TAXONOMY is the science of naming and classifying organisms based on structural comparisons and genetic evidence.
Taxonomy is the field of study aimed at naming, describing and classifying all forms of life.
Characters used for descriptive purposes are called taxonomic characters. A character can be defined as any phenotypic trait of an organism, which can be measured and/or weighed.
Molecular taxonomy uses the genetic information contained in the DNA molecule to establish relationships between species.
In conclusion, TAXONOMY is the field of study used to name and classify organisms based on structural comparisons and genetic evidence.
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B. DNA molecules
C. RNA polymerase
D. proteins
Answer: The answer is A. RNA molecules
Explanation:
Answer:
Guard
Explanation:
The opening between guard (pores) cells is known as stomata. The stomata helps in diffusion of atmospheric CO2 into leaf's interior and also involved in loss of water by plant leaves through transpiration. The opening and closing of stomata is controlled by guard cells.
Guard cells control the opening and closing of stomata by becoming turgid or flaccid because of potassium ions. The water potential decreases by increasing the solute concentration and water always flow from higher potential to lower potential. Remember maximum water potential is zero.
When potassium ions concentration increases inside the guard cells, water follow the potassium ions and guard cells become turgid which cause the opening of stomata. On the other side when the potassium ions concentration decreases inside the guard cells the water leaves the guard cells and guard cells become flaccid causing closing of stomata.
The nucleus is often considered to be the cell's control center. 2. The cytoplasm consists of everything inside the plasma membrane of the cell. 3. The plasma membrane forms a barrier between the inside and outside of the cell. 4. The cytoskeleton is essentially a "skeleton" inside the cell. 5. The rough endoplasmic reticulum is covered with ribosomes. 6. Lysosomes use enzymes to break down foreign matter and dead cells. 7. Plant cells specifically have a cell wall, a large central vacuole, and chloroplasts.
1. The nucleus
The nucleus is often considered to be the cell's control center. It contains the cell's genetic material and directs the cell's activities.
2. The cytoplasm
The cytoplasm consists of everything inside the plasma membrane of the cell. It contains various Organelles and provides a medium for cellular processes.
3. The selectively permeable barrier
The plasma membrane forms a selectively permeable barrier between the inside and outside of the cell. It controls the movement of substances into and out of the cell.
4. The cytoskeleton
The cytoskeleton is essentially a "skeleton" inside the cell. It provides shape, structure, and support to the cell.
5. Ribosomes
The rough endoplasmic reticulum is covered with ribosomes. Ribosomes are responsible for protein synthesis.
6. Enzymes
Lysosomes use enzymes to break down foreign matter and dead cells. They are involved in cell digestion and waste disposal.
7. Plant
Plant cells specifically have a cell wall, a large central vacuole, and chloroplasts.
The cell wall provides structural support, the central vacuole stores water and nutrients, and chloroplasts are involved in photosynthesis.
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Answer: this are no options on this question.Here are some facts about the carbon cycle-
It involves the circulation of the element carbon
It ensures that the element is constantly being reused.
Explanation:in nature, nutrients move through the biosphere.it involves movement from the environment eg the air,soil etc, to the organism in a cyclic matter.this cyclic movement ensures that the nutrients are not exhausted and are continually reused.examples of nutrients that undergoes such cycles are carbon, nitrogen etc.
Water too had it's cycle in nature.
In The carbon cycle, carbon dioxide is taken up by autotrophs to produce carbonhydrate. Then heterotrophs takes up the carbonhydrate found in plant .then carbon dioxide is given off and the plants takes up this carbon dioxide for photosynthesis and the process continues.
Carbon can be also returned to the atmosphere by combustion of wood and coal .
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Most found in the sunlit (euphotic) zone of the ocean
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