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iVinArrow [24]
3 years ago
11

The oldest fossil identifie so far , the stromatolites , represent which type of cell ?

Biology
1 answer:
telo118 [61]3 years ago
7 0

Answer:

The correct answer will be option-B

Explanation:

Stromatolites are the sedimentary deposited mounds made of layers of phototrophic microbes which were usually present in the primordial times. The stromatolites are one of the oldest fossils is known today which were formed in the shallow water.

They are composed of the phototrophic bacteria or cyanobacteria which survived and still survive by using the carbon dioxide and sunlight to make food material.

Since the bacteria are the prokaryotic organism therefore, the Option-B is the correct answer.

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A process that involves removing and analyzing part of the placenta is known as
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<span>That would be "Chorionic Villus Sampling"</span>
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3 years ago
What allows scientists to predict future climate change with some sense of accuracy?
iren [92.7K]

Answer:

Climate models can show the composition of the atmosphere in the future.

Explanation:

Climate models help predict how the average conditions will change in a region and they also serve as an extension of weather forecasting. They are quite broad and can make analysis and predictions over long time spans.

These models are generated from some set of mathematical principles with different data points numbering over a thousand. These large data points help increase the accuracy of the models.

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3 years ago
The primary role of the carbonic acid−bicarbonate buffer system is to __________.
jolli1 [7]
Preventing ph changes caused by the rising and falling pco2 of the plasma
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3 years ago
In which of the following situations do you think current will flow
anzhelika [568]

Answer:

Source of current, force and pathway.

Explanation:

Source of current, force and pathway are the three important things needed or responsible for the current flow. A supply of electric charges (electrons) which is provided by the electric source, force of push to move the charges through the circuit and a pathway on which current flows. Without these three things, flow of current is impossible. so we can say that the situation in which all these three things are present will allow the current to flow in the circuit.

8 0
3 years ago
which classification level is broader than the kingdom level; which branch of biology is concerned with the naming and classifyi
shtirl [24]

Domain is broader than the kingdom level.

Levels of classification that are broader than phylum are regions and kingdoms. There are five kingdoms: Monrea, Protista, Fungi, Plants.

Taxanomy is the branch of biology concerned with the naming and classifying of organisms.

Protists are described as diverse organisms because they have many different characteristics. They are either heterotrophs or autotrophs. They are also eukaryotes that are not classified as plants, animals or fungi.

Animals group of organisms includes only multicellular heterotrophs.

If two species belong to the same class, they also belong to the same taxon higher up in the hierarchy. Here they belong to the same side and kingdom.

The gradual change in a species over time is called Evolution.

The levels of classification that are broader than the phylum are domains and kingdoms.

Taxonomy is the science of naming, describing and classifying all living organisms, including plants.

To know more about Taxanomy here

brainly.com/question/16458449

#SPJ4

6 0
1 year ago
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