Oxygen relights a glowing splint. What does this tell you about the chemical properties of oxygen, compared to nitrogen?

In fruit flies, the allele for white eyes is recessive to the allele for red eyes. In a generation of fruit flies, 45 males with white eyes, 46 females with white eyes, 44 males with red eyes, and 47 females with red eyes are produced.

Which statements describe the Orion crew exploration vehicle? Check all that apply. It will replace the satellite Explorer 1. It will capture an asteroid to collect samples. It will have new and improved safety features.

What starts digestion?

List 2 plants that grow in the grass savanna? list 5 animals that live in the grass savanna?

How plate tectonics have changed the earth's surface over time

Blood clots form using which of the following components? Check all that apply. fibrin platelets blood clotting factors blood cells

Marys mother bought some beautiful blue flowering plants. she took very good care of the plants. she watered them, fertilized them regularly, and added lime to the soil to raise the pH from acidic to basic.

Which is an example of a behavioral adaptation? Birds migrating in the winter a ducks's webbed feet a polar bears thick fur a gazelle's ability to run fast

Which of the following is a synapomorphy linking dinosaurs and birds? a. Loss of teeth b. Furcula c. Small size d. Endothermy

What is the term used for the situation when a body rotation and it's revolution take the same time