Answer:
Secondary Succession is when an ecosystem dies then comes back after x time. While people expanding and growing across the planet, ecosystems are getting smaller and smaller. Grass growing through the cracks of a sidewalk is Secondary Succession. Secondary Succession takes a shorter time than Primary Succession, Primary Succession takes thousands of years while Secondary Succession takes a few hundred years.
Explanation:
Fire releases carbon dioxide, a key greenhouse gas into the atmosphere. The effect on the environment may be long-lasting and it could damage the surroundings.
A dna double helix consists of a purine base, such as adenine and guanine, paired with its complementary pyrimadine base, such as thymine and cytosine.
Adenine pairs with thymine; A-T
Cytosine pairs with guanine; C-G
