Chapter 1 + 2 end of chapter assessment

Which best describes a scientific theory?

• A possible explanation of an event

• A set of moral values or principles

• A description of the relationship between objects

• An explanation supported by many experiments over time

Which of these levels of organization includes all the other levels?

• Community

• Ecosystem

• Individual

• Population

Which would be an abiotic factor for a tree in the forest?

• A caterpillar eating its leaves

• Wind blowing through its branches

• A bird nesting in its branches

• Fungus growing on the roots

The insect in the photo above is gathering pollen and nectar for food, but at the same time is aiding in the plant’s reproduction. What does this relationship demonstrate?

• Predation

• Commensalism

• Mutualism

• Parasitism

What term best describes the bee’s role of gathering pollen?

• Niche

• Predator

• Parasite

• Habitat

Which statement is true about energy in an ecosystem?

• Energy for most ecosystems originate from the sun

• Energy most often is released as a light from an ecosystem

• Energy flows from heterotrophs to autotrophs

• Energy levels increase toward the top of the food chain

What does the illustration represent?

• Food web

• Food chain

• Ecological pyramid

• Pyramid of energy

What is the difference between an observation and data?

• An observation is seen, data is recorded.

• Data is seen, observations are recorded.

• There is no difference between observation and data.

• The observation is made based on data.

The difference between a control group and experimental group...

• There is nothing changed about the control group, while the experimental group observes change.

• There is nothing changed about the experimental group, while the control group observes change.

• There is no difference between control group and experimental group.

What word means "production of offspring"

• Reproduction

• Homeostasis

• Independent variable

• Movement