<span>Yes, if the photo receptor cells and simple eyes that preceded it were useful to the animals in which they arose.</span>
As any other ancient civilization, the Sumerians were traders as well. And they had a few good reasons to do this.
Because they traded, their trading partners were less likely to attack them, because it would hurt their economy as well. Furthermore, they didn't produce everything they needed and traded those goods with goods which they produced too much of.
And lastly, through trade they could also get exotic goods which they would have never gotten otherwise.
Answer:
The correct model is D.
Note: The first attachment below shows the different models. The second attachment shows the correct structural model of the water molecule.
Explanation:
A water molecule is composed of one atom of oxygen and two atoms of hydrogen.
A water molecule is polar, i.e. it contains positively and negatively opposite ends. The polar nature of the water molecule is due to strong electronegativity of oxygen which results in an uneven sharing of the bonding electrons between oxygen and hydrogen. The oxygen atom attracts the shared electrons more to itself, thereby, it acquires a partial negative charge, while the hydrogen atoms acquire a partial positive charge.
The bond angle between the oxygen and hydrogen atoms is approximately 105°. Therefore, from the first attachment below, the correct model for the water molecule is D.
Answer:
The conversion of light energy to glucose. (Conversion of energy from one forum to another)
B.) Cohesion
Explanation:
The best term that fits the description of the term surface tension of water is cohesion.
Cohesion is the intermolecular forces that holds together the particles of liquids and solids.
- Surface tension is a phenomenon in liquids that causes them to come together more and shrink on the surface.
- Surface tension is made possible by cohesive forces between water- water molecules.
- Adhesion is between different molecules like water and glass.
- In capillary action, a liquid is able to rise up in a column
- Sublimation is a phase change from solid to gas.
learn more:
Capillary action brainly.com/question/1799421
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