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Strike441 [17]
3 years ago
8

Jorge is drawing an atomic model. The part of the atom that he has drawn is shown below. What does Jorge need to add to complete

his atomic model?
Biology
1 answer:
Kitty [74]3 years ago
8 0

Answer:

An atom is the smallest particle in a chemical element that holds its chemical properties. Although in the past it was thought impossible to break an atom, within modern chemistry we know that an atom is composed of subatomic particles, which compose the atomic model:

1) electrons, which have a negative charge, such a small size that it is immeasurable, and a mass much smaller than the other two subatomic particles; 2) protons, which have a positive charge; and 3) neutrons, which have no charge.

The protons and neutrons form a dense and massive atomic nucleus, which is called multipons nuclei. The electrons form a cloud of electrons that surround the nucleus.

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Suppose that Zonosemata flies whose own wings had been clipped and reattached were attacked more frequently than untreated Zonos
Vesnalui [34]

Answer:

(c)-All results for the experimental groups involving wing surgery would be invalid.  

Explanation:

The study researcher shown in the above question noted that flies that underwent wing surgery were more attacked than those that received no wing treatment. However, the researcher does not show the study variables and, consequently, does not show any relationship between the variables and the research result. For this reason, we can state that based on this result, all results for experimental groups involving wing surgery would be invalid.

8 0
3 years ago
If Tyler does not eat a diet that includes essential amino acids, his cells will not be able to build. . A.nucleic acids.. B.cer
Aleonysh [2.5K]
Answer: Certain proteins

Hope this helps!
Have a great day (:
5 0
3 years ago
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Ultraviolet (UV) radiation is damaging because it __________. View Available Hint(s)for Part A prevents DNA transcription preven
Lemur [1.5K]
It- damages the DNA in skin cells and produces genetic defects that can lead to cancer.
7 0
2 years ago
Choose the true statement(s) about mutations. To be marked correct, you'll need to select all true statements, as there may be m
Kazeer [188]

Answer

All four options ( A,B,C,D ) are true about mutations.

Explanation:

A-  <u>Mutation can provide an evolutionary benefits</u>

As mutation helps in creating DNA  sequence ,new allele(variant of gene) for a specific gene , thus mutations is known to be the first step of evolution.

B-<u> Mutation leads to genetic and phenotypic variation within the species. </u>

In mutation, genetic  variation (difference between individual/population) takes place as new alleles are created ,random matings ,fertilization and during meiosis , recombination of homologous chromosomes. One of the type of mutation called gene mutation give rise to genetic variations.

Its an exceptional case of phenotypic variations ,as mostly there is no effect of mutation on phenotypic variation. Very few mutations lead to phenotype variation and in case mutation takes place in phenotype variation ,making the organism well suited to the environment, the a rapid change  in the characterstics of the individual species is seen.

C- <u>In humans, the somatic cell mutation are not passed in offsprings. </u>

Somatic cells are present in all over the body except in the cells that give rise to gametes( ie. egg and sperm cells) and produces offsprings . Thus somatic cells are absent in gametic cells ,therefore mutation cannot be passed to human's offsprings or children.

D- <u>Evolution rates are faster in bacteria than in humans because most mutations in human cells are silent.  </u>

Due to their fast  growth ,bacteria evolve quickly and share genes with each other and even between the species ,also the mutation that are helpful spread faster in bacteria.  

In humans, the silent mutation in human cells cause many genetic disorders like Laron dwarfism.  About 99.8% genes are silent mutation.

7 0
3 years ago
How many different genotypes are possible from a cross between the parents RRYy and rrYY?
guapka [62]

Answer:

1 genotype is possible

RrYy

3 0
2 years ago
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