Answer:
There is no enough data on Earth's temperature before life appeared.
Explanation:
Fossils and rocks identical to each other wet found on separate continents because rocks and the animals that formed those fossils can't swim the logical explanation was that the continents split after the rocks and fossils were formed
The answer is 99.
Amino acids <span>contain a carboxyl group (carbon-containing) and an amino group (nitrogen containing). Proteins are made by forming peptide bonds between the carboxyl and amino group of amino acids.
</span>If a protein is made of 100 amino acids, that means there are 99 peptide bonds (because the last, 100th amino acid will not bind the next (101st) amino acid). For each peptide bond that is created, one oxygen atom and two hydrogen atoms are taken. Therefore, one water molecule is created for each peptide bond. If there are 99 peptide bonds, 99 water molecules are created.
Answer: Option D) is where cellular respiration occurs.
Explanation:
The mitochondria of the cell is a double-membraned organelle and serve as a site of respiration in plant and animal cells.
Thus, the generation of energy in form of ATP molecules occur within the inner membrane of the mitochondria.
Answer:
1/4
Explanation:
Let the earlobe allele be represented by A. since the attached earlobe is the recessive trait, the genotype would be aa while the free earlobe would be AA. The heterozygous condition would be Aa.
Two individuals heterozygous for free earlobes mated:
Aa x Aa
AA Aa Aa aa
AA and Aa = Free earlobe = 3/4
aa = attached earlobe = 1/4
<em>Hence, the probability of the couple having a child with an attached earlobe is </em><em>1/4.</em>
