A response to a stimulus that is inborn and that an animal performs correctly the first time.
What is instinct?
Fertilized egg
What is a zygote?
Different forms of a gene are called...
What are alleles?
Decomposers breakdown the remains of dead organisms; some carbon is released into the soil; some into the air as CO2. Living organisms give off carbon dioxide and producers use it in photosynthesis. Consumers eat plants containing carbon.
What is "how is carbon cycled between organisms and the environment?"
It is considered as a nonrenewable resource.
What is natural gas?
A plant's growth response toward or away from a stimulus
What is tropism?
The way an organisms reacts to changes in its internal conditions or external environment
What is the behavior?
An insect such as the butterfly goes through the process of "blank" as it grows and develops into an adult
What is metamorphosis?
What consumers release as they break down food to obtain energy
What is carbon dioxide and water?
Directly involved in transforming the remains of organsims nito fossil fuels
What is pressure?
A series of events in which one organism eats another and obtains energy and nutrients
What is a food chain?
Transferring pollen from male reproductive structures to female reproductive structures in plants
What is pollination?
"Blank" inheritance refers to any trait that is controlled by more than one gene.
What is polygenetic?
Rain, hail, and snow are all examples of...
What is precipitation?
An essential characterisric of a mineral.
What is crystal sturcture?
The regular, seasonal journey of an animal from one place to another and back again.
What is migration?
The number of individuals in an area of a specific size
What is the density?
Cooperative behaviors can "blank" an animal's chances of surviving to reproduce.
What is "increase?"
Mushrooms and bacteria are important...
What are decomposers?
Rather than increasing at a constant rate, human population growth in recent decades has increased more and more rapidly over time. This rate of change is called...
What is exponential growth?
A period when an organism's growth or activity stops
What is dormancy?
A plant's response to seasonal changes in the length of night and day
What is photoperiodism?
Behavior patterns that are related to how animals reproduce.
What are mating systems?
In one form of nitrogen fixation, the "blank" energy of "blank" splits nitrogen molecules into atoms.
What is electrical and lightning?
Fossil fuels are "blank" resources that are "blank" distributed on Earth.
What is nonrenewable, unevenly?