every cell has work to do but different cells may have different jobs in multicellular organisms, cell with the same type of job often work together. These group of specialized cell from tissue in turn, tissue often group together to form larger units called organs the heart is an organ; so is the stomach.
Answer is Nitrogen, atomic number 7
The atomic number of nitrogen is 7. Hence, the number of electrons in the nitrogen atom is 7. In the nitrogen, valance electrons are 3 in number in 2P orbital. Its valency is 3. Therefore, it can make three bonds with other elements which is highest among the given options.
The statement that best compares gymnosperms and angiosperms is : A. Both reproduce sexually, but gymnosperms contain only xylem and angiosperms contain xylem and phloem.
Gymnosperms produce exposed seeds, not enclosed in fruit whilst Angiosperms have Fruits, flowers, and endosperms as defining characteristics.
<h2>Modern Abiogenesis Hypothesis</h2>
Explanation:
- American physicists Harold Urey and Stanley Miller consolidated warm water with water fume, methane, smelling salts, and atomic hydrogen. These beat with electrical releases. These parts were intended to recreate the crude sea, prebiotic air, warmth, and lighting
- After seven days they found that basic natural atoms, for example, amino acids had framed
- Hence the Miller-Urey try effectively delivered atoms from inorganic parts thought to have been available on the prebiotic earth
- Hence, the right answer is "Modern abiogenesis hypothesis is based on Oparin- Haldane theory and Miller- Urey experiment"
Both internal and external factors are capable of regulating the cell cycle of a specific type of cell (Option a).
<h3>What is the cell cycle?</h3>
The cell cycle refers to the period of life of a cell from which it is generated until its division (cytokinesis).
The cell cycle of a cell is regulated by internal factors such as cyclins and kinases that phosphorylate specific proteins as well as external factors that trigger the cell division (e.g. temperature conditions).
In conclusion, both internal and external factors are capable of regulating the cell cycle of a specific type of cell (Option a).
Learn more about the cell cycle here:
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