Which cells carry nutrients from food to the rest of the cells in the body?(1 point) Responses nerve cells nerve cells blood cells blood cells muscle cells muscle cells stomach cells stomach cells Question 2 How are blood cells and stomach cells similar?(1 point) Responses Both secrete enzymes. Both secrete enzymes. Both help with digestion. Both help with digestion. Both help maintain homeostasis. Both help maintain homeostasis. Both send signals in the body. Both send signals in the body. Question 3 Which option shows the correct order of organization within multicellular organisms (from least complex to most complex)?(1 point) Responses cell → tissue → organ → organ system → organism cell → tissue → organ → organ system → organism tissue → organ system → organ → organism → cell tissue → organ system → organ → organism → cell organ → organ system → cell → organism → tissue organ → organ system → cell → organism → tissue cell → organ → organ system → tissue → organism cell → organ → organ system → tissue → organism Question 4 Which statement is true?(1 point) Responses Bones are organ systems. Bones are organ systems. Bones provide shape to the body. Bones provide shape to the body. Bones help the heart pump blood. Bones help the heart pump blood. Bones are composed of a single layer. Bones are composed of a single layer. Question 5 What is systemic circulation?(1 point) Responses 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 the path of blood between the heart and lungs the path of blood between the heart and lungs the path of blood as it moves from the head throughout the body and back to the head the path of blood as it moves from the head throughout the body and back to the head the path of blood between pharynx and trachea the path of blood between pharynx and trachea Question 6 Which organ in the excretory system helps get filter waste?(1 point) Responses ureter ureter urethra urethra bladder bladder kidney kidney Question 7 In which two organs is food broken down?(1 point) Responses esophagus and small intestine esophagus and small intestine small intestine and large intestine small intestine and large intestine esophagus and stomach esophagus and stomach mouth and stomach mouth and stomach Question 8 Which component of nerve cells contains the nucleus? (1 point) Responses axon axon cell body cell body neuron neuron dendrite dendrite Question 9 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?(1 point) Responses Her pupils grow because the muscles contract. Her pupils grow because the muscles contract. Her pupils grow because the muscles relax. Her pupils grow because the muscles relax. Her pupils shrink because the muscles contract. Her pupils shrink because the muscles contract. Her pupils shrink because the muscles relax. Her pupils shrink because the muscles relax. Question 10 The human body has four types of tissues. What part of the eye uses muscle tissue for opening and closing movements?(1 point) Responses Cornea Cornea Iris Iris Sclera Sclera Retina Retina Question 11 How do polar bears maintain homeostasis in freezing cold weather? (1 point) Responses Their metabolism slows down to preserve heat. Their metabolism slows down to preserve heat. They hibernate in warm areas in order to heat their bodies. They hibernate in warm areas in order to heat their bodies. Their thick fur retains heat. Their thick fur retains heat. Their metabolism speeds up to produce heat. Their metabolism speeds up to produce heat. Question 12 Which example shows an organism that cannot reach homeostasis through internal changes? (1 point) Responses A dog shivers when it is too cold. A dog shivers when it is too cold. Circulation decreases in a bird when it becomes too warm. Circulation decreases in a bird when it becomes too warm. A person gets a fever in response to a flu infection. A person gets a fever in response to a flu infection. A lizard is cold, and it moves to a sunny rock to warm up. A lizard is cold, and it moves to a sunny rock to warm up. Question 13 How is homeostasis achieved?(1 point) Responses Cells maintain internal stability. Cells maintain internal stability. Cells secrete stomach enzymes. Cells secrete stomach enzymes. Cells control involuntary movements. Cells control involuntary movements. Cells control voluntary movements. Cells control voluntary movements. Question 14 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 release sweat when the temperature gets too warm. Question 15 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 to organize a group of similar cells Question 16 Which is most complex?(1 point) Responses cells cells organ system organ system organs organs tissues tissues Question 17 Which organ of the respiratory system is located inside the lungs?(1 point) Responses bronchioles bronchioles nasopharynx nasopharynx trachea trachea larynx larynx Question 18 Which organ in the excretory system filters blood?(1 point) Responses kidney kidney bladder bladder ureter ureter urethra urethra Question 19 What is the term for changes in the internal or external environment that cause a response?(1 point) Responses signals signals messages messages nerves nerves stimuli stimuli Question 20 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. Signals move from dendrite to dendrite towards motor neurons. Skip to navigation