soil has minerals in it. You can search what the minerals are in goo gle. the plants that grow on top of water has some kind of structure that helps it to float. you can look for the structure in goo gle. the structure is supposed to be waterproof and light and airy.
Answer:
Because their structures are different, both are proteins but are shaped in space differently, causing hemoglobin to saturate at high partial pressures of oxygen, and yield oxygen to the medium, while myoglobin at high partial pressures of oxygen will taking.
Explanation:
Hemoglobin has a tetrahedral form, while myoglobin contains a triad form of three main components and not 4.
In addition, myoglobin must capture oxygen to oxygenate the muscle in muscle contraction, since this demands the presence of this gas and the energy currency that is called ATP.
Answer:
here are some:
1) market failure, 2) the tragedy of the commons, and 3) the underprovisioning of public goods. One of the first principles of free markets is that for them to work effec- tively, the full costs of an activity must be borne by the involved parties.
Explanation:
hope this helps <3
Answer:
- New seedlings: histone acetylation
- After cold exposure: histone methylation
Explanation:
Vernalization is an adaptive mechanism whose objective is to ensure that flowering occurs only after winter (i.e., after cold conditions). In certain plants, this process (vernalization) suppresses the expression of genes that encode repressors of flowering. In <em>Arabidopsis</em>, vernalization is associated with histone modifications at <em>FLC</em> chromatin. The <em>FLOWERING LOCUS C </em>(<em>FLC</em>) is a MADS-box gene that acts as a repressor of flowering in <em>Arabidopsis</em>. Epigenetic modifications control the expression of the <em>FLC</em> gene. The <em>FLC</em> gene is expressed at low temperatures due to histone acetylation at <em>FLC</em> chromatin, and thereby the expression of <em>FLC</em> mRNA transcripts ensures that the <em>Arabidopsis</em> plant cannot flower. Subsequently, as the <em>Arabidopsis</em> plant is exposed to cold, <em>FLC</em> is repressed by the accumulation of trimethylation on lysine 27 of histone 3 (H3K27me3), thereby allowing it to flower when temperatures become warmer.
