The division of organisms into groups, or classes, based on specific characteristics.
What is classification?
The smallest functional and structural unit if living organisms.
What is a cell?
The genetic material of living organisms and is located in the chromosomes of each cell.
What is DNA?
The changing of species over time.
What is evolution?
The study of the interactions of living organisms with one another and with their environment.
What is ecology?
The last level of classification.
What is species?
It is found in a eukaryotic cell. a membrane-bound organelle that contains the cell's DNA and that has a role in processes such as growth, metabolism, and reproduction.
What is a nucleus?
A molecule that is present in all living cells and that plays a role in protein production.
What is RNA?
A characteristic that improves an individual's ability to survive and reproduce in a particular environment.
What is an adaptation?
Living factors in an environment.
What is biotic?
The science of describing, naming, and classifying organisms.
What is taxonomy?
The body system that works with the skeletal system to help you move.
What is the muscular system?
A cell organelle composed of RNA and protein; the site of protein synthesis.
What is a ribosome?
A group of organisms that are closely related and can mate to produce fertile offspring.
What is a species?
Nonliving part of the environment, including water, rocks, light, and temperature.
What is abiotic?
The aid that is used to identify organisms and that consists of the answers to a series of questions.
What is a dichotomous key?
The body system that pumps blood throughout your body.
What is the cardiovascular system?
A change in the nucleotide-base sequence of a gene or DNA molecule.
What is a mutation?
The trace or remains of an organism that lived long ago, most commonly preserved in sedimentary rocks.
What is a fossil?
A group of organisms of the same species that live in a specific geographical area.
What is a population?
One animal that is in the species category.
What is a house cat?
The body system that breaks down the food you eat into nutrients that your body can absorb.
What is the digestive system?
The four types of RNA bases.
What is adenine, thymine, cytosine, and guanine?
A historical sequence of life indicated by fossils found in layers of the Earth's crust.
What is a fossil record?
All the populations of species that live in the same habitat and interact with each other.
What is a community?