Answer:
The correct answer is - option B. the cell membrane is selectively permeable, which controls the movement of materials in and out of the cell by passive and active transport.
Explanation:
The cell membrane is the most essential cell organelle that is mainly responsible for the regulation of homeostasis of the cell. It acts as a barrier between the outer environment and cell components are enclosed in the cell organelles and cytoplasm by regulating the movement of the material in and out of the cell.
This movement can be active or passive transport depending on the nature of the material as it is a selectively permeable membrane.
The correct answer is - option B.
I'll try to get the answer.
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Answer:</h2>
Option A. Bacteria.
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Explanation:</h2>
- It is presumed that, over millions of years of evolution, abiotic molecules evolved into the self-replicating molecules by means of natural selection.
- Cyanobacteria, or blue-green algae is a bacteria which was one of the oldest fossils found on earth. These microbes conduct photosynthesis: using sun light, water and carbon dioxide to produce carbohydrates and oxygen.
- Cynobacteria played a major role in forming oxygenated atmosphere.
- The first living things on the planet Earths was single-celled micro-organisms which lack a well defined cell nucleus were known as prokaryotes, and bacteria belongs to prokaryotes ans hence among given options bacteria matches the most for the first life form on earth.
Result: Among the given choices bacteria was most similar to first living things on earth.
Answer:
Bacteria have a structure called a cell wall. Fungi and some ptotozoa also have cell walls. They are not the same as the plant cell walls made of cellulose. The other walls might be made from proteins or a substance called chiti
Yes because the cell that the organism is made out of is its life source. For example, bacteria is a single celled organism.