BIOLOGY HIGH SCHOOL

To revolve means to __________.

Answers

Answer 1
Answer:

move in a circle on a central axis.
Answer 2
Answer:

move in a circle on a central axis.

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True or falce in a particular envionment two species can usually occupy the same niche
Hemophilia is an X-linked recessive condition in which blood does not clot properly. Queen Victoria of England had one allele for hemophilia. Most of her male descendants had the disorder, but few females had it.Why did hemophilia occur more frequently in Queen Victoria’s male descendants?
Drinking too much water during exercise can cause a condition in which the concentration of sodium in the blood is lower than normal. What response do you expect to happen as the body tries to restore homeostasis? Cells swell as water moves into them.Cells swell as water moves out of them.Cells shrivel as water moves out of them.Cells shrivel as water moves into them.

This is where the genetic information is found in a eukaryotic cell? A) nucleus B) cytosol C) mitochondrial D) endoplasmic reticulum

Answers

Answer: A. Nucleus

Explanation:

The DNA from Eukaryotic cells is stored inside the nucleus of the cell. The Nucleus is where all the genetic information is stored; also it is the place where the DNA is replicated during Mitosis or cell division. Just a curious fact, Mitochondria also have DNA on their interior.

In eukaryotic cells, all the genetic information, in other words, the DNA is found in the nucleus, where its arranged in chromosomes. Therefore, the answer is A).

In the other hand, in prokaryotic cells, it isn't inside any special structure. Instead, it's just dispersed through the cytoplasm.



Hope it helped,


BioTeacher101

When is a mutated gene most likely to be passed along to offspring over several generations? a. when the mutation is beneficial
b. when the mutations are substitutions
c. when there are multiple mutations in a gene
d. when the mutation is harmful

Answers

C
There is your answer
The correct answer is C because they are more likely to get passed on if there are more of them

Which of the following renewable energy sources can be used for electricity, vehicle fuel, and heat?a.wind
b.biomass
c.geothermal
d.water

Answers

The renewable energy source that can be used for electricity, vehicle fuel, and heat is B. biomass. This is the only option that can be used for all three choices, given that wind, geothermal sources, and water cannot be used as vehicle fuel yet, but biomass can, given that it contains stored energy already.
b. biomass hope this helps:)

Which one of the following types of microscope gives the highest amount of magnification?A. compound light
B. TEM
C. dissecting
D. SEM

Answers

Magnification is how large a microscopic image is compared to real life.  An electron microscope is more advantageous over a light microscope for use with very small objects because electron microscope provide higher resolution and magnification.  A light microscope such as dissecting and compound light microscopes are use for low magnification.  examples of electron microscope are Transmission Electron Microscope (TEM) and Scanning Electron Microscope (SEM). A SEM however offer 2 million as a maximum level of magnification whereas TEM offers up to 50 million.  therefore TEM gives the highest amount of magnification.
the answer is Electron microscope The scanning electron microscope(SEM) have the highest magnification. Its magnification varies from about 10 to 500,000 times

Fastest neurons can send impulses at miles per hour

Answers

The answer is 250 miles per hour.

To communicate, neurons send impulses to other neurons or muscle cells. Depending on the nature of information needed to be sent, some impulses are faster than the other. For example, if a person burns its hand, the information must be quickly sent to the central nervous system for quick reaction. Some impulses can achieve 250 miles per hour. But, for this, axon must be well insulated and very thick.

Which would least likely result from a chromosomal change?a.death of the cell or organism
b.no effect on the cell or organism
c.enhanced ability of the organism to reproduce
d.change to the phenotype of the organism

Answers

Answer;

c. enhanced ability of the organism to reproduce

Explanation;

-It is vital that humans have the correct balance of chromosome material. This is because the genes, that instruct the cells in our body, are found on the chromosomes.

-Any change in the number, size or structure of our chromosomes can mean a change in the amount or arrangement of genetic information.

-Human cells normally contain 23 pairs of chromosomes, for a total of 46 chromosomes in each cell. A change in the number of chromosomes can cause problems with growth, development, and function of the body's systems. These changes can occur during the formation of reproductive cells (eggs and sperm), in early fetal development, or in any cell after birth.

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