Answer:
A. 25%
Explanation:
According to the diagram, a free earlobe is dominant and an attached earlobe is recessive. This means that the trait of attached earlobes are only shown when they the allele ff.
Only one of the four possibilities have the allele ff, meaning the percentage is 25%.
<span>Homeostasis Body's tendency to maintain a steady internal state; physiological equilibrium or balance around an optimal set point. [hot=sweat, cold=shivers]
Janice sweating on the treadmill in order for her body to cool off is an example of Homeostasis. Homeostasis is the body's ability to keep a steady internal temperature, state, equilibrium or balance around the ideal set point. This means when you are hot, you sweat to cool the body down and when you are cold your body shivers to help warm it up.</span>
Hi
The answer is false
When powdery mildew attacks grape plants, the mildew mainly target the vines and leaves
Answer:
Good
Explanation:
Because Co2 is only affected by the amount of rain in tropical forest
Answer:
FALSE
Explanation:
But carbon-14 dating won't work on dinosaur bones. The half-life of carbon-14 is only 5,730 years, so carbon-14 dating is only effective on samples that are less than 50,000 years old. Dinosaur bones, on the other hand, are millions of years old -- some fossils are billions of years old. To determine the ages of these specimens, scientists need an isotope with a very long half-life. Some of the isotopes used for this purpose are uranium-238, uranium-235 and potassium-40, each of which has a half-life of more than a million years.
