Adaptations
True or False: adaptation are passed down genetically.
True, adaptation are passed down genetically.
What type of symbiotic relationship is this?
Birds build a nest in the tree, the tree is unharmed.
Commensalism
Interaction in which one organism kills another for food or nutrients (tell us what interaction it is)
What is predation?
Generally, when there are a lot of predators, there is not much prey. and vice versa. Explain why this happens.
When there are a lot of predators, more prey gets eaten, and when there is not a lot of predators, the prey reproduces.
True or False: A niche includes the ecosystem it lives in.
FALSE, it only includes food.
Organisms without beneficial characteristics are more likely to die because they can't survive harsh conditions without them. When an organism is dead, it cannot reproduce
What are the three types of symbiotic relationships
mutualism, commensalism, and parasitism
How can interactions between predators and prey harm a type of species?
If there are more predators than prey, then the prey species has a higher chance of dying out.
Consider a grassland ecosystem of tall, tan savanna grasses. What is either a predator or a prey organism that might live there?
Example: snake because snake hide in grasses and can camoflauge in there.
Describe a niche in 10 words.
Example: It is the role of an organism in any ecosystem.
Is hibernation an example of an adaptation?
Yes - animals hibernate to conserve energy during the winter.
What does interdependent mean (in mutualism)
Two organisms rely on the other so much, they can't survive without the other
Name the five kind of interactions
Predation, Competition, Parasitism, Mutualism, Commensalism
What are some adaptations that help animals commit predation?
Sharp teeth and claws, well-developed senses, speed, and camoflauge.
Is the ability to curve one's tongue an example of an adaptation?
No - it does not help them survive
Why do parasites not kill the host (organism they feed on?)
If the host dies, then the parasite could lose its source of food or shelter.
Define what competition and predation are in terms of an ecosystem.
Competition: describes interactions where species strive for the same limited resources in an ecosystem.
Predation: the interaction where one organism (predator) kills the other organism (prey).
What would happen if a predator species goes extinct?
The animals it preys on would reproduce more, causing overpopulation. The food that the prey eat would run out, causing the prey to die as well.
Give an example of an animal that has a niche, and describe it.
Example: Hawaiian Sea Turtle---it obtains its food by grazing on algae and seagrass near coral reefs. It has a herbivorous diet consisting of algae and seagrasses.Their predators include large sharks, killer whales, and large bony fish.
What are some adaptions that polar bears have?
Thick layers of fat and fur, snow colored fur, large paws, immense strength
Sea otters eat urchins. Urchins prevent kelp from growing. Without urchins, the kelp grows really high.
What kind of relationships do the Sea Otters have with the kelp?
Mutualism
Why can Competition harm one species and help the other if they both eat the same things?
One species gets more food and the other gets less
Predict the effects on a predator-prey relationship, such as the one between a frog and blue heron, in a wet-land ecosystem in the midst of a drought.
Frogs will not have much water to drink, so they will die out. The blue herons that eat them will not have food as well, so they will die out too.
What is the ecological niche of a sea otter? (predator or prey, what does it eat, how does it obtain its food)
Otters are the top predator in a marine ecosystem, and they obtain their food by diving to the floor to hunt for invertebrates.