Plants & Body Systems

The protective covering of the body.

• respiratory system

• cardiovascular system

• integumentary system

• endocrine system

Gathers oxygen from the environment and gets rid of carbon dioxide from the body.

• cardiovascular system

• respiratory system

• endocrine system

• lymphatic system

The table below shows two human body systems. Place the two correct organs that complete the table.

b

c

heart

lung

skin

thymus gland

stomach

Our bodies have levels of organization that build upon each other. Our ​ (a)   make up tissues, ​ (b)   make up organs, and organs make up ​ (c)   .

• cells
• tissues
• organ systems
• organism

Label the biological levels of organization.

a

b

c

community

population

organism

ecosystem

Which sequence best describes an interaction between the integumentary and excretory systems that helps maintain homeostasis?

• Heart rate increases → Blood vessels constrict

  → Blood pressure increases

• Blood vessel is damaged → Platelets begin to clump → Blood vessel ruptures

• Blood sugar levels rise → Pancreas secretes insulin → Blood sugar continues to rise

• Body temperature increases → Glands release sweat → Body temperature decreases

Which of the following is an example of the endocrine system directly interacting with the nervous system?

• The vertebrae protect the spinal cord from injury.

• Hormones provide feedback that affects neural processing.

• Sensory receptors in bones send signals about body position to the brain.

• The brain sends signals that control the speed at which food moves through the intestines.

The ​ (a)   system consists of a group of organs that help break down food into nutrients and simpler substances. The ​ (b)   system helps transport these nutrients and substances throughout the body, and into the cells. Food that is undigested moves through the large intestine, and is eliminated from the body through the ​ (c)   system.

• digestive
• circulatory
• excretory
• endocrine
• respiratory

Match the following

• first line of defense

• Nervous System

• sends and receives signals

• Integumentary

• protects against pathogens

• Endocrine

• creates hormones

• Immune System

• moves skeletal frame

• Muscular

Which statement best describes an interaction that will allow a flowering plant to reproduce by self-pollination?

• An anther is transferred from a filament to another filament within the same flower. 

• An ovule is transferred from the ovary to a petal on a different flower. 

• A pollen grain is transferred from an anther to the stigma of the same flower. 

• An ovary is transferred from a flower on one plant to a flower on a different plant.