Ecosystems and Population Dynamics

Miss Patty introduces a science lesson on populations and resources, focusing on the study of living organisms and ecosystems. The lesson features Dr. Kelly Robinson, a marine ecologist specializing in jellies, who explains the importance of understanding jelly populations and their role in marine ecosystems. Students are encouraged to use digital models to explore these concepts and investigate the factors affecting population changes.

What materials are recommended for the lesson on 'Populations and Resources'?

• A laptop and headphones

• A pencil or pen and some paper

• A calculator and ruler

• A textbook and highlighter

What is the primary focus of Dr. Kelly Robinson's research?

• The behavior of dolphins

• The migration patterns of birds

• The study of jellyfish populations

• The growth of coral reefs

Why are jellies considered important in marine ecosystems?

• They clean the ocean floor

• They help in coral reef formation

• They are both prey and predators

• They are a major source of oxygen

What has been observed about the moon jelly populations in the Arctic Ocean?

• They have migrated to warmer waters

• They have dramatically increased

• They have remained stable

• They have decreased significantly

What is an ecosystem?

• A collection of different species of plants

• All living and nonliving things in a particular area

• A large body of water with marine life

• A group of similar organisms living together

What tool is used to study ecosystems and populations in the lesson?

• A physical model

• A digital model

• A telescope

• A microscope

What feature does the digital model offer to study populations?

• It simulates human activities

• It provides a food web overlay

• It allows users to change weather conditions

• It predicts future population trends

What behavior was observed in the digital model regarding green leaves?

• They move around frequently

• They change color

• They reproduce on their own

• They hunt for food

What was a common observation about the organisms in the digital model?

• They communicate with each other

• They form large groups for protection

• They reproduce and are preyed upon

• They all migrate to new areas

What is a key factor in understanding population changes?

• The temperature of the environment

• The number of scientists studying them

• The color of the organisms

• The birth and death rates within the population