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mote1985 [20]
3 years ago
13

How struggle for existence drove evolution of organism—————pleasee

Biology
1 answer:
omeli [17]3 years ago
3 0

Answer: In On the Origin of Species, Darwin claimed that there was a continual 'struggle for existence' in nature, in which only the fittest would survive. This theory came partly from his reading of Thomas Malthus's Essay on the Principle of Population.

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A client is taking fluphenazine. the nurse understands that teaching and discharge instructions are understood when the client s
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6 0
2 years ago
What is the difference between a dominant and recessive trait? How are each trait's symbolozed?
velikii [3]
The difference between a dominant trait and a recessive trait is that the dominant trait must have one copy of each from two different parent
Example: Brown Hair=H
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4 0
3 years ago
A new moon occurs once every 29.5 days. Why must the Sun, Earth, and the Moon be aligned in order for the new moon to occur
Vsevolod [243]

Answer:

The sun, Earth and the moon are aligned, but because the moon's orbit is not exactly in the same plane as Earth's orbit around the sun, they rarely form a perfect line. When they do, we have a lunar eclipse as Earth's shadow crosses the moon's face.

Explanation:

4 0
3 years ago
Does the size of the particles change as a substance changes state
Kazeer [188]
Ok, particle is not a very nice word, no real sense of size associated with it
it can be a group of molecules like a speck of sand
referring to the molecules themselves
or refering to the atoms that make up the molecule

now in terms of phase change,
if we consider a speck- a group of molecules- then solids will expand when heated, however this definition falls flat in terms of phase change

ok, how about molecules, as molecules undergo phase change, the molecules in relation to each other will move apart from one another. Solid- molecules are bonded, Liquids- molecules are close and flow around each other, Gas- molecules are a significant distance from one another. But the increase in size when you heat up a molecule, i would have to say yes. adding heat increases energy which increases molecular vibration which would probably  increase the overall average size to some unnoticeable degree.

now standalone atoms are just atoms, if you want to consider the electron cloud as size, then heating it up would negligibly cause the outer move outward. but it really depends on the scale of the question
7 0
3 years ago
If sodium ions are moving from outside the cell to inside the cell where there is a greater amount of sodium ions, which type of
zimovet [89]
The correct answer is 'Active Transport'. when the concentration of particles is higher inside the cell and yet for proper functioning we need more ions, the ions are received by the cell by the means of active transport, in which dissolved substances are moved by the help of carrier proteins with the energy released from respiration.
6 0
3 years ago
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