Exam 3: Biodiversity and Evolution

Mutations are essential for biological evolution to occur.

Labeling -On the accompanying temperate-zone lake, choose the zone primarily inhabited by invertebrates, such as decomposers, that can live in the low oxygen.

Genetic diversity, species diversity, and ecological diversity, and functional diversity are all a part of biodiversity.

Lentic and lotic freshwaters are distinguished by

Briefly explain two reasons why coastal zones have a higher net primary productivity than abyssal zones.

The number or variety of species found in a particular area is called

Geological processes, catastrophes, and climate change affect natural selection.

Lakes or areas of the ocean that have a small supply of nutrients, and thus low productivity, are referred to as

Biomes are distinct regions separated from one another by drastic climate and vegetative differences.

Which of the following are aquatic life zones in rivers and streams?

In speciation, two species breed to form one new species.

Some of the offspring of a beetle develop spots. These spots make it harder for birds to see the beetles and thus, the spotted beetles tend to survive and produce more offspring than the beetles without spots. This heritable trait is called a(n) ____________________.

Labeling -On the accompanying temperate-zone lake, choose the zone close to shore in which light reaches all the way to the bottom.

Aquatic ____________________ is determined by environmental factors including temperature, sunlight, dissolved oxygen, and available nutrients.

The aquatic ecosystem with the world's highest net primary productivity per unit area are found in the