Ecology And Population

Question 1

1. What is Habitat ?

Answer 1

A habitat is a place where organism lives .

Question 2

2. How are cactus able to adapt to their habitat , in THE DESERT !! (list the characteristics)

Answer 2

1. stems that can absorb water
2. spikes which modifies as leaves
3. thick and waxy cuticle
4. widespread and deep roots
5. reduced number of stomata

Question 3

4. what is an ecologist ?

Answer 3

An ecologist is a scientist who studies how animals and plants interact with their environment .

Question 3

3. Aquatic plants that grows in Malaysia

Answer 3

1. water hyacinth
2. duckweed
3. water lily
4. lotus

Question 4

5. what is population ?

Answer 4

Population is a group of individuals of the same species living and interbreeding within a given area .

Question 5

6. what is a community

Answer 5

An interacting group of various species living in a common area .

Question 6

7. what is sampling ?

Answer 6

Sampling is a method that allows us to measure the abundance and distribution of species .

Question 7

8. different types of sampling methods

Answer 7

1. pooter
2. quadrats
3. sweep netting
4. Pitfall traps

Question 8

9. what does the arrow –> in a food chain indicate ?

Answer 8

The arrow indicates the energy flow .

Question 9

10. What is a producer ?

Answer 9

A producer is an organism that makes its own food

Question 10

11. What is consumer ?

Answer 10

A consumer feeds on both plants and animals .

Question 11

12. What are the different type of consumer ?

Answer 11

1. Primary consumer
2. Secondary consumer
3. Tertiary consumer .

Question 12

13. what is prey ?

Answer 12

A Prey is a animal that feeds on other animals but also gets eaten but other animals .

Question 13

14 .what is predator ?

Answer 13

A predator feeds on other animals which is the prey .

Question 14

15 . what is herbivore , omnivore , carnivore ?

Answer 14

1. herbivore : feeds on plants (producers)
2. Carnivore : feeds on other animals
3. Omnivore : feeds on both plants and animals

Question 15

16. what is a decomposers ?

Answer 15

A decomposer feeds on dead organisms and gives nutrients to the soil and it goes back to the plant. they get their nutrients from the dead and then transfer the nutrients back to the soil and then back to the plant .

Question 16

17 . Examples of decomposers

Answer 16

1. Fungi

2. bacteria

Question 17

what factors effects the size of the human population ?

Answer 17

1 . asteroid

2. virus

Question 18

what are the adaptations of polar bears ? and what is it used for ?

Answer 18

1. white fur = camouflage from predators

2. small ears = small surface area to help maintain body warmth

Question 19

the population decrease along the food chain why ?

Answer 19

Because the arrows indicates the energy flow and when they go along the food chain energy is lost a long the food chain that’s why the organisms decrease