Ecology
What organisms are responsible for recycling nutrients from dead plants and animals back into the soil?
Decomposers
There are several different organisms that make up a pond ecosystem. One of these organisms are dragonflies. Along the pond, an ecologists counts 35 dragonflies. These dragonflies represent a _______________.
population
What is the simple sugar with the molecular formula C₆H₁₂O₆ that acts as the primary source of energy for living cells and a key product of photosynthesis?
Glucose
An organism that creates its own food.
Producer
An organism that cannot produce its own food and must eat others for energy.
Consumer
A _________ population means the rate of births and deaths are equal.
stable
Apart from sunlight, what are the two chemical reactants necessary for photosynthesis?
Carbon dioxide and water
True or False: Organisms in a consumer population make their own food through the process of photosynthesis
False
Matter that makes up the living organisms in an ecosystem.
Biotic factors
A population that is eaten for food is called a resource population.
Cod eat scallops and herring. Seals eat herring and dogfish.
Identify a resource population of the seals.
Herring or dogfish.
Plants convert carbon dioxide into __________, which is essential for living organisms to breathe and plants ensure we never run out of it.
oxygen
The arrows in a food web represent the transfer of ____________.
An environment where living and nonliving things interact is called an ______________.
ecosystem
Name a resource that organisms typically compete over.
Food, water, shelter, or mates
____________ are the organelles that exist only in plant cells. Photosynthesis takes place in this organelle.
Chloroplasts
Owls and mice have a relationship where owls are the predator and mice are the prey. What would happen to the population of owls if the mice were suddenly to go extinct?
The population of owls would decrease or die out
Identify two abiotic factors in our ecosystem.
Rocks, air, soil, temperature, water
A population of rabbits lives in New Jersey. Over 25 years, the size of the rabbit population increased. What best explains the increase in the size of the rabbit population?
More rabbits were born than died
The ______ is the part of the plant where majority of chloroplasts are located and is recognized as the site of photosynthesis
leaf
Say the equation of photosynthesis using chemical symbols.
CO2 + H2O + sunlight --> C6H12O6 + O2