Biology Practice: Introduction to Biology (Mock Test 4 - Expert: Experimental Logic & Data)
1. In an experiment to test the effect of a new fertilizer on plant growth, which of these is the "Independent Variable"?
2. A researcher observes that a specific bacteria double every 20 minutes. At this rate, how many bacteria will be present after 1 hour if the initial count was 100?
3. Why must a biological hypothesis be "falsifiable"?
4. In clinical trials for a vaccine, a "Placebo" is given to the control group. The primary reason for this is to:
5. Which branch of biology would be most involved in analyzing DNA samples from a 10,000-year-old woolly mammoth found in permafrost?
6. If a microscope has an eyepiece of $10x$ and an objective lens of $45x$, what is the total magnification of the specimen?
7. A "Biotechnologist" inserts a gene from a cold-water fish into a tomato plant to make it frost-resistant. This tomato is now classified as a:
8. When conducting an experiment, "Qualitative Data" refers to:
9. "Peer Review" in biological journals is critical because it:
10. An "Epidemiologist" is most likely to be employed during:
11. Why is the study of "Ethology" (animal behavior) important for conservation biologists?
12. Which of the following represents a 'Bioethical' issue in modern biology?
13. In a data set of [2, 4, 4, 6, 9], what is the 'Median' value?
14. Which scientific tool is used to separate cellular components based on their density using high-speed rotation?
15. A "Model Organism" like *Drosophila melanogaster* (fruit fly) is used in laboratories because:
16. The use of "Radioactive Isotopes" in biology is a technique mainly used to:
17. In a 'Double-blind Study', who knows which participants are receiving the actual treatment?
18. "Biopiracy" refers to the unethical practice of:
19. If a biological theory is supported by a vast amount of experimental evidence over many decades, it may eventually be termed as a:
20. What is the most critical step in avoiding "Experimental Bias"?
