Match the nutrient to what it supplies for the body

• long-term energy storage; vitamin usage

• vitamins

• fast energy

• fats

• helps cells and organs do their job

• carbohydrates
• strong bones and teeth

• proteins

• building blocks for growth

• minerals

Dinosaurs were sometimes found with rocks in their ribcage, about the same place where a bird's crop would be. The crop functions to aid in the place of teeth and stomach. Based on this, the crop is in what system?

One loop takes blood with wastes to the lungs and the other loop takes blood with oxygen to the body. Because of this, it is sometimes called...

• a double blood system

• a double-stuffed system

• a double rail system

• a double loop system

​ (a)   have more muscular walls due to the ​ (b)   from the pumping heart. ​ (c)   carry blood back to the heart and have ​ (d)   .

• increased blood pressure
• Arteries
• Veins
• reduced blood pressure

Your heart is a powerful, fist-shaped muscle that beats 100,000 times a day to power the circulatory system. Which of the following are functions of the circulatory system? Choose the three that apply.

• transporting nutrients
• bringing oxygen to cells
• help fight off diseases and infections
• breaking down nutrients
• remove wastes from the body

Wild horses, called mustangs, live in North America. Competition with grazing livestock and predators are all sources of _______________ for the mustang.

• stress
• response
• homeostasis
• hormones

What level of body organization do the lungs represent?

• Cell
• Tissue
• Organ System
• Organ

Reorder the stages of how blood sugar is controlled by the pancreas' production of insulin.

• Blood sugar levels go down

• The pancreas produces insulin

• The brain tells the pancreas to stop producing insulin

• The brain sends signals to the pancreas to produce insulin

• Blood sugar is too high

Name 3 functions of the skeletal system

• Protect internal organs

• Produce red blood cells

• Support and facilitate movement

• Make enzymes

• Control hormone production

Reorder the steps of the digestive process

• Absorption

• Enzymatic digestion by saliva

• Removal of water and compaction

• Chemical digestion by acids

• Elimination