Difference between hydra, sponge and obelia

Transpiration is the evaporation of water from

How do you calculate the gradient?

The nurse instructs the client's spouse about how to cope with the client's anxiety

What do the following areas of scientific understanding have in common? the understanding of the structure of the Solar System the understanding of how traits are passed from parents to offspring the understanding of the building blocks of matter

Which of the following answers to this description: calibrate, measure, adjust, and observe, often working with a lead researcher.

Usually flowers contain more stamens than pistil. Why?

Choose all the answers that apply. Water: 1. can dissolve most substances 2. has a strong attraction to itself 3. is neither acidic nor basic 4. contracts when it freezes 5. heats up and cools down more quickly than land

A seismic station recorded the P-wave, but no S-waves, from an earthquake because S-waves were what?

In vertebrates, what joins the brain to the rest of the body? A. spinal cord B. medulla oblongata C. peripheral nervous system D. vertebral column

Flagship species are often the focus of successful conservation efforts. What are the advantages and disadvantages of this approach to biodiversity conservation? Do you think the advantages outweigh the disadvantages?