Life Cycle/Human Growth
Environmental Destruction
Simple Electrical Circuits
Our Changing Environment
Interrelationships
100

The final stage in the human life cycle is ______________.

Answer: old age (or elderly)

100

______________ is the term for the heating of the Earth due to trapped heat in the atmosphere.

Answer: Global warming

100

The ______________ carries electric current from one component to another.

Answer: wire

100

Building roads or houses in natural areas can lead to ______________ loss.

Answer: habitat

100

Plants, animals, fungi, and bacteria are all considered ______________ factors in an ecosystem.

Answer: biotic

200

In ______________ metamorphosis, there are only three stages: egg, nymph, and adult.

Answer: incomplete

200

Burning fossil fuels contributes to the buildup of ______________ gases in the atmosphere.

Answer : Greenhouse

200

A circuit with a break or gap that prevents current from flowing is called an ______________ circuit.

Answer: open

200

A local wetland may dry up due to prolonged ______________ or climate change.

Answer: drought

200

When two organisms live together and interact regularly, it is called a ______________ relationship.

Answer: symbiotic

300

The ______________ stage is when the insect transforms inside a chrysalis.

Answer: pupa

300

Repeated wave action can damage underwater structures like ______________

Answer: coral reefs

300

Materials like rubber and p______________ are good insulators.

Answer: plastic

300

A decline in bee populations affects P______________, which can reduce crop production.

Answer= Pollination

300

When two animals live in the same area and eat the same food, they are in C______________.

Answer: competition

400

A balanced ______________ provides the nutrients necessary for proper growth.

Answer: diet

400

Lava from a volcanic eruption can create new ______________ over time.

Answer: land

400

D______________ cords or plugs should be replaced immediately.

Answer: Damaged

400

If top predators are removed from an ecosystem, the population of ______________ animals may grow too large.

Answer= Prey
400

Birds building nests in trees without harming the trees is an example of ______________.

Answer: commensalism

500

______________ health helps support emotional and cognitive development.

Answer: Mental

500

Sudden shaking of the Earth's surface is caused by movement of ______________ plates.

Answer: tectonic

500

Water can be a conductor if it contains dissolved S______________.

Answer: salts

500

The introduction of new species into an area is known as ______________ species invasion.

Answer: invasive

500

If one species outcompetes another, the weaker species may have to ______________ or die out.

Answer: migrate