Question

2. How do plants survive inspite of being constantly eaten up by the animals?
B. What are necessary conditions for seed germination?​

Answer 1

Explanation:

Plants have evolved an enormous array of mechanical and chemical defenses against the animals that eat them.

Plant defenses include: Mechanical protection on the surface of the plant; complex polymers that reduce plant digestibility to animals; and toxins that kill or repel herbivores.

All seeds need water, oxygen, and proper temperature in order to germinate. Some seeds require proper light also. Some germinate better in full light while others require darkness to germinate. When a seed is exposed to the proper conditions, water and oxygen are taken in through the seed coat.

Answer 2

Answer:

2. Plants have evolved an enormous array of mechanical and chemical defenses against the animals that eat them. ... Plant defenses include: Mechanical protection on the surface of the plant; complex polymers that reduce plant digestibility to animals; and toxins that kill or repel herbivores.

B. All seeds need water, oxygen, and proper temperature in order to germinate. Some seeds require proper light also. Some germinate better in full light while others require darkness to germinate. When a seed is exposed to the proper conditions, water and oxygen are taken in through the seed coat.