One necessary condition for the evolution of the first life on earth was
A)the presence of dna
B)abundant oxygen in the atmosphere
C)the presence of photosynthetic organisms
D)the presence of liquid water

Answers

Answer 1

Answer:

The Presence of Liquid Water

Explanation:

Answer 2
D) the presence of liquid water

Related Questions

Study the image. Note that the sediment sizes are labeled A, B, and C. Which type of sediment will be deposited first? Which type of sediment will be deposited last?

Answers

Answer:

Sediment C and A

Explanation:

took test rn

Answer:

The first answer is C

The second answer is A

Explanation:

I did it on and got it correct

" Today, we push economies to grow whether or not they make us thrive. Especially in the richest countries, we should strive for economies that make us thrive whether or not they grow" what type of economic model does this statement represent ​

Answers

Answer:

the doughnut

Explanation:

The new economic theory by the English economist Kate Raworth, called Doughnut Economics, emphasizes the need for a prosperous and sustainable economy to balance the quality of life and environment. She stated that today that economists are deluded by a focus on expanding GDP at the expense of other crucial aspects that build a prospering, inclusive economy. She argues that the economic goal should be to meet the needs of everyone within the resources of the world and appeals to a need for economic mechanisms that will boost the economy with an adequate balance of social and environmental needs.


8) The plasma membrane is composed of a double layer of molecules called
molecules, which have a
head and 2
tails pointing toward each other. The mechanical stability of the membrane lies with
molecules. The protein molecules function in
and

Answers

Answer:

Your answer would be Phospholipids

Explanation:

The phospholipid bilayer that makes up the plasma membrane has hydrophobic tails and polar heads that face each other to repel water.

What is a plasma membrane?

The membrane that divides the inside of the cell from the external environment is known as the plasma membrane, sometimes known as the cell membrane, and it is present in all cells.

A cell wall is affixed to the plasma membrane on the outside of both bacterial and plant cells. The plasma membrane is made up of lipids and proteins, much like every other cellular membrane.

Therefore, the phospholipid bilayer, which creates a permanent barrier between two aqueous compartments, is the membrane's basic structural component.

Learn more about lipids, here:

https://brainly.com/question/1578184

#SPJ5

ASAP How do animals store energy? A. As Glycogen in granules. B. As cellulose in plastids. C. As starch in granules. D. As glycogen in plastids.

Answers

Answer:

How do animals store energy?

A. As starch in granules.

B. As cellulose in plastids.

C. As Glycogen in granules.

D. As glycogen in plastids.

Explanation:

The answer is glycogen in granules because only plant cells can have plastids. Animals store energy by using glycogen for quick energy and will store it in granules. This is why the answer is C. As Glycogen in granules.

The animals store energy in the form of glycogen granules. The correct option is A.

What is glycogen food?

Glycogen is a multibranched polysaccharide of glucose that acts as an energy storage system in animals, fungi, and bacteria.

The polysaccharide framework is the primary form of glucose storage in the body.

Thus, the correct option is A.

For more details regarding glycogen, visit:

https://brainly.com/question/13776886

#SPJ2

What is the range for the following set of measurements?
27°C, 12°C, 31°C, 19°C, 23°C, 11°C, 17°C
A. 0°C to 100°C
O B. 27°C to 17°C
O c. 1°C
D. 11°C to 31°C​

Answers

Answer:

the range of the following set of measurement is D option

15. What is the difference between a gamete and a normal cell?

Answers

Explanation:

2. Body cells undergo the process of mitosis while gametes undergo a process called meiosis. 3. A body cell contains a complete number of chromosomes and is called a diploid cell while a gamete contains only half the number of chromosomes of its parent cell, and it is called a haploid cell.

Answer:gamete are only the egg and sperm aka the sex cells while everything else isn’t

Explanation:

What is the correct order of
evolution of the major types
of pants?
A. Non vascular, Gymnosperm,
Vascular seedless, Angiosperm

B. Vascular seedless, Non
vascular, Angiosperm,
Gymnosperm
C. Non vascular, Vascular
seedless, Gymnosperm,
Angiosperm
D. Angiosperm, Gymnosperm,
Vascular seedless, Non vascular

Answers

Answer:

The correct order of evolution  is C- Non Vascular, Vascular seedless, Gymnosperms, Angiosperms.

