General

Question 1

Explain the order of life from smallest to biggest.

Answer 1

1. Organelle
2. Cell
3. Tissue
4. Organ
5. Organ system
6. Organism

Question 2

What is a stem cell?

Answer 2

A stem cell is a single cell that can replicate itself or differentiate into many different cell types. Stem cells are being researched for many different purposes, from the regeneration of limbs to the fighting off of cancer.

Question 3

What are the four types of tissue?

Answer 3

1. Epithelial
2. Connective
3. Muscle
4. Nervous

Question 4

What is the function of epithelial tissue?

Answer 4

Protection from dehydration and invaders

Question 5

What is the function of connective tissue?

Answer 5

Support, insulation, movement of materials around

Question 6

What is the purpose of muscle tissue?

Answer 6

To enable movement

Question 7

What is the purpose of nervous tissue?

Answer 7

Sensory, communication, coordinates body functions

Question 8

What are the three types of muscle tissue?

Answer 8

Cardiac, smooth, and skeletal

Question 9

What is the purpose of cardiac muscle?

Answer 9

It is responsibility for the contractility of the heart, and therefore the pumping action.

Question 10

What is the purpose of smooth muscle?

Answer 10

It serves a variety of functions. It is in the stomach and intestines, where it helps with digestion and nutrient collection. It also in other places such as the urinary system, where it helps rid the body of toxins and balance electrolytes.

Question 11

What is the purpose of skeletal muscle?

Answer 11

They enable humans to move and perform daily activities. They play an essential role in respiratory mechanics, maintaining posture/balance, and protecting vital organs.

Question 12

How many organs are there in the human body?

Answer 12

78

Question 13

What are the 11 organ systems?

Answer 13

1. Skeletal
2. Muscular
3. Nervous
4. Circulatory
5. Endocrine
6. Lymphatic
7. Digestive
8. Respiratory
9. Urinary
10. Reproductive
11. Integumentary

Question 14

What are the two different types of organisms?

Answer 14

Simple and complex

Question 15

Explain the digestive systems of simple organisms

Answer 15

They consist of vacuoles or a gastrovascular cavity

Question 16

Explain the digestive systems of complex organisms

Answer 16

Food is digested along a digestive tract

Question 17

What are some advantages of complex digestive systems?

Answer 17

They are able to break down more complex foods. They also allow for continuous intake of food, and thus more nutrients. Has more efficient absorption of nutrients because organs can specialize.