Hemoglobin is

A. a digestive enzyme.

B. a tiny nutrient carried in capillaries.

C. an oxygen-carrying pigment in blood.

D. part of the vertebrate nervous system.

What is living things and it's characteristics

A family can save over 50,000 gallons of water per year by recycling graywater." The most reliable source of this information is a plumber salesman scientific website journalist

Give one example of how environmental factors affect gene expression. Tysm ily; )

Amoeba and phytoplankton differ in that phytoplankton can

How many carnivores are there in this food web?

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?