what does it mean to say early Earth was abiotic? someone plz help​

Answers

Answer 1

Answer:

abiotic basically means NON LIVING (like water,soil, air)

so.. earlier like thousands of years back there was no life on earth thus it is said that earth was abiotic

but later on biosphere arrived through maybe cynobacteria...


Related Questions

A native forest is complex and biodiverse. Once disturbed, it is impossible to
replace all of the species of the original forest and to recreate their
relationships. Which of the following endeavors is limited by this fact?

Answers

Answer: Reclaiming and replanting forests in deforested answers

Explanation: just took quiz

Answer:

Reclaiming and replanting forests in deforested areas

Explanation:

just did the quiz

Help please!

1. Which of the following is not a function of the cell membrane?

A. Supporting the cell wall
b. Delimiting the cell, separating its internal environment from the external environment.
c. Detecting external environment signals
d. Protecting the cell against the action of various agents

Answers

I think it is A not sure

replicate the following strand of DNA:
ATGAACCATTCAGTATGG

Answers

Answer:

I only know A can only pair with T and G only pair with C I hope this helps

Explanation:

If it helped please give me brainliest

Which statement is scientifically based? Mutations rarely occur. All mutations are harmful. Some mutations can be contagious, like infections. Mutations are not passed from parent to offspring.

Answers

Answer:

Mutations rarely occur

Explanation:

Mutations are genetic changes, i.e., alterations in the DNA sequence. Generally, mutations have deleterious effects, but there are exceptions where mutations may confer an adaptive advantage in a given environment. Mutations are often deleterious, and thereby these genetic changes are rare events. In consequence, mutation rates, i.e., the frequency by which new mutations arise in an organism over time, are generally very low. Finally, mutations that arise only in germ cells can be inherited from a generation to the next generation, while somatic mutations cannot be inherited.

The statement which is scientifically based is: A. Mutations rarely occur.

Mutation can be defined as a change (alteration) in the nucleotide sequence or genetic sequence of a living organism, which result in a variant form that may be transmitted to successive generations.

Basically, mutation is typically caused by a change (alteration) of single base units in deoxyribonucleic acid (DNA) or the insertion, deletion and rearrangement of an organism's genes or chromosomes.

However, mutations rarely occur in most living organisms due to the regulation and control of cell growth through cell cycle.

In conclusion, mutations rarely occur in most living organisms based on scientific researches.

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What does the law of conservation of energy state?
O A Energy can be created from nothing.
OB.
Energy cannot be destroyed.
ОС.
Energy cannot change forms.
OD.
The total amount of energy in a system changes continuously.

Answers

Answer:

Energy cannot be created nor destroyed.

So...

OB

Explanation:

How do our bodies use calcium?​

Answers

Answer:

the body needs calcium to maintain strong bones and to carry out many important functions. Almost all calcium is stored in bones and teeth, where it supports their structure and hardness. The body also needs calcium for muscles to move and for nerves to carry messages between the brain and every body part.

Explanation:

Answer:

the body needs calcium to maintain strong bones into carry out many important functions almost all calcium is stored in bones and teeth where it supports their structure and hardness the body also needs calcium for muscles to move and for nerves to carry messages between the brain and every body part

Which of the following organisms is an autotroph?

Answers

Answer:

the 4 examples of Autotrophs?

What are Autotrophs?

Algae.

Cyanobacteria.

Maize plant.

Grass.

Wheat.

Seaweed.

Phytoplankton.

Explanation:

Algae, along with plants and some bacteria and fungi, are autotrophs. Autotrophs are the producers in the food chain, meaning they create their own nutrients and energy. Kelp, like most autotrophs, creates energy through a process called photosynthesis.

Answer: I think it's a Tree

Tracheae definition

Answers

Answer:

The airway that leads from the larynx

Explanation:

Answer: Insects breathe through a complex network of tubules, the tracheae. Large tracheae connect to spiracles opening at the surface of the body,  extending from the larynx to the bronchial tubes where air enters and carbon dioxide exits.

Define trawling, and explain the ecological damage associated with it.

Answers

Trawling refers to the process of fishing that uses a fishing net through the sea water behind one or more boats. It is a common method of extraction of sea living resources. It is the main cause of the degradation of the seabed which threatens the biodiversity

What would happen if the axis of the earth were NOT
tilted with reference to the plane of its revolution as
shown in the second figure below?

A
There would be no
difference at all.

b,The sun would rise in the
west and set in the east.

