How can a hormone be used by one organ activate the expression of a specific gene in another organ?

What is an inanimate object that is not composed of cells. It may be made of atoms, molecules, crystals, but not cells?

n algae, cyanobacteria, and plants, chlorophyll a absorbs all colors of light except for A) red. B) green. C) blue. D) yellow.

To observe a small living organism a scientist might use a

Which statement best describes a physical change? O Changes can occur to certain chemical properties of the substance, but the overall shape of the substance will remain the same O Changes can occur to certain physical properties of the substance,

Which of the following is a negative consequence of aquaculture? A. Protein-rich food is provided to billions of people. B. A Pressure on wild fish populations is reduced. C. Excessive amounts of nitrogen and phosphorus can leak from the location. D.

Is a flower a monocots and dicots

What is diffusion?

Which of the following genetic changes would be passed from parent to child? A. A translocation in a nonhomologous pair of chromosomes in a liver cell B. A mutation in a skin cell caused by UV light C. The addition of a chromosome in an egg cell D.

Using a broom to clean sidewalks and driveways is a way to reduce water pollution

From which location does seafloor spreading originate? mid-ocean ridges edges of continents deep-ocean trenches underwater volcanoes