Explanation:
cells have proteins called receptors that bind to signaling molecules and initially I ate a physiological response...because membrane receptors interact with both exteacellar signals molecules within the cell, they permit signaling molecules to affect cell function without actually entering the cell.
Answer: Option D
Explanation:
The embryonic induction can be defined as the critical part in formation of the other tissues and organs because one cells affects the development of the other cells.
In vertebrates the notochord arises from the dorsal organiser, in amphibian the organizer is a region of vertebrate gastrulae which is when transplanted into the ventral region of the host embryo stimulates the formation of second embryonic axis and neural tube in embryo.
This generation of second notochord in the an example of influence of one group of cell on other.
It a comet that streaks through earth atmosphere. Cause more than 90 percent of meteorites are of rock, while the reminder consist wholly or partly of iron and nickel
Cellular respiration gives off CO2