C
In any place, the weather
will be more uniform
throughout the year.

d,At any time, the weather
will be almost the same
throughout

Answers

Answer:

c prolly if not  that then d

Explanation:

thats my best bet. all the answer choices are kinda sucky, no offense

If at any given time the Earth's axis was not tilted with respect to the plane of its rotation, the weather would be approximately the same throughout the world. So, the correct option is (D).

What is Rotation of Earth?

Earth's rotation or Earth's rotation is defined as the rotation of the planet Earth around its own axis as well as the change in the orientation of the rotation axis in space, where the Earth rotates eastward, in prograde motion. . As seen from Polaris, the North Pole Star, the Earth turns counterclockwise.

This is the movement of something through one complete circle which the daily rotation of the Earth upon its axis. The Earth's axis runs from the North Pole to the South Pole which takes the Earth 24 hours, or one day, to make one complete rotation around this invisible line.

If the earth's axis was not inclined to the plane of its orbit, there would be no seasons and humanity would have to suffer.

Thus, if at any given time the Earth's axis was not tilted with respect to the plane of its rotation, the weather would be approximately the same throughout the world. So, the correct option is (D).

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1 = organit celular cu rol în procesul de respiraţie
2 = organite cu rol în secreţia celulară
3 = nume dat membranei vacuolelor
4= se găsesc la jumătatea fusului de diviziune în timpul metafazei
5 = au rol în procesul de fotosinteză
6 = împreună formează vacuomul celular
7 = coordonează întreaga activitate a celulei
8 = proces prin care se înmulţesc celulele
9 = organit cu rol în diviziunea celulară
10 = organite celulare descoperite de George Emil Palade

Answers

Wat language is this

Adaptations have no affect on an organism's ability to survive in a specific environment.
True or False

Answers

Answer:

False

Explanation:

They do

What is the term used to describe the fact that cells are suited to perform a particular function within an organism?

Answers

Answer:

specialized cells :))))

Nitrogen fixation is carried out mainly by...
1. Humans
2. Animals
3.Bacteria
4.Plants

Answers

I think the answers are 2

HURRYY!!

Why have American's portion sizes become larger in the last decade?

Answers

Answer:

American's portion sizes have become larger in the last decade due to the expanding of food industries and marketing campaigns that tell us to eat more.

Explanation:

The growth of food industries in the last decades to obtain more money in combination with the media influence has led us to eat more, thus why the size of our portions has increased their size.

Another theory states that people always want to eat more, and the industry has only fulfilled this demand, but it is not clear why, in the past, this did not happen.

Georgie believes that a special juice will increase the productivity of his workers. He creates two groups, two workers per group. Both groups are assigned the same task, stapling a set of papers. Group A is given the special juice to drink while they work. Group B is not given the special juice. After an hour, Georgie counts how many stacks of papers each group has stapled. Group A stapled 1,320 stacks while Group B stapled 2,200 stacks. Georgie concluded that the juice was not effective in improving productivity.

How would you improve Georgie's experimental design to produce a more valid conclusion?

Select one:
a. Georgie should use more than two people per group.
b. Georgie should also consider employee attendance as a variable.
c. Both groups should take the juice, just a different amount of it.
d. Georgie should not do this experiment as it has no practical implications.

Answers

A- Georgie should have use more than two people per group.

Answer:

♡ hi angel ♡

-- your answer is a

~Clara ✧・゚: *

Explanation:

What are some of the reasons that cell division is important to organisms choose all that apply

Answers

Answer:

Look below

Explanation:

Growth of organism

Repair of damaged tissues

Healing and regeneration

Reproduction

Answer:

a

Explanation:

Which bird is best adapted to survive in an environment dominated by seed-bearing plants?

Answers

Answer:

hummingbirds

Explanation:

Over many generations, hummingbirds have evolved beaks that are long, thin and well adapted to reach into flowering plants and extract nectar

hummingbirds evolved with long thin beaks and well adapted to reach, extract nectar from  flowering plants.

What is bird adaptation ?

An adaptation is any inherited mechanism that makes an organism better able to survive in the changing environment.

It can be structural, behavioral features which help organism to survive.

Example is a hawk's feet and sharp claws are types of adaptations help it to hunt and capture mice.

Another adaptation is habitat where organisms having a specific habitat adapt different features.

Bird beak adaptations is the best example where they use their beaks for acquiring meals, consuming, help in climbing, and protection.

Bird beaks adapted enough to assist them to discover specific meals inside their habitat.

Birds have adapted feathers which make them flight simpler like Long feathers and tail of birds provide them steadiness and insulation.

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what is a simplified definition of glycolysis

Answers

Answer:

the enzymatic breakdown of a carbohydrate (such as glucose) by way of phosphate derivatives with the production of pyruvic or lactic acid and energy stored in high-energy phosphate bonds of ATP.

