Answer:
He will use a radioactive element with a long half life of greater than 1 billion years
Explanation:
Rocks are an aggregation of solid mass which is usually rich in minerals. The age of rocks is established using radiometric dating method.
According to Oxford Dictionary, radiometric dating is "a method of dating geological specimens by determining the relative proportions of particular radioactive isotopes present in a sample."
The age of rocks can only be ascertained using isotopes that have very long half lives because many of these rocks are very old (aged billions of years) hence their age can only be determined using elements that has a half life greater than 1 billion years.
Genes are a unit of heredity that is transferred from a parent to the offspring and is held determine some characteristics of the offspring. Some genes include: the color of the eyes (whether you have your mother's or father's eyes) the hair color, and skin color.
Inherited traits means you received something from your parents, grandparents or other family members.
Acquired traits means a characteristic or trait that produces a phenotype that is a result of an environmental influence.Acquired traits are not coded for in the DNA of an individual and therefore cannot passed down to offspring during reproduction. <span />
The rate at which Tanya's turtle travels is 0.25mi/hr
This question is from a topic in mathematics called Rate.
<h3>Rate</h3>
This is a ratio in which different terms in different units are compared against each other.
In this question, for every 1/6 of an hour, the turtle is crawling 1/24 of mile.
Data given;
Let's express this mathematically
What this calculation shows is that the turtle travels at 0.25mi/hr
The rate at which the turtle travels is 0.25 miles in an hour or 0.25mi/hr
Learn more about rate here;
brainly.com/question/11408596
The elephant cell will have 20 chromosomes.
Cells undergo interphase before getting to the mitotic phase. At the S phase of the interphase, the amount of DNA in the cell is double by replication. However, the number of chromosomes remains intact.
Thus, the cell gets to the mitotic phase with the same number of chromosomes that is usually present in normal vegetative cells of the animal.
More about mitosis can be found here: brainly.com/question/13536882?referrer=searchResults
