Which of the following is most likely responsible for the fact that organic molecules no longer formed spontaneously on Earth?
A. The amount of UV radiation increased
B. The amount of oxygen in the atmosphere increased
C. Water accumulated in the oceans
D. Earth's surface temperature warmed

Answers

Answer 1
The answer is B. The amount of oxygen in the atmosphere increased.
Answer 2

Answer:

b

Explanation:

oxygen in air

and atmosphere


Related Questions

Complete a Punnett square that shows a test cross for a tall pea plant (RR x rr). Place the plant to be tested at the top of the Punnett Square.

Answers

I'm not 100% sure what you're asking but is this what you mean?

All plants are tall.

        r           r

R      Rr         Rr

R      Rr         Rr

Answer: In pea plants, a tall stem is dominant (R) over a short stem (r).

This means the genotype of the tested plant is RR so that one would be on top of the Punnett's square.

The Punnet's square would be as follows:

(I got this right on my assignment)

What is the meaning of science?

Answers


The intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment.

Do y’all know any of the answers to these?

Answers

well , where’s the food web ?

What are some things that are hard to classify as living or non living things?

Answers

Answer:

Non living things can be classified into

They exist in nature or are made by living things. There are three groups of nonliving things. They are solids, liquids, and gases.

Explanation:

Help me please with bio

Answers

Answer:

It’s the second one

Explanation:

I know for sure it’s the second answer. But I’m not sure if the third answer is also it. I hope this helps.

is the intrusion the youngest rock in the section how do you know?

Answers

Answer:

Explanation:

The fault cuts through all three sedimentary rock layers (A, B, and C) and also the intrusion (D). So the fault must be the youngest feature. The intrusion (D) cuts through the three sedimentary rock layers, so it must be younger than those layers. By the law of superposition, C is the oldest sedimentary rock, B is younger and A is still younger.

1. Which of the following is not a natural occurring event of carbon dioxide being added to the environment?
animal respiration
deforestation
volcano eruption

Answers

Answer:

animal respiration is what I guess it is.

Answer:

Deforestation

Explanation:

I had it on a quiz earlier today

I need help i don’t know this :(

Answers

Answer:

I think D

Explanation:

dahil yan yung totoo na answer

Which of the following landforms is not made by groundwater erosion?

A. stalactites

B. stalagmites

C. mountains

D. sinkholes

Answers

Answer:

mountains?

Explanation:

Answer: Mountains

Explanation: Groundwater erodes rock beneath the ground surface, especially carbonate rock. Groundwater deposits material in caves to create stalactites, stalagmites, and columns. And we know that a sink whole is also known as a cenote, sink, sink-hole, swallet, swallow hole, or doline, is a depression or hole in the ground caused by some form of collapse of the surface layer. Most are caused by karst processes – the chemical dissolution of carbonate rocks or suffosion processes

Use the diagram to answer the below question.
* 2 NADP
Light
Light
NADPE To Light
Independent
Reactions
STROMA
ADP.
Bectroncamers
Thylakad
membrane
ATP
Photasystem
Te Light
Independent
Reactions
2 HD
THYLAKOID SPACE
The concentration of hydrogen ions is greater inside the thylakoid space than outside. Which reaction releases
hydrogen ions inside the thylakoid?
Oa the breakup of water molecules
the formation of water molecules
Ос the break-up of NADPH
Od the formation of NADPH

Answers

Answer:

i think it's C, but I'm not sure

what can be analyzed to determine how many base pairs a segment of dna has?

Answers

The total number of base pairs is equal to the number of nucleotides in one of the strands (each nucleotide consists of a base pair, a deoxyribose sugar, and a phosphate group).

Where does the energy for a wave come from? A: the potential energy of height
B:the kinetic energy of a push
C:the kinetic energy of a pull
D:the static energy not the molecules hitting​

Answers

Answer:

the potential energy of height

What’s the. Answer please

Answers

Answer C

Explanation:

Can yall help me with this

Answers

There is nothing here sir

Help me out with this question

Answers

Carbohydrate monomer because it’s glucose which is a sugar

Answer:

the answer is B, hope this helps

Explanation:

i think its bacteria but im not sureee (the fox diagram thing)

Answers

Explanation: your right it is bacteria , could i pls get a brainlesttttt

Explain how biochemical evidence, including DNA, helps scientists to learn about early life on Earth.​

Answers

one class of biomedical evidence of evolution, homologous molecules, is biomedical’s that are very similar in structure and function in all organisms

Which of the following statements regarding plant speciation is correct?

