Which term names the organisms in an ecosystem?

Rainfall and air temperature belong to which group?

During a schoolyard treasure hunt, which pair should learners record as biotic?

In the Ifugao Rice Terraces, which component belongs on a biotic list?

A garden journal records several influences on plant growth. Which entry describes a biotic influence?

Which rainforest feature belongs on an abiotic list?

What biotic change could leave rabbits with less grass to eat?

A class studies a Philippine coral reef. Which abiotic condition could affect its health?

Which biotic factor can help forest flowers produce seeds?

To investigate an abiotic influence on where river fish occur, which feature should Ben measure?

Which desert component would belong in a collection of biotic examples?

An insect-eating bird catches a caterpillar on a rice plant. What role does the caterpillar have in this interaction?

To track a biotic cause of reduced pond clarity, what should Liza observe?

Marine algae obtain energy to make food from which abiotic factor?

Rice seedlings grow close together. What interaction may occur as they obtain water and nutrients?

In a lichen, a fungus shelters an alga, and the alga supplies food to the fungus. What interaction occurs between them?

Paolo investigates whether aphids affect seedling growth. Which comparison is fairest?

Which process in a seedling is most directly reduced when it receives too little light?

Matching seedlings receive equal water and light but grow in sandy or clay-rich soil. What measurement would best compare how soil type affects their growth?

A researcher wants to compare acidity at different places in Taal's crater lake. Which measurement is needed?