This is true.
Facilitated diffusion is a process by which molecules are transported across the plasma membrane with the help of membrane proteins.
It is a type of passive transport in which no energy from the cell is required for the process because a concentration gradient exists that allows movement of particles without expending cellular energy.
Materials diffuse across the cell membrane with the help of membrane proteins some of which are known as carrier proteins.
Membrane proteins are proteins that are attached to, or associated with the membrane of a cell or an organelle.
A. Phosphorus
Over 44 years, Dr. Schindler and his team tested the effects of phosphorous, nitrogen, and carbon on algae growth. Their research showed that phosphorus, and not carbon or nitrogen, increases algae growth in aquatic ecosystems.
Between 2013 and 2040, the resourceful gas company has in creed so it would be that it's up to 80% at the most
Answer:
The likely cause is pathogenic bacteria.
Explanation:
The pathogenic bacteria are bacteria that cause food poisoning through the contamination of food by faeces. Examples include Salmonella typhi, E. coli, Clostridium botulinum e.t.c.
This means that they are contacted through faecal oral route.
Answer:
Explanation:
It is estimated that the Precambrian Era lasted between 3.9 and 4 billion years. Many scientists believe that this era accounts for 90 percent of the world's history.
