Answer:
People with sickle cell trait carry only one copy of the altered hemoglobin gene and rarely have any clinical symptoms related to the disease. In contrast, people with sickle cell disease carry two copies of the altered hemoglobin gene.
Explanation:
Answer:
The climate of Antarctica was probably much warmer in the past than it is today.
Explanation:
There are little things living there now. Coal takes millions of years to form. There must have been much more living things there in the past (when it was warmer) to make coal.
Answer:
The answer is D
Explanation:
Let's remember y=mx+b so know this equation y=2x since there is no base and there is no acceleration what so ever there is a constant.
Answer:
They create pressure to convert wildlife habitat into agricultural and urban land, and They produce wastes that pollute habitat and poison wildlife
Explanation:
A phylogenetic tree<span> or evolutionary </span>tree<span> is a branching diagram or "</span>tree<span>" showing the inferred evolutionary relationships among various biological species or other entities—their </span>phylogeny<span>—based upon similarities and differences in their physical or genetic characteristics.</span>
