LESSON 5

Question 1

It is the process of grouping organisms based on shared characteristics, evolutionary relationships and genetic similarities.

Answer 1

classification

Question 2

classification is the process of grouping organisms based on _____, ______ and _____.

Answer 2

shared characteristics
evolutionary relationship
genetic similarities

Question 3

refers to the largest of all groups in the classification of life.

Answer 3

DOMAIN - domain

Question 4

are unicellular prokaryotic microscopic organisms.

Answer 4

Bacteria

Question 5

Their unique feature covers the presence of peptidoglycan in the cell wall

Answer 5

bacteria

Question 6

2 types of bacteria

Answer 6

gram negative
gram positive

Question 7

______ bacteria do not have a protective outer membrane.

Answer 7

Gram-positive

Question 8

They have a thick peptidoglycan cell wall.

Answer 8

Gram-positive bacteria

Question 9

are sphere- or rod-shaped, or they have branching filaments.

Answer 9

Gram-positive bacteria

Question 10

have two membranes — one external(outer membrane) and one internal(plasma membrane).

Answer 10

Gram-negative bacteria

Question 11

Thes e bacteria also have a thinner peptidoglycan cell wall than bacteria, which sits between their two membranes

Answer 11

Gram-negative bacteria

Question 12

They can be spherical-, rod-, or spiral-shaped.

Answer 12

Gram-negative bacteria

Question 13

They are single-celled microorganisms that, like bacteria, do not have a nucleus, but they have distinct differences from bacteria in their genetics, biochemistry, and cell structure.

Answer 13

archaea

Question 14

cell wall does not contain peptidoglycan

Answer 14

archaea

Question 15

first found in extreme environments

Answer 15

archaea

Question 16

gene structure similar to eukaryote

Answer 16

archaea

Question 17

cell wall contains peptidoglycan

Answer 17

eubacteria

Question 18

found almost everywhere

Answer 18

eubacteria

Question 19

gene translation different from eukaryotes or archaebacteria

Answer 19

eubacteria

Question 20

Characterized by the presence of a nucleus and other membrane-bound organelles within their cells.

Answer 20

domain eukaryote

Question 21

ensures that each daughter cell receives an identical set of chromosomes

Answer 21

Mitosis

Question 22

results in the formation of cells with half the number of chromosomes, necessary for sexual reproduction.

Answer 22

meiosis

Question 23

Classification of living things allows us to:

Answer 23

Organise and categorise species based on shared characteristics.

Question 24

Classification of living things allows us to:

Answer 24

Provide a universal system for communication and information exchange.

Question 25

Classification of living things allows us to:

Answer 25

Reveal evolutionary relationships and common ancestry.

Question 26

Classification of living things allows us to:

Answer 26

Help with scientific research, conservation efforts and studies of biodiversity.

Question 27

A ______ is a tool scientists use to classify organisms they find in the field.

Answer 27

dichotomous key

Question 28

It consists of a consecutive set of questions to which the answers are either yes or no. The questions asked are based on a series of .__________

Answer 28

contrasting characteristics

Question 29

benefit of classification

Answer 29

Enhances our understanding of biodiversity

Question 30

benefit of classification

Answer 30

Enables people from around the world to communicate effectively about living things

Question 31

benefit of classification

Answer 31

Allows us to identifynew species in remote habitats

Question 32

benefit of classification

Answer 32

Allows us to name organisms that we are unsure about

Question 33

benefit of classification

Answer 33

Assists us in ecological studies and species conservation

Question 34

benefit of classification

Answer 34

Assists us in ecological studies and species conservation