Worksheetsbiology - characteristics of life
Total questions: 20
Worksheet time: 28mins
A student collects plants and pebbles and places them in an aquarium to record observations. The sizes of the plants increased, but the pebbles did not. the student classifies the pebbles as nonliving. Which criteria does the student use as the basis of classification?
ability to grow
ability to move
ability to reproduce
ability to respond to stimuli
The nerve cells in a chef's hand sense heat from a pan. They signal to the brain which sends signals to the hand to release and drop the pan. Which TWO characteristics of living things does this action best demonstrate?
the ability to respond to stimulus
the ability to grow and develop
the ability for sells to contain DNA
the ability for evolutionary change
the ability to move
Phototropic flowers grow toward the sun. Which characteristic of life do the phototropic flowers demonstrate?
ability to reproduce
ability to maintain homeostasis
ability to respond to stimuli
ability to pass traits onto offspring
A student places a spider and several stones in a clear container. He adds water and food everyday to determine which objects in the container are living and non living. The student uses the______ as the criteria for the classification of the objects.
ability to grow and reproduce
ability to use food for energy
ability to pass traits to offspring
ability to respond to stimuli
A student places a potted plant and a plastic straw in a closet for two weeks. He observes that the plant is brown and wilted while the straw remains the same. He classifies the plant as living and straw as nonliving. Which criteria did the student use?
the plant needs energy from sunlight to make food for survival
the plant produces pollen for reproduction of its species
the plant generates sugars that are consumed as food by other organisms
the plant produces offspring with characteristics similar to the parent
Robert Hooke observed cork tissue from a plant using a microscope and saw small, honeycomb-like structures. What contribution did Hooke make to biology based on his observation?
he named the small structures organelles
he named the small structures cells
he stated that all living things come from preexisting cells
he stated that every living thing is made up of more than one cell
Rudolf Virchow rejected the idea that living things could generate spontaneously from nonliving things. which part of the cell theory supports this?
all organisms are made up of cells
cells exist in various forms and sizes
all cells come form preexisting cells
cells are the fundamental units of life
Matthias Schleiden proposed that a plant grows by the division of cells and is composed entirely of cells. Which component of the cell theory is supported by this?
the activity of an organism depends on the energy it consumes
all living things are made up of one or many cells
all cells are physically and chemically similar
energy flow occurs within cells
Theodore Schwann discovered that animal tissues are made of cells. Which part of the cell theory is based in part on this?
all organisms are made up of cells
new cells come from preexisting cells
all organisms are composed of one or more cells
cells produce proteins for the functioning of organisms
Schleiden and Schwann claimed that all living things are made of cells. Which piece of evidence support this claim?
water and gases are found in different types of cells
cells require energy to reproduce
plants and animals are made of different types of cells
cells have limited lifespans
How are unicellular organisms similar to multicellular organisms?
both types of organisms are the same size and shape
both types of organisms carry out all functions needed to sustain life
both types of organisms can only be seen with a microscope
both types of organisms are composed of many different cells
Which statement is true about organs in the human body
they are composed of only one type of specialized cell
they are the basic unit of structure and function for the organism
they are typically microscopic and function interdependently with other organs
they are composed of multiple tissue types working together to perform a specific activity
What organ system includes red blood cells, arteries, and capillaries?
circulatory
digestive
nervous
respiratory
What is the most complex level of organization in an organism?
cell
organ
system
tissue
Which level of organization is formed when similar cells specialized to perform a specific function come together?
organ
organism
system
tissue
Which organism could be considered nonliving because it cannot carry out all the functions of life on its own as described in the cell theory
a virus
a multicellular algae
a unicellular algae
a prokaryote
What evidence would prevent scientists from classifying viruses as living organisms?
some viruses use RNA (not DNA) as genetic material
some viruses do not contain any proteins or carbohydrates
viruses reproduce asexually
viruses require a host cell to reproduce
Which feature of viruses is the most similar to a feature of living things?
viruses do not groe or develop
viruses have a way to reproduce new viruses
viruses have a basic structure that is not based on cells
viruses require host cells in order to be active
Which statement justifies that viruses are nonliving?
viruses lack organelles
viruses lack genetic material
viruses lack structures for movement
viruses lack membranes around their DNA
Research provides that the HIV virus requires a host to carry out its metabolic activities. Which evidence supports that the HIV virus is nonliving?
it has complicated DNA
it has complicated structures
it lacks food-producing or energy- producing cell organelles
it lacks the genetic material needed to create more viruses
