The heart along with the rest of the circulatory system could be compared to

A major transportation system in a city

A chemical manufacturing plant

The police department in a city

A recycling plant

Can your body make antibiotics for pathogens thaf you have never been in contact with? Why or why not?

Word that means to set free as in freeing slaves

Which coastlines most closely match each other and are, therefore, used as evidence to support Wegener's theory?

What kind of density current is caused by a muddy, rapidly flowing mixture of sediment and water.

Sediment provides the ideal conditions for? A. Photosynthesis B. Plant Growth C. Phytoplankton D. Zooplankton

Cameron is collecting data to determine the time of completion for each stage of germination in seeds. He is using bean seeds for his investigation and recording his results. He repeats his data collection many times to obtain reliable results.

Which human action has not lead to significant changes in Earth's biomes?

Which two characteristics of living things do viruses exhibit?

You are studying the source of new virus that has recently infected humans. You suspect that the virus was transferred from other primates (they exhibit a similar infection), specifically chimpanzees, gorillas, or orangutans.

According to the diagram liverworts are