All of the alkali earth metals, Group 2, have two valence electrons. Which of these would represent the oxidation number of the alkali earth metals such as magnesium and calcium?

A) - 6

B) - 2

C) + 2

D) + 6

Why aren't all minerals gemstones?

Giraffes were the subject of debate in the early days of evolutionary theory. LaMarck believed in acquired characteristics, while Darwin believed in evolution by natural selection.

The random alignment of maternal and paternal homologous chromosomes during metaphase I is one of the ways genetic variability among gametes comes about.

This system relates to the structure and support of an organism. It is made of salts and proteins and found in vertebrate animals.

When can primary succession occur?

suppose you mix baking soda and white vinegar. what signs might indicate that a chemical change is occurring?

Which term means the release of a tendon from adhesions?

To produce 100% offspring with yellow pods and wrinkled seeds, what parental genotypes must a researcher use?

Which statement is NOT true of genetic drift? A) genetic drift creates greater diversity within a population B) population bottleneck and founder effect are two types of genetic drift C) the smaller the population, the greater the impact genetic

Which of the following statements about biodiversity is true? a. Changes to biodiversity always positively affect an ecosystem. b. Changes to biodiversity always negatively affect an ecosystem. c.