Animals adapt to their surroundings to improve reproduction rates.
Animals adapt to their surroundings to improve survival rates.
Animals adapt to their surroundings to reduce reproduction rates.
Animals adapt to their surroundings to reduce survival rates.

Answers

Answer:

The answer is Animals adapt to their surroundings to improve survival rates.

Explanation:

This is because even if they increased reproduction rates it wouldn't matter if they are dying.

Answer:

Animals adapt to their surroundings to improve survival rates.

Explanation:

What happens during asexual reproduction?

no change in chromosome number

a change from diploid to haploid

a change from haploid to diploid

Answers

Answer:

what is the role of centrioles apart from spindle fiber

When observing an organism's phenotype, how can we predict the
genotype?

Answers

When observing an organisms phenotype you can predict the genotype with the dominant and recessive genes present. The genotype is the physical trait. The phenotype is responsible for the trait.

Brainliest?

What viral reproduction cycle allows the cell to reproduce it self along with the viral genetic material
A. lytic cycle
B. lysogenic cycle
D. both

Answers

The answer is lysogenic cycle

Using the codon chart below, identify the correct amino acid sequence created
during translation for the following mRNA:
AUG CAC UUA UAA
Thr-Pro-Gin-Arg
Met-Leu-Phe-Pro
Val-Arg-Gly-Stop
Met-His-Leu-Stop

Answers

Answer:

e

Explanation:

what type of bond do water molecules form with eachother​

Answers

hydrogen bonds

In the case of water, hydrogen bonds form between neighboring hydrogen and oxygen atoms of adjacent water molecules. The attraction between individual water molecules creates a bond known as a hydrogen bond.

Which of the following will lead to fewer deaths of large numbers of animals in an area? Select one: People polluting the land, causing the animals to get sick. People taking the land to build new houses, causing the animals to lose space to live and find food. People removing too many nutrients and resources from the land, causing the animals not to have any food. People building homes in a smaller area.

Answers

Answer: People polluting the land,

Explanation:

People pollute the land every day and the land and ocean is never ending with animals and sea animals, and this can’t be stopped.

other options, animals can provide for themselves because they are made for the wild hope this helped...

Which of the following is NOT a characteristic of bacterial soft rot?
O Foul odor
O Tissues become saturated
O Leaf tips dry out
P
ang
Bacteria clogs vascular system
1
2.

Answers

Answer:

answer is leaf tips dont dry out

large blooms of algae on the surface of a lake keep which abiotic factor from reaching the bottom?

Answers

Answer:

water that flows over the ground and can carry pollution to water. Algal blooms choke out other plants and decrease the amount of oxygen available for living organisms.

Explanation:

Please help!! Due today
Click picture to make bigger thank you :)

Answers

Answer:

B. The mechanism the organism uses to obtain energy

Explanation:

I really focused on the question it aske me

Answer:

C. the way the organism transfers to the offspring

Explanation:

I NEED HELP PLEASE

will mark brainliest

Answers

Answer:

As one goes up the other does as well for the first 2 but they aren't proportional (it is not simple cause and effect as there is a lot of factors)

The last question is to decrease their emissions as rising temperature is being effected by rising CO2 levels and rising temperature can cause a feedback loop causing more rising temperature

Explanation:

A group of students is walking in the park, and one of them takes a picture of a pollen grain that is being blown by the wind. What caption can the student use for this picture?

Answers

Answer:

Gene flow at work

Explanation:

Answer:

gene flow at work

PLEASE ANSWER QUICK

Which statement best explains the difference in the mouse populations on Island A and Island B at the end of the 20 years?



Question 2 options:

More brown mice were in the half of the original population that was sent to Island B than in the group sent to Island A.


Conditions on Island B favored the individuals with brown fur, while both fur colors were evenly favored on Island A.


On Island A, the allele for gray fur was dominant, while on Island B, the allele for brown fur was dominant.


The recapturing of mice on Island A and Island B was done differently.

Answers

Answer:

Conditions on Island B favored the individuals with brown fur, while both fur colors were evenly favored on Island A.

Explanation:

Answer:

A i think-

Explanation:

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