The embryo is under the influence of mechanical stress during its formation, the pressure exerted on a cell contributes to embryogenesis by promoting the expression of a fundamental gene in the differentiation of primitive embryonic tissues such as the mesoderm (one of the layers of the embryo).
Take the example of mesoderm, β-catenin, generally linked to E-cadherin, is a protein involved in cell junctions. A charge of 6 pN exerted on a cell is sufficient to remove the two proteins, thus allowing the migration of β-catenin towards the nucleus where it causes the coding of the mesodermic gene.
Covalent bond = a bond in which the electrons are shared by the partner atoms.
<span>Polar bond = simply a type of covalent bond in which the electrons are </span>
<span>shared but not equally. This happens when two different atoms come </span>
<span>together, such a C and O. Each atom has a different ability to draw </span>
<span>electrons to itself when it shares electrons (that drawing ability is </span>
<span>called Electronegativity). </span>
Answer:
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Explanation:
The answer is=>A. Grasses begin to grow in soil with organic matter.
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Some characteristics of plants that typically grow in the early and late stages of secondary succession are high respiration and photosynthesis.
<h3>Early and late stages of secondary succession plants?</h3>
Early succession plants are plants that exist or plants that sprout before any activity on farmland, they usually have a high rate of resource intake.
Typical examples are the weeds and grasses
Learn more about succession plants here:
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<span>Natural selection means that the individuals that are best adapted within a population are the ones that will survive.</span>