Explanation:

The first plants to evolve were the non-vascular bryophytes like fungi and algae.

The next to evolve were vascular plants that supported a vascular tissue system but lacked seeds.

Gymnosperms are vascular plants that have seeds.

The seeds produced in the gymnosperms could undergo fertilization easily as the wind acted as pollen carrier.

The next to evolve were angiosperms or flowering plants.

Flowering plants have highly modified shoots that carry male as well as female gametes.

Which bone is indicated by the arrow in the diagram below? A diagram showing the appendicular skeleton. An arrow points to the bone in the lower arm closest to the body. humerus ulna radius clavicle

Answers

Answer:

ulna

Explanation:

The ulna runs parallel to the radius in the lower arm.

The ulna is in line with your pinky finger and is the bone closest to the body. The radius is in line with your thumb and allows you to rotate your wrist.

Hope that helps.

What is the nature Conservancy? a.An organization that collects resources to buy land and establish Nature preserves b.And organization that rescues Endangered species c. And organization that runs breeding programs for endangered species d.An agency of the EPA that manages wilderness areas

Answers

I believe the answer is B
I believe the answer is A. An organization that collects resources to buy land and establish Nature preserves. (Please mark brainliest of correct )

Which fat has only single bonds between the carbon atoms in the fatty acid? saturated unsaturated polyunsaturated monounsaturated

Answers

Answer:

the answer is A, saturated

Explanation:

I just took the quiz on edge

Saturated fatty acids have single bonds between carbon atom and fatty acid. The correct option is A.

What are saturated fatty acids?

Saturated fatty acids are composed of a carbon chain that contains no double bonds.

Even though fatty acids are structural components of cell membranes, this saturated arrangement adds to reduced cell fluidity.

These are not required nutrients. They are obtained primarily through the consumption of animal fats.

One of the two primary kinds of fat is saturated fatty acids. Stearic acid, palmitic acid, myristic acid, and lauric acid are examples of typical dietary saturated fatty acids.

Saturated fatty acids have hydrocarbon chains that are solely linked by single bonds. There are one or more double bonds in unsaturated fatty acids.

Thus, the correct option is A.

For more details regarding fatty acids, visit:

https://brainly.com/question/13528495

#SPJ6

In what way is DNA replicated

Answers

Answer: DNA replication occurs in two steps.. first, a so-called initiator protein unwinds a short stretch of the DNA double helix. Then, a protein known as helicase attaches to and breaks apart the hydrogen bonds between the bases on the DNA strands, thereby pulling apart the two strands.

Explanation:

Answer:

The initiation of DNA replication occurs in two steps. First, a so-called initiator protein unwinds a short stretch of the DNA double helix. Then, a protein known as helicase attaches to and breaks apart the hydrogen bonds between the bases on the DNA strands, thereby pulling apart the two strands.

Explanation:

People who inherit familial periodic paralysis often develop very low blood potassium
concentrations. How would you explain that the paralysis may disappear quickly when potassium
ions are administered intravenously?

Answers

The answer I think would be
When potassium is injected intravenously it is pumped back by the sodium-potassium pump(Na+-K+). Then, resting potential is reestablished and causes the nerves to go back to their normal state (muscles contract normally.)

What is the effect of the inheritance of one trait on the inheritance of a second trait?” with a hypothesis. Remember that you can either assume that the two genes are independent or that they are linked. What results would you expect in either case?
Hypothesis:

Answers

I believe that the two genes are equal

What do you think of genetic engineering? Are GMO's good or bad?

With genetically engineering humans, should we be tampering with the human genome? Do you think humans can stick to a limit (only curing diseases) or do you think humans would begin engineering people?

Answers

I wrote a paper about this not too long ago! I don’t know a lot about GMO’s, but I can answer your questions about genetic engineering in humans.

