Which cells carry nutrients from food to the rest of the cells in the body
A.nerve cells
B.muscle cells
C.blood cells
D.stomach cells
C. blood cells
How are blood cells and stomach cells similar
A.both help maintain homeostasis
B.both help with digestion
C.both secrete enzymes
D.both send signals in the body
B. both help with digestion.
Which option shows the correct order of organization within multicellular organisms (from least complex to most complex)?(1 point)
Responses
A. tissue → organ system → organ → organism → cell
tissue → organ system → organ → organism → cell
B. cell → tissue → organ → organ system → organism
cell → tissue → organ → organ system → organism
C. cell → organ → organ system → tissue → organism
cell → organ → organ system → tissue → organism
D. organ → organ system → cell → organism → tissue
organ → organ system → cell → organism → tissue
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B. cell → tissue → organ → organ system → organism.
Which statement is true?
A. Bones provide shape to the body.
Bones provide shape to the body.
B. Bones are organ systems.
Bones are organ systems.
C. Bones help the heart pump blood.
Bones help the heart pump blood.
D. Bones are composed of a single layer.
A. Bones provide shape to the body.
What is systemic circulation?
A. the path of blood between pharynx and trachea
the path of blood between pharynx and trachea
B. the path of blood between the heart and lungs
the path of blood between the heart and lungs
C. the path of blood as it moves from the heart throughout the body and back to the heart
the path of blood as it moves from the heart throughout the body and back to the heart
D. the path of blood as it moves from the head throughout the body and back to the head
C. the path of blood as it moves from the heart throughout the body and back to the heart.
Which organ in the excretory system has a function similar to that of the esophagus in the digestive system?
A. ureter
ureter
B. bladder
bladder
C. urethra
urethra
D. kidney
A. ureter
In which two organs is food broken down?
A. mouth and stomach
mouth and stomach
B. esophagus and stomach
esophagus and stomach
C. small intestine and large intestine
small intestine and large intestine
D. esophagus and small intestine
A. mouth and stomach
When you get home, you smell cookies baking. You respond by walking toward the kitchen. Many signals move through your nervous system in this process. Which component is involved first?
A. dendrites in your motor neurons
dendrites in your motor neurons
B. dendrites in your sensory neurons
dendrites in your sensory neurons
C. axons in your sensory neurons
axons in your sensory neurons
D. axons in your motor neurons
B. dendrites in your sensory neurons.
Which component of nerve cells contains the nucleus?
A. axon
axon
B. dendrite
dendrite
C. cell body
cell body
D. neuron
neuron
C. cell body.
Which of the following observations could you make based on stimuli to your thermoreceptors?
A. The ice cream is cold.
The ice cream is cold.
B. The ice cream is sweet.
The ice cream is sweet.
C. The ice cream is heavy.
The ice cream is heavy.
D. The ice cream is white.
The ice cream is white.
A. The ice cream is cold.
A girl has her eyes shut and is standing inside a brightly lit room. What happens to her pupils when she opens her eyes? Why?
A. Her pupils grow because the muscles relax.
Her pupils grow because the muscles relax.
B. Her pupils grow because the muscles contract.
Her pupils grow because the muscles contract.
C. Her pupils shrink because the muscles relax.
Her pupils shrink because the muscles relax.
D. Her pupils shrink because the muscles contract.
Her pupils shrink because the muscles contract.
D. Her pupils shrink because the muscles contract. The bright light from the room will activate the pupillary reflex causing the circular muscles of the iris (muscles in the colored part of the eye) to contract, causing the pupils to become smaller. This is done to reduce the amount of light entering the eyes to protect the retina from damage.
The human body has four types of tissues. What part of the eye uses muscle tissue for opening and closing movements?
A. Sclera
B. Iris
C. Retina
D. Cornea
B. Iris.
How do polar bears maintain homeostasis in freezing cold weather?
A. Their metabolism speeds up to produce heat.
Their metabolism speeds up to produce heat.
B. Their metabolism slows down to preserve heat.
Their metabolism slows down to preserve heat.
C. Their thick fur retains heat.
Their thick fur retains heat.
D. Their thick skin insulates the internal organs against the cold.
C. Their thick fur retains heat.
Which example shows an organism that cannot reach homeostasis through internal changes?
A. A person gets a fever in response to a flu infection.
B. Circulation decreases in a bird when it becomes too warm.
C. A dog shivers when it is too cold.
D. A lizard is cold, and it moves to a sunny rock to warm up.
D. A lizard is cold and it moves to a sunny rock to warm up.
An eye doctor shines a bright light into a patient's eye. In one to two sentences, explain how the patient's brain perceives the bright light.
An eye doctor shines a bright light into a patient's eye. In one to two sentences, explain how the patient's brain perceives the bright light?
The bright light activates the photoreceptors (rods and cones) in the retina. These photoreceptors send signals through the optic nerve to the brain, which is then interpreted as seeing the bright light.
Moss is classified as a?
A. seed plant.
seed plant.
B. vascular plant.
vascular plant.
C. seedless plant.
seedless plant.
D. nonvascular plant.
nonvascular plant.
D. nonvascular plant.
Bacteria and humans are similar in that they?
A. grow and reproduce.
grow and reproduce.
B. are multicellular.
are multicellular.
C. are unicellular.
are unicellular.
D. produce energy.
produce energy.
A. grow and reproduce.
________ is generic term for a tool to visualize relationships in a classification system?
A. Table
Table
B. Graph
Graph
C. Model
Model
D. Diagram
D. Diagram.
What trait differentiates lilacs from pine trees?
A. Pine trees produce seeds.
Pine trees produce seeds.
B. Pine trees have leaves.
Pine trees have leaves.
C. Lilacs are vascular plants.
Lilacs are vascular plants.
D. Lilacs have flowers.
D. Lilacs have flowers.
Giant kelp, which can grow up to 60 meters, are known as?
A. fungi.
fungi.
B. vascular plants.
vascular plants.
C. protists.
protists.
D. nonvascular plants.
B. vascular plants.
You receive a sample slide of an organism. While observing it under a microscope, you notice that the organism is single-celled and green in color. There are multiple individual organisms on the slide. Based on this initial information, you guess that it is either a bacterium or a protist. Which trait is least likely to help you identify the correct group of this organism?
A. the absence of cell structure membranes
the absence of cell structure membranes
B. the presence of different cell shapes
the presence of different cell shapes
C. the presence of cell structures in the cell
the presence of cell structures in the cell
D. the absence of a nucleus
B. The presence of different cell shapes. Bacteria generally have a uniform shape, while protists can have a variety of shapes, so this trait would not be very helpful in distinguishing between the two groups based on the initial information given. The other traits listed are more characteristic of one group or the other (e.g. the presence or absence of cell structure membranes is a key feature that distinguishes bacteria and protists).
Vascular plants can be divided into groups based on?
A. color.
color.
B. the presence or absence of seeds.
the presence or absence of seeds.
C. size.
size.
D. the presence or absence of flowers.
the presence or absence of flowers.
B. The presence or absence of seeds.
Your teacher gives you a multicellular organism. It is small, green, and has chloroplasts. All of its cells function in the same way. Which kind of organism is it most likely to be?
A. vascular plant
vascular plant
B. protist
protist
C. bacterium
bacterium
D. nonvascular plant
A. Vascular plant.
Why is the classification species not considered a group?
A. Each species shares characteristics with other species.
Each species shares characteristics with other species.
B. Each species is a separate type of organism.
Each species is a separate type of organism.
C. Each species lacks the characteristics of the levels above.
Each species lacks the characteristics of the levels above.
D. Each species is an individual organism.
Each species is an individual organism.