7.) DURING THE FIRST ERA, THE __________ ORGANISMS EVER ON EARTH WERE
ERA, THE FIRST LIVING

Answers

Answer 1

Answer:

The first living organism on Earth are Bacteria in the first era.

Explanation:

Bacteria are the first organism to leave be on Earth. They came into existence about 3.5 billion years in the first era in the waters of small oceans. Then there were anaerobic hetetrophic bacteria because the atmosphere was free of oxygen before. Cyanobacteria then became the first autotrophic organisms and first photosynthesizer that release oxygen to the atmosphere after photosynthesis.


Related Questions

list one part of the cell theory in your own words, explain what it means

Answers

One part of the cell theory is that pre-existing cells can form more cells

This means that cells that currently exist are capable of creating more cells, however it’s a slow process

Why most foods needs to be digested? Give at least 3 reasons

Answers

Answer:

Why most foods needs to be digested? Give at least 3 reasons.

Explanation:

Foods must be digested cause of the following reasons:

1. To get energy the food must be digested.

2. To provide nourishing vitamins and minerals to our body.

3. You will be affected by some diseases if you didn't digest your food.

Select the correct bisector of the segment.
B
A
B
B
B
А
M
B
B
D

Answers

Answer:

C

Explanation:

it has the example figure number 7 and also it has the correct bisector

When covalent bonds form. the amount of energy present decreases. What happens to the stability of the atoms in the bond?

Answers

Covalent bonding occurs when pairs of electrons are shared by atoms. Atoms will covalently bond with other atoms in order to gain more stability, which is gained by forming a full electron shell. By sharing their outer most (valence) electrons, atoms can fill up their outer electron shell and gain stability.

Electron transport from complex I to complex IV pumps more protons than transport from complex II to complex IV.
With this in mind, which will produce more ATP

A. Transport from complex I produces more ATP.

B. Transport from complex II produces more ATP.

C. Both produce the same amount of ATP.

Answers

Answer:

A

Explanation:

ATP synthase uses a proton gradient to make ATP. Since transport from complex I creates a larger proton gradient, it also produces more ATP.

Electron transport from complex I produces more ATP.

ELECTRON TRANSPORT CHAIN:

The electron transport chain, ETC, is the third and last stage of aerobic cellular respiration. It produces the highest molecules of ATP in cellular respiration.

The ETC involves the transfer of electrons to series of molecules in order to create an electrochemical gradient needed for ATP synthesis.

The electron transport chain is made up of four complexes namely: Complex I, II, III and IV. NADH and FADH2 produced in the Krebs cycle are the electron carriers.

Complex I pumps more hydrogen ions (H+) from the mitochondrial matrix to the intermembrane space.

Since the pumped is directly related to the number of ATP molecules, complex I will produce more ATP molecules.

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Can someone please help me I don't understand the and my parents don't under please

Answers

432hz x 432hz = 2228

Explanation:

the simple explanation is shushh

decode CCGCTTTCGCTATTATAAAAAGGGCTATAACTA

Answers

Answer:

GGCGAAAGCGAUAAUAUUUUUCCCGAUAUUGAU. I think sorry if I'm wrong

What is the difference between a molecule and a diagram of a molecule ?

Answers

Answer: The molecule itself is the actual thing present.

while the diagram explains what makes up a molecule or what it looks like structurally

Explanation:

What is the definition of a DNA Polymerase

A. Enzyme involved in DNA replication that joins individual nucleotides to produce a DNA molecule
B. An enzyme that unwinds the DNA double helix during DNA replication
C. A class of nucleotides that includes adenine and guanine.
D. A bond between complimentary base pairs in DNA​

Answers

A. I hope this hopes

Look at the graph below. A graph is shown with Absolute magnitude shown on y axis and Surface temperature in degree Celsius shown on x axis. The Dwarf stars are shown along a slanting line from coordinates 30,000 and minus 3 to 10,000 and minus 4. The Main Sequence stars are shown along a slanting line from coordinates 20,000 and minus 2 to 2,000 and minus 6. The giants are shown along a line parallel to the x axis from coordinates 5,000 and 2 to 2,000 and 3. The supergiants are shown along a line parallel to the x axis from coordinates 7,500 and 4 to 2,500 and 4. Point A has coordinates 20,000 and minus 4. Point B has coordinates 2,500 and minus 4. Point C has coordinates 5,000 and 2. Point D has coordinates 7,000 and 4. Which of the following stars is most likely to be red? Star A Star B Star C Star D

Answers

Answer:

Star A

Explanation:

If you look directly at the diagram, the dwarf stars are labeled under 'A' and are the least in mass and temperature.

