Which is most complex?(1 point)

Responses

cells
cells

organ system
organ system

organs
organs

tissues

organ system

What is the function of an organ system? (1 point)

The function of an organ system is to work together to perform a specific set of functions necessary for the survival and well-being of an organism. These functions can include processes such as digestion, respiration, circulation, excretion, and reproduction.

to work together to do a specific job

How are muscle cells and bone cells similar?

Muscle cells and bone cells are similar in that they are both types of specialized cells found in the human body. They are both derived from stem cells and have specific functions within the body. Additionally, both muscle cells and bone cells are considered part of a connective tissue. However, in terms of structure and function, muscle cells and bone cells differ significantly. Muscle cells, also known as muscle fibers, are responsible for contraction and movement, while bone cells, such as osteoblasts and osteoclasts, are involved in the formation and maintenance of bone tissue.

How are muscle cells and bone cells similar?(1 point)

Responses

Both gather information from inside and outside the body.
Both gather information from inside and outside the body.

Both make it possible for you to respond to your environment by moving.
Both make it possible for you to respond to your environment by moving.

Both control involuntary movements such as the beating of your heart.
Both control involuntary movements such as the beating of your heart.

Both release sweat when the temperature gets too warm.

Both make it possible for you to respond to your environment by moving.

Which organ of the respiratory system is located inside the lungs?

The organ of the respiratory system that is located inside the lungs is the bronchial tree.

Which organ in the excretory system filters blood?

The organ in the excretory system that filters blood is the kidneys.

What is the term for changes in the internal or external environment that cause a response?

The term for changes in the internal or external environment that cause a response is stimuli.

How do signals from sensory neurons reach motor neurons?

Signals from sensory neurons reach motor neurons through a process called synaptic transmission. When a sensory neuron detects a stimulus, it generates an electrical impulse called an action potential. This action potential travels along the sensory neuron's axon until it reaches the synapse, which is a small gap between the sensory neuron and the motor neuron. At the synapse, neurotransmitter molecules are released from the sensory neuron and diffuse across the gap. These neurotransmitters bind to receptors on the motor neuron, triggering the generation of a new action potential. This action potential then travels along the motor neuron, leading to the contraction or movement of muscles or the secretion of glands, resulting in a response to the stimulus.

How do signals from sensory neurons reach motor neurons?(1 point)

Responses

Through interneurons in the brain and spinal cord that connect sensory neurons and motor neurons.
Through interneurons in the brain and spinal cord that connect sensory neurons and motor neurons.

Signals from sensory neurons do not get sent to motor neurons.
Signals from sensory neurons do not get sent to motor neurons.

Motor neurons signal for the body to move the signal toward them.
Motor neurons signal for the body to move the signal toward them.

Signals move from dendrite to dendrite towards motor neurons.

Through interneurons in the brain and spinal cord that connect sensory neurons and motor neurons.

What is the function of an organ system? (1 point)

Responses

to be a basic unit of organization with bodies
to be a basic unit of organization with bodies

to work together to do a specific job
to work together to do a specific job

to control movement in internal organs
to control movement in internal organs

to organize a group of similar cells