what was the first life form on earth based on the diagram above

Answers

Answer 1

Answer:

The earliest life forms we know of were microscopic organisms (microbes) that left signals of their presence in rocks about 3.7 billion years old. The signals consisted of a type of carbon molecule that is produced by living things.

Explanation:


Related Questions

Cells that do not have a nuclear membrane are called

Answers

Prokaryotic cells
Please mark as brainliest answer

Explain five possible setbacks a company could face if they don't develop effective configuration management policies and processes.

Answers

Possible setbacks are the difficulty in keeping up with market changes, failures in product production, failures in product distribution, sector problems, problems in the management of employees.

We can arrive at this answer because:

The management of a company is essential for its proper functioning and the success of the production.One of the first problems that lack of management causes is the difficulty in keeping up with market changes. This makes the company outdated and inefficient.Talking about the production and distribution of the product harms sales and reduces the number of customers.Sectoral problems hinder organized production, which will also affect sales.Problems in managing employees will also be disadvantageous, as it will affect all of the company's compositional factors.

Therefore, we can say that management is the most important point to be organized.

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help with number 12 please

Answers

Answer:

i don't know lol i can't really se it becise is like i don't know

Question 5 of 25
Engineers must design a process for producing a large amount of ammonia in a reasonable amount of time. Which criterion would the process need to meet
O A. The rate of product formation must be high.
B. The process must use a known technology.
C. The reactants must come from natural sources.
D. The rate of formation of the reactants must be high.
SUBMIT

Answers

An engineer while developing a procedure for producing a large amount of ammonia in a reasonable quantity of time must meet the standard that the process must utilize a known technology.

What is ammonia?

Ammonia exists as a colorless, pungent gas comprised of nitrogen and hydrogen. It exists as the easiest stable compound of these components and serves as a starting material for the production of numerous commercially important nitrogen combinations. The major usage of ammonia exists as a fertilizer. In the United States, it exists usually applied directly to the soil from tanks including liquefied gas.

Therefore, the (B) option exists as the correct answer.

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What percentage of polled animals can we expect?

Answers

50%! Half of the table has Pp and the other half has pp.

9. When a scientist makes a proposal of a cause-and-effect relationship between two variables, this
statement is called a
a. Conclusion.
O b. Fair test
C. Theory
O d. Hypothesis

Answers

Answer:

You should try d. Hypothesis as answer

Answer:

D

Explanation:

A hypothesis states a presumed relationship between two variables in a way that can be tested with empirical data. It may take the form of a cause-effect statement.

GIVING BRAINLY
Which characteristic do animals with an endoskeleton have that animals with
an exoskeleton lack?
A. A skeleton outside their body
B. A skeleton inside their body
C. The ability to get heat from the environment
D. The ability to produce most of the heat they need

Answers

Answer:

A.

Explanation:

Cause endo skeleton is on the inside

The answer is B because endoskeletons are external bones

help please this is about dna in biology

Answers

Answer:

That image is way too blurry to read. Can you comment what it says so I can put an appropriate answer?

Explanation:

Did the predators prey on the two variations of moths equally?

Answers

Answer:

This is true.

Explanation:

I did the test.

some scientists predict that if global warming continues over the next few centuries, melting of the polar ice caps will rise the level of the oceans causing some peninsulas to become islands. how might this change eventually affect the species that live on these peninsulas?

Answers

Answer:

As global warming causes more snow and ice to melt each summer, the ocean and land that were underneath the ice are exposed at the Earth's surface. Because they are darker in color, the ocean and land absorb more incoming solar radiation, and then release the heat to the atmosphere.

4. Is the sugar in the nucleotide to the right deoxyribose or ribose? How do you know?​

Answers

Answer:

The pentose sugar in DNA is called deoxyribose, and in RNA, the sugar is ribose.

Explanation:

Why do sunspots appear as dark spots on the surface of the Sun?​

Answers

Answer:

I think it is because the sun has released energy and looses light in that area because of it.

Explanation:

Why do sunspots appear as dark spots on the surface of the Sun?

