input: OPTIONS:
- radiation of seeds
- consumption of seeds
- rainfall of seeds
- dispersal of seeds Now, answer this question: Answer the following question given this paragraph: Herbivory has been used by seed plants for their own benefit in a display of mutualistic relationships. The dispersal of fruit by animals is the most striking example. The plant offers to the herbivore a nutritious source of food in return for spreading the plant's genetic material to a wider area. An extreme example of collaboration between an animal and a plant is the case of acacia trees and ants. The trees support the insects with shelter and food. In return, ants discourage herbivores, both invertebrates and vertebrates, by stinging and attacking leaf-eating insects. Q: How do seed plants benefit from herbivores? A:
A:
output: dispersal of seeds

Answer the following question given this paragraph: An element, as defined in Chapter 1 "Chemistry, Matter, and Measurement", is a substance that cannot be broken down into simpler chemical substances. There are about 90 naturally occurring elements known on Earth. Using technology, scientists have been able to create nearly 30 additional elements that do not occur in nature. Today, chemistry recognizes 118 elementssome of which were created an atom at a time. Figure 2.1 "Samples of Elements" shows some of the chemical elements. Q: How many naturally occurring elements are known on earth? A:

OPTIONS:
- 85
- 60
- 87
- 90

Answer: 90

Problem: OPTIONS:
- carbon dioxide
- hydrogen
- sulfur
- cellulose
Q: Answer the following question given this paragraph: The fluffy white fibers on this plant look like cotton balls because that's what they are. The plant is a cotton plant, and the fibers are used to make cotton fabric. Cotton fibers consist of one of the most common compounds on Earth: cellulose. Cellulose is a biochemical compound found in all plants. It belongs to the class of biochemical compounds called carbohydrates. Q: What is one of the most common biochemical compounds on earth and is found in all plants? A:
Answer: cellulose

Problem:OPTIONS:
- diabetes
- mutation
- angina
- cancer

Answer the following question given this paragraph: Knowledge gained by this basic research on yeast cells has been applied to practical problems. Scientists have developed drugs to treat cancer based on knowledge of the cell cycle. Cancer is a disease in which cells divide out of control. The new drugs interfere with the cell cycle of cancer cells, so the cells stop dividing. This is an example of applied science. The aim of applied science is to find solutions to practical problems. Applied science generally rests on knowledge gained by basic science. Q: What is the name for the disease in which cells divide out of control? A:
****
A: cancer

Answer the following question given this paragraph: The epidermis is the outer layer of skin, consisting of epithelial cells and little else (see Figure below ). For example, there are no nerve endings or blood vessels in the epidermis. The innermost cells of the epidermis are continuously dividing through mitosis to form new cells. The newly formed cells move up through the epidermis toward the skin surface, while producing a tough, fibrous protein called keratin. The cells become filled with keratin and die by the time they reach the surface, where they form a protective, waterproof layer called the stratum corneum. The dead cells are gradually shed from the surface of the skin and replaced by other cells. Q: What is the outer layer of skin, consisting almost entirely of epithelial cells? A:
OPTIONS:
- hypodermis
- connective tissue
- dermis
- epidermis
epidermis

Answer the following question given this paragraph: Linnaeus classified organisms based on obvious physical traits. Basically, organisms were grouped together if they looked alike. After Darwin published his theory of evolution in the 1800s (discussed in the following chapter), scientists looked for a way to classify organisms that showed phylogeny. Phylogeny is the evolutionary history of a group of related organisms. It is represented by a phylogenetic tree , like the one in Figure below . Q: Which scientist was responsible for the theory of evolution by natural selection? A:
OPTIONS:
- stephen hawking
- galileo Galilei
- albert einstein
- charles darwin

Answer:
charles darwin