B is the answer
That is correct
Maybe because food was here before the population even started to grow?♀️
Answer: The answer is B.
They can be any class of sugar glucose etc.
Crops that humans grow have decended from wild plants and are resistant to diseases and pest.
Explanation:
- The science of growing crops is known as agriculture.
- Humans have been developing agriculture since times immemorial.
- They have selected and cultivated crops that gave a better yield and developed new varieties by cross breeding Superior varieties with the inferior ones.
- Usually the cross bred varieties are cultivated and are resistant to pests and diseases.
Answer:
D.dragonfly larvae
Explanation:
For example ;
This is a simple food chain;
algae ⇒ mosquito larvae ⇒dragon fly larvae ⇒perch
Algae are the producers in the food chain above.
Mosquito larvae are the primary consumer in the above food chain.
Dragonfly larvae is the secondary consumer in the food chain which feed on the primary consumer.
The final level is perch, which is a carnivore .