What are tears made of?

Why are people with dmd at a greater risk of repeated lower respiratory tract infections?

Which process is responisble for changing the composition of rock

The youngest rocks are found near the center of

Plants and animals that live in the ocean habitat must have adaptations which allow them to survive in very cold with a minimal amount of sunlight

Through which of the following will a light wave travel the fastest? A. glass wall B. water C. outer space D. air

Can energy be transferred from animal to animal

The more stomata the more water loss?

Why does it take a long time to develop a new variety of tomato? A. Changes in traits happen gradually, over many generations. B. Many plants resist change. C. Tomatoes cannot acquire new traits. D. A species cannot change over time.

Select the one true statement. Vacuoles store nutrients, water, and waste in animal cells. Plant cells can have chloroplasts but do not have a cell wall.

Using water more effectively A. Protects the environment B. Causes the loss of natural pollution filters C. Increases with contamination D. All of the above