Arrow a should point to muscle tissue, arrow B should point to an organ, arrow c should point to organ system.
All amino acids are structurally the same, in that they contain a central carbon atom, an amine group, a lone hydrogen at. Our DNA is contained in our chromosomes. The thing that is different about each of the 20 amino acids is the make-up of the R group
Mitochondrial DNA --> Inherited from one's mother and is found outside of the cell nucleus (E.)
Genes --> The basic and fundamental part of heredity (B.)
Mitochondria --> The small structures in the cell that are responsible for creating energy and carry several pieces of DNA (D.)
Hybridization --> Binds together DNA with a complimentary DNA sequence (A.)
Polymerase chain reaction --> Creates strands of DNA from small samples of DNA at crime scenes (C.)
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Answer:
11. Something killed 90 percent of the planet's species approximately 250 million years ago, near the end of the Permian epoch. In the seas, just about 5% of animal species survived.
12. water bears, also known as tardigrades, are tough organisms that can withstand high temperatures.
13. DNA is found in every cell of every living creature, practically every cell in a multicellular organism has all of the DNA it needs.
14. Titan features a low-temperature version of Earth's water cycle, with liquid on the surface that evaporates, creates clouds, and then condenses to fall as rain—but the liquid is a mix of methane, ethane, and a trace of other hydrocarbons on Titan.
15. The Earth could not even support life at first. The atmosphere was devoid of oxygen, and the Earth's surface was scorching hot. The Earth gradually transformed over millions of years, allowing plants and animals to begin to grow. The Earth was then further altered by living organisms.
