What organic compound makes up 25% of the secondary walls of cells of older stems and roots?

a. Cellulose
b. Glycogen
c. Glucose
d. Lignin
e. Starch


d

Biology & Microbiology

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Living members of the ____ lineage include the sharks, skates, and rays, all of which have skeletons made entirely of

cartilage.

a. Petromyzontoidea b. Chondrichthyes c. Actinopterygii d. Myxinoidea e. Sarcopterygii

Biology & Microbiology

What kinds of cells spend the most time in G0 phase?

a. gametes b. nerve c. epithelial d. cancerous

Biology & Microbiology

What is the primary beneficial function of fungi?

a. Breaking down insoluble organic matter b. Defending plants against pests and diseases c. Serving as food for most aquatic species d. Removing pesticides and fertilizers from soil

Biology & Microbiology

Describe the characteristics of individuals with type 2 diabetes.

What will be an ideal response?

Biology & Microbiology