Being the smallest and coldest, dwarf stars most commonly have red coloration, which would make them the obvious choice.

Star A which is a dwarf star has the coldest temperature, and therefore is a red star since red stars are the coldest stars.

What are stars?

Stars are a large self-luminous bodies whichbpriducw large amounts of heat energy and light energy as a result of the nuclear reactions occurring within them.

Stars have different colors and different sizes.

Red stars are the coldest stars and also the least massive.

From the chart, Star A which is a dwarf star has the coldest temperature, and therefore is a red star.

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#SPJ2

What changes occur to the ratio of surface area to volume as a cell
grows?

Answers

Answer:

As a cell grows, its surface area-to-volume ratio decreases

What are the three main classifications that describe galaxies? By what one visible
characteristic do scientists categorize galaxies?

Answers

Answer:

Spiral Galaxies, Elliptical Galaxies  & Irregular Galaxies

Explanation:

How did galaxies originate? Astronomers believe that after the big bang, the explosion which began the universe 10 billion to 20 billion years ago, gravity began to compress masses of free-floating gas. Two main theories, bottom-up and top-down, explain what happened next. According to bottom-up theories, clusters began to form and assembled together into the larger units we know as galaxies. Top-down theories suggest that galaxies formed first, and the stars and other objects within them were subsequently produced. They categorized different galaxies to maintain their tests from the other galaxies.

1. What is the pH range for an acid?

A. 0 - 7- 14



2. What is the pH range for a base

A. 0 - 7- 14



3. What are the products of an acid base reaction?

A. water and salt

B. acid and base

C. water and sugar

D. water



4. What substance has a neutral pH?

A. ammonia

B. water

C. sodium bicarbonate

D. vinegar



5. The negative ion found in bases is the ______________

A. hydrogen ion (H+)

B. hydroxide ion (OH-)

Answers

Answer:

0-7-14

0-7-12

c is correct water and suger

d is correct vinegar

b is correct (OH-)

.
Why are some sources of sugar better than others?

Answers

Explanation:

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Whether an added sugar contains more or less fructose versus glucose has little impact on health. (An exception may be people with diabetes who need to control their blood glucose, in which case a higher-fructose, lower-glucose sugar may be preferable

Answer:

Some sugar that's made is usually take and unhealthy, but other sources can be purely made with no artificial s added to it making it fake.

multiple choice
Daytime temperatures on Mercury are extremely hot because:

1. it is close to the sun
2. it has long days
3. one side is facing the sun
4. it gives off internal heat
5. there are volcanoes

Answers

Answer: it has long days

Explanation:

In mature animals when do cells still need to differentiate?

Answers

Answer:

As an organism develops, cells differentiate to form different types of cells. Most types of animal cell differentiate at an early stage. Many types of plant cells retain the ability to differentiate throughout life. In mature animals, cell division is mainly restricted to repair and replacement.

Explanation:

''.''

In mature animals cells differentiate during : Repair and replacement of  animal cells

Cells differentiate in organisms and plants to create more cell types, as the organism and plants continue to mature. While cell differentiation in animals occur mostly before maturity, plants cells continue to differentiate until they die.

While in mature animals, cells differentiates at maturity only when the cells of the mature animal needs repair or replacement due to damage caused to the a cell or tissue.

Hence we can conclude that in mature animals cells differentiate during repair and replacement of cells.

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which is NOT part of the cell theory?

A) all living thing a are composed of cells
B) Cells are the building blocks of germs
C) All cells come from other cells
D) Cells are the basic units of structure and function in living things

Answers

Answer:

B.

Explanation: Hope this helps! ^^

explain how the equilibrium price is determined​

Answers

Answer:

The equilibrium price is the price at which the quantity demanded equals the quantity supplied. It is determined by the intersection of the demand and supply curves. .

