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3 years ago

Explain how the fossil record indicates a long history of changing life forms.

Biology

2 answers:

valina [46]3 years ago

6 0

Answer:

Explanation:

The fossil record shows that different species have evolved over time. The fossil record also provides evidence of how a specific organism evolved from earlier species. The fossil record shows that organisms have become more complex over time. It also shows which organisms lived during the same time period, which have a common ancestor, and which have become extinct.

sergey [27]3 years ago

4 0

<h2><u>Answer:</u></h2>

Fossil: is preserved pre historic life form present under ground at high pressure for a long time.Animal die and burried under layers of sediments.

It provides evidence about the history of life on earth. It also shows different groups of organisms, including species,that have changed over time. Because the formation of any fossil depends upon the precise combination of conditions.

As the world changes, plants and animals change with time . From fossils we compare organisms of modern time with ancient , the species we see today are very different from species that lived in the past. Thus, the fossil record can be used to show that organisms changed to meet new condition.

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Each child born to a particular set of parents has probability 0.25 of having blood type o. if these parents have 5 children, wh

Taya2010 [7]

Use binomial distribution with p=0.25, n=5, x=2
P(X=x)=C(n,x)p^x (1-p)^(n-x)

P(X=2)=C(5,2) 0.25^2 0.75^(5-2)
=10*0.0625*0.421875
=0.26367

So the probability of 2 of 5 children having type-O blood from these parents is 0.26367.

7 0

2 years ago

What would happen if a cell transcribed and translated a gene’s intron by mistake?

wariber [46]

An intron is a non-coding region of DNA. During alternative splicing, introns are removed.

During eukaryotic transcription, a fragment of DNA (e.g., a gene) is used as a template to synthesize a complementary RNA sequence, usually a precursor mRNA (pre-mRNA).

Subsequently, this pre-mRNA is processed by a mechanism called alternative splicing in order to produce a mature mRNA which is then used as template to synthesize a protein by a process called translation.

During alternative splicing, non-coding regions of a gene called 'introns' are removed, where coding regions called 'exons' are spliced back together.

If a cell transcribed and translated a gene’s intron by mistake, then additional amino acids would be inserted into the protein and therefore the resulting protein will be longer than normal.

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6 0

3 years ago

Please Answer Fast!!! 50 POINTS!!!!

sergiy2304 [10]

Answer:

Location B, because cracks between plates are filled with molten rocks which solidify

Explanation:

Location B because, as the tectonic plates move away under the sea, inside the sea are cracks of the ocean floor that releases molten rocks, or a type of liquid that hardens when interacting with liquid (thats from the mantle).

4 0

3 years ago

Read 2 more answers

he Punnett square shows the cross for a particular trait between a homozygous dominant parent and a heterozygous parent. What is

Crazy boy [7]

Answer:

50%

Explanation:

Let's make a Punnett square to represent this, with X representing our dominant allele and x our recessive.

One homozygous dominant parent = XX

One heterozygous parent = Xx

X X

X XX XX

x Xx Xx

So two out of our four outcomes are heterozygous for the trait. That means the answer is <u>B. 50%.</u>

5 0

3 years ago

Chantek the orangutan is one of many nonhuman primates that scholars have used to draw conclusions about the origins of human la

Vilka [71]

Answer: the correct option is C(communicate through sign language)

Explanation:

Chantek the orangutan is one of many nonhuman primates that scholars have used to draw conclusions about the origins of human language because they seem to be able to communicate through sign language. Taught by American anthropologists Lyn Miles and Ann Southcombe Channel the orangutan learnt how to communicate using that American sign language.

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3 years ago