The sugars that honeybees feed on are what type of macromolecules?
a. lipids
b. carbohydrates
c. proteins
d. nucleic acids
B
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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.
Radioactivity can destroy cancerous tissue but not healthy tissue
Indicate whether the statement is true or false.
What does "light pollution" refer to?
a. diminished natural lighting b. rapid proliferation of artificial lighting c. rapid proliferation of natural lighting d. diminished artificial lighting
The term carnivorous as applied to carnivorous plants is not considered accurate by some biologists because
A) carnivorous plants use insects for nitrogen and minerals; an organism would have to use insects as a source of energy and matter as well to be a carnivore. B) carnivorous plants only use insects as pollinators and do not gain any nutrients from them. C) carnivorous plants do not digest whole insects; an organism would have to digest whole insects to be considered a carnivore. D) carnivorous plants do not move around; an organism must be able to move to be considered a carnivore.