Sponges are the simplest bilateral animal and do lack a body cavity. A sponge has two layers of tissue.
Answer:
The frequency of the carriers (heterozygotes) in Massachusetts is 0.018
Explanation:
Due to technical problems, you will find the complete explanation in the attached files
Answer:
Active transport requires energy from ATP while facilitated diffusion does not
Explanation:
Active transport and facilitated diffusion with the use of channel and carrier proteins are both ways by which ions, polar and large molecules cross a selectively permeable membrane.
The major difference is that; Active transport transport these particles from a low to high concentration, which is against concentration gradient and hence, energy is required to perform the task
Facilitated diffusion transport from a high to low concentration, which is through a concentration gradient and hence, no energy is required to perform the task.
