Newton extended Kepler's first law by showing that objects such as comets can also have orbits shaped like

For each pair of terms explain how the meanings of the terms differ. 1. diffusion and osmosis 2. active transport and passive transport 3. endocytosis and exocytosis

The dodo, a bird that lived on islands, became extinct in the 17th century. Dodo birds could not run fast or fly. Sailors hunted them for food. Settlers brought predators like pigs and monkeys, which ate the dodo birds.

You have two types of bread, three types of meat, and two types of cheese. How many different sandwiches can you make if each sandwich has one type of bread, one type of meat, and one type of cheese?

Which two terms best describe the inheritance of human blood types? A. incomplete dominance and codominance B. codominance and multiple alleles C. incomplete dominance and multiple alleles D. codominance and epistasis

Describe what scientists can learn about the past by studying fossils.

The polymerase chain reaction (PCR) is used to generate: multiple copies of a targeted region of DNA. a single copy of a targeted region of DNA. single copies of whole chromosomes. multiple copies of whole chromosomes.

Describe what happens in epistasis

What may prevent the detection of lupus anticoagulant in a plasma sample if the blood used for testing is not centrifuged for a sufficient time?

What is a substance that can be formed through the iconic bonding of an anion and a cation?

Which source of energy is normally used for short bursts of activity? lipids protein glycogen lactic acid