Which process requires more energy from the plant moving water up through the xylem or moving nutrients down through the phloem?

One dangerous consequence of very-low-calorie diets is that they increase the individual's risk for a condition in which the blood levels become acidic. this is known as

What controls all the activities of the body

How do atomic mass and atomic number compare for helium? look up a periodic table to see the square for helium. the atomic mass is greater. the atomic number is greater. the atomic mass and atomic number is qual.

Which of the following are the components of a neuron brain, spinal cord, and vertebral column dendrite, axon, and cell body sensory and motor cortex, medulla, and sheath

If you were working for a pharmaceutical company as part of a drug discovery team, which of these enzyme inhibitors would you suggest as a productive avenue for drug development?

Sonya had leukemia as a child and had to undergo numerous bouts of chemotherapy. The chemotherapy always made her nauseous. As she underwent a year of treatment, the waiting room started to make her nauseous. The chemotherapy is th

What is butterfly sanctuary?

How does the structure of a chloroplast enable it to build up a concentration gradient of protons?

What can cause changes in DNA sequences? A. mutations B. genetic drift C. gene flow D. proteins

When the double stranded DNA helix is unwound, two single strands of DNA are formed. These strands have to be stabilized because their hydrophobic bases are exposed to water. The proteins that stabilize the two single strands are called