Answer:
Radiocarbon dating
Explanation:
Scientists often date fossils using this method. Hope this helps.
Answer:
First, lets add the missing piece of information
a. He worked on the manuscript for three years.
b. It was successful.
c. It explained his theory of evolution.
d. It was based on his findings in South Africa.
The CORRECT ANSWER IS d.
d. It was based on his findings in South Africa.
Explanation:
On the Origin of Species was a book which main focus and central theme was focused on the observations that Charles Darwin noticed on the Galapagos Islands, which is in proximity and closeness to today's Ecuador - west of South America. The option d "it was based on his findings in South Africa." Is absolutely wrong since the study wasn't carried out in South Africa - as South Africa is a totally different continent.
C. Grapefruit juice with a pH of 3.0 because numbers less than 7 are more acidic.
The answer is; Sodium (Na+) and Potassium (K+) Ions
These cations are pumped out of the cell by Na+-K+ transmembrane protein pumps leaving the inside of the cell electronegative in relation to the extracellular matrix. This membrane potential is significant especially for neurons. Depolarization of the membrane enables transmissions of an impulse along the neurons.
The man couldn’t have fathered the following child.
<u>Explanation:</u>
The blood grouping system in humans is called ABO blood grouping. The possible blood groups of humans are A,B,AB and O. ABO blood grouping is an example of co-dominance where both alleles of the ABO gene are expressed equally.
The ABO gene has 3 alleles. They are I^A,I^B and i. the alleles I^A,I^B are dominant over i. Person with the genotype I^A I^A and I^A i has the blood group A while a person having the genotype I^B I^B and I^B i has the blood group B. The person with the blood group will have the genotype I^A I^B.
Here the mother’s blood group is O which means her genotype is ii. The man’s blood group is AB which means his genotype is I^A I^B. The possible genotypes of the children are I^A i,I^A i,I^B i,I^B i with respective phenotypes A, A, B and B.
There is no possibility that the child can have the blood group O which means that the man could not have fathered the child.