membrane proteins are required for all membrane transport into and out of cells
In framing farmers use pesticides kill crop pests. But pesticides can have unexpected and unwanted effects on other organisms too. These chemicals harm other species living around the farm. Besides, farmers often use chemical fertilizers to increase the crop productivity but excess use of fertilizers can cause water pollution. Polluted water can kill fish and other aquatic organisms. In this way farming affects biodiversity.
The atom is made of three subatomic particles.
protons, neutrons, and electrons. The protons and the neutrons make up the center of the atom called the nucleus and the electrons fly around above the nucleus in a small cloud.
1. Organelles-. e.g. mitochondria, nucleus.
2. Cells- e.g. epithelial cells, palisade cells.
3. Tissues- e.g. muscles, connective tissue.
4. Organs- e.g. heart, liver.
5. Organ systems- e.g. digestive system, circulatory system
This is because there are many organelles inside a cell and a collection of same cells that creates tissues, a collection of tissues form organs, to carry out a particular function, and a collection of organs working together is an organ system. I think this is what they're after as I had a similar question a little while ago.