Answer: Sunspots are "dark" because they are cooler than their surroundings. ... Sunspots have a lighter outer section called the penumbra, and a darker central region named the umbra. Sunspots are caused by disturbances in the Sun's magnetic field welling up to the photosphere, the Sun's visible "surface".

Facts about the sun: The Sun is the star at the center of the Solar System. It is a nearly perfect ball of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy mainly as visible light, ultraviolet light, and infrared radiation. It is by far the most important source of energy for life on Earth.

Surface temperature: 5,778 K
Mass: 1.989 × 10^30 kg
Radius: 432,690 mi
Age: 4.603 billion years
Distance to Earth: 92.96 million mi
Spectral type: G2V
Moons: 3122 Florence, 90482 Orcus

How is instinctive behavior acquired?
A)
parental teaching
B)
Learned experience
inductive reasoning
D)
genetic inheritance

Answers

B) Learned experience

give an example of a scientific investigation design with appropriate constants and variables
(IV and DV)

Answers

Answer:

An example of a scientific investigation design that uses independent variable and dependent variable in its design is a research that seek to find out the effect of two different fertilizers on the growth of a tuber crop (yam). The independent variable in this case is the type of fertilizer used while the dependent variable is the corresponding growth of the tuber crop. In a research set up, the independent variable is the variable that cause a change in the dependent variable.

Explanation:

Hope this helps

Select ALL the correct answers.

A mother has blood type A and her son has blood type O. Which blood types are possible for the father?

A

O

AB

B

Answers

i would say just O :) have a good day

Answer: Blood types O, A, and B are possible for the father.

Explanation: Since the mother has type A blood, there are two possible genotypes that she can have: AA or AO. Since her son has type O blood, he only has one genotype: OO.

For blood types,

Type A - AA or AO

Type AB - AB

Type B - BB or BO

Type O - OO

* A and B are dominant over O.

Now we have to do crosses between the mother and the father:

AA mother with AB father: child with type AA or type AB blood

AO mother with AB father: child with type AA, AO, AB, or BO blood

AA mother with OO father: child with AO blood

AO mother with OO father: child with AO or OO blood

AA mother with AA father: child with type AA blood

AA mother with AO father: child with type AA or AO blood

AO mother with AA father: child with type AA or AO blood

AO mother with AO father: child with type AA, AO, or OO blood

AA mother with BB father: child with type AB blood

AA mother with BO father: child with AB or AO blood

AO mother with BB father: child with AB or BO blood

AO mother with BO father: child with AB, AO, BO, or OO blood

The father can have blood types O, A, or B.

A terrestrial biome has long, cold winters and short, cool summers. The precipitation is low, and the ground remains frozen for most of the year. Plants such as lichens and mosses that can withstand dry and cold conditions are found in this biome.

Which biome is characterized by these factors?


coniferous forest
savannah
tropical rainforest
tundra

ANSWER: tundra

Answers

Tundra biome is the terrestrial biome which is characterized by long, cold

winters and short, cool summers.

The tundra biome is found in the polar desert regions where there are long

periods of winter. There is very little precipitation which is usually in the

form of snow.

This biome contains less nutrients and doesn't support much plant or animal

life. Plants such as lichens and mosses which are able to withstand dry and

cold conditions are found in this biome.

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How does human activity harm or benefit the environment?

Answers

Answer: Humans harm the environment in many ways such as overpopulation, pollution, burning fossil fuels, and deforestation. These also, can cause many changes like triggered climate change, soil erosion, poor air quality, and undrinkable water.

Explanation:

I don’t understand why mom doesn’t want me

Answers

Answer:

is because she wants you man. there no mom that dose not like their child

What are the two kingdoms of prokayotic organism?

Answers

Answer:  Bacteria and Archaea

Explanation:

Plants break down the food, prepared during photosynthesis, with the help of _____. (a) Oxygen (b) Carbon dioxide (c) Hydrogen (d) Nitrogen​

Answers

Answer: (a) Oxygen

Explanation: Oxygen reacts with the plants food releasing energy.

How have golden eagles adapted their behavior for living in temperate grasslands?

