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Questions in biology

📝 Answered - Orchids are a recently evolved plant that have a novel feature known as aerial roots. What is the most likely function of an orchid's specialized roots? A. Aerial roots are the site of energy synthesis. B. Aerial roots allow the orchid to attach itself to trees. C. Aerial roots produce food for the orchid through photosynthesis. D. Aerial roots anchor the orchid to the ground.

📝 Answered - The cochlea in the ear contains: A. Hair cells for detecting sound B. Taste buds C. Fluid sensors D. Pain receptors

📝 Answered - How does base pairing differ in RNA, compared to DNA? A. U pairs with G B. U pairs with C T pairs with U D. A pairs with U

📝 Answered - Which of the following bacteria will give positive results for the Coagulase test? A. S. epidermidis B. S. Prophyticus C. S. aureus D. S. hominis

📝 Answered - Which of these blood vessels does not return blood into the right atrium? A. pulmonary trunk B. inferior vena cava C. superior vena cava D. coronary sinus

📝 Answered - All experiments start with a question. In order to formulate a hypothesis, or make a prediction about the outcome of an experiment, the question must be testable. Testable questions are those questions that can be answered through experiments and observations. They involve measurable variables and lead to observable outcomes that can be recorded and analyzed. On the other hand, non-testable questions usually involve opinions, personal beliefs, or other concepts that cannot be objectively quantified or measured. Which of the following questions is testable? (select all that apply) A. Am I a good singer? B. Why are daffodils the best flowers? C. Does the amount of sunlight affect the growth rate of tomato plants? D. Does changing the shape of a plane's wings affect its ability to fly? E. What is the meaning of life? F. Do different liquids freeze at different temperatures?

📝 Answered - Which of the following is needed for cellular respiration to occur? A. Sodium B. Oxygen C. Water D. Nitrogen

📝 Answered - Environmental factors can influence natural selection because they can increase or decrease A. the number of chromosomes in an individual. B. the number of chromosomes in a population. C. the amount of genetic variation in an individual. D. the amount of genetic variation in a population.

📝 Answered - What role do neurons play in the process of learning? A. They send out electrical activity and create networks that support learning. B. They help remove unwanted information. C. They cause the brain to grow physically in size. D. They prevent the formation of memories.

📝 Answered - Which statement describes the location of a chromosome? A. in the DNA B. in a nucleotide C. in the nucleus D. in a gene