Answer:
<em>The correct option is A) cadmium dosage</em>
Explanation:
In an experiment, an independent variable can be described as a factor which is changed naturally or by us to see its effect on the dependent variable. The dependent variable is the variable which is under study and depends on the independent variable.
In the following experiment, we are checking the effect of different dosages of cadmium on the surviving ability of tadpoles. Hence, cadmium dosage is the independent variable. Tadpole population is the dependent variable.
I) I think four gametes are possible in either a male or a female. That is; GY, gY, Gy, and gy.This is because both traits are heterozygous which means for a certain gene there are two different alleles. While in the case of homozygous there would only be one type of gametes since for a given gene there are two similar alleles. ii) I think crossing over or recombination could cause the alleles that are linked with the wing color and the eye color genes to be exchanged between the two chromosomes in a pair, thus, resulting to new combinations of alleles. The final result would then be an increase in possible genetic variation.
Humans would be the answer for this question
B. the warmer air contains more water vapor per unit of volume
Answer:
Active transport
Explanation:
Facilitated diffusion and simple diffusion don't require any action from the cell to occur. Active transport is the only type that requires the cell to use energy.
