Answer:
Environmental factors can influence natural selection because they can increase or decrease the amount of genetic variation in a population.
Explanation:
Natural selection is a process that involves the survival of species through changes in the expression of their genes, making possible the process of adaptation to environmental changes. It is one of the explanations for the biological evolution of species.
The second premise, necessary for natural selection to be possible, implies the existence of a variability (genetics) of traits among individuals in a population.
The other premises of natural selection are the faculty of traits to be inheritable and that genetic variability should lead to reproductive success and survival.
- <em>The other options are not related to the process of natural selection, since it is not possible for natural selection to increase or decrease the number of chromosomes, in addition to the fact that genetic variability must be observed in a population, not in a single individual, to be considered natural selection </em>
A doctor can use a 2D image model to show where the break is.
When a patient breaks a leg (the break could be as a result of fracture or bone dislocation), the doctor needs to scan the patient in order to determine the exact location of the break and the extent of the injury.
The gamma camera, x-ray machine and PET scanners are some of the devices that can be used to scan a bone.
Each of these devices uses 2D image technology to show the result of the scan.
So, a model that can be used by a doctor to determine the location of the break is 2D image.
Read more about bone breaks at:
brainly.com/question/24442936
Answer:
C) hematocrit is highest
Explanation:
The viscosity is the property of the fluid substance related to the flow of the resistance. The flow of the resistance increases when the amount of content in the fluid increases.
The flowing blood contains the water and the other components like the cells and proteins therefore it also exhibit the viscosity.
The viscosity in blood happens when the cells and molecules interact with each other therefore measure of these components indicated about the viscosity of the blood.
The hematocrit is the ratio of the proportion of the red blood cells present in the blood to the total volume of the blood.
The viscosity of blood, therefore, increases when the hematocrit is high and decrease when the hematocrit component is low.
Thus, Option-C is the correct answer.
Answer:
Mitosis ends with telophase, or the stage at which the chromosomes reach the poles. The nuclear membrane then reforms, and the chromosomes begin to decondense into their interphase conformations.
