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nasty-shy [4]
3 years ago
14

Index fossils are fossils of organisms that ____.

Biology
2 answers:
dusya [7]3 years ago
7 0

Answer:

They were spread over a wide area, and lived over a short period of time

Explanation:

Index fossils are fossils that are used to date back geologically.

Deffense [45]3 years ago
6 0

Answer: Option (1)

Explanation: Index fossils are those fossils which were present only for a short period of time and had wide geographical distribution. This fossils plays an important role in the correlation of rocks i.e two same rocks appearing at two different places, as well as, it helps in the determination of the age of rock. For example, ammonites.

Thus, the correct answer is option (1).

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Suppose a friend says that we don't need to worry about the rising temperatures associated with global climate change. Her claim
8090 [49]

Answer:

Option-A

Explanation:

In the given question, the person predicts that if CO₂ level in the atmosphere will be increased then the phytoplanktons will grow more and the atmospheric carbon will be absorbed and will be fixed.

This statement juts seem like assumptions and if we consider this as a hypothesis then the facts will not be in favour of this hypothesis.

In the present day, the CO₂ level has already increased but the plants are not been able to utilise the Carbon dioxide and reduce global warming as the carbon uses free carbon from the atmosphere only and not bound carbon.

Thus, Option-A is correct.

7 0
3 years ago
ASAP Which of the following is true about DNA in a prokaryotic cell? A. Wound tightly in the nucleus. B. Connected to protein th
svetlana [45]

Answer:

C. It is coiled into a genophore, but not inside a nucleus.

Hope this helps.

6 0
3 years ago
Pea seed color exists as green or yellow. We might say that "yellow" is an example of a (an)_ for seed color
LiRa [457]

Answer:

b. allele

Explanation:

An allele is a variant form of a gene. In this problem, there is one gene (that determines seed color) with two possible alleles (green and yellow).

<u>The other options are wrong because:</u>

The genotype is the combination of alleles an individual has.

The karyotype is an individual's collection of chromosomes, paired and ordered.

A homozygote individual has the same alleles for a particular gene.

A heterozygote individual has different alleles for a particular gene.

6 0
3 years ago
Why in many living organisms (with exception of some viruses) only DNA, but not RNA, is the main source of genetic information?
agasfer [191]

Answer:

because \: dna \: is \: both \: more \: resilient  \\ \: and \: easly \: repairble \: than \: rna \:  \\ therefore \: dna \: serve \: as \: more \\  \: stable \: carrier \: of \: genetic \: information \:  \\ thank \: you

4 0
2 years ago
Read 2 more answers
Which clients are showing manifestations of infection? select all that apply?
ch4aika [34]
<span>A typical questions asking someone to point out something given a selected sample would have provided enough visual data that is sufficient to make a conclusive decision from. So given a chart or a table with certain number of clients showing no signs of infection and others with infection. It's easy to pick the numbers from the chart or table. In the given question, there is no chart or table and as such, not enough data with which a conclusive and coherent answer can be arrived at.</span>
6 0
3 years ago
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