Populations & Ecosystem

Science 7th grade

Observation

Observation

Information obtained through the senses

Population

A group of individuals that belong to the same species and live in the same area

Organism

A living thing

Species

The same type of organism

Habitat

Place where organism lives

Model

A representation of an object or event

Inference

A conclusion reached on the basis of evidence and reasoning

Clutch

A group of eggs

Community

All the interacting populations in a specified area

Ecosystem

A system of interacting organisms and nonliving factors in a specified area

Biotic

Living organisms and products of organisms

Abiotic

Nonliving

Population Study

An experiment in which the observer collects data over time for one population in an ecosystem

Observational study

An experiment in which the observer collects data over time without interacting with the area of study

Controlled Experiment

An experiment in which the observer standardizes all but one variable to measure results (for example: choosing the fertilizer plants get and seeing how tall they grow)

Biome

A group of ecosystems that share similar climates and typical organisms

Ecosystem services

All the processes through which natural ecosystems help sustain human life: -provisioning, regulating, cultural, and supporting.

What does the population of milkweed bugs need to survive in a classroom?

Water, shelter, food, air, female/male, sunflower seeds.

How do milkweed bugs reproduce and grow?

Male/female, mating, laying eggs

What is the relationship between individuals, populations, communities, and abiotic factors in an ecosystem?

more than one individual is a population. More than one population is a community. And a community and abiotic factors make up an ecosystem.

How is the milkweed bug habitat similar to and different from Jane Goodall population study?

They were both making observation, ours is a controlled set up, Jane Goodalls wasn’t not in a controlled set up.