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miskamm [114]
3 years ago
11

A student collects a sample of water from a pond near her home. She

Biology
1 answer:
son4ous [18]3 years ago
7 0

Answer:

A. Each organism had a different parent that passed on a set of unique genetic instructions.

Explanation:

Organisms can either be single-celled or multicellular. According to this question, a student collects a sample of water from a pond near her home. She then examines a drop of the water under a microscope and noticed it contains four very differently shaped single-celled organisms.

The single-celled organisms are of different shapes because they are from different parents, which passed on a set of unique genetic instructions via their genes to them. Organisms of the same species from the same parent will possess the same shape because they contain same gene which makes them look and behave similar.

However, in this case, the four different shaped single-celled organisms are of DIFFERENT SPECIES and hence, contain individual unique genes that makes them so

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The appendages of cockroaches and turtles are modified for creeping movements, but their internal structures are completely diff
marshall27 [118]
The answer is convergent evolution. 


<span>A convergent evolution is a phenomenon of independent evolution of similar traits in species that are in different lineages. These traits are called analogues structures. They are similar in form or function but were not present in the last common ancestor of those species. So, t</span><span>he appendages of cockroaches and turtles are analogues structures with the similar function - creeping movements, and they are the result of the convergent evolution.</span>

6 0
3 years ago
if a person wanted to learn more about the genetic material of plant and animal cells, where would they look?
Genrish500 [490]

Answer:

The cell organellles are visible in the electron microscope, but it is not possible to study the living cells in electron microscope. For study of genetic materials i.e., DNAs and RNAs is poosible through the help of electron microscope.  (ANSWER)

Explanation:

3 0
3 years ago
What is the relationship among chromosomes, genes, and DNA? a. Genes read the DNA code found on chromosomes. Chromosomes are lon
EastWind [94]

Answer:B

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7 0
3 years ago
When looking at graphs showing 800,000 years of past climate data, there is a direct relationship over time between temperature
Inessa05 [86]

When looking at graphs showing 800,000 years of past climate data, there is a direct relationship over time between temperature and the concentration of carbon dioxide in the Earth's atmosphere is a <u>true</u> statement.

Explanation:

Many paleoclimate studies and research done by observing events like glacial cycles etc over the past 800,000 years about climate changes over the past years have proved the strong linear relationship between temperature and carbon dioxide concentration in the Earth’s atmosphere.

These studies clearly reiterate that when the carbon dioxide concentration in the atmosphere increases, the temperature also increases; and when the CO2 concentration decreases, the temperature also decreases. Carbon dioxide also controls the amount of greenhouse gases in the atmosphere by controlling the temperature.

Increased CO2 levels increases temperature which in turn will increase the evaporation of greenhouses gases present in the atmosphere including CO2 from the reservoir; however, the CO2 can stay in the atmosphere for very long time. All of these factors have led to various climate changes globally .

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What are all the steps of DNA replication
oksano4ka [1.4K]

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3 years ago
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