In which part of the digestive system does a chemical change of the food first occur? A. mouth B. esophagus C. stomach D. liver

William wanted to create a report on a geographical location with the greatest species diversity. Which ecosystem can consider for his report? the ocean a desert a tropical rain forest a coral reef

The moon was formed when an asteroid hit the Earth, and created a ring of debris in impact.

Milk contained which of the following macromolecules carbohydrates protein and lipids, protein and lipids, protein, lipids

Which of these provide endocrine functions for both males and females? Choose 3 correct answers. LH FSH Pituitary gland Placenta Testicles

How do moss leaves differ from leaves of more complex plants?

If you were in a boat as Hurricane Sandy passed overhead on October 28 at 4am, at what altitude would Polaris appear in the sky from your location (32°N and 73°W) ?

Which instrument would provide the most detailed information about the internal structure of a chloroplast

Staind yeast were added to a paramecium culture, and some of the yeast were ingested by the paramecia. this activity is most closely associated with which life function A) synthesis B) regulation C) nutrition D) growth

Which statement is true? Sediment can be any size. Sediment is only small particles of sand that settle out of the water. Sediment doesn't move from the place where it was formed. Sediment in the wind is too small to cause damage.

The small outpouchings that protrude from the intestinal lumen are called