two strands of DNA are held together by weak hydrogen bonds.
They have scales instead of skin or fur, as well as some being able to swim in water and walk on land. Many are poisonous and have several different tactics for catching prey from insects to small creatures like birds or mice. The Komodo dragon is a large reptile that has poisonous saliva which it uses to stun its prey.
The second one hope that helps
2. Cell (Plasma) membrane
4. A cell membrane is made of phospholipids, is flexible, and is found in animal cells. A cell wall is made of cellulose, is rigid, and is found in plant cells.
