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Naddik [55]
2 years ago
7

Suggest two factors which may have caused ammonitites to become extinct

Biology
1 answer:
WARRIOR [948]2 years ago
4 0

Answer:

A 7.5 mile wide asteroid slammed into the Earth and killed off more than three-quarters of the all species on the planet. There were many changes caused due to the impact. Ocean acidification likely dissolved the shells of their microscopic young ones. Fossil records also shows that the impact wiped plankton species which was their main food source.It starved the ammonites.

Hope it helps :)

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Life as we know it depends on the genetic code: a set of codons, each made up of three bases in a DNA sequence and corresponding
slava [35]

Answer:

In the most general case of x bases and y bases per codon, the total number of possible codons is equal to xy . In the case of the hypothetical Martian life-forms, is the minimum codon length needed to specify 17 amino acids is 5 (25 = 32), with some redundancy (meaning that more than one codon could code for the same amino acid).  For life on Earth, x = 4 and y = 3; thus the number of codons is 43, or 64. Because there are only 20 amino acids, there is a lot of redundancy in the code (there are several codons for each amino acid).

Explanation:

8 0
3 years ago
What would be the physical sign that a bone cannot continue longitudinal growth?
faltersainse [42]

Answer:

c) The presence of an ephiphyseal line

Explanation:

The options should be:

a) the presence of osteoblasts

b) the presence of osteons

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d) the presence of hyaline cartilage on the ends of the bone

Explanation:

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8 0
3 years ago
Explain intelligence.
Naily [24]

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5 0
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Answer:

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Every time that the characters evaluate themselves and correct their behaviors, they will be able to follow the emotional evolution that will help them to deal with all their suffering. In this journey, each one has a different rhythm. In fact, we are different in almost every aspect of our physical and mental makeup. The variations in intelligence are enormous and also those related to aggressiveness, intensity of fears and the ability to deal with them. It would not be fair, therefore, to tell a character (or a person) that he is suffering from "nonsense". What is small for one may be large for the other. Underestimating the pain of others is not synonymous with help, but a lack of empathy.

We do have a duty and obligation, in the name of our own well-being, to try to get rid of our pains as quickly as possible, but that does not mean not feeling them. Some people do it more easily, while others "fall in love" with the problem and think about it in a recurrent and obsessive way. They silence the word, but the mind goes on chattering.

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