Which best describes why heat pumps are reversible? A. They can heat and cool an indoor space. B. They involve a metal expanding or contracting against another. C. They combust and can also add coolant. D. They allow a piston to move up and down.

Which part of Earth most likely has the highest albedo value? smooth ocean ice when the Sun is at a 30-degree angle smooth ocean ice when the Sun is at a 15-degree angle choppy ocean water when the Sun is at a 30-degree angle choppy ocean water when

A blastocyst is a A. cluster of cells surrounding a developing egg in the uterus. B. membrane that surrounds and protects a growing embryo in the uterus. C. growth that can form in the wall of the fallopian tubes. D.

How does the sustainability of an ecosystem benefit from sexual reproduction? A - increased number of offspring B - increased variation of offspring C - large offspring D - faster reproduction

What type of organisms is made up of cells containing a nucleus?

Which type of reproduction, sexual or asexual, is best suited for organisms that live in a place where environmental conditions are stable

Penny has been diagnosed as suffering from bulimia nervosa. it is most likely that she:

Which term describes the class of molecules that includes starch and glycogen? A. Lipids B. Carbohydrates C. Nucleic Acids D. Proteins

A 60-year-old woman has just been diagnosed with heart failure and her primary care provider is describing the concept of adaptation. which compensatory mechanisms may have masked the client's heart failure? select all that apply.

What are two possible genotypes or the offspring?

A student notices that the saucer below a coffee cup becomes warmer after coffee is poured into the cup. Energy was transferred from - the cup to the saucer by conduction. the saucer to the cup by conduction. the cup to the saucer by convection.