Which group of observations provides evidence of biodiversity at genetic, species, and ecosystem levels?

Some rice plants withstand drought better than others and pass this trait to their offspring. Which category describes these differences within the population?

A reef survey records corals, sponges, fish, and mollusks. Which category describes the different kinds of organisms recorded?

An area of Palawan contains forests, rivers, and coral reefs. Which category describes this range of habitats and communities?

The sites were surveyed using equal areas, methods, and effort. Which site has the greatest species richness?

What is the relative abundance of narra trees in the survey, rounded to the nearest whole percent?

Thousands of individuals belonging to just one species are enough to establish that a habitat has high biodiversity.

Which finding would best support the claim that plant diversity helps the forest shown maintain productivity during drought?

Survivors of a crop disease produce offspring that also resist the pathogen in controlled tests. Which mechanism best explains resistance across generations?

Arrows run from food to its consumer. If grasshoppers disappear, which remaining organism is a direct food source for frogs?

After one insect-eating bird species disappears, others keep pest numbers stable. Why could losing more of these bird species later destabilize the ecosystem?

How do bees help many flowering crops produce seeds?

Spiders catch insects that damage crops in a Laguna farm. Which natural service does this illustrate?

Fungi and bacteria break down fallen leaves on a forest floor. How does this process support new plant growth?

How can protecting growing forests help limit atmospheric carbon dioxide?

Which region meets both formal requirements for a biodiversity hotspot?

A quarry removes part of a wooded slope in Quezon. Which process most directly explains a decline in organisms dependent on that forest?

Fish leave a coastal area after an algal bloom decays. Which measurement would best test whether a dead zone has formed?

Which collection plan best helps keep useful wild plants available for future generations?

Which resource group comes entirely from living organisms rather than mineral sources?