Answer:
The outer covering of plant cell that surrounds the plasma membrane of the plant cell is known as cell wall.
Explanation:
Functions of cell wall
1 Cell wall provides mechanical strength to the cell and also makes the cell rigid.
2 Cell wall protect the cell during change in the osmotic pressure.On the other hand it can be stated that cell wall protect the cell from osmotic lysis.
Answer:
The conditions for natural selection are:
- overproduction of offspring
- variation among organisms in a population
- favorable adaptations selected by nature
Explanation:
- Natural selection is the continuous process of reproduction and survival that is caused by the contrast and differences due to phenotype.
- Overproduction of species creates the competition and only the one survived through the natural selection grows to the next generation.
- Similarly variations in the phenotypic organization of species, their adaptation process etc causes the natural selection.
- Natural selection is the gateway for the evolution.
Sunlight and h20 and co2 are present
Evidence
Hope this helps. Have a great day! :)
Answer:
there are 4: paracrine signaling, autocrine signaling, endocrine signaling, and synaptic signaling
Explanation:
paracrine:cells that are near one another communicate through the release of chemical messengers
autocrine: a cell signals to itself, releasing a ligand that binds to receptors on its own surface
endocrine:When cells need to transmit signals over long distances, they often use the circulatory system as a distribution network for the messages they send.
synaptic: nerve cells transmit signals. The junction between two nerve cells where signal transmission occurs.
