Test

Question 0

What are tropic levels?

Answer 0

The levels of nourishment in a food chain. 90% heat transfer and 10% energy. Trophic means energy. (Producers->primary->secondary->tertiary)

Question 1

What are the properties of life and how many are there?

Answer 1

1) Organization and cell
- atom to biological molecule to organelle to cell to tissue to organ to organ system to organism
2) response to stimuli
3) homeostasis
4) reproduction
5) growth and development
6) metabolism
7) adaptation(change through time)

Question 2

What is a food web?

Answer 2

Many different food chains crossed to create a we which shows the transfer of energy from one organism to others

Question 3

What is a food chain?

Answer 3

The chain of transfer of energy from one organism to another through feeding. Ex. Grass->cow->human

Question 4

What is the scientific method and it’s steps ?

Answer 4

It is the process used to find answers to questions about the world around us.

1) OBSERVATION of the natural world
2) Formulate a QUESTION
3) Research and COLLECT DATA
4) state a HYPOTHESIS
5) EXPERIMENT TO TEST HYPOTHESIS
6) CONCLUSION from observations
7) COMMUNICATE RESULTS

Question 5

What are the 3 themes of biology?

Answer 5

1) diversity&unity of life
2) interdependence of organisms
3) evolution of life(theory)

Question 6

What are the levels of organization of multicellular organisms & levels or organization in an environment?

Answer 6

Atoms➡️biological molecules➡️organelle➡️Cell➡️Tissue➡️Organ➡️Organ system➡️Organism
(Smallest to biggest)
Organism➡️population➡️community➡️Ecosystem➡️Biosphere

Question 7

What is a limiting factor?

Answer 7

Environmental factor that prevents an organism or population from reaching its full potential of distribution or activity (limits/controls population) example could be climate, supply of food

Question 8

What is carrying capacity ?

Answer 8

The largest population that an environment can support @ any given time. It is shown in a logistic model graph. The birth rate equals the death rate and the growth stops when reaching it’s carrying capacity.

Question 9

Biotic vs Abiotic

Answer 9

Abiotic- nonliving factor in an ecosystem ex. Moisture,sunlight. This is needed for survival
Biotic-living things in an ecosystem ex. Plants,animals,fungi,bacteria

Question 10

What is a control and the different types of variables?

Answer 10

Control-a part of the experiment that is NOT being tested and is used for comparison
Variable-any part of an experiment that can change
Independent variable- part of experiment CHANGED by the scientist doing the experiment
Dependent variable- part of experiment that is AFFECTED by the independent variable
(It can be measured)

Question 11

What is predation?

Answer 11

Organism that hunts another organism(prey) for energy(food)

Question 12

What is competition ?

Answer 12

2 organisms trying to eat the same food

Question 13

What is symbiosis ?

Answer 13

Relationship between 2 organisms of different species

Question 14

Mutualism?

Answer 14

Both organisms benefit from the relationship

Question 15

Parasitism?

Answer 15

One organism benefits while the other is harmed

Question 16

Commensalism

Answer 16

One organism benefits while the other is neither harmed or helped

Question 17

What is an organism

Answer 17

An independent individuals hat has all the 7 characteristics of life
Example - rabbit

Question 18

Population

Answer 18

Group of organisms of the same species that live in the same area
Example- group of same flowers

Question 19

Community

Answer 19

Group of different species that live in the same habitat and interact with each other
Example- rainforest(living)

Question 20

Ecosystem

Answer 20

Community of organisms & their abiotic environment

Ex. Rainforest (biotic&abiotic)

Question 21

Biosphere

Answer 21

All the living organisms on earth

Example-earth