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nikitadnepr [17]
3 years ago
15

Describe how environmental changes can cause species to become extinct.

Biology
1 answer:
denis-greek [22]3 years ago
5 0
Many species, or at least the region they live in, need a relatively narrow set of environmental criteria to be true in order to survive.  For example, if an alligator in the Florida wetlands experiences a long-term drought, the plants that the smaller animals eat can dry up and those animals die.  Then the alligators have no animals to eat so they could die.  If this was to happen over a long period of time and on a worldwide scale, a species could become extinct.

I hope that helps.
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PIT_PIT [208]
If D is dominant and d is recessive

1. Dd
2. DD
3. dd
4 0
3 years ago
This process most likely leads to an increase in which following?
monitta
I have no clue, there is nothing else here to support your question.
7 0
3 years ago
Why is bacteria placed in the kingdom prokaryotes
sukhopar [10]
Prokaryotes are chiefly defined as cells without a nucleus to contain the genetic information. Bacteria do not have a nucleus but, like prokaryotes, a nucleoid region in the center where the DNA can be found. Bacteria also do not have membrane-bound organelles, but they do have ribosomes to synthesize proteins. Bacteria vary a lot in the different structures they can have, but these basic factors make bacteria prokaryotes.

Hope this helps! :)

7 0
3 years ago
What is the best explanation for the observation that eukaryotes that seem superficially simple can have much larger genomes (in
brilliants [131]

Answer:

Some organisms have a tremendous amount of noncoding DNA, like repetitive sequences.

Explanation:

DNA is the genetic material in almost all the living organisms but except in case of viruses that has RNA as their genetic material. DNA consists of the four nitrogenous bases, pentose sugar and phosphate group.

Prokaryotes have simple body organization and structure because of the sall amount of DNA. Eukaryotes have complex body organization because they have large amount of the transposons, repetitive sequences and non repetitive DNA sequences.

Thus, the correct answer is option (b).

3 0
3 years ago
State two biological reasons why you consider that the loss of biodiversity matters.
Marat540 [252]
Loss of biodiversity matters because it affects the overall sustainability of organisms in an ecosystem. It also affects how badly an ecosystem will be affected after something, maybe a natural disaster, or maybe a disease, strikes the region. (For example, if a disease affects a certain species of organism, if there was a lot of biodiversity among individuals, some will have some kind of natural immunity to that disease and survive, passing on their favorable traits to the next generation. However, if everybody was the same and did not have the immunity to that disease, that entire population would eventually die out.) <- This is also the reason that lack of biodiversity will inhibit natural selection.
Hope that helped you.
3 0
3 years ago
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