Answer:

Definition of glycolysis. : the enzymatic breakdown of a carbohydrate (such as glucose) by way of phosphate derivatives with the production of pyruvic or lactic acid and energy stored in high-energy phosphate bonds of ATP.

Explanation:

I just googled a simplified definition

The Sun is the primary source of energy that drives all the biogeochemical cycles on Earth. Which statement best describes how the Sun’s energy powers the water cycle?

Answers

Answer:

What statements???

Explanation:

If you could tell me in the comments, I could probably help you.

An example of a place with a microclimate is

a. a mountain range capped with ice.
c. an orchid growing in a rain forest.
b.a forested park in a desert city.
d. coniferous trees in a temperate forest.

Answers

It’s A forested park in a desert city

An example of a place with a microclimate is a forested park in a desert city. The correct option is b.

What is a microclimate?

A microclimate is a small and distinctive climatic area that can be artificial or natural. It is present in between another big climatic area. Examples are a park, a valley, a part of a city, etc.

A desert is an area where only sand is present because these areas are very dry and very less vegetation is present here. The vegetation is adapted to the desert climate.

A forested park will be a green area that contains trees and animals. The deserted area is different from the forest area. So a forested area will be a microclimate in the deserted areas.

Thus, the correct option is b. a forested park in a desert city.

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9. What is the name of the enzyme that produces ATP in the electron transport chain?

Answers

Answer:

Atp synthase

Explanation:

it is happening during the process of Chemiosmosis

The plum pudding model of the atom states that

each atom has an overall negative charge.
each atom has a dense, positively charged center.
an atom is a solid, indivisible sphere that makes up all matter.
an atom is made up of electrons in a sea of positive charges.

Answers

It is d hope this helppsss

Answer:

D

Explanation:

Took the test lol

If three out of four Cubs from the cross had sandy-colored fur, the allele for sandy-colored fur was? -dominant. -recessive. -monohybrid. -heterozygous. -dihybrid.

Answers

yo mama yeah i forgot what you said yeah that’s yu

If clouds and ice reflect or send back
extra wave lengths, what can you
hypothesize can happen as we continue
to increase global temperatures?

Answers

Answer:

Wave lengths will shorten (become less extra)

Explanation: Less clouds and ice will be here once the temperature increases to where ice melts and there isn't enough water to form clouds. Meaning that there wont be extra wave lengths

Carbon (C)
Atomic #: 6
Atomic Mass: 12

Answers

Question:  Calculate the number of electrons using the information given. Write the number on the line and then draw the electrons into the Bohr model.

Assuming the atom has a neutral charge, the number of electrons will be the same as the number of protons.  The number of protons is given by the atomic number, 6, so there are six electrons.

The first "ring" of the atom (closest to the center) can take two electrons, so draw two electrons there.  The second (outer) "ring" of the atom can take the remaining electrons, so draw four electrons there.

Atomic mass is irrelevant in this specific problem.

chloroplast (has chlorophyll inside) is where sunlight breaks apart water and carbon dioxide to form sugar and oxygen true or false

Answers

Answer:

i'm pretty sure this is true the sugar it makes is called glucose

Explanation:


RNA is a molecule with characteristics and a role similar to DNA. Why is RNA necessary for DNA to fulfill its function?

Answers

Answer:

eeee

Explanation:

The study of the cell is called cell biology.

The correct answer is C.

In an organism, the expression of the character is due to the formation of the protein molecule in the body which shows its effect.

Protein is formed by the amino acid and the information stored to code the amino acid is in RNA.

Hence, DNA is converted into RNA for the formation of protein and it is also a checkpoint to avoid the mutation.

Hence, the correct answer is C.

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Please help I'll give brainless plz

Answers

Answer:

Respiration

Explanation:

Respiration

they produce ethanol and co2

2Which describes a function that is completed by both the
male and female reproductive systems?
a. Nourishing and protecting a developing
embryo.
b. Producing gametes (sperm and egg cells) that
unite inside the female reproductive system.
c. Removing nitrogenous wastes and excess water
from the blood.
d. Producing gametes (sperm and egg cells) that
unite inside the male reproductive system.

Answers

Answer:

b. Producing gametes (sperm and egg cells) that unite inside the female reproductive system.

Explanation:

The "gametes" refer to the sex cells in humans. The female sex cells are called "egg cells" and these are being produced by the ovary. The male sex cells are called "sperm cells" and these are being produced by the testicles. After copulation, there's a probability for the egg cells and sperm cells to unite. They unite inside the female's reproductive system, specifically inside the "fallopian tube."

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