Populations
A _______ is the number of individuals in a specific area.
What is a population?
A _________ is all of the populations put together in an area.
What is a community?
What is Biodiversity?
A. The number of people living in a particular area.
B. The variety of living organisms, including plants, animals, and microorganisms, in a particular area or on Earth as a whole.
C. The amount of pollution in the environment.
D. The study of rocks and minerals.
What is B. The variety of living organisms, including plants, animals, and microorganisms, in a particular area or on Earth as a whole.
The type of symbiosis that has two organisms mutually (BOTH) benefitting from the interaction.
A. Mutualism
B. Commensalism
C. Parasitism
D. Symbioism
What is mutualism?
Every food chain begins with a ______
What is a producer or plant?
What is 1 reason that a population can DECREASE (go down)
Organisms moving out of the area.
Death rate is higher than the birth rate.
Natural disasters
ETC.
What does a herbivore eat?
What are plants?
This type of succession begins in an area where no soil exists, such as after a volcanic eruption creates new land.
What is Primary Succession?
Parasitism is where one organism is benefitting from the interaction while the other one is ______.
What is being harmed?
What three things do organisms need to survive?
Food, Water, Shelter
In most ecosystems, this group of organisms usually has a larger population: the hunters or the hunted?
What is prey (the hunted)
What is the relationship called when one animal is the prey and the other is the predator?
What is predation?
This type of succession occurs after a disturbance like a wildfire, where soil is still present.
What is Secondary Succession?
This type of symbiosis occurs when one organism benefits while the other is not helped or harmed.
A. Colonization
B. Carnivorism
C. Commensalism
D. Communism
What is Commensalism
Almost all energy in an ecosystem originates from this source, which producers like plants use to make food through photosynthesis.
What is the sun?
In a forest, oak trees and pine trees both need sunlight, water, and nutrients. The struggle between them for these limited resources is an example of this.
What is competition?
This term describes the role or “job” a species has in its community, including how it gets food and interacts with other organisms.
What is Niche?
Lichens and mosses are often the first organisms to grow on bare rock and are called what?
What is pioneer species?
A tapeworm absorbing nutrients from a human’s intestines is an example of this type of symbiosis, where the host loses nutrients and may become sick.
What is parasitism?
What percent of energy gets transferred from one level to the next in an energy pyramid?
0.1, 1, 10, 100
What is 10%
When a species disappears completely from Earth, it is considered this. Conservationists focus on preventing this outcome for species whose populations are critically low, known as this.
What are extinction and endangered species?
When a species is introduced to a new ecosystem where it has no natural predators, it can outcompete native species, disrupt food webs, and alter habitats. These species are called this.
What are invasive species?
This stable, mature community forms at the end of ecological succession if the ecosystem is left undisturbed.
What is a climax community?
When cattle egrets follow grazing cows and eat the insects that the cows stir up, the birds benefit while the cows are mostly unaffected. This type of symbiosis is called this.
What is Commensalism?
This process that takes place in a plant's chloroplast and uses sunlight, carbon dioxide, and water to produce glucose and oxygen.
What is photosynthesis?