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Questions in biology

📝 Answered - Why would a scientist add a fluorescent jellyfish gene to a plasmid? A. To make the gene easier to photograph B. To determine if plasmid transformation has been successful C. To provide a way to insert the plasmid into the bacterium D. To ensure that the bacterial gene is incorporated into a plasmid

📝 Answered - Which of the following statements is true concerning fertilization in ALL animals? A) A single sperm must fertilize the egg. B) Fertilization must occur internally. C) Only gametes from the same species can go through fertilization successfully.

📝 Answered - Which organs are responsible for producing fluid to give sperm nourishment and motility? A. vas deferens B. testes C. seminal vesicles D. prostate glands

📝 Answered - Mark the sentences true (T) or false (F). 1. Terrestrial plants thrive in water habitats. 2. Plants found in mountains have needle-shaped leaves.

📝 Answered - 1. Name the four chambers in the stomach of ruminants. 2. Fill in the blanks. (a) The cud is stored in one of the chambers called the ______ to pick up the food. (b) Cows use their ______. (c) The process in which the food returns to the mouth from the stomach to be chewed completely is known as ______.

📝 Answered - 9) The alimentary canal and the associated glands together constitute the _______ system. 5) The other name for food pipe is _______.

📝 Answered - Research Pre-Lab Questions 1. What is taxonomy? Why is it used in science? 2. Who is Linnaeus? What was his contribution to taxonomy? 3. Explain how using a model can help you understand a complex topic in science. You may use an example to explain. Record your answers below.

📝 Answered - In which era did mammals emerge? A. Cenozoic B. Mesozoic C. Paleozoic D. Precambrian

📝 Answered - Across 2 The digestion process of breaking down food into simpler chemical compounds through enzymatic reactions (8) 4 The semi-fluid mass of partially digested food and gastric juices that is formed in the stomach and passed into the small intestine (5) 6 An enzyme that breaks down proteins into amino acids (8) 7 The involuntary muscle contractions that propel food and liquid through the digestive tract (11)

📝 Answered - List the most important points of cell theory. Name the scientists credited with this theory. When did they live?