An airplane is flying through the air at a constant velocity. which force is greater, the drag (the force that moves an object forward) or the thrust (force that moves the opposite direction) ?

How does the trachea work with other systems to keep the body healthy?

Which type of cells contain dna

What problem is most directly caused by burning waste? A. Groundwater pollution B. Air pollution C. Lake pollution D. Ocean pollution

Explain our current knowledge of biology.

For air to enter the lungs (process of ventilation), the intrapulmonary pressure must be less than atmospheric pressure so air can be pulled inward. Select the movement of respiratory muscles that makes this happen during inspiration.

The connecting piece of a sperm is packed with what that produces energy?

Which organelle provides a protective covering to the cell and controls what enters ande leaves? A. lysome B. cell membrane C. cytoplasm D. ribosome

What is dominant lethal and recessive lethal?

Long-term effects of alcohol use: - diminished function - fewer white blood cells the long-term effects of alcohol use listed above match which body system? a. immune system b. nervous system c. digestive system d. cardiovascular system

Interestingly, even though hemophilia in the royal families began in England, they were actually the only one of these four families to NOT be affected by it.