DNA??? I’m not sure but I’m saying DNA hope I helped!
The oxygen can affect in the carbon cycle
Answer:
Lignin is found in plant cell wall, particularly in middle lamella of cell wall (eg. sclerenchyma tissue).
<u>Role of lignin in plants:-</u>
- It helps in conduction of water.
- It provides mechanical support to the plant.
- It also nurtures resistance to many kinds of stress.
Answer:
А. They belong to the same group of the periodic table.
Explanation:
Two elements possess similar chemical properties if they belong to the same group on the periodic table.
What determines the chemical properties of elements;
→ the number of valence electrons an element contains determines its chemical properties.
- On the periodic table, groups are vertical arrangement of elements.
- Periodic groups classifies elements into groups based on the number of valence electrons they contain.
- So, elements in the same group will have the same number of valence electrons and hence similar chemical properties.
