Common Assessment Review

Natural selection

• organisms better adapted to their environment tend to survive and produce more offspring

• process used by humans to develop new organisms with desirable characteristics

Selective breeding

• organisms better adapted to their environment tend to survive and produce more offspring

• process used by humans to develop new organisms with desirable characteristics

Which is an example of selective breeding?

• A giraffe's long neck.

• Clipping a horse's tail so it's not too long.

• Training a horse to run faster.

• Cross breeding a labrador retriever with a poodle .

A dichotomous key for trees is provided. Hikers found a tree that has large brown cones and single sharp needles. What species of tree have the hikers found?

• Juniper
• Pine
• Spruce
• Fir

This diagram shows how energy flows through an eco-system. What is the first source of energy in this pyramid (aka producers)?

• sharks and large birds

• algae, plankton and seagrass

• herbivorous fish, crustaceans and sea urchins

• seals and carnivorous fish

In the energy pyramid here, which organisms have the most energy available?

• Producers
• Carnivores
• Herbivores
• Top Predator

In the food web shown, the snail would be considered...

• primary consumer
• secondary consumer
• tertiary consumer
• producer

What do the arrows in a food web represent?

• mass

• energy flow

• matter

• organisms

What do the arrows in a food web represent?

• mass

• energy flow

• matter

• organisms

In the food web pictured here, flies provide energy for...

• Dragonflies, Turtles, & Frogs

• Slugs & Fish

• Water Weeds & Algae

• Snakes, Frogs, & Kingfishers