oxygen can only hold two bonds with other elements.
Answer:
Identical twins came from the same sperm and egg, so they have the same chromosomes and genes. So identical twins with identical DNA may have different genes turned on, causing them to look and act differently, and even to develop different diseases such as cancer.
Explanation:
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:
Bones that protect the internal organs
Explanation:
Your axial skeleton protects and cushions your brain, spinal cord and organs! <3
<h2><u>MITOCHONDRIA</u></h2>
Explanation:
<h3>Mitochondria are tiny organelles inside cells that are involved in releasing energy from food. This process is known as cellular respiration. It is for this reason that mitochondria are often referred to as the powerhouses of the cell.</h3><h2>____________________</h2><h2>FOLLOW ME</h2>