Types of Biodiversity
Members of the same rabbit species have different fur colors. Which level of biodiversity does this show?
Genetic Diversity
People breed chickens that lay the most eggs. What type of selection is this?
Artificial Selection
A walking stick insect resembles a twig. How does this adaptation help it survive?
Camouflage makes it harder to see
A wildflower grows naturally in Pennsylvania without people introducing it. What term describes its relationship to Pennsylvania?
Native
The decline of a pollution-sensitive stream insect warns scientists that water quality is worsening. What type of species is it?
Indicator Species
A pond contains turtles, frogs, fish, and several kinds of plants. Which level of biodiversity does this show?
Species Diversity
In a snowy environment, white rabbits survive and reproduce more successfully than brown rabbits. Over generations, white fur becomes more common. What process is occurring?
Natural Selection
A desert plant has a thick stem that stores water. Why is this adaptation useful in its environment?
Storing water helps the organism survive
A salamander occurs naturally in only one mountain range in the entire world. What term best describes its limited distribution?
Endemic
Removing a predator causes major changes throughout its food web. What type of species might that predator be?
Keystone Species
A region contains forests, wetlands, and grasslands. Which level of biodiversity does this show?
Ecosystem Diversity
What is the main difference between natural selection and artificial selection?
Artificial involves Humans
What is an organism that sensitive to pollution considered?
Indicator Species
People introduce a vine to a new region. It spreads rapidly and crowds out local plants. What term describes this vine?
Invasive Species
A raccoon eats many foods and lives in forests, suburbs, and cities.
What is this organisms considered?
Generalist
Two oak trees belong to the same species, but one has inherited greater resistance to disease. Which level of biodiversity explains this difference?
Genetic diversity
Over many generations, a flower develops a deeper nectar tube while its pollinator develops a longer tongue. What process does this illustrate?
Co-evolution
A sea star eats mussels. When the sea star disappears, mussels take over and crowd out many other organisms. What role does the sea star play?
Kesytone species
A plant comes from another country but stays in a garden without spreading or harming local species. Is that invasive
Just non native
An insect feeds on only one kind of plant. Is it a generalist or specialist, and what could happen if that plant disappears?
Specialist,
population could decrease or disapear
- A park protects different habitats, many kinds of organisms, and inherited differences within populations. Name the three levels of biodiversity it protects.
Genetic diversity
Species diversity
Ecosystem Diversity
Over generations, a prey population becomes more poisonous, while its predator population becomes more resistant to the poison. Explain why this is coevolution.
Both species evolve in response to each other. Greater poison levels favor resistant predators, while resistant predators create pressure favoring more poisonous prey.
Species A warns scientists about pollution. Species B helps maintain the structure of a food web.
What are species a and b considered ?
Indicator Species, and Keystone Species.
A bird occurs naturally on one island and nowhere else on Earth. Can it be both native and endemic to that island? Explain.
Yes, every organisms that is Endemic is naturally occuring in that area
A disease destroys one food source in a forest. Which is more likely to survive: an animal that eats only that food or an animal with a varied diet? Explain why.
the specialist, they cant find an alternative food source