Human Body Systems
Cells work together to build what?
Tissues
What are nonliving factors called?
Abiotic
What is environmental science?
How humans interact, impact, and use resources in the environment.
Define evolution.
Change over time
What is the scientific method?
What is the largest organ in the body?
skin
What is mutualism?
When two living organisms benefit from each other.
What is a natural resource? Provide 2 examples.
Something derived naturally from the environment. Water, wind, sunlight, animals, plants.
Where does genetic variation come from?
Combination of genes from parents and random genetic mutations in DNA.
What are the building blocks of all living organisms?
Cells
Organ systems work together to maintain what?
Homeostasis
How does energy flow throughout our ecosystems?
Food webs
Why is natural gas considered a nonrenewable resource?
When it is gone, it is considered gone because it takes so long to replenish.
Genetic traits that help an organism survive, reproduce and pass down its traits are known as what?
adaptations
Is Mrs. Martinez having a boy or girl?
What two systems work together to get nutrients into the blood stream?
What turns nitrogen into a usable form for plants/animals/humans?
Bacteria fix nitrogen into a usable form.
What is a synthetic natural resource? Provide an example.
A product that originally came from the environment but underwent man made chemical processes to turn it into a new product. Medicines and plastics.
What drives evolution?
A change in the environment or a pressure like a predator or competition for food.
What is Mrs. Martinez's favorite 7th grade period?
Period 5
What blood vessels carry oxygen-rich blood to the body?
artery
What provides an organism with everything it needs to live, grow, and reproduce?
Habitat
How many barrels of oil spilled into the Gulf of Mexico during the Bp oil spill?
4.2 million barrels
What is natural selection?
The process by which animals that are better adapted to their environment are more likely to survive and reproduce more than other animals of the same species.
What is your favorite 7th grade memory!?
Various answers