Cells and Organisms
What is a cell
the smallest unit that can carry out all of the functions of life
What is the human body
The human body is a complex system made up of interacting parts
What is evolution
Evolution is the change in inherited traits that occurs in a group of organisms over multiple generations.
What is biodiversity
Biodiversity is the variety of species in an ecosystem
How do humans use artificial selection
Humans use artificial selection to develop organisms with useful or desirable traits
What are unicellular organisms are made up of
They are made up of one cell
What is a tissue
A tissue is a group of similar, specialized cells
What are inherited traits
Inherited traits are those that are passed from parents to offspring via genes.
When does Biodiversity decrease
Biodiversity decreases when species go extinct, or die out
What are advantageous traits
traits that make an organism more likely to survive and reproduce in its environment
What are multicellular organisms are made up of
They are made up of multiple cells
What is the human body made up of
The human body is made up of multiple organ systems
How is evolution made
Evolution is made possible by genetic variation, or gene differences, in a population
When does extinction happen
Extinction often happens when organisms can no longer survive because of changes to their ecosystems
What is an disadvantageous traits
a trait that makes an organism less likely to survive and reproduce in its environment
Where do all cells come from
What is an organ made up of
An organ is made up of multiple types of tissues
What is genetic variation
Genetic variation causes organisms within a population to have a range of different traits.
A decrease in biodiversity can be the result of
Human actions
What does natural selection cause
Natural selection also causes disadvantageous traits to become less common in a population.
How are new cells made
New cells are made through a process called cell division
What is an organ system
An organ system is a group of organs that work together to carry out complex tasks in the body
What is a source of genetic variation
One source of genetic variation is sexual reproduction
What happens when an ecosystem loses Biodiversity
When an ecosystem loses biodiversity, it doesn't function as well
How is artificial selection is similar to natural selection
During both processes, traits (and their underlying genes) change in a group of organisms