Author Question: The ectoderm develops into ____. a. muscle and skeleton b. nerve tissue and skin c. endocrine ... (Read 118 times)

rachel9

  • Sr. Member
  • ****
  • Posts: 495
The ectoderm develops into ____.
 
  a. muscle and skeleton
  b. nerve tissue and skin
  c. endocrine and respiratory organs
  d. reproductive and excretory organs

Question 2

During prenatal development the ______ begins to differentiate into the cells of the ectoderm, mesoderm, and endoderm?
 
  a. placenta
  b. fetus
  c. zygote
  d. embryo



brittrenee

  • Sr. Member
  • ****
  • Posts: 321
Answer to Question 1

ANSWER:
b

Answer to Question 2

ANSWER:
c



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

For a complete list of videos, visit our video library