The electron transport chain refers to the transfer of
electrons from electron donors and electron acceptors. After the transfer of
electrons, these electrons then couple with protons (H+ ions) across a
membrane. In eukaryotic cells, electron transport chains occur within the
mitochondrial membrane where it serves as the site of oxidative phosphorylation
that uses ATP as its energy source.
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The molecular oxygen is the final acceptor of electrons in an
electron transport chain. This type of transport is used by the cell in
extracting energy through redox reactions that occur during photosynthesis,
sugar oxidation, and cellular respiration. </span>
Answer:
Hypothesized causes for the declines include habitat destruction (the most obvious cause), climate change, pathogens, introduced exotic species, pollution, and increased UV radiation. These agents may act alone or in combination to contribute to the decline of amphibian populations.
Explanation:
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For all organisms to survive, they start off with sunlight. That's the main and immediate source of energy to any organism(s).
Sunlight gives warmth and energy and light of course.
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Answer: 2
Explanation:
Because it is going from a solid to a liquid.
Answer:
It will cause an Aneuplidy , an abnormal number of chromosomes that cause a fail on the chromosomes to separate at meiosis.
Explanation:
Abnormalities in chromosome number are the most obvious chromosomal disorder and are referred to as aneuploidy. It`s a condition in which one or more chromosomes are present in extra copies or are deficient in number, but not a complete set.
The loss of a single chromosome from a diploid genome is called monosomy and the gain of one chromosome is called trisomy, caused by nondisjunction, which occurs when pairs of homologous chromosomes or sister chromatids fail to separate during meiosis.
Misaligned or incomplete synapsis, can cause nondisjunction.
The risk of nondisjunction increases with the age of the parents.
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