The correct answers are evolution, genetic mutation and selection.
The early ancestors of horses showed the pressence of digits and now the modern horses have hooves in their limbs. There could be many reasons for the pressence of hooves horses.
These could be due to the genetic mutations, which could have changed the shape of the digits in the limb. Sudden change in DNA can cause mutation and this mutation can change the phenotype of the horse.
There are chances that evolution took place over a period of time that changed the character in the horse.
Natural selection can also be one of the reason for the change in the phenotype of the digits on the limb of the horses.
Answer: Two electrons and a hydrogen ion
Explanation: The light reactions use solar power to reduce NADP+ to NADPH by adding a pair of electrons along with a hydrogen nucleus, or H The light reactions also generate ATP by powering the addition of a phosphate group to ADP, a process called photophosphorylation.
The correct answer would be A.
dose this Help?
Answer:
Please see below
Explanation:
In such a case, the data will indicate a positive trend towards the outcome predicted in the dependent variable. However, the data has to show a significant difference (as indicated by p value) between the measured variables for it to be a valid support of the hypothesis.
The answers are sympathetic nervous system and the parasympathetic nervous system, respectively.
The sympathetic nervous system (SNS) controls the response of our body to threats or stressors. It prepares the body for an intense physical activity by increasing the body's biological processes like heart rate, breathing and the like. This is also known as the "Flight-or-fight" response.
The parasympathetic nervous system (PNS) on the other hand, responds the opposite way. When threats or stressors are no longer present, the PNS works to relax and calm the body. This is done to help the body recover from the high activity it previously went through.