I feel that genetic engineering has a lot of promise, especially with eradicating genetic diseases, but it is still very new and research needs to be done with extreme caution. If gene editing technology was allowed to be used in more than just extreme circumstances, there would be a lot of room for misuse, things we can only imagine now, like changing someone’s physical features (eye color, skin color, etc). This is just one issue that could lead to less diversity and discrimination of a whole new kind, and just kind of spiral from there. There have been people who have died during experimental genetic engineering, I read a study where it was used to cure a handful of children of a genetic disorder, but then the tampering led to about half of them being diagnosed with a type of cancer that came directly from the gene editing, and at least one passed away. All this to say, genetic engineering can be a good thing, but there do need to be limits and further research should tread very lightly.

Kind of a long answer, sorry, but I hope this helps!

A wave is known to have a frequency of 20 Hz and wavelength of 0.5 m. Find the velocity of this wave.

Answers

Answer:

take 20 * 0.5 to get 10 m/s

Explanation:

Which component of Earth’s atmosphere is decreased due to photosynthesis? ozone oxygen hydrogen peroxide carbon dioxide

Answers

Answer:

The answer is carbon dioxide

Hope this helps you

Answer:

carbon dioxide

Explanation:

Bacteria with the ability to break down certain types of plastic are placed with a colony of E. coli bacteria that lack this ability. Plasmid transfer occurs between the two colonies of bacteria and some of the E. coli gain the ability to break down plastic as well. What inference can be drawn about the nature of plasmids from this observation? A. Plasmids are carbohydrates which provide structural support. B. Plasmids are lipids which provide energy for the cell. C. Plasmids are proteins which build tissues. D. Plasmids are nucleic acids which can pass on traits

Answers

Answer:

D. Plasmids are nucleic acids which can pass on traits

Explanation:

A Nucleic acid is one of the four biomolecule polymers in living systems. It is made up of monomeric units called Nucleotides. RNA and DNA are the two nucleic acids in existence and they function in storage and expression of genetic information.

According to the question, a colony of bacteria that can break plastics were mixed with the colony that can't break plastics. The two different colonies engage plamids, which conferred the ability to break plastics to some of the colonies that previously couldn't. This tells us that the ability to break plastics in the certain bacteria colony is GENETIC.

If the trait is genetic, the plasmid must be a nucleic acid because of the ability to genetically pass on traits. Note that, a plasmid is an extra-chromosomal DNA (nucleic acid) capable of replicating on its own. Hence, plasmids are nucleic acids which can pass on traits.

What is an important relationship animals have with other organisms in their habitat?

Answers

Then they classify the ecological relationships they observe as mutualism, commensalism, and ... predation—behavior of one animal feeding on another ... parasitism—a symbiotic relationship where one organism benefits and one is harmed. 2. ... Have students use a Crittercam video to identify ecological relationships.:

Symbiotic relationships and a biotic relationship

Please answer this biology question

Answers

Answer:

1. The objective lenses on a compound light microscope sample can be magnified either, 40x, 100x or 400x as it  does have powers 4x, 10x, and 40x on the maximum power setting.

At 40x magnification Stella will see cell upto 5mm.

At 100x magnification Stella will be able to see cell and cell components upto 2mm.

At 400x magnification Stella will be able to see cell and cell structures more closely, 0.45mm, or 450 microns.

2. The white blood cells are stained here in purple and can be identified with their shape and size of nucleus in comparison to the red blood cells have bioconcave shape and smaller to the wbc, but the function of white blood cells does not allow them to have a set shape. And the white transparent part are platelets.

Lysis is best describes as

Answers

Answer:

The destruction of the cell by rupture of the cell wall or cell membrane.

Explanation:

Lysis refers to the breaking of the cell wall or cell membrane. Without the cell wall or cell membrane, the cell wouldn't be able to hold its structures or its shape anymore. You can think of it as a cell exploding without its cell wall or cell membrane.

9. Earth's crust and uppermost mantle form the
O lithosphere
O asthenosphere
O hydrosphere
O atmosphere

Answers

Answer:

lithosphere

Explanation:

The lithosphere is the outer part of the earth, consisting of the crust and uppermost mantle.

