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Mice21 [21]
3 years ago
10

How would you account for the fact that fossils of fish are not present in the older layers of rock?

Biology
1 answer:
Mademuasel [1]3 years ago
5 0

Answer:

The fish did not yet exist when the old layers of rocks were deposited. In fact, animals with hard parts did not evolve until about 600 million years ago, which is only about 13% of the 4.5 billion year age of the Earth. Multicellular animals without hard parts left tracks in older sediments, but had no fossilize-able body parts.

Explanation:

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Which of the following nations is not a republic?
garik1379 [7]

Answer:

The United Kingdom.

Explanation:

A republic can be defined as a form of government that is typically being ruled by the people.

In a republic, the citizens of the country have the supreme power and as such they are saddled with the responsibility of voting to elect representatives who make laws, decisions and govern the country.

All of the following countries are a republic;

I. Egypt (Arab Republic of Egypt).

II. United States of America.

II. Russia (Russia Federation).

<em>However, the United Kingdom is a unitary nation that practice both parliamentary democracy and constitutional monarchy. The parliament of the United Kingdom comprises of two chambers and these are the House of Commons (lower chamber) and the House of Lords (upper chamber). </em>

6 0
2 years ago
The control center for the cell, which is responsible for transmitting genetic information and providing instructions for protei
enyata [817]
The nucleus is responsible for storing dna as well as the instuctions for protein synthesis
5 0
3 years ago
Several groups of protists have variable modes of nutrition: Some species are photoautotrophs, whereas close relatives are heter
Radda [10]

Answer:

The endosymbiotic theory

Explanation:

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The protist can derive nutrition by either heterotrophic mode or photoautotrophic mode. This variation could exist within the same genus and same species.

This variation could be explained with the endosymbiotic origin of the organisms as some species could engulf the photosynthetic bacteria whereas some could have engulfed the chemosynthetic bacteria.

This can be observed in the green and red algae which depend on a different mode of nutrition belonging to the same group.

Thus, the endosymbiotic theory is correct.

4 0
3 years ago
What’s the similarities of red bloods cell and animal cells
kotykmax [81]

Answer: they both have a:

Nucleus. The nucleus can be thought of as the cell's headquarters.

Plasma membrane. To ensure each cell remains separate from its neighbor, it is enveloped in a special membrane known as the plasma membrane.

Cytoplasm.

Lysosomes and peroxisomes.

Cytoskeleton.

Endoplasmic reticulum.

Golgi apparatus.

Mitochondria.

7 0
2 years ago
What is the major thing happening to a cell during G1?
PilotLPTM [1.2K]

Answer:

During this stage new organelles are being synthesized (made), so the cell requires both structural proteins and enzymes, resulting in great amount of protein synthesis. Color the G1 phase green on the cell cycle drawing.

Explanation:

6 0
2 years ago
Read 2 more answers
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