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olasank [31]
3 years ago
8

Read the following passage from the Biology Department at University of California, Berkeley. Northern elephant seals have reduc

ed genetic variation because hunting by humans reduced their population size to as few as 20 individuals at the end of the 19th century. Their population has since rebounded to over 30,000, but their genes still carry the marks of this near extinction: they have much less genetic variation than a population of southern elephant seals that was not hunted as intensely. Which of the following best describes how the population has evolved?
Biology
2 answers:
alexdok [17]3 years ago
8 0
The answer is D <span>The population has evolved because there was a change in allele frequencies.</span>
g100num [7]3 years ago
5 0

Answer:

it is is d its correct just did the test

Explanation:

The population has evolved because there was a change in allele frequencies.

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How do you write 2-3 paragraphs on evolutionary history/advances from the monerans to protists to fungi?
Lyrx [107]

Kingdom Monera was the oldest kingdom of living organisms. The organisms in the kingdom were simple, single celled and their cellular organelles were not covered by membranes. Prokaryotic bacteria were the first known Monerans. However, scientists think that Monerans were evolved into more complex eukaryotic organisms (Protists) with the passage of time.  

But how did Monera (Prokaryotes) was evolved into Protista (Eukaryotes)?

  • Monerans to Protists

Protista are eukaryotes, unicellular or simple multicellular organisms.Many theories were proposed for this evolution, but one that makes most sense was endosymbiotic theory. According to this, the first eukaryotic cells were evolved when two prokaryotic cells existed in an endo-symbiotic relationship. Larger prokaryotic cells engulfed smaller prokaryotic cells. The smaller cells got shelter and nutrients from larger cells and both co-existed in a mutualistic relationship. Both cells eventually evolved into organelles and got never aparted. This is how more complex organisms’ protists were evolved from simple monerans. It was a gradual process and took millions of years.

  • Protists to Fungi

The earliest fungi were single-celled organisms that contain a flagella to move from one place to another. Recent studies indicate that fungi belong to a group of organisms which were evolved from protists over the course of time. These studies are based on the nucleotide sequence of fungi that matches to a large extent with old protists. It is estimates that fungi evolved 600 million years  or even before.


3 0
4 years ago
Where does a nurse expect to hear bronchovesicular lung sounds in a healthy adult?
vodomira [7]
During the examination of a patient suffering with a lung or respiratory disease, a nurse is expected to hear different types of sounds coming from different parts of the lungs. The sound can be crackled, broken, high-pitched, medium-pitched, etc.
A nurse is expected to hear a bronchovesicular lung sound NEAR THE STERNAL BORDER in a healthy adult.
8 0
4 years ago
(c) Based on the data, describe the time period during which Chlorella approximates exponential growth. Based on
miskamm [114]

Answer:

What is the name of this website

or the book?

7 0
3 years ago
Helo! i was wondering if anyone could help me of these two questions for biology?
Rom4ik [11]

1) A 2) B

Explanation:

Enzymes are catalyst, meaning that they could be use in several reaction and they speed up any chemical reaction rate. So knowing this, when the animal have more enzymes it will react more quickly with the food, making it digest the food more quickly.

Hope the help, cheers

3 0
4 years ago
Why do humans<br> show variation?
Mars2501 [29]

Answer:

gugkugcoytci6r

Explanation:

Causes of Variation:

Causes of differences between individuals include independent assortment, the exchange of genes (crossing over and recombination) during reproduction (through meiosis) and various mutational events. There are at least three reasons why genetic variation exists between populations.

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8 0
3 years ago
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