Answer:

Lithosphere

Explanation:

Earth's lithosphere. Earth's lithosphere includes the crust and the uppermost mantle, which constitutes the hard and rigid outer layer of the Earth. The uppermost part of the lithosphere that chemically reacts to the atmosphere, hydrosphere, and biosphere through the soil-forming process is called the pedosphere.

Have a good day and stay safe!

Mackerel live in the surface waters of the sea. Toadfish live on the seabed in deep water.
(b) The concentration of oxygen is higher in the surface waters than it is in water close to the
seabed. Suggest why.

Answers

Answer:D

Explanation:

i just took the test

When a long bone is fractured at the epiphyseal plates, how will the fracture affect the bone’s growth?

Answers

Answer:

when the bone gets fractured at the epiphyseal plates the treatment should be done quickly , but if it is not treated immediately then it will affect the growth which may cause long and short limbs. so, if there is fracture in epiphyseal plates it should be treated very soon.

hope u will understand it.

2. The theoretical new force that may be causing an increase in the speed of
O the big bang
O light theory
O dark energy
the big crunch

Answers

Answer:

Dark energy

Explanation:

A mysterious force that repels gravity

Dark energy
Explanation-is an unknown form of energy that affects the universe on the largest scales. The first observational evidence for its existence came from supernovae measurements, which showed that the universe does not expand at a constant rate;

Animals in the same phylum may have different nervous system structures. For example, octopuses have large, complex brains while clams have a simple _____ network.

Answers

Answer:

The answer is ring - like

Clams have the ganglia that form a ring around esophagus and that is why this network is called ring - like.

hope this answer correct (^^)..

The Answer would probably be ring -like

Where is our sun located in the Milky Way?
O at the tip of one of the spiral arms
O within one of the spiral arms
O at the exact center of the galactic nucleus
O in the galactic halo

Answers

Answer:

B is the answer

Explanation:

The sun is located within one of the spiral arms, the Orion Arm to be exact.

B is the answer to your question,to be specific it’s located in the Orion arm

A_____ Cell is one that has one copy of each chromosome

Answers

Answer: Haploid

Explanation:

A Haploid cell that has only one copy of each chromosome which can be  paternally or maternally-derived

I hope this helped  

I believe the answer is Haploid.

A haploid cell is one that has one copy of each chromosome. (Please Put brainliest if correct )

Match the hydrologic term to its definition.



surface runoff



subsurface runoff



groundwater runoff



groundwater discharge



ground water returns back to land



falling rainwater that gets absorbed into the soil



falling rainwater that flows over the ground



water that percolates into the aquifer

Answers

Answer:

Explanation:

Surface runoff: falling rainwater that flows over the ground.

Subsurface runoff: the water that infiltrates in the vadose zone; an example is falling rainwater that gets absorbed into the soil

Groundwater runoff: describes water pulled by gravity across land's surface, replenishing groundwater and surface water as it percolates into an aquifer.

Groundwater discharge: this describes movement of groundwater from the subsurface to the surface i.e. ground water returns back to land.

ground water returns back to land - groundwater discharge

falling rainwater that gets absorbed into the soil -  subsurface runoff

falling rainwater that flows over the ground - surface runoff

 water that percolates into the aquifer - groundwater runoff

edmentum

Which of the following describes the location of the tropical zone? Between the temperate and the polar zones Closest to the equator Farthest from the equator Near the North Pole and South Pole(✿◠‿◠)

Answers

Answer:

Closest to the equator

Explanation:

The tropical zone is in the middle region of the Earth, which is the closest to the equator.  Mark as brainliest please:) I hope this helps.

Answer:

Closest to the equator

Explanation:

What is a biome i need help on this

Answers

Answer:

A biome is a large area with a unique climate. The plants and animals share common characteristics in the environment they live in.

Examples of biomes are tundra, forests, grasslands, and deserts.

Answer:

This is a community of plants and animals that have common behaviour for the place they live in.

Explanation:

They are found in a range of continents.

