BIOLOGY HIGH SCHOOL

What happens to the energy during a chemical reaction?Energy is burned up by the reaction.

Energy is converted from one form to another.

Energy is created by the reaction.

Energy is used up by the chemical reaction.

Answers

Answer 1
Answer: B. 
The Energy is converted from one to another.
Answer 2
Answer:

The answer would be "B".

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Which is the significance of the tunica in plant growth? In the tunica, cell divisions are perpendicular to the stem axis, giving rise to thick layers of tissues covering the outside of the tip. In the tunica, cell divisions are parallel to the stem axis, giving rise to thick layers of tissues covering the inside of the tip. In the tunica, cell divisions are parallel to the stem axis, giving rise to thin layers of tissues covering the inside of the tip.
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Sir Arthur Conan Doyle's "The Contest" is a piece of historical fiction because it focuses on the historical figure of Nero and recreates ancient Rome and Greece. In the story, Doyle indicates that the Greeks took their cultural performances and art seriously and were good judges of art. Which of the following lines from "The Contest" best support that claim?A. ". . . but at the same time he understood that only a master of song could receive such a reception from a Greek audience." B. "Every Greek was a trained critic, and as unsparing in his hisses as he was lavish in his applause." "But now, as the man stopped and wiped the abundant sweat from his fat face, the whole assembly burst into a delirium of appreciation." C. "Soldiers ran to pull him down, and the whole audience was in confusion, some of the bolder cheering the sentiments of the shepherd, and others crying that he should be cast out of the building." D. "It was all simple and childlike, but it went to the hearts of the Olympians, for it spoke of the land which they knew and loved."
What type of cells is unspecialized and has not been differentiated for a specific function?

Describe how a person can count the rate if beating of the left ventricle.

Answers

To count the rate of beating. For instance, if the heartbeat is 70 beats per minute and the stroke volume is 70 cm 3, the cardiac output is 70 70 cm 3 per minute, or 4900 cm 3 per minute.

What is the left ventricle?

The heart's left ventricle is the chamber that pumps blood to all the arteries. The left ventricle is the name for the lower left chamber of the heart. The heart's left ventricle serves as its primary pumping chamber. Left ventricular hypertrophy can cause stiffening of the thicker heart wall.

Because the pressure at which this chamber pumps blood is the same as that in all arteries, you can compute beating by measuring the pulse in the radial artery in your wrist. This artery is easier to discover beating because it is closer to the surface.

Therefore, to count the rate of the beating of the left ventricle, cover SV with your finger, and you are left with CO/HR.

To learn more about the left ventricle, visit here:

brainly.com/question/15404103

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what is left ventricle:
it is the chamber of heart that supplies blood to all arteries...
how to calculate beating:
you can find it by calculating pulse in radial artery in your wrist...
reason:
the pressure with which this chamber pumps blood is the same that is in all arteries so the artery in your wrist is easy to find beating because it is nearer to the skin...

An organism is homozygous dominant for one trait and heterozygous for another. A scientist uses this organism in a dihybrid cross. How many different allele combinations can the organism produce for these traits in his or her gametes

Answers

Basically there are only 2 unique different allele combinations that this organism can produce in their gametes for these traits. They are AB and Ab.

Which structure or organelle is found in both prokaryotic and eukaryotic cells? A) ribosomes
B) chloroplasts
C) mitochondria
D) endoplasmic reticulum

Answers

Answer: Ribosomes

Explanation:

Eukaryotic cells contain membrane-bound organelles, for example animal cells and plant cells. While prokaryotic cells don't, for example bacteria.

Since chloroplasts, mitochondria and endoplasmic reticulum are membrane-bound organelles, which meas that these organelles are surrounded by a phospholipid bilayer, they are only found in eukaryotes.  

Endoplasmic reticulum is responsible for protein folding, modification and transport. Chloroplast is responsible for photosynthesis in plants, and mitochondria is responsible for cellular respiration. And, ribosomes is the organelle where protein synthesis takes place, and this happens in both Eukaryotic and Prokaryotic cells.
The ribosomes are found in both the prokaryotic and eukaryotic cell.

After Darwin proposed his ideas about natural selection as a mechanism for evolution, it took time before evolution was generally considered a theory. Why do we now refer to it as a theory?

Answers

Answer:

A scientific theory refers to the possible explanation of the natural event. It can be tested repeatedly and can be verified by anyone with the help of predefined sets of protocols and scientific experimentation.  

Similarly, Darwin proposed the idea of natural selection as the mechanism of evolution.  

Various experiments in labs, as well as observations made under natural conditions, proved that natural selection plays a major role in the evolution.

Examples may include industrial melanism of peppered moths, long neck of Giraffe, different shapes and sizes of beaks of Darwin finches et cetera.

This is why natural selection is considered a theory now.

Answer:

It is a fact and not a theory

Explanation:

A scientific theory is some natural phenomenon that has been tried and tested several times and backed by logical and testable observations and hypotheses in a way that  in future anyone can test it. It is not a guess or hunch but a concept explained with logic and backed by solid unvarying proofs.

In case of biological evolution, observations have been made and tested several times so that no more further testing or trying is required. Hence, by this logic evolution can be considered as a fact but it can not be considered as a theory.

Mapa conceptual sobre el microscopio

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