Life Science 1
cells with a nucleus
What are eukaryotic cells?
the basic unit of life (level of organization where life begins)
What is Cell?
organisms that make their own food
What are producers (autotrophs)?
What are prokaryotic cells?
Members of a species with traits that allow them to survive and reproduce in an environment will increase in population, while those without those traits will die.
What is natural selection?
consumers that eat only meat
What are carnivores?
the source of energy on earth
What is the sun?
Energy flow...the transfer of energy from one organism to the next.
What do arrows in a food chain or web show?
coiled and supercoiled DNA ("X" shaped)
What is a chromosome?
What are biotic factors?
organelle where cellular respiration takes place
What is the mitochondria?
The term used to describe a fertilzed egg. After the sperm meets the egg.
What is a zygote?
consumers responsible for getting rid of dead organisms in the food chain
What are decomposers?
Light energy, water, and carbon dioxide
What is required for phoyotsynthesis?
the organelle where photosynthesis occurs
What are chloroplasts?
the 3 cell structures found ONLY in plant cells and not in animal cells
What are cell wall, chloroplast, and a large central vacuole?
products of photosynthesis (what is made)
What are glucose (sugar) and oxygen?
A pyramid shaped model that shows the amount of energy available at each step of a food chain.
What is an energy pyramid?
New organisms outcompete native organisms for food, shelter, and other resources, causing their population to decline.
What are the negative impacts of invasive species?
homologous structures...bones with similar structure that are used for different purposes in different organisms
What is an example of something that shows common ancestry between species?
Animal, Plant, Protist, Fungi, Bacteria, Archaebacteria
What are the 6 kingdoms of life?
reactants of photosynthesis (required)
What are light energy, carbon dioxide and water?
half the number of chromosomes
How many chromosomes are in reproductive cells compared to body cells?
relationship where one organism benefits and the other is harmed
What is parasitism?