Ecosystems
The food of any animal can be traced back to what?
Plants.
Newly introduced species can damage the balance of an ecosystem.
True.
Why does the sun appear larger than other stars?
It is closer to earth.
If an accident occurs, what should you do?
Immediately report it to the teacher.
A variety of hazards result from what?
Natural processes.
Which two organisms break down dead organisms (both plants or plants parts and animals) and therefore operate as “decomposers?"
Fungi and Bacteria.
Stars range in a small amount based on their distance from Earth.
False.
What are Earth’s major systems?
The geosphere, hydrosphere, atmosphere, and biosphere.
What should you never use?
Broken equipment.
Humans cannot eliminate the hazards but can take what to reduce their impacts?
Steps.
Which part of the ecosystem can newly introduced species can damage?
Balance.
Organisms can survive only in environments in which their particular needs are met.
True
Nearly all of Earth’s available water is found where?
In the ocean.
Before starting any lab activity, what should you do?
Listen and follow instructions.
What are three types of natural disasters?
Earthquakes, tsunamis, and volcanic eruptions.
Organisms are related in _____ in which some animals eat plants for food and other animals eat the animals that eat plants.
Food webs.
A healthy ecosystem is one in which multiple species of different types are each able to meet their needs in a relatively stable web of life.
True.
Most freshwater found in which two places?
Glaciers and underground.
What is the appropriate wear for labs?
Goggles, aprons, closed-toe shoes, and gloves.
Energy and fuels that humans use are derived from what?
Natural resources.
Multiple species of different types are each able to meet their needs in a relatively stable web of life in what kind of ecosystem?
Healthy.
Decomposition eventually restores (recycles) very little materials back to the soil.
False.
What does the ocean support a variety of?
Ecosystems and organisms, shapes landforms, and influences climate.
When you are about to use an equipment, what should you do first?
Inspect for weaknesses, cracks or damage.
Some resources are _____ over time, and others are not.
Renewable.