Answer:
Around 4.1 billion years ago, the first single celled life form appeared on Earth
Answer:
The arrow should be pointing from the producer towards the consumer.
Producer --> Consumer
Explanation:
The arrow represents the flow of energy in a food web. Producers are the first source of energy, as they make their own food. The energy is then transferred to the consumer when they eat the producer. For example, if a cow were to eat grass, the energy would flow from the grass to the cow. The arrow shows how this energy is flowing from the first source to the second.
I don't know what you have listed as your answer choices but: this fungus is still alive and able to reproduce.
Answer: ATP
Explanation: During cellular respiration, a glucose molecule is gradually broken down into carbon dioxide and water. Along the way, some ATP is produced directly in the reactions that transform glucose. Much more ATP, however, is produced later in a process called oxidative phosphorylation. Hope this helps
