Answer:
Mutations in the HBB (beta-globin) protein causes symptoms of sickle cell disease.
Because few things about the human eye have changed throughout the course of human evolution. The entire human race learned to become truly bipedal, yet after millions of years, we still cannot see in the dark (like actual night vision). We still only have three cones/ color receptors in our eyes, the same range of unique eyes colors (controlled by melanin), shape and disorders. The human eye never even grows during your life; it is the same size when you are born to the day you die, with the exception of some deterioration. The nonexistence of change is why it is not considered evolution; to humans, there was no need for change as we had developed other ways to survive.
Answer:
A. the burned forest because the disturbance has removed competitors and made more resources available
Explanation:
An exponential growth refers to a rapid growth rate within a specific time limit.
Competition for limited resources by different plant species occur within an ecosystem, a form of relationship that limits the growth of all the parties involves.
When a disturbance regime within a forest removes some of the plant species within it, other species grows rapidly as a result of more availability of resources (than usual) due to reduced competition.
Hence, the correct option is A.
In an ecosystem, energy from the sun is transferred by way of consumption
2, plants and animals need oxygen to survive. Plants produce oxygen through photosynthesis and release the oxygen into the pond water.