If about 30% is A then 30% is T. That leaves 40% to be G + C...so each must be around 20%.
Answer:the species could be seperated by many differnt barreirs like a storm that destroys a habitat and the species is split up but this does not mean that a new species would develop.
Explanation:
This is because the only reason new speices would develop is if when they get seperated the species move to a new environment forcing them to adapt.
Answer:
<em>Some benefits of genetic engineering in agriculture are increased crop yields, reduced costs for food or drug production, reduced need for pesticides, enhanced nutrient composition and food quality, resistance to pests and disease, greater food security, and medical benefits to the world's growing population</em>.
Probaly abiotic would be the most likely answer in my opinion.