The stomach begins chemical digestion of which of these substances?
A) fats
B) proteins
C) sugars
D) carbohydrates
B
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Answer the following statements true (T) or false (F)
1. The plant hypersensitive response is one in which the plant is unable to defend itself against a pathogen. 2. Generally plants are unable to produce chemicals that travel throughout the plant to protect against pathogens; most defense is only in localized areas. 3. When scientists breed for genes for resistance to pathogens or herbivores they are usually limited to making mutations for this to happen. 4. Cytokinins are transported through the xylem to meristems where they aid in cell elongation.
Many people develop "mountain sickness" when they travel to high altitudes, developing headaches, difficulty
sleeping, and nausea from the lack of oxygen. Which process fails to occur in people who continue to have mountain sickness after being at high altitude for a few days?
a. evolution b. dynamic equilibrium c. acclimation d. acclimatization e. biorhythms
Nuclear autosomal DNA sequence is more abundant than mtDNA and is therefore preferable for use in reconstructing events like domestication or human migration
Indicate whether the statement is true or false
The kingdom that includes mushrooms and yeasts is the ________.
Fill in the blank(s) with the appropriate word(s).