Lesson 3 - Levels of Biological Organisation

Question 1

According to ___, who is known as the Father of modern ecology, “Ecology is the study of structure and function of ecosystems”.

Answer 1

Eugene P. Odum

Question 2

the first person to use the term ecology.

Answer 2

Hanns Reiter

Question 3

was given credit to coin and defined the term “Ecology”.

Answer 3

Ernst Haeckel

Question 4

is known as the Father of ecology in India.

Answer 4

Ramdeo Misra

Question 5

is the study of how organisms interact with one another and with their physical environment.

Answer 5

Ecology

Question 6

is the study of the relationships between living organisms, including humans, and their physical environment; it seeks to understand the vital connections between plants and animals and the world around them.

Answer 6

Ecology

Question 7

is a natural environment of an organism where it grows, lives and
reproduces. It is an ecological area best-suited for an organism.

Answer 7

Habitat

Question 8

includes all the interaction of a species with the biotic and abiotic factors of its environment.

Answer 8

Niche

Question 9

Levels of organisation

Answer 9

Cell>Tissue>Organ>Organ system>Organism

Question 10

Levels of biological organisation

Answer 10

Biosphere>Biome>Ecosystem>Community>Population>Individuals

Question 11

the range of variation found among
microorganisms, plants, fungi, and
animals.

Answer 11

Biodiversity

Question 12

is a group of
individuals belonging to one
species (of bacteria, fungi, plant, or
animal) living in an area

Answer 12

Population

Question 13

Characteristics of population

Answer 13

1. Distribution
2. Population density
3. Population size
4. Population growth
5. Environmental resistance
6. Carrying capacity
7. Limiting factor

Question 14

Kinds of dispersion

Answer 14

a. Clumped (aggregate) dispersion
b. Regular dispersion
c. Random dispersion

Question 15

Formula for population density

Answer 15

Dp= N/A, where;
Dp = density population
N = total population
A = land covered / total area

Question 16

Population size

Answer 16

a. Natality - birth
b. Mortality - death
c. Immigration - population increases due to migration
d. Emigration - population decreases due to migration

Question 17

This growth depends upon the ideal condition of the environment

Answer 17

Population growth

Question 18

It is the total of all the inhibitory factors naturally regulating the growth of population since the environment puts up its resistance after a level often less that biotic potential or even carrying capacity.

Answer 18

Environmental resistance

Question 19

the capacity of the environment to support and sustain the level of population under the ideal set of conditions.

Answer 19

Carrying capacity

Question 20

any population has the tendency to grow. However, the growth
may be prevented to avoid future problems such too much competition for food and other resources.

Answer 20

Limiting factor

Question 21

Group of population living in the same habitat. It is also the
A interacting group of various different species living in an area, it includes plants, animals and microbes.

Answer 21

Community

Question 22

is a geographic area where plants, animals, and other organisms,
as well as weather and landscape, work together to form a bubble of
life.

Answer 22

Ecosystem

Question 23

is a collection of plants and animals that have common characteristics
for the environment they exist in. It consists of communities present in a large geographical area. They can be found over a range of continents.

Answer 23

Biome

Question 24

It is the total sum of all ecosystems.
It is also known as the zone of life on Earth. It includes all the living organisms, their relationships and interaction with the elements of atmosphere, hydrosphere and
lithosphere.

Answer 24

Biosphere