A biological abnormality of the red blood cells, referred to as sickle-cell anemia, is also an adaptive response to what disease found primarily in Central and West Africa?

Enumerate two paths that carbon dioxide can take through the carbon cycle.

Which is true of the thylakoids? have a small surface area hold a small number of electron-transporting molecules are surrounded by grana contain two photosystems.

A gas has an initial volume of 2.4L at a pressure of 1.5 atm and a temperature 273K. The Pressure of the gas increases to 4.5 atm, and the temperature of the gas increases to 313k. What is the final volume of the gas

Why do we never see the dark side of the moon? A. Synchronous Rotation B. Over the millennia, the moon has become "locked" into a special kind of motion around the earth. C. The moon rotates on its axis at the same pace as it revolves around earth.

What is the term for the net force directed toward the center of an object's circular path? a. circular force c. centripetal force b. centrifugal force d. orbital force Answer:c. centripetal force

Why do plants have a greater disadvantage in unpredictable environments than animals?

The nurse is planning care for an older client with respiratory acidosis. Which intervention should the nurse include in this client's plan of care? A) Administer prescribed intravenous fluids carefully. B) Administer intravenous sodium bicarbonate.

Which layer of the sun is hottest

Transport protein that provides a tube-like opening in the plasma

While collecting samples of rocks, a scientist collects several that contain fossils. What is most likely the type of rock in the scientists sample? a. Metamorphic Rock b. Igneous Rock c. Sedimentary Rock d. Mineral Rock