ATI TEAS 7
Biology
1. Which of the following is NOT a greenhouse gas?
- A. Carbon dioxide
- B. Water vapor
- C. Nitrogen
- D. Methane
Correct answer: C
Rationale: Rationale: A) Carbon dioxide: Carbon dioxide is a greenhouse gas that is naturally present in the Earth's atmosphere and is also released through human activities such as burning fossil fuels. B) Water vapor: Water vapor is a greenhouse gas that is naturally present in the atmosphere and plays a significant role in the Earth's climate system. C) Nitrogen: Nitrogen is not considered a greenhouse gas because it does not have the ability to absorb and emit infrared radiation in the same way that greenhouse gases like carbon dioxide and methane do. D) Methane: Methane is a potent greenhouse gas that is released through natural processes such as wetland decomposition and human activities such as livestock farming and fossil fuel extraction. Therefore, the correct answer is C) Nitrogen, as it is not a greenhouse gas.
2. The major site for nutrient absorption in the digestive system is the:
- A. Mouth
- B. Stomach
- C. Small intestine
- D. Large intestine
Correct answer: C
Rationale: The correct answer is C: Small intestine. The small intestine is the major site for nutrient absorption in the digestive system. It is where most of the digestion and absorption of nutrients from food takes place. The small intestine has villi and microvilli that increase its surface area, allowing for efficient absorption of nutrients like sugars, amino acids, and fatty acids into the bloodstream. The mouth is primarily responsible for mechanical digestion through chewing, while the stomach's main function is to break down food with enzymes and acids. The large intestine mainly absorbs water and electrolytes, with minimal nutrient absorption.
3. Which type of reaction is represented by the equation A + B → AB?
- A. Synthesis
- B. Decomposition
- C. Single Replacement
- D. Double Replacement
Correct answer: a
Rationale: Synthesis reactions involve the combination of two or more substances to form a new compound.
4. Identify the indirect object in the following sentence: "He gave his mother a bouquet of flowers."
- A. mother
- B. bouquet
- C. flowers
- D. gave
Correct answer: A
Rationale: The indirect object tells who or what benefits from the action of the verb.
5. Identify the compound-complex sentence in the following options:
- A. The baker decorated the cake, and then he presented it proudly.
- B. Although it was raining, the children played outside.
- C. When the sun rises, the birds begin to sing.
- D. He enjoyed reading the book because it was suspenseful.
Correct answer: D
Rationale: A compound-complex sentence contains at least two independent clauses and at least one dependent clause.
6. Epithelial tissue, which covers surfaces, is further classified based on the number of cell layers. Simple epithelium has:
- A. No layers
- B. One layer
- C. Two to several layers
- D. Many tightly packed layers
Correct answer: B
Rationale: The correct answer is B: 'One layer.' Simple epithelium is characterized by having a single layer of cells. This type of epithelial tissue is found in areas where diffusion, filtration, or absorption are primary functions. Simple epithelium allows for efficient exchange of substances across the cell layer due to its thin structure and close proximity to underlying tissues. Examples of locations where simple epithelium is found include the lining of blood vessels (endothelium) and air sacs of the lungs (alveoli). In contrast, stratified epithelium consists of multiple layers of cells and is commonly found in areas that require protection against mechanical or chemical stress, such as the skin and the lining of the esophagus.
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