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lys-0071 [83]
3 years ago
12

When a hydrophilic signaling molecule binds to the extracellular portion of a membrane receptor on a new cell, how does the "ins

ide" of the cell know that the interaction occurred? (choose the one best answer)?
Biology
1 answer:
KiRa [710]3 years ago
5 0
I don't know the meaning
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In the Earth's mantle, heat is transferred in large convection currents. Within these currents,
yarga [219]

Answer:

D. hotter rock rises and cooler rock sinks.

Explanation:

We know that as we move <u>towards Earth's center</u>, the <u>temperature rises</u>. This rise in temperature causes rocks to melt (magma). The high temperature and melting of rocks <u>decrease the density of material </u>which makes it <u>move upward</u>. By <u>moving upward</u>, the molten rock <u>starts turning solid</u> and becomes <u>denser again</u>. Here, it <u>sinks back due to gravity</u>. This upward and downward movement of rocks due to density and temperature makes a convection cell.

PS: The formation of convection cells in Earth's interior is also the reason for plate tectonics.

3 0
3 years ago
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The cilia and flagella of eukaryotic cells are composed of _____. the cilia and flagella of eukaryotic cells are composed of ___
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Yea most Sedona and the
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3 years ago
Which of the following is nicknamed the "powerhouse" of the cell
Oduvanchick [21]

Answer:Mitochondria

Explanation:Mitochondria is the powe house of a cell

3 0
3 years ago
Step 1- Investigative Question
Anestetic [448]

Answer:

it will bonce because the vinegar absorbs into the eff and eats away at the hardness its just like water if you have ever boiled an egg the water gets inside a cooks the egg and this can be tested  

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3 years ago
Barred feather pattern is a Z-linked dominant trait in chickens. What offspring would you expect from (a) the cross of a barred
Bezzdna [24]

Answer:

Let the "barred" allele be caller B and the "non-white" allele b. Since chickens use chromosomes Z  and W to determine sex, hens would have chromosomes ZW, and roosters would have chromosomes ZZ. A Z-linked gene is represented as a superscript on the Z chromosome, Z^{B} for the dominant allele and Z^{b} for the ressesive allele.

A barred hen would have a copy of B on its Z chromosome, a non-barred rooster would have both copies of b on both Z chromosomes. Using Punnet squares to represent the crosses we get the following cases:

\begin{center}\begin{tabular}{ |c|c|c|c| }\ & Z^{B} & W \\ \ Z^{b} & Z^{B}Z^{b} & Z^{b}W \\ \ Z^{b} & Z^{B}Z^{b} & Z^{b}W \\ \end{tabular}\end{center}

That is a ratio of two barred heterozygote roosters to two non-barred hens. Crossing them we get:

\begin{center}\begin{tabular}{ |c|c|c|c| }\ & Z^{b} & W \\ \ Z^{B} & Z^{B}Z^{b} & Z^{B}W \\ \ Z^{b} & Z^{b}Z^{b} & Z^{b}W \\ \end{tabular}\end{center}

That is a ratio of one barred heterozygote rooster to one barred hen to one non-barred rooster to one non barred hen.

6 0
3 years ago
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