Body Systems

___Within the human body, what is the smallest unit of organization?

• cell

• organ

• tissue

• organ system

Tags

NGSS.MS-LS1-3

NGSS.MS-LS1-1

___ How are the functions of the nervous system and endocrine system different?

• The nervous system releases chemical signals into the blood. The endocrine system carries information through nerve cells.

• The nervous system transports hormones through the body. The endocrine system releases chemical signals called hormones.

• The nervous system carries information through nerve cells. The endocrine system releases chemical signals into the blood.

• The nervous system releases chemical signals called hormones. The endocrine system transports hormones through the body.

___Which of the following lists the level of cell organization from smallest to largest?

• organs, cells, organ systems, tissues

• cells, tissues, organs, organ systems

• tissues, organs, organ systems, cells

• cells, organs, organ systems, tissues

Tags

NGSS.MS-LS1-3

___Which system in the human body is most responsible for moving materials throughout the body?

• skeletal

• muscular

• nervous

• circulatory

___Which statement describes how the human body is likely to respond to given stimulus?

• Sweat produced when the air temperature drops.

• The foot is pulled up after stepping on a sharp rock.

• The heart rate slows down after a startling sound.

• Saliva is produced after a skunk has sprayed its scent

___A student found this picture in her friends notes from science class.

What can she infer from this picture?

• It is a single cell because it has only one nucleus.

• It is a tissue because it is made up of similar cells.

• It is an organ because it is made up of different kinds of cells.

• It is an organ system because it is made up of different kinds organs.

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

___A student made this chart that shows the number of bones in some parts of the human body.

What is a valid conclusion that the student could draw from this data?

• The longer a body part is, the move more bones it has.

• Body parts that contain long bones part, the less can it can bend

• The more bones there are in a body part, the less it can bend.

• The more bones there are in a body part, the more it can bend.

___Which list shows units of a single organ system, in order from the smallest unit to the largest unit organization?

• red blood cell, nervous system, skin, stomach

• epithelial cell, cartilage, bone, digestive system

• fat cell, yellow bone marrow, femur, skeletal system

• circulatory system, heart, cardiac muscle, muscle cell

Tags

NGSS.MS-LS1-3

___A highway system is made up of many interconnected roads. Vehicles on these roads transport people, goods, and wastes within cities and between cities. Which organ system is most like a highway system in its function?

• circulatory

• digestive

• nervous

• skeletal

Tags

NGSS.MS-LS1-3

___A scientist is studying heart rates in people. In her investigation, she measures the heart rate of a person before and after the person receives an unexpected stimulus. Which scientific question could she answer with this investigation?

• Do people have different heart rates?

• Does heart rate change after a person receives a stimulus?

• Does a change in heart rate results in stimulus?

• Does a stimulus affect body systems other than the cardiovascular system?

Tags

NGSS.HS-LS1-3