I need an explanation of a light year?

What is the most likely result in the loss of genetic variation? A. Mutations B. Genetic Drift C. Migrations

3. Some plants grow better if bone meal (ground-up bones) is spread around their roots. What does bone meal supply to plants that makes them grow better? a. Energy b. Minerals e. Vitamins d. Carbon dioxide e. water

How are rocks that contain oil similar to a sponge?

Most organisms (including you) break down organic compounds to obtain energy and nutritional building blocks. In contrast, chemolithotrophs are prokaryotes that obtain energy through the oxidation of inorganic compounds.

A skin cell should generate an exact copy of itself. Through which process would this occur? meiosis telophase fertilization mitosis

Which of the following are examples of ways humans and plants have coevolved? Pick all that apply A. Humans have bred plants to use as food B. Plants provide a source of nitrogen C. Humans aid in pollinating plants D.

By what mechanism does PI-3 phosphate promote activation of protein kinase B (PKB) ? a. recruiting PKB to the plasma membrane b. recruiting the activating kinase PDK1 to the plasma membrane c.

What is the definition of "Mass"?

Which of the following is a correct statement? Select one: a. If you want to make a cDNA library, it doesn't matter which tissue you isolate the mRNA from. b.

In fruit flies long wings (W) are dominant to short wings. What is the phenotype of the known parent