Answer the following statements true (T) or false (F)
1. Cells can sense changes in the environment through alterations in the extracellular matrix.
2. Wrinkling observed with aging is do to low production of the extracellular matrix molecule, fibronectin.
3. Blood vessels that can expand and contract are largely composed of collagen as a structural extracellular matrix protein.
4. Glycosaminoglycans and proteoglycans resist compression and are found in large abundance in joints of the body.
5. Cellulose from the cell wall is a primary energy store for plants.
1. TRUE
2. FALSE
3. FALSE
4. TRUE
5. FALSE
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Tropical rain forests are restricted primarily to the ________ zone between latitudes 10° N and 10° S
Fill in the blank(s) with correct word
Parenchyma, collenchyma, and sclerenchyma are classified as tissues in the:a
dermal tissue system. b. vascular tissue system. c. ground tissue system. d. primary tissue system. e. secondary tissue system.
Adaptations for Aquatic Endotherms
What will be an ideal response?