Misc
Name three characteristics of all life.
Answers vary
Wind blowing through its branches would be what kind of factor for a tree in the forest? (biotic/abiotic)
abiotic
In diffusion, molecules always move from an area of ________ concentration to an area of ________ concentration.
high to low
Give an example of a renewable resource.
wood, wind, sunlight, etc
A mouse is most likely a carnivore, omnivore, or herbivore?
herbivore
What does a catalyst (like an enzyme) do in a chemical reaction? Why is this important in our bodies?
It speeds up the reaction. This is important to things in our bodies like digestion.
If a population is experiencing a decrease in size, how do the birth and death rates compare?
The death rate is higher than the birth rate.
What process takes place in the chloroplast?
Photosynthesis
Give an example of a nonrenewable resource.
Gas and fossil fuels
Suppose an organism is a host to a parasitic tapeworm. Which would be most beneficial to the tapeworm?
a. Death of the host from disease caused by the tapeworm
b. Absorbing enough nutrients to sustain the tapeworm without harming the host
b.
Mr. Krabs has created a new sauce that he thinks will reduce the production of body gas associated with eating crabby patties from the Krusty Krab. He recruits 100 people with a history of gas problems. 50 of them are in Group A and receive the new sauce. 50 are in Group B and receive the original sauce. They measure the amount of gas problems each person had after 2 hours. What is the independent variable?
Type of sauce
Insects gather pollen and nectar for food, but at the same time aid the plant in reproduction. What kind of relationship is this?
Mutualism (they both benefit)
In which structure would you expect to find a cell wall? Human skin cell, A cell from an oak tree, A blood cell from a cat, A liver cell from a mouse
A cell from an oak tree
Which natural disaster requires the least amount of recovery time? Lighting strike, Meteor, Tsunami, or Volcanic eruption
Lightning strike
Explain how the invention of the microscope changed how scientists studied living organisms.
It allowed us to study cells and the make up of organisms, which we could not see previously.
A severe drought would be a density _________ factor. (Dependent or independent)
Independent
A contagious fatal virus would be a density ____ factor. (Dependent or independent)
dependent
What do Eukaryotes have that Prokaryotes do not?
Organelles!!
Prokaryotes only have cell wall/membrane, cytoplasm, ribosomes, and DNA
Fish grown in a hatchery (fish farm) often have less genetic variation than wild fish populations. How might this affect the ability of hatchery fish to adapt to an environmental disaster such as pollution?
If a species has less genetic variation, they do not have as many genes in their gene pool. This means most organisms will have similar genes and traits, which would cause large populations to die off at once if affected by pollution.
If angelfish produce hundreds of young several times per year, would the organism be an r strategist or a k strategist?
r strategist (Small, multiple offspring, short lives, etc)
Why does increased ecosystem diversity contribute to increased species diversity?
The more ecosystems there are the more species can adapt to those different environments, increasing the number of species on Earth.
How do autotrophs and heterotrophs differ in the way they obtain energy
If an animal cell is placed in a hypertonic solution, the cell will _________ water. (lose or gain)
Lose
Why do you think that destruction of habitat is a greater threat than overexploitation of certain species?
If we destroy their habitat, animals will have nowhere to live and eventually get hit by cars, contract diseases while living in close proximity to others, and die off.
Explain why it is not a good idea to release exotic pets (like iguanas) into your local ecosystem.
They could be an invasive species and attack or outcompete native species.