Which statement describes a positive effect of dams?

O

A. They provide water for the irrigation of crops.

B. They impede fish migration and spawning.

C. They divert water from ecosystems.

O

D. They increase the sediment load of waterways.

How is ATP different from ADP

What is a currebt ecample that provides evidence of natural selection?

Sharpei dogs have wrinkled skin that they never fully grow into. The extra skin is produced because their DNA codes for an extra switch of the HAS2 protein.

When a plant cell, such as one from a peony stem, is submerged in a very hypotonic solution, what is likely to occur? when a plant cell, such as one from a peony stem, is submerged in a very hypotonic solution, what is likely to occur?

Explain Why Scientists Share Information with One Another

What are telomeres? What are telomeres? ""junk DNA"" present throughout the length of our chromosomes protein caps found on the ends of chromosomes DNA sequences which code for making proteins that regulate cell division regions of DNA at the end of

A plants can have either brown b. or red b. leaves. Brown is the dominant trait is a plane as a genotype Bb which best describes the plant. a. Homozygous with brown leaves. b. Heterozygous with red leaves c. Homozygous with red leaves. d.

Is the following genotype homozygous dominant, homozygous recessive, or heterozygous? Gg

As part of an experiment to measure decomposition rates of different materials, students put food scraps from the cafeteria in compost bin A and leaves and grass clippings in compost bin B for six weeks.

The arctic tundra can be found in