Note: you need 3 (three) similarities and differences for each system. That means you need 3 of each.

Question

Body Systems You Chose
3 Similarities between humans and (your animal)
3 Differences from humans and (your animal)
Respiratory system

Skeletal system

Digestive system

Answer 1

Respiratory System (Humans vs Birds):
Similarities:
1. Both humans and birds have lungs that help with breathing and supplying oxygen to the body.
2. Both humans and birds have a diaphragm that helps with the breathing process.
3. Both humans and birds have a system of air sacs that aids in the efficiency of respiration.

Differences:
1. Birds have a respiratory system that includes air sacs, whereas humans do not have air sacs.
2. Birds have a higher respiratory rate compared to humans due to their high metabolic rate.
3. Birds have a higher lung volume relative to their body size compared to humans.

Skeletal System (Humans vs Elephants):
Similarities:
1. Both humans and elephants have a skeleton that provides support and structure to the body.
2. Both humans and elephants have bones that are connected by joints to allow for movement.
3. Both humans and elephants have a spinal column that protects the spinal cord.

Differences:
1. Elephants have much larger and thicker bones compared to humans due to their larger size and weight.
2. Elephants have longer and thicker limbs to support their massive body weight, whereas humans have shorter and thinner limbs.
3. Elephants have tusks and trunk bones that are unique to their skeletal system, which humans do not have.

Digestive System (Humans vs Ruminant Animals):
Similarities:
1. Both humans and ruminant animals have a digestive system that processes food and extracts nutrients.
2. Both humans and ruminant animals have a stomach that contains acid to help break down food.
3. Both humans and ruminant animals have intestines where nutrients are absorbed into the bloodstream.

Differences:
1. Ruminant animals have a specialized stomach with four chambers (rumen, reticulum, omasum, and abomasum), while humans have a single-chambered stomach.
2. Ruminant animals have a process called rumination where they regurgitate and rechew their food, which humans do not do.
3. Ruminant animals have a high-fiber diet that requires a longer digestion time and specialized bacteria in their stomachs, whereas humans have a more varied diet.