increased spermatogenesis

Jason lives near a state park, and he likes hiking through the grassy trails that lead to a nearby lake. He appreciates nature and the surrounding components making up the ecosystem.

Which of the following is a scientific question? A. Should commercial fisheries be regulated to protect dolphin habitats? B. Are dolphins more interesting than whales? C. Do dolphins emit characteristic whistles in response to their offspring? D.

Which of the following activities is likely to contribute to the hole in the ozone layer? habitat fragmentation building a nuclear power plant introducing invasive species using products with cfcs

I need an answer quickly How is precipitation related to high - and/or low-pressure air? Question options: High-pressure systems lead to rain. Low-pressure systems lead to rain. Both high - and low-pressure systems lead to rain.

The activation energy for chemical reactions in living things is relatively high or relatively low?

A client who just has been diagnosed with primary open-angle glaucoma (poag) refuses therapy. the nurse reinforces that it is important for the client to seek treatment. which goal is the nurse trying to achieve?

How can pollution affect marine life?

An older adult client presents with noted burning pain along the thoracic region with a tingling sensation and extreme sensitivity of the skin to touch, but there is no rash present at this time.