Answer:
The facilitated diffusion is a type of passive transport affected by different factors including the temperature and the pH level. The facilitated diffusion process is produced by proteins that enable the movement of molecules between both sides of the cell membrane.
The pH level depends on the ion gradient and this factor modifies the diffusion rate of the buffers between both sides of the cell membrane. Moreover, the temperature is a factor that modifies the ionic charge of molecules, as well as the structure and the porosity of pores that facilitate the interchange between both sides of the cell membrane
Answer:
D. 100%
Explanation:
In humans, males have only one copy of the X chromosome in their cells. Therefore, human males express all the X-linked genes present on their X chromosomes irrespective of the recessive or dominant nature of the allele. This occurs since males do not have one more copy of the X chromosome to carry another allele for the gene. So, all the X-linked alleles present on the X-chromosomes of the human males are expressed.
For example, human males with genotype X^cY and X^hY express colorblindness and hemophilia respectively. Though, human females express these recessive X-linked disorders in homozygous genotype only.
They are all made of eukaryotic cells
Answer:
A . This is a positive feedback mechanism in which it is observed that the snowball increases in size with the bearing, thus the movement reinforces the size of the ball.
B .This is a negative feedback mechanism in which over time it is evident that iron levels in the body drop.
C . This is a negative feedback mechanism in which if more work is done at night the score will be decreased
D .This is also a negative feedback mechanism because when thyroid hormone levels drop, the hormone continues to decrease on its own.
E .This is a positive feedback mechanism in which sodium is observed as it passes through the cell membrane, making the process more active and causing more sodium to enter the cell.