Other Questions
Import the "reacttimes" data set and consider the 50 observations of the variable "Times" to be a sample from a larger population. Find a 99% confidence interval for the population mean. Construct a normal quantile plot and comment on the appropriateness of the procedure. At a sale, all clothing was marked down 15%.Beth Steinfeld bought a blouse originally pricedat $10.95 and a scarf for $8.85. What was theamount discounted on her purchase?PLEASE ANSWER ASAPI WILL GIVE BRAINLIEST ANSWER !! Select the correct answer.2- 3 and 9(-) = 2:3 - 2find fx) - g(x).A-253 - 21 - 22B. -23 - 25.23 - 25 + 232D. -23 + 22 2^3x =8 pls Help me find the value of x In at least 150 words, describe how the popularity of works such as The Way to Wealth represented a gradual transformation in American values. An 820 N Marine in basic training climbs a 12.0-m vertical rope at a constant speed in 8.00 s. What is her power output Find the magnitude and direction of the force on the particle a charged particle is moving in the xy horizontally plane it enters the region of space with a magetic field of magnitude oriented so that it makes an angle with respect to the:_____. Vicky charged her phones battery to 100 percent. Then she took the phone off the charger. When her phone is off the charger, it loses 5 percent of its battery life every hour. What function models the percentage of battery life left in terms of the number of hours since Vicky took it off the charger? Part A Identify the independent and dependent quantities from the functions verbal description. What is the independent quantity, and which variable should represent it? 16.ABDisIn the figure, ABCD is a parallelogram. If theareas of APDC and AAPD are 48 cm2 and30 cm2 respectively, then the area of APBC isA. 15 cm2B. 18 cm2C. 24 cm2D. 36 cm2 A straight wire carrying a current of 7.2 A has a field of 8.9 103 T at right angles to it. What length of wire in the field will experience a force of 2.1 N? 2.6 103 m 3.1 101 m 1.3 101 m 3.3 101 m Look at the events on this historical timeline. In one paragraph, identify which event you think was most influential in Chinas recent history and explain why. A consultant has recommended that you modernize a production line. Costs include $650,000 in equipment, a $10,000 investment in net working capital at the time of installation, and $5,000 in delivery and installation costs. The consultant has billed the firm for $7,500 for her analysis of the project. If the project is undertaken, an employee training program costing $8,000 would be required. The old machinery has no book value but can be sold for $100,000. Your firm's marginal tax rate is 34%. What is the initial outlay associated with the project? Which sentence describes this picture? PLEASE ANSWER QUICKLY!!!!!!!!!!! Write the polynomial as a product: mn mk + xk xn Korey is planning to open a comic book store. In his first year of operation, Korey expects to average $1,000 of profit each month. He then expects profits to increase by 6% each year for the next 4 years. How much does Korey expect to make in profits in his fifth year of operation? A = P (1 + r) superscript t The image of ABC after a reflection across Line E G is A'B'C'. 2 triangles are shown. Line E G is the line of reflection. Line segment D D prime has a midpoint at point F. Line segment C C prime has a midpoint at point G. Points B and B prime share a point. Which triangle must be a right triangle and why? A'B'C' is right because it is the image of ABC. ADC is right because AA' intersects AC at A. BCC' is right because B lies of the line of reflection. BGC is right because Line E G is perpendicular-to CC'. You find the presence of cocaine in amoeba in a sewer. You classify this chemical as a(n) _________ toxin Which statement accurately describes the habitability of the planets?The moons of the terrestrial planets and the gas giants are habitable.The terrestrial planets (except Earth) and the gas giants are not habitable.The atmosphere of the gas giants makes them more suitable for life than the terrestrial planets.The chemical substances on the terrestrial planets make them more habitable than the gas giants. Dr. Denise Mitchell was recently selected to be the new vice president of instruction at a liberal arts college. In this position, she is responsible for approving all curriculum additions and changes across the college. This need to look at the colleges overall educational offerings and to envision how all of the courses contribute to the colleges educational mission will require her to make substantial use of her _____ skills.