What characteristics of living things best explains why some North American birds fly south for the winter?

Match each statement below to the correct scientist. used meat in three different sets of jars to show that living things can only come from living things used a map to show that cholera was caused by contaminated water and not poisonous vapors

The nuclear lamina is an array of filaments on the inner side of the nuclear membrane. If a method were found that could cause the lamina to fall into disarray, what would you expect to be the most likely consequence?

What are the two phases during which tha moon appears as only a tiny silver

Plants can be identified by specialized structures in their cells, let's take a look at an example of a specialized plant cell, chloroplasts: a) What part of the plant would you expect to have the highest number of chloroplasts (leaf, stem, roots) ?

What is the best source of vitamin c

Earthworms like the one scene here 11 saw your bunny wondered how changes in the moisture content of the Soil would affect the movement of the worms he want to design an experiment to test his idea what would be Benny's manipulative variable in this

Organizational members tend to experience metamorphosis before they experience the encounter stage of assimilation. Group of answer choices True False

Which are deuterostomes? A. Humans B. Slime molds C. Fungi D. Flowering plants

Because of the Doppler effect, sounds coming from a moving source Question 6 options: A seem louder than if the source were not moving. B are of a higher frequency if the source is moving away from the observer.

Which of the following is a need of most plants? A. To release water through their leaves. B. To take up oxygen from the environment. C. To capture sunlight to perform photosynthesis. D. To release carbon dioxide to the environment.