Which of the following types of fibers are found in loose connective tissue?

 # Which of the following types of fibers are found in loose connective tissue? 

a. Yellow elastic and white collagen. 

b. White fibrous, elastic, and reticular. 

c. Elastic and collagenous. 

d. Fine reticular

The correct answer is: A. Yellow elastic and white collagen.

Yellow elastic and white collagen are found in loose connective tissue. White fibrous, elastic, and reticular fibers are found in dense irregular connective tissue. Elastic and collagenous fibers are found in elastic cartilage. Fine reticular fibers are found in reticular tissue. 

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Bone replaces cartilage by which of the following processes?

# Bone replaces cartilage by which of the following processes? 

a. Interstitial growth

b. Endochondral development

c. Intramembranous bone formation

d. Membranous bone formation

The correct answer is: B. Endochondral development.

Interstitial growth is growth within the cartilage matrix by each cartilage cell enlarging

and forming matrix around each cell.

Bone replaces cartilage by a process termed endochondral bone development.

Intramembranous bone is formed when collagen fibers of connective tissue organize into closely knit meshwork, and this matrix gradually calcifies into bone.

Intramembranous bone formation is also known as membranous bone formation.

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The cerebral hemispheres develop from which of the following vesicles:

 # The cerebral hemispheres develop from which of the following vesicles? 

a. Forebrain

b. Midbrain

c. Hindbrain

d. Primary brain

The correct answer is a. Forebrain.

 The cerebral hemispheres develop from the forebrain vesicles.

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The first step of mitosis is:

 # The first step of mitosis is which of the following? 

a. Telophase

b. Metaphase

c. Prophase

d. Anaphase 

The correct answer is: C. Prophase.

Prophase is the first step of mitosis in which four structural changes occur.

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