Life & Homeostasis
Which organelle is the site of respiration?
mitochondria
What two things do the testes make?
Sperm & Testosterone
What is one resource we get from our environment?
Food, Water, Oxygen, Wood, Medicines,..etc.
What does an indicator do?
Changes color in the presence of a specific chemical.
What is extinction?
When an entire species is no longer present on Earth.
Starch gets digested into
Sugars (Glucose)
What is a substitution mutation?
When 1 or more bases is replaced with other bases
What is a nonrenewable resource?
A resource that is not replaceable or is limited.
What is a control group?
Group that gets the normal condition (no/neutral IV)
Structure determines ___
FUNCTION
What two organelles does a plant cell have and an animal cell does not?
Cell wall & Chloroplast
Human insulin is now produced by E. coli bacteria. How was this done?
Genetic engineering
Photosynthesis turns _ energy into _ energy.
Light/Solar into Chemical
How can you increase the validity of an experiment?
Increase sample size or Repeat it
Decomposers _________________ back to the environment.
recycle nutrients
What two factors can cause an enzyme to lose its shape?
pH & temperature
If a male fruit fly produces sperm with 4 chromosomes in it, how many chromosomes are in its wing cells?
8
Why are invasive species able to outcompete native ones?
They have no natural predators.
During each transfer of energy in a food web, some energy is lost as _____.
Heat
What does selective permeability mean?
Only some things can go through.
Place the following events in order of sexual reproduction & development:
Differentiation
Fertilization
Meiosis
Mitosis
Meiosis
Fertilization
Mitosis
Differentiation
How does each stage in ecological succession spur on the next one?
They make the environment more suitable for the next stage.
Why should you slowly lower a coverslip onto a slide?
It prevents air bubbles from being trapped.
During a drought, how does a plant maintain homeostasis?
Closes guard cells to prevent water loss through stomata.