Answers

Golden eagles have adapted their behavior for living in temperate

grasslands by building their nests on the ground.

Temperate grassland is characterized by mainly grasses and very few

trees. Animals like the Golden eagle who build their nests on tall trees are

able to adapt to the absence of these types of trees in the grasslands by

building their nests in the ground.

They live in in pairs in the temperate grasslands to efficiently guard the

nest and hunt  animals for their survival.

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Which type of chlorophyll is rare in xanthophyceae and is only determine its two genera

Answers

The answer is Chlorophyll

The correct answer is ' Yellow-green algae'.

Why Xanthophyta are called yellow-green algae?

Xanthophyta A phylum of mostly freshwater organisms of the kingdom Protoctista, traditionally known as yellow-green algae, that possess carotenoid pigments (including xanthins), which are responsible for their color, in addition to chlorophylls.

Is Xanthophyta and Xanthophyceae the same?

Commonly known as yellow-green algae, the Xanthophyta includes one Class, Xanthophyceae, characterized by the following general features: (1) the photosynthetic pigments consist of chlorophyll-a and -e, β carotene and xanthophylls; of these, β carotene is usually present in fairly high concentrations.

What is the pigment of Xanthophyceae?

Xanthophyceae is a class comprised of xanthophytes or yellow-green algae. The color is due to the presence of pigments such as xanthophylls and beta carotene. They also have chlorophyll pigments. They have chlorophyll a and c.

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list the levels of organization of that make up an organism, starting with an atom and ending with an organism

Answers

Answer:

The major levels of organization in the body, from the simplest to the most complex are: atoms, molecules, organelles, cells, tissues, organs, organ systems, and the human organism.

Describe the weather after the passage of a cold front.

Answers

Answer:

As the cold front passes, winds become gusty. ... Atmospheric pressure changes from falling to rising at the front. After a cold front moves through your area, you may notice that the temperature is cooler, the rain has stopped, and the cumulus clouds are replaced by stratus and stratocumulus clouds or clear skies.

Explanation:

Compare the location and size of the prepuce in the fetal pig and in the human

Answers

The prepuce is an anatomical covering for the sex organs and is an important, typical feature of the external genitalia in a pig.

Comparing the location of the prepuce - The prepuce is in the same location in fetal pigs as it is in humans.

Comparing their structures, this structure is much larger in humans than in the fetal pigs.

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PLZ HURRY
Which of the following is organized into chromosomes (there may be more than one awnser )

Dna

tRNA

mRNA
None

Answers

the anser is dna sorry if it wtong

In the series of words given below, which of the following words is not categorized with the others?
superstructure - supervene - superstar - Supemova - supertanker
Select the single best answer:
e
A. superstructure
B. supervene
C. superstar
D. supernova
E supertanker

Answers

Answer:

I think its supernova

Explanation:

the choices a b c and e are all something more of something that exists. Ex) Super star is a star that is Super! But a Supernova is just a Supernova. There is no nova that is Super.

I hope this helps.

Supernova is the series of words given below, which of the following words is not categorized with the others.

What is Supernova?

A star that has reached the end of its life and bursts in a bright flash of light is what is known as a supernova.

Supernovae have the ability to briefly outshine entire galaxies and emit more energy in a single second than the sun does in its entire lifetime. Additionally, they are the universe's main supplier of heavy materials. Supernovae are "the greatest explosion that occurs in space," according to NASA.

Supernovae were noted by numerous cultures before the telescope was created in the 17th century. According to NASA's records, this "guest star" was visible in the sky for eight months.

Therefore, Supernova is the series of words given below, which of the following words is not categorized with the others.

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Why do plant seeds contain oil

Answers

Answer: to store energy

Explanation:

many trees in pennsylvania loose their leaves in the autumn and regrow their leaves in the spring. which graph shows the weather change that results in this pattern.

Answers

I’m positive it’s a

The bacteria that is responsible to convert ammonia to nitrates is called



Group of answer choices

E coli

denitrifying bacteria

nitrifying bacteria

Answers

Answer:

nitrifying bacteria

Explanation:

Other Questions
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