Argon is a chemical element which is a gas at room temperature, has 8 valence electrons and 22 neutrons. This element belongs to the noble gas elements group.
Noble gas is any of the rare gases that include helium, neon, argon, krypton, xenon, and sometimes radon also and that exhibit great stability and extremely low reaction rates than other elements in the periodic table.
Argon is a chemical element with the symbol Ar and it has an atomic number of 18. It is in the group 18 of the periodic table and it is a noble gas. Argon is the third-most abundant gas in the Earth's atmosphere, at 0.9340 ppmv. It is more than twice as abundant as that of water vapor, 23 times as abundant as carbon dioxide, and more than 500 times as abundant as neon gas. Argon is the most abundant noble gas in the Earth's crust, which comprises about 0.00015% of the crust.
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Answer:
Argon
Explanation:
b. Wheat and corn are common products of tropical plantations.
c. Most crops from tropical plantations are exported.
d. Cocoa, coffee and tea are common products of tropical plantations.
The right option is; b.
Wheat and corn are common products of tropical plantations is not true concerning tropical plantations.
Tropical plantations is a type of agriculture in which perennial plants are grown for several years. Tropical plantations are usually practiced in regions with humid, tropical climates and plants such as cocoa, coffee, tea, coconut, rubber and oil palm are the common crops that are cultivated. The crops are mostly exported and they serve as important source of income. Wheat and corn are not common products of tropical plantations .
Answer:
B
Explanation:
Answer:
The separation of sister chromatids occur duringanaphase.
Explanation:
Sister chromatid is the single half copy of a chromosome. Two sister chromatids are joined together by the centromere.
Anaphase stage of cell division ( mitosis and meiosis) leads to the separation of sister chromatids. Two important enzymes involved in the process of sister chromatid separation are securin ans separase.
Thus, the answer is anaphase.
Anaphase is a crucial stage of cell division, occurring after metaphase and preceding telophase. Sister chromatids separate during cell division in a process called "anaphase."
Anaphase is a stage of both mitosis and meiosis where the sister chromatids, which are replicated copies of a chromosome held together by a structure called the centromere, are pulled apart and move toward opposite poles of the cell. This separation ensures that each resulting daughter cell receives a complete set of chromosomes. Once the sister chromatids are separated, they are considered individual chromosomes, and the cell division process continues with the formation of two new daughter cells.
Therefore, sister chromatids separate during cell division in a process called "anaphase."
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Answer: Codominance (apex)
Answer: Homeostasis allows organisms to regulate their temperature
Explanation: