Answer the following question given this paragraph: A: Another example of matter changing color is a penny changing from reddish brown to greenish brown as it becomes tarnished. The color change indicates that a new chemical substance has been produced. Copper on the surface of the penny has combined with oxygen in the air to produce a different substance called copper oxide. Q: What substance is created when a copper turns from reddish brown to greenish brown? Choices: - rust - copper alloy - iron oxide - copper oxide A:
copper oxide
Answer the following question given this paragraph: Vesicle transport into the cell is called endocytosis. The cell membrane engulfs the substance. Then a vesicle pinches off from the membrane and carries the substance into the cell. Q: What do you call vesicle transport into the cell? Choices: - passive transport - metastasis - dialysis - endocytosis A:
endocytosis
Q: Answer the following question given this paragraph: Q: What branch of science is the study of human origins? Choices: - biology - pharmacology - palaeobiology - paleoanthropology A:
A: paleoanthropology
Question: Answer the following question given this paragraph: Prenatal diagnosis refers to the diagnosis of a disease or condition before the baby is born. Q: What type of diagnosis happens before a baby is born? Choices: - maternal - fetal - postnatal - prenatal A:
Answer: prenatal
*Question*
Answer the following question given this paragraph: Hormones Maintaining homeostasis within the body requires the coordination of many different systems and organs. One mechanism of communication between neighboring cells, and between cells and tissues in distant parts of the body, occurs through the release of chemicals called hormones. Hormones are released into body fluids, usually blood, which carries them to their target cells where they elicit a response. The cells that secrete hormones are often located in specific organs, called endocrine glands, and the cells, tissues, and organs that secrete hormones make up the endocrine system. Examples of endocrine organs include the pancreas, which produces the hormones insulin and glucagon to regulate blood-glucose levels, the adrenal glands, which produce hormones such as epinephrine and norepinephrine that regulate responses to stress, and the thyroid gland, which produces thyroid hormones that regulate metabolic rates. The endocrine glands differ from the exocrine glands. Exocrine glands secrete chemicals through ducts that lead outside the gland (not to the blood). For example, sweat produced by sweat glands is released into ducts that carry sweat to the surface of the skin. The pancreas has both endocrine and exocrine functions because besides releasing hormones into the blood. It also produces digestive juices, which are carried by ducts into the small intestine. Q: In which specific organs are hormonal cells located? Choices: - mammary glands - lymph nodes - spinal cord - endocrine glands A:
**Answer**
endocrine glands
(Q).
Answer the following question given this paragraph: There are only about 25 living species of lancelets. They inhabit the ocean floor where the water is shallow. Lancelet larvae are free-swimming. The adults can swim but spend most of their time buried in the sand. Like tunicates, lancelets are filter feeders. They take in water through their mouth and expel it through an opening called the atriopore (see Figure below ). Lancelets reproduce sexually and have separate sexes. Q: How do lancelets reproduce? Choices: - asexually - parthenogenesis - aerobically - sexually A:
(A).
sexually