A decrease in demand will cause the equilibrium price to fall; quantity supplied will decrease.

Explanation:

write the difference
between mitosis and mieosis


please give me the answer

don't spam​

Answers

Answer:

Meiosis is the type of cell division that creates egg and sperm cells. Mitosis is a fundamental process for life.

Explanation:

mitosis is same number

and mieosis _ half number

What is a claim? (what does it answer?)

Answers

Answer:

A claim is mostly used in an Argumentative essay and it answers the topic or the prompt of an essay. For example,you can choose a side if you agree or don't agree.

Hope this helps.

Explanation:

What environment does ambulocetus live in?

Answers

Answer:

northern Pakistan, in long-lost coastal shallow seas and brackish rivers

Explanation:

i'm hoping this is right

What process in humans is a good representation of asexual reproduction?

A. Meiosis

B. Mitosis

C.Fertilization

Answers

Answer:

B.

Explanation:

What appearance is liquid and gas? Choose all that apply.
A: Flows
B: Rigid
C: Stays at bottom of the container
D: Holds it's shape
E: Fills container
F: Takes shape of container
G: No visible shape

Answers

Answer:

2 shows the differences among solids, liquids, and gases at the molecular level. A solid has definite volume and shape, a liquid has a definite volume but no definite shape, and a gas has neither a definite volume nor shape

Explanation:

What is a constant?
O a variable
a number that stands alone with no variable
O the number in front of the variable
O two terms that look exactly the same


need help please

Answers

Answer:

a number that stands alone with no variable

Hope this helps!

MULTIPLE CHOICE QUESTION
Why do scientists think that cuttlefish
have the biggest brain to body ratio of all
invertebrates (animals without a spine)?

Answers

Answer:

Due to its high intelligence.

Explanation:

Scientists think that cuttlefish  have the biggest brain to body ratio of all  invertebrates that allows it to sense sight, smell, and sound that comes to it in the form of pressure waves. Due to this big brain, cuttlefish are very intelligent so due to its intelligence the scientists thinks that cuttlefish has the biggest brain as compared to other big vertebrates such as octopus.

Answer 15 and 16 correctly and I will mark as brainliest

Answers

Answer:

I think its A and G

Answer:

15. B.

16. H

Explanation:

rko vs claymore who will win​

Answers

Answer:

claymore duh

Explanation:

Answer:

claymore

Explanation:

Which statement is part of the cell theory?
A Single-celled organisms are made of one cell.
B Cells are different in size and shape.
C All cells come from other living cells.
D Cells sometimes only have one job.

Answers

Answer:

I believe it's C, all cells come from other living cells.


Which is not a likely economic tool to address environmental issues?
Emissions fees and taxes

Responsibility for a product from production to disposal

Small business liability relief

Defunding government regulation

Answers

Explanation:

Policy-makers have two broad types of instruments available for changing consumption and production habits in society. They can use traditional regulatory approaches (sometimes referred to as command-and-control approaches) that set specific standards across polluters, or they can use economic incentive or market-based policies that rely on market forces to correct for producer and consumer behavior. Incentives are extensively discussed in several EPA reports

Two basic types of traditional regulatory approaches exist. The first, a technology or design standard, mandates specific control technologies or production processes that polluters must use to meet an emissions standard. The second, a performance-based standard, also requires that polluters meet an emissions standard, but allows the polluters to choose any available method to meet that standard. Performance-based standards that are technology-based, for example, do not specify a particular technology, but rather consider what available and affordable technologies can achieve when establishing a limit on emissions. At times, EPA may completely ban or phase out the use or production of a particular product or pollutant, as it has done with chlorofluorocarbons (CFCs) and certain pesticides. Regulations can be uniform or can vary according to size of the polluting entity, production processes, or similar factors. Regulations are often tailored in this manner so that similar regulated entities are treated equally. MARK AS BRAINLIEST IF IT HELPS

which of the following is problem created when a cell becomes to large

Answers

Answer:

As a cell increases in size, it usually does not make extra copies of DNA. If a cell became too large, an "information crisis" would occur. The cell has more trouble moving enough nutrients and wastes across the cell membrane.

Explanation:

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