Which of the following is the best definition of movement in biology?

An action by an organism causing a change of position or place

What is the function of the placenta?

Connect fetus to mother for exchange of materials

What is the binomial system?

A two-part naming system for species

What is a kingdom in biological classification?

One of the major groups into which all organisms are classified

An organism with cell walls but no photosynthesis

The mass after removing all water content

The sum of all chemical reactions in an organism

What defines growth in biological terms?

A permanent increase in size and dry mass

The removal of waste and excess substances

What are hyphae in fungi?

Microscopic threads that form fungi body

What is a protoctist?

A mostly single-celled organism with a nucleus

What is the role of chlorophyll?

A green pigment that absorbs light energy for photosynthesis

What is a dichotomous key used for?

To identify an organism by working through pairs of statements

What does vestigial mean?

Structure that lost its original function

What is a common ancestor?

A species from the past that gave rise to different modern species

What does a genus include?

A group of species with similar traits and a common ancestor

What is metamorphosis?

Changing from larva to adult form

Why is respiration essential for metabolism?

It breaks down nutrient molecules to release energy

If an organism can produce fertile offspring, what does this mean?

It belongs to the same species as its parents

What defines a species?

A group that can reproduce to produce fertile offspring

What is the function of nutrition?

To provide materials for energy, growth, and development

A scientist is classifying a new organism using a dichotomous key. What does this mean?

They are matching it to a species based on paired statements

Animals with jointed legs and exoskeleton

Which statement is false about the binomial system of naming species?

Each species name consists of three parts

What is an exoskeleton?

A hard outer covering for protection

What is the main purpose of reproduction?

To produce new individuals of the same kind

What is movement in biological terms?

An action causing a change in position or place

What are organic substances?

