Biology

Question 1

What are the main tenets of cell theory?

Answer 1

1. All living things are composed of cells
2. Cells are the basic functional units of life
3. All cells come from preexisting cells
4. Genetic material is passed down from parent cell to daughter cell in the form of DNA

Question 2

Brain is derived from

Answer 2

ectoderm

Question 3

Kidneys are derived from

Answer 3

mesoderm

Question 4

Spinal cord is derived from

Answer 4

ectoderm

Question 5

Peripheral nerves are derived from

Answer 5

ectoderm

Question 6

Epithelial lining of mouth and anus are derived from

Answer 6

ectoderm

Question 7

Hair is derived from

Answer 7

ectoderm

Question 8

Nails are derived from

Answer 8

ectoderm

Question 9

Epidermis is derived from

Answer 9

ectoderm

Question 10

Dermis is derived from

Answer 10

mesoderm

Question 11

Sweat glands are derived from

Answer 11

ectoderm

Question 12

Hair follicles are derived drom

Answer 12

ectoderm

Question 13

Adrenal medulla is derived from

Answer 13

ectoderm

Question 14

Tooth enamel is derived from

Answer 14

ectoderm

Question 15

Cornea of eye is derived from

Answer 15

ectoderm

Question 16

Lens of eye is derived from

Answer 16

ectoderm

Question 17

Heart is derived from

Answer 17

mesoderm

Question 18

blood vessels are derived from

Answer 18

mesoderm

Question 19

blood cells are derived from

Answer 19

mesoderm

Question 20

notochord is derived from

Answer 20

mesoderm

Question 21

Dermis is derived from

Answer 21

mesoderm

Question 22

gonads are derived from

Answer 22

mesoderm