This measures the probability of an interaction occuring. For typical interactions between ions and electrons, or between two nuclei, these cross sections are generally measured in barns. (Science: anatomy) a transverse cut through a structure or tissue. The opposite of a cross-section is a longitudinal section.
Answer:
The correct answer will be- Option-4
Explanation:
Carl Woese is well known for dividing the five-kingdom system into three domains: Archaebacteria (ancient bacteria), Eubacteria and the Eukaryotes on the basis of the studies of the ribosomal RNA.
Since the three-domain system does not include the cyanobacteria group which includes the photosynthetic bacteria therefore, the Cyanobacteria is the correct answer.
Thus, Option-4 is the correct answer.
Answer:
The correct answer will be option-A.
Explanation:
Oxidative phosphorylation is a process which leads to the formation of ATP molecule. During oxidative phosphorylation, the transfer of electrons from reducing equivalents like NADH and FADH₂ formed during cellular respiration to oxygen leads to the formation of ATP.
Since oxidative phosphorylation involves the transfer of electrons from these equivalents through the electron transport chain which takes place in the inner membrane space of mitochondria. Therefore, oxidative phosphorylation and electron transport chain are interlinked.
Thus, option-A is the correct answer.
Answer:
B: Freshwater biomes are a vital source of drinking water.
Explanation:
It's not A because oceans are part of marine biomes, and oceans contain 97% of the Earth's water and covers 71% of the Earth's surface.
It's not C because marine biomes supplies more oxygen than freshwater biomes. Marine algae supply much of the world's oxygen supply, and they take in a huge amount of atmospheric carbon dioxide.
It's not D because freshwater biomes include streams, rivers, ponds, and lakes. Aquatic biomes include oceans, coral reefs, and estuaries.
It's B because freshwater biomes are very important to our survival because they supply people with more than half of their drinking water.
