The layer directly covering the heart is the

A diploid species has 2n=52 chromosomes if you found a monosomy in a member of this species how many chromosomes would it have?

See Figure 2. Looking at the heat circulation in the ocean, what might happen to it, if large amounts of cold water are added in the Polar Regions as glaciers melt?

Some bacteria are decomposers, which fill an important role in the food web. What would happen to an ecosystem without decomposers

What weather factor is also a measurement of energy held within the air? A. Humidity B. Pressure C. Temperature D. Wind

List 3 things that effect enzyme activity

Isn't this correct?! (I chose A). My teacher marked it incorrect. What is a phenotype? A. the physical or detectable traits of an organism B. a type of biological diversity caused by environmental factor that affects the organism C.

Which of the following is a reason why geographic range can decrease? A. environmental change B. reaction to another species C. human interaction D. all of the above

What effect does sympathetic nervous stimulation have on digestion? A. Diarrhea B. Inhibits digestion C. Enhances digestion D. Vomiting

What was a primary reason for the revived popularity of the Ku Klux Klan?

A behavioral adaptation is ... Give at least 2 examples