Substances that contain carbon and are made by living things

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Biology Chapter 1 Keywords

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Questions 45

Answers

1
Which of the following is the best definition of movement in biology?
A process that requires respiration to occur
A change in position or place due to an external force
Any action that involves a living thing
An action by an organism causing a change of position or place
2
What is the function of the placenta?
Help digestion
Produce hormones
Breathe for the baby
Connect fetus to mother for exchange of materials
3
What is the binomial system?
A way to describe species through common traits
A two-part naming system for species
A classification system based on three scientific names
A method of grouping organisms based on DNA
4
What is a kingdom in biological classification?
A taxonomic group that contains only animals
One of the major groups into which all organisms are classified
A method for naming organisms
A level below species
5
What is a fungus?
An organism with cell walls but no photosynthesis
A plant that uses sunlight
A water-living bacteria
A single-celled animal
6
What is dry mass?
The mass after removing all water content
The sum of all stored nutrients in a body
The total weight of living tissue
The weight of an organism without bones
7
What is metabolism?
The ability to detect and respond to stimuli
The increase in size and dry mass
The removal of waste products from the body
The sum of all chemical reactions in an organism
8
What does unicellular mean?
Made of many types of cells
Made of a single cell
A fungus cell
Contains many nuclei
9
What defines growth in biological terms?
A permanent increase in size and dry mass
A process that provides energy for movement
A temporary increase in cell number
The removal of excess substances
10
What do decomposers do?
Absorb carbon dioxide
Produce food from sunlight
Fly to search for prey
Break down dead organic matter
11
What is excretion?
The removal of waste and excess substances
The release of energy from food
The intake of nutrients for growth
The process of reproduction in cells
12
What are hyphae in fungi?
Plant roots
Insect legs
Reproductive cells
Microscopic threads that form fungi body
13
What is a protoctist?
A mostly single-celled organism with a nucleus
A multicellular fungus
A plant with seeds
A mammal with lungs
14
What is an organism?
A structure made of multiple cells
A type of organic substance
A group of similar species
A living thing
15
What are spores used for in fungi?
Feeding
Reproduction
Respiration
Photosynthesis
16
What do mammary glands do?
Control blood sugar
Help with breathing
Produce milk to feed young
Regulate body heat
17
What is the role of chlorophyll?
A structure that helps plants transport glucose
A type of organic substance that plants produce for survival
A molecule that stores carbon dioxide in plants
A green pigment that absorbs light energy for photosynthesis
18
Which process releases energy for metabolism?
Sensitivity
Excretion
Respiration
Growth
19
What does "infertile" mean?
Unable to grow
Unable to absorb nutrients
Unable to respond to stimuli
Unable to reproduce
20
What is a dichotomous key used for?
To describe an organism’s adaptations
To classify organisms based on binomial names
To study common ancestors of different species
To identify an organism by working through pairs of statements
21
What does the diaphragm help with?
Hearing
Breathing
Digestion
Circulation
22
What does vestigial mean?
Brand-new organ
Muscle for flying
Structure that lost its original function
Useful digestive organ
23
What is a common ancestor?
A group of organisms that can reproduce to produce fertile offspring
A classification group in the binomial system
A species that has identical DNA to another species
A species from the past that gave rise to different modern species
24
Where is the pinna found?
In the lungs
On the outside of the ear
In the stomach
On the hand
25
What does a genus include?
A category that includes different families of organisms
A classification level below species
A group of species with similar traits and a common ancestor
A set of identical species within the same habitat
26
What does prokaryotic mean?
A cell without a nucleus
A cell with chloroplasts
A plant cell
A type of fungus
27
What is metamorphosis?
Gaining fur
Eating after birth
Changing from larva to adult form
Moving from land to water
28
What does "fertile" mean in biology?
Able to reproduce
Capable of producing nutrients
Releasing energy for metabolism
Able to grow at a fast rate
29
Why is respiration essential for metabolism?
It removes waste products of metabolism
It breaks down nutrient molecules to release energy
It provides oxygen for growth
It helps detect changes in the environment
30
What are monocotyledons?
Plants with one cotyledon
Plants with two seed leaves
Plants that cannot reproduce
Animals with flowers
31
What are dicotyledons?
Plants without chloroplasts
Plants with one cotyledon
Plants with no flowers
Plants with two seed leaves
32
What is the function of cellulose in plant cells?
Helps photosynthesis
Makes up the cell wall
Absorbs sunlight
Stores protein
33
If an organism can produce fertile offspring, what does this mean?
It is an infertile hybrid
It is classified in the same kingdom as its parents
It belongs to the same genus as its parents
It belongs to the same species as its parents
34
What defines a species?
A classification rank above genus
A group that can reproduce to produce fertile offspring
A group that shares a common ancestor
A group of organisms with similar body structures
35
What is the function of nutrition?
To remove metabolic waste from cells
To detect and respond to environmental changes
To provide materials for energy, growth, and development
To increase the dry mass of an organism
36
A scientist is classifying a new organism using a dichotomous key. What does this mean?
They are matching it to a species based on paired statements
They are testing whether it contains organic substances
They are observing how the organism reproduces
They are analyzing its genetic structure for common ancestors
37
What are arthropods?
Animals with jointed legs and exoskeleton
Sea dwelling plant
Animals with soft skin
Bacteria
38
Which term describes an organism’s ability to respond to environmental changes?
Excretion
Metabolism
Growth
Sensitivity
39
Which statement is false about the binomial system of naming species?
It is internationally agreed upon
It includes both the genus and species name
Each species name consists of three parts
It helps scientists classify organisms correctly
40
What is an exoskeleton?
A muscle in the chest
A soft tissue in the body
A reproductive organ
A hard outer covering for protection
41
What is the main purpose of reproduction?
To produce new individuals of the same kind
To remove waste products from metabolism
To take in nutrients for survival
To maintain homeostasis
42
What is movement in biological terms?
A change in behavior due to external stimuli
A response to a change in the environment
The process of breaking down food for energy
An action causing a change in position or place
43
What are organic substances?
Substances that contain carbon and are made by living things
Substances that provide energy to all living organisms
Substances only found in animals
Substances that do not contain carbon
44
What does terrestrial mean?
Flying in air
Living in water
Living on land
Underground movement
45
What does multicellular mean?
Having no nucleus
Made of many cells
Made of proteins
Having one cell

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