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Vinil7 [7]
3 years ago
7

The change of one base to another in a DNA sequence

Biology
1 answer:
PSYCHO15rus [73]3 years ago
7 0
Where's teh image at
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Red imported fire ants are an ant species native to South America, but were introduced into the US in the 1950s.
Ann [662]

This is (b.) False, because it was actually introduced in the 1930's.

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2 years ago
What is fragmentation ?
finlep [7]

Fragmentation is the breaking of the body into parts and then the organism develops all the parts of the body. The fragmentation is the type of reproduction in lower organisms. The fragments which are produced can develop into new organisms.

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2 years ago
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Explain how the discoveries by Rosalind Franklin helped Watson and Crick build an accurate model of DNA.
Andru [333]

Answer:

Rosalind's x-ray showed that the ladders of nucleotides were inside a double helix.

Watson and Crick built models with the ladders on the outside.

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2 years ago
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The mammalian tail and
cluponka [151]

The mammalian tail and the human coccyx, the leaves of pitcher plants and cacti, are homologous organs while, the flippers of penguins and dolphins, as well as the shells of turtles and crabs are analogous structures.

<h3>What are homologous organs?</h3>

Homologous organs are those that are similar in structure but operate differently. They resulted from divergent evolution.

Divergent evolution occurs when species are closely connected to the same ancestors but develop similar structures that perform different tasks in different environments.

Analogous Organs are organs from various creatures that, despite their appearance, perform the same function.

In the given case, the mammalian tail and coccyx, as well as the leaves of pitcher plants and cacti, are homologous organs, whereas penguin and dolphin flippers, as well as turtle and crab shells, are analogous structures.

Thus, these are the different instances of homologous and analogous organs.

For more details regarding homologous structures, visit:

brainly.com/question/1274613

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5 0
1 year ago
According to some botanists, invasive plants are the second most serious threat, after habitat loss, to native species of plants
Nataliya [291]

Answer: option A - threat, after habitat loss, to native species of plants and animals and to the maintenance of biologically diverse ecosystems

Explanation:

Invasive species refers to organisms that appears at a particular habitat that has just undergone an environmental unfavorable condition.

These INVASIVE SPECIES poses THREAT to the native organisms, because they usually possess:

better resistance to disease,

higher reproductive rate, etc.

So, even when native organisms migrate or dies, Invasive species REMAINS. As a result, they threaten the maintenance of a biologically diverse ecosystem

8 0
3 years ago
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