Biology Unit 1: Living Systems Test

Last name, First name

Class Period

• 1
• 2
• 3
• 5
• 6

Which interaction of body systems is primarily helping the teacher lift his arm?

• Nervous, skeletal, and respiratory
• Muscular, skeletal, and endocrine
• Nervous, lymphatic, and muscular
• Skeletal, muscular, and nervous

The circulatory system and the respiratory work together to…

• Increase blood sugar levels
• Increase melatonin levels
• Supply the body with oxygen and remove carbon dioxide
• Decrease oxygen in the body

(1-2) The diagram shows a model of the hierarchical organization of the digestive system. Which of these best explains the missing level of organization?

• tissue
• cells
• organs
• organ system

(1-2) A layer of cells in the trachea (wind pipe), known as the respiratory mucosa, contain specialized cells that make mucus. These specialized cells are called Goblet Cells and the mucous they make keeps the trachea moist. What is this an example of?

• Cells working together to maintain homeostasis.
• Cells working together to produce energy for the body.
• Organs working together to maintain homeostasis.
• Organs working together to produce energy for the body.

(1-2) Most starfish turn their stomach inside out to eat captured prey. The stomach digests the food outside of the body and, when complete, returns to the inside of the body. Which term applies to the stomach?

• cell
• organ
• system
• tissue

(1-2) Which of these best explains the organization of the biosphere?

• Groups of biomes make up a community, and groups of communities make up an ecosystem.
• Groups of communities make up a population, and groups of populations make up a biome.
• Groups of individual organisms make up populations, and groups of populations make up communities.
• Groups of populations make up an ecosystem, and groups of ecosystems make up a community.

(1-3) Using the diagram of the feedback loop, what does your body do when blood glucose (sugar) increases above the set point?

• Releases insulin
• Releases glucagon
• Takes in insulin
• Takes in glycogen

(1-2) Which of the following lists abiotic (nonliving) parts of an ecosystem?

• river, grass, soil
• rocks, insects, trees
• minerals, water, air
• sand, saltwater, birds