Life and Science
This science is the study of life.
What is biology?
This is the study of interactions among organisms and their environment.
What is ecology?
This model shows many connected feeding relationships and is more realistic than one energy pathway.
What is a food web?
Different populations living and interacting in one area form this; an interaction that benefits both species is this.
What are a community and mutualism?
These five abiotic factors help shape aquatic ecosystems: salt level, water depth, sunlight, temperature, and nutrients.
What are salinity, depth, light, temperature, and nutrients?
All living things are made of one or more of these basic units.
What are cells?
Put these levels in order from smallest to largest: organism, population, community, ecosystem, biome, and biosphere.
What is organism, population, community, ecosystem, biome, biosphere?
In the food chain grass to mouse to snake, this organism is the primary consumer.
What is the mouse?
This gradual change in a community's species composition occurs over time.
What is ecological succession?
Cold, fast-moving headwater streams often have more of this gas, while lakes and ponds are this type of water ecosystem.
What are dissolved oxygen and standing water?
Sweating when body temperature rises is an example of maintaining this stable internal condition.
What is homeostasis?
Sunlight is this type of nonliving ecosystem factor.
What is an abiotic factor?
About this percent of energy passes from one trophic level to the next; from 10,000 units, primary consumers receive about 1,000.
What is 10 percent?
One begins without soil, while the other begins after a disturbance where soil remains.
What are primary succession and secondary succession?
One zone lies between high and low tide; these tiny producers form the base of many open-ocean food webs.
What are the intertidal zone and phytoplankton?
A plant bending toward light is an example of this reaction to an environmental change.
What is a response to a stimulus?
One is where an organism lives; the other is its role and use of resources.
What are habitat and niche?
This process moves carbon dioxide from the atmosphere into plants.
What is photosynthesis?
These pioneer species break down rock and help begin soil formation.
What are lichens?
One ecosystem is harmed by warming, pollution, and acidification; the other has saturated soil and stores water.
What are coral reefs and wetlands?
Name these four science terms: a testable explanation, a well-supported explanation, a conclusion based on evidence, and evaluation by other scientists.
What are hypothesis, scientific theory, inference, and peer review?
Grass makes its own food, while a rabbit eats grass. Name the grass's role and the rabbit's consumer type.
What are producer and herbivore?
Name the consumer that eats both plants and animals and the organism that breaks down dead material.
What are an omnivore and a decomposer?
Latitude changes sunlight angle and intensity. Biomes use temperature, precipitation, and vegetation. Name the biomes for permafrost; conifers and long winters; grasses and fertile soil; and warm wet layered vegetation.
What are tundra, boreal forest, temperate grassland, and tropical rain forest?
Freshwater and saltwater mix in this productive nursery habitat. Also, name the levels formed when abiotic factors are added to a community and when similar ecosystems are grouped.
What are an estuary, an ecosystem, and a biome?