Answer:
Because the repetition of the experiment yields different results when they are realized by distinct groups of students
.
Explanation:
The students needs to repeat the experiment and increase the value of n (sample size) in order to obtain statistically significant results and thus confirm the working hypothesis.
Answer: The field is experiencing <em><u>Secondary succession.</u></em>
Explanation:
Ecological communities change slowly over time. While <em>primary succession</em> is initiated by pioneer species in areas that haven't previously been colonized; secondary succession always follows other communities. <em>Secondary succession</em> follows major disruptions in communities like fires, storms, flooding and even human disturbance.
The field becoming overgrown is typical of secondary succession. After years of disuse, the field is being occupied by species more <em>capable</em> of thriving in changed conditions. The community may be on its way to becoming a stable climax community if no further disruptions occur.
Answer:
A. NADH and FADH2 both donate electrons at the same location.
Explanation:
In the respiratory chain, four large protein complexes inserted into the mitochondrial inner membrane transport NADH and FADH₂ electrons (formed in glycolysis and the Krebs cycle) to oxygen gas, reducing them to NAD⁺ and FAD, respectively.
These electrons have great affinity for oxygen gas and, when combined with it, reduce it to water molecules at the end of the reaction.
Oxygen gas effectively participates in cellular respiration at this stage, so its absence would imply interruption of the process.
NADH and FADH₂ electrons, when attracted to oxygen, travel a path through protein complexes, releasing energy in this process.
The energy released by the NADH and FADH₂ electrons in the respiratory chain in theory yields <u>34</u> <u>ATP</u>, however, under normal conditions an average of 26 ATP molecules is formed.
If we consider that these 26 molecules are added to the two ATP formed in glycolysis and two ATP formed in the Krebs cycle, it can be said that cellular respiration reaches a maximum yield of 30 ATP per glucose molecule, although theoretically this number was 38 ATP per glucose molecule.
The correct answer is class.
Taxonomic category (rank) is the level of a group of organisms in a taxonomic hierarchy. The major ranks are domain, kingdom, phylum, class, order, family, genus, and species. Higher rank has more general characteristics of organisms. The lowest rank-species contains most specific descriptions of life forms in it.
Answer:
Even though matter can be found all over the Universe, you will only find it in a few forms Scientists will probably discover more states of matter as we continue to It's a fun state of matter when you remove almost all energy from a system.
Explanation:
