What happens at each step of the dichotomous key

Material 1 Material 2 Material 3 Cotton Glass Cotton became negatively charged. Wool Glass Glass became positively charged. Rubber Aluminum Aluminum became positively charged. Rubber Cotton Rubber became negatively charged.

Earth's organisms require a constant supply of energy to meet their needs. Describe where most of this energy initially comes from and how it flows through the organisms as it moves through food webs and energy pyramids.

After suffering an accidental brain injury, Kira has difficulty walking in a smooth and coordinated manner. She has probably suffered damage to her a. corpus callosum. b. hypothalamus. c. amygdala d. cerebellum.

During which part of the cell cycle is the duplicated genetic material within the nucleus of a parent cell separated to create two daughter cells? a. mitosis b. meiosis c. cytokinesis d. DNA synthesis

What are the four types of RNA and how do they function?

Most reptiles and all birds are, meaning that their young develop in fertilized eggs laid outside the mother's body. in contrast, most mammals are, meaning that their young develop inside the mother's body.

Which word identifies the hanging icicle-shaped formations in caves that are created by deposition? sandbars sinkholes stalactites stalagmites

List the 5 things that plants must have/do to survive on land.

A scientist is observing elephants in Asia. He notices that a specific species of moth lands on the faces of the elephants. On closer observation, he sees that the moths irritate the eyes of the elephants and then drink the tears that emerge.

How can hypotheses best be tested? A. by asking questions B. through experimentation C. by forming an opinion D. through technology