The angle subtended by a section of a circle is
100". If the perimeter of the sector is 150cm
calculate the radius​

Answer:

What are the necessary components required to start the transcription of a gene?

Explanation:

Initiation. RNA polymerase binds to a sequence of DNA called the promoter, found near the beginning of a gene. Each gene (or group of co-transcribed genes, in bacteria) has its own promoter. Once bound, RNA polymerase separates the DNA strands, providing the single-stranded template needed for transcription.

I Hope this helps!

Initiation.

RNA polymerase binds to a sequence of DNA called the promoter, found near the beginning of a gene. Each gene has its own promoter. Once bound, RNA polymerase separates the DNA strands, providing the single-stranded template needed for transcription.

What is transcription?

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2 ) Fertilization

Fertilization is the process in which gametes (an egg and sperm) fuse to form a zygote. The egg and sperm are haploid, which means they each contain one set of chromosomes; upon fertilization, they will combine their genetic material to form a zygote that is diploid, having two sets of chromosomes. A zygote that has more than two sets of chromosomes will not be viable; therefore, to ensure that the offspring has only two sets of chromosomes, only one sperm must fuse with one egg.

In mammals, the egg is protected by a layer of extracellular matrix consisting mainly of glycoproteins called the zona pellucida. When a sperm binds to the zona pellucida, a series of biochemical events, called the acrosomal reaction, take place. In placental mammals, the acrosome contains digestive enzymes that initiate the degradation of the glycoprotein matrix protecting the egg and allowing the sperm plasma membrane to fuse with the egg plasma membrane. The fusion of these two membranes creates an opening through which the sperm nucleus is transferred into the ovum. Fusion between the oocyte plasma membrane and sperm follows and allows the sperm nucleus, centriole, and flagellum, but not the mitochondria, to enter the oocyte. The nuclear membranes of the egg and sperm break down and the two haploid genomes condense to form a diploid genome. This process ultimately leads to the formation of a diploid cell called a zygote. The zygote divides to form a blastocyst and, upon entering the uterus, implants in the endometrium, beginning pregnancy.

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Process of fertilization: (a) Fertilization is the process in which sperm and egg fuse to form a zygote. (b) Acrosomal reactions help the sperm degrade the glycoprotein matrix protecting the egg and allow the sperm to transfer its nucleus.

To ensure that no more than one sperm fertilizes the egg, once the acrosomal reactions take place at one location of the egg membrane, the egg releases proteins in other locations to prevent other sperm from fusing with the egg. If this mechanism fails, multiple sperm can fuse with the egg, resulting in polyspermy. The resulting embryo is not genetically viable and dies within a few days.

Cleavage, the Blastula Stage, and Gastrulation

A zygote undergoes rapid cell divisions (cleavage) to form a spherical ball of cells: the blastula; this will further develop into a blastocyst.

Answer:

jellyfish, reptiles, mammals

Explanation:

I took a test on edg in 2021

The lists in the correct order of evolutionary history is jellyfish, reptiles, mammals.

This is the process which involves the modification of structures in

organisms as a result of natural selection thereby making them more fit in

the environment.

The jellyfish has less complex and specialized and mammals has the most

which is why option D is the most appropriate.

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The examples of natural pollution are Volcanoes, Forest fires, and floods.

Pollution may be defined as the presence of any unwanted or contaminated substances in the atmosphere.

Car exhaust, pesticides, and trash are examples of artificial pollution.

Volcanoes release certain poisonous gases which are harmful to environment. Flood carries contamination like pesticides, chemicals, sewage waste, etc.

Forests fire are responsible for the increase of carbon dioxide in the environment.

Therefore, examples of natural pollution are Volcanoes, Forest fires, and floods.

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Answer:

the movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy.

Answer:

good for you lol

Explanation:

The last one

Explanation:

Offspring that are adapted to a specific environment is the beneficial for the survival of a species.

A species is an organism's fundamental unit of classification, taxonomic rank, and biodiversity. The biggest group of organisms in which any two individuals of the right sexes or mating types can conceive a fertile offspring, usually by sexual reproduction, is referred to as a species.

A species can also be identified by its karyotype, DNA sequence, anatomy, behavior, or ecological niche. In addition, since fossil reproduction cannot be studied, paleontologists use the chronospecies idea.

There are between 8 and 8.7 million different species of eukaryotes, according to the most recent accurate estimate.

All species are given a two-part name, or "binomial," with the exception of viruses.

Therefore, Offspring that are adapted to a specific environment is the beneficial for the survival of a species.

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The three statement related to the renewable sources of energy should be clean & non-pollutting, conventional resources, and available in nature.

It is the energy that should be collected from the renewable resources that should be replenished on the timescale based on the human.

It involved the sources like the sunlight, wind, rain, etc.

Therefore, based on this, we can conclude that the option 1, option 3, and option 4 is correct.