Ecosystems - 3A

Question 1

types of ecosystems

Answer 1

Ecosystems come n many shapes and sizes. The specific combination of abiotic and biotic factors determines what kind of ecosystem it is.

Question 2

Abiotic factors

Answer 2

non living organisms in an ecosystem

Question 3

Biotic factors

Answer 3

Living organisms in an ecosystem

Question 4

Ecosystems

Answer 4

complex networks of interacting organisms and their environment

Question 5

What is the order organization for the ecosystem

Answer 5

Ecosystem - Community - Population - Organism

Question 6

Surviving in an ecosystem

Answer 6

Orgainisims need resources from their ecosystem, such as: water, nutrients, air (oxygen & carbon dioxide) , shelter, mates

Question 7

Symbiotic

Answer 7

Long term interaction between two organisms from different species living close together

Question 8

symbiotic relationships

Answer 8

occur when unlike organisms interact directly with each other

Question 9

mutualism

Answer 9

Is when both organisms benefit. E.g Pollinators get food from flowering plants, and help them produce.

Question 10

commensalism

Answer 10

one benefits, the other is unaffected. E.g Many plants are not impacted by animals sheltering in them.

Question 11

Parasitism

Answer 11

One benefits, the other is harmed. E.g Yellow dodders drill into a host pant, stealing nutrients and slowly killing it.

Question 12

Competition

Answer 12

(- -) Occurs between two individual who both need the same limited resource. The competition negatively affects both; even the ‘winner’ can be hurt and loses energy from the interaction. e.g Food, mate, shelter

Question 13

Predator and Prey

Answer 13

Individual organisms also interact directly with each other in short-term relationships, such as predation (+ - )

Question 14

What happens when there’s more prey

Answer 14

More predators have food to survive and reproduce

Question 15

As prey decreases

Answer 15

So do the predators as their food runs out

Question 16

Predation

Answer 16

One organism captures and feeds on an individual from another species

Question 17

Competition can be:

Answer 17

Direct e.g peacocks fighting each other for a mate. Indirect: e.g plants using the same water source. Interspecies: between individuals of different species. Intraspecies: between individuals of the same species

Question 18

Disease vectors

Answer 18

(o/-) An organism that carries and transmits pathogens without being affected. While this short, indirect interaction can cause serious illness in the new host organism, it can be an essential part of maintaining population sizes and the balance of ecosystems. E.g Animals, fleas, mosquitoes