1.The nucleus is often considered to be the cell's control center.
(because it contains the DNA)
2.The cytoplasm consists of everything
inside the plasma membrane of the cell.
(actually it excludes the nucleus)
3.The plasma membrane forms
a boundary between the inside and outside of the cell. - it controls what can enter and what can't!
4.The cytoskeleton is essentially a "skeleton" inside the cell..
it maintains the form of the cell
5.The
rough endoplasmic reticulum is covered with
Ribosomes -they make the proteins!
6.Lysosomes
use enzymes to break down foreign matter and dead cells.
7.plant cells cells specifically have a cell wall, a large central
vacuole, and chloroplasts.-choloplasts are only found in plants!
Air pollution. industrial pollution.
Answer:
9N down
Explanation:
The net force on the ball dropped has a magnitude of 9N and it is directed downward.
Given;
Gravitational force = 10N down
Air resistance = 1N up
<em>Air resistance is an opposite force that acts against a body passing through air. It is a negative force. </em>
<em>Gravitational force is a force acting on a body due to gravitational attraction of the earth.</em>
Net force = Gravitational force down - Air resistance up
= 10N - 1 N
= 9N down
The net force is 9N downward.
Answer:
Population of lions are more than cheetahs and zebras.
Explanation:
The chart provides information about the population sizes of Lions, Cheetah and Zebras. According to this information, population of lions is the greatest as compared to Cheetah and Zebras. This is due to suitable conditions for the lions such as food and shelter etc in that jungle of Africa as well as strong competitor and its aggressive behaviour make them successfully survive and increase its population in the jungle.
Answer:
1.b.) the role that an organism plays in the environment
2. d.) marshes and ponds
3.d.) both positive and negative
Explanation:
