Homeostasis
Pick one hormone and show its feedback loop
melatonin, leptin, insulin, etc
A child inherits traits from both parents, like eye color and hair texture. Where is this genetic information stored in the cells?
inside the nucleus
list at least 2 non-living (abiotic) factors that impact ecosystems
water, sun, CO2, O2, nutrients, etc.
This type of organism the the foundation of all ecosystems
producers/autotrophs (anything that does photosynthesis to make its own food!)
why do doctors recommend taking only the correct amount of antibiotics when dealing with a bacterial infection?
so that all of the bacteria are killed and they don't mutate to become resistant to the antibiotic
You are eating. Name 2 ways your body changes.
blood glucose rises; leptin released; insulin released; glucagon stores extra glucose into fat
A scientist notices that a change in a plant causes it to grow blue flowers instead of red.
How did this happen?
mutation, environmental pressure causing mutation
The maximum number of organisms that an ecosystem can support.
carrying capacity
A cut on your skin heals over time as new cells form to replace the damaged ones.
What process is responsible for making these new cells
mitosis
one problem caused by increased levels on CO2 in the atmosphere is...
increased temperatures, rising sea levels, change in climate, etc
Muscle cells contain more mitochondria than skin cells. Explain why you think this is. Think about the role of mitochondria.
mitochondria makes energy/ATP, muscle cells need more energy to do their job (movement)
A mutation occurs in the DNA of a single cell. How will this affect the protein?
Change shape/function.
plants perform ___________ which releases __________ into the atmosphere. Animals take it in and release _____________.
photosynthesis, oxygen, carbon dioxide
Diversity helps a species' survival over time because....
Different traits allows them to survive in varying conditions
Why don't antibodies work to fight every pathogen?
they need to have the right shape to fit
Make a model of the inputs and outputs of cellular respiration
input: O2, glucose
output: CO2, ATP, water
Explain how a heart cell and a blood cell are different even though they have the same DNA.
they turn on/off the genes they don't need for their function
When organisms eat the same food or use the same limited resources
competition
You're taking the regents and don't understand a question. What will you do?
reword it, skip it and come back, try to break it down, connect it to what you already know, etc
One solution to combat climate change and increased CO2 levels in the atmosphere is...
reduce fossil fuels, plant more trees, use renewable energy
You are exercising. Name 2 systems involved and how they respond.
circulatory system increases heart rate and blood flow to move materials faster
respiratory system increases breathing to get more O2 in and more CO2 out
muscular/skeletal system uses ATP to move
you need to increase the diversity of a population. How might you do this?
introduce new organisms to sexually reproduce and create new unique combinations
Student A: "My ecosystem is stable because it has many different organisms. This will help it be stable because each organism brings different options for food."
What concept are they referring to that helps ecosystems?
biodiversity
Two siblings have different hair colors even though they have the same parents. How did this happen?
during meiosis, crossing over mixes the DNA which creates unique combinations of alleles/genes
After receiving a vaccine, how does a person’s immune system respond?