the milky way is held together by a blackholes gravitational force. since the stars near this blackhole move at a high spped what can you infer about the blackhole

Charlie contracted Lyme disease when he was bitten by a tick, which is a small spider-like animal. The tick carries harmful bacteria that was released into Charlie's blood. Which list best classifies the causes of Lyme disease?

A biologist is studying the genetics of a particular species of plant. He knows that one plant may contain hundreds of individual seeds, each of which is the result of a separate fertilization event.

What role does nitrogenous bases have in DNA and RNA

In his analysis of different species' DNA, E. Chargaff discovered the base-pairing rules of DNA. 1.) Chargaff's rules state: The amount of adenine is equal to? and the amount of cytosine is equal to?. 2.

4. The greenhouse gas, methane, is released by cattle as a product of their metabolism. What effect would an increase in cattle ranching be expected to have on climate? a. increased dry periods b. increased temperatures c. increased precipitation d.

Polydactylism is a dominant trait that results in extra fingers and toes in humans. A polydactyl man marries a woman with 10 fingers and toes. They have a child that has a normal number of digits.

Why are some sediments smaller than others

Ethanol is produced during what cycle or fermentation

Explain briefly why there is a limitation on how big a cell can be. Include in your explanation the relationship between a cell's size and its surface area and how this affects what the cell can do.

Which effect is most likely caused by nondisjunction during meiosis? A. an extra chromosome B. an increase in nuclei C. increased survival benefits from traits D. only two types of nitrogenous bases