Problem:OPTIONS:
- dopamine
- insulin
- estrogen
- testosterone

Answer the following question given this paragraph: The gonads secrete sex hormones. The male gonads are called testes . They secrete the male sex hormone testosterone. The female gonads are called ovaries . They secrete the female sex hormone estrogen. Sex hormones are involved in the changes of puberty. They also control the production of gametes by the gonads. Q: The testes produce what hormone? A:
****
A: testosterone

Answer the following question given this paragraph: Connective Tissues Connective tissues are made up of a matrix consisting of living cells and a non-living substance, called the ground substance. The ground substance is made of an organic substance (usually a protein) and an inorganic substance (usually a mineral or water). The principal cell of connective tissues is the fibroblast. This cell makes the fibers found in nearly all of the connective tissues. Fibroblasts are motile, able to carry out mitosis, and can synthesize whichever connective tissue is needed. Macrophages, lymphocytes, and, occasionally, leukocytes can be found in some of the tissues. Some tissues have specialized cells that are not found in the others. The matrix in connective tissues gives the tissue its density. When a connective tissue has a high concentration of cells or fibers, it has proportionally a less dense matrix. The organic portion or protein fibers found in connective tissues are either collagen, elastic, or reticular fibers. Collagen fibers provide strength to the tissue, preventing it from being torn or separated from the surrounding tissues. Elastic fibers are made of the protein elastin; this fiber can stretch to one and one half of its length and return to its original size and shape. Elastic fibers provide flexibility to the tissues. Reticular fibers are the third type of protein fiber found in connective tissues. This fiber consists of thin strands of collagen that form a network of fibers to support the tissue and other organs to which it is connected. The various types of connective tissues, the types of cells and fibers they are made of, and sample locations of the tissues is summarized in Table 33.3. Q: What is the principal cell of connective tissues? A:
OPTIONS:
- organism
- Cancer
- neural
- fibroblast
fibroblast

Answer the following question given this paragraph: A change in the sequence of bases in DNA or RNA is called a mutation . Does the word mutation make you think of science fiction and bug-eyed monsters? Think again. Everyone has mutations. In fact, most people have dozens or even hundreds of mutations in their DNA. Mutations are essential for evolution to occur. They are the ultimate source of all new genetic material in a species. Although most mutations have no effect on the organisms in which they occur, some mutations are beneficial. Even harmful mutations rarely cause drastic changes in organisms. Q: A change in the sequence of bases in dna or rna is called a what? A:
OPTIONS:
- infection
- isolation
- accumulation
- mutation

Answer: mutation

Question: Answer the following question given this paragraph: Two water molecules contain 4 hydrogen atoms and 2 oxygen atoms. A mole of water molecules contains 2 moles of hydrogen atoms and 1 mole of oxygen atoms. Q: Two water molecules contain 4 hydrogen atoms and how many oxygen atoms? A:
OPTIONS:
- 1
- 4
- 6
- 2
Answer: 2

input with options: Answer the following question given this paragraph: In ex vivo gene therapy, done outside the body, cells are removed from the patient and the proper gene is inserted using a virus as a vector. The modified cells are placed back into the patient. Q: What is used as a vector for gene insertion in ex vivo gene therapy? A:
OPTIONS:
- typhus
- penicillin
- bacteria
- virus
output: virus

Problem: OPTIONS:
- cell membrane
- golgi apparatus
- cell wall
- cell nucleus
Q: Answer the following question given this paragraph: Eukaryotes evolved about 2 billion years ago. Unlike prokaryotes, eukaryotes have a cell nucleus. They have more structures and are better organized. Organelles within a eukaryote can perform certain functions. Some supply energy; some break down wastes. Eukaryotes were better able to live and so became the dominant life form. Q: Unlike prokaryotes, eukaryotes have what? A:
Answer:
cell nucleus