Which organism has a central brain? Flatworm, hydra, sponge, fish?

Which is the most likely reason that stem cell research is controversial?

The five body functions that monitor homeostasis

Which process is found only in autotrophs? A glycolysis B photosynthesis C citric acid cycle D cellular respiration

Which type if tissue is not readily repaired if damaged

A car travels 87.96 miles in 8.73 hours. what was the speed of the car

What place are sloths found?

In a solution of salt and water, which component is the solute? a. salt b. water c. beaker d. oxygen c

What are the two types of warm air masses that influence the weather in north america name and explain how they typically affect the weather

Which word describes an artificial pond with raised edges used for agriculture A) shaduf B) paddy C) aqueduct D) Chinampa

Why is dark matter difficult to measure? A) Because it does not exist in our galaxy. B) Because it disappears when it encounters ordinary matter. C) Because it creates so much heat it melts any instruments invented so far.