Common nekton include
a. tuna.
b. billfish.
c. jelly fish.
d. both a and b
e. both b and c
D
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In an experimental procedure, the researcher has established multiple levels of a chemical, or amounts of light, or some other factor at the beginning of the experiment, in order to determine if and how much the biological system responds. The manipulated factor at varying levels is the
A. Both control group and standardized variable are correct. B. control group. C. independent variable. D. standardized variable. E. dependent variable.
If the current trend continues, what do you predict the temperature anomaly will be in 2025?
A) 0 B) 0.6 C) -0.5 D) -0.2
A recessive allele on the X chromosome is responsible for red-green color blindness in humans. A woman with normal vision whose father is color blind marries a color-blind male
What is the probability that this couple's first son will be color blind? A) 1/4 B) 1/2 C) 2/3 D) 3/4
Who formalizes a set of criteria for determining the cause of infectious diseases. He proposed that for concluding that a microbe causes a particular disease, these criteria must be fulfilled.
A. Alexander Fleming B. Ignatz Semmelweis C. Louis Pasteur D. Robert Koch E. Joseph Lister