Mitochondria are often referred to as the powerhouse of the cell. They are small structures within a cell that are made up of two membranes and a matrix. The membrane is where the chemical reactions occur and the matrix is where the fluid is held. Mitochondria are a part of eukaryotic cells.
The main job of mitochondria is to perform cellular respiration. This means it takes in nutrients from the cell, breaks it down, and turns it into energy. This energy is then in turn used by the cell to carry out various functions.
Answer:
Many fossils of organisms that are no longer living have been discovered.
Explanation:
Mass extinctions could be first identified because of the traces they left in the fossil record. In the strata, the lower, older rock layer shows a diversity of fossil life forms, and the younger lawyer above is depauperate if we compare.
Answer:
The model of water from paper clips can be made as follows:
1) As a water molecule has a single atom of hydrogen, we can place the single green paper clip in the center. This green paper clip will depict a hydrogen atom.
2) As two oxygen atoms are present in a molecule of water we can place each of the two yellow paper clips at the sides of the green paper clip. These yellow paper clips will depict the oxygen atoms.
D) decreasing blood viscosity as blood will be lighter and easily movable hence an increase in blood flow
<h3><u>Answer;</u></h3>
<em>Common ancestry </em>
Similar DNA sequences in genes can be evidence of <u><em>common ancestry</em></u>
<h3><u>Explanation;</u></h3>
- <em><u>DNA molecules are fundamental molecules in organisms since they carry genetic information in living organisms.</u></em> DNA sequences similarity among various organisms may be used to establish evolutionary relationship among living organisms.
- <em><u>Many organisms have distinct DNA sequences, however, animals may share some specific types of genes which are similar genetically in the sequences of DNA. </u></em> Organisms or animals whose DNA sequences are similar share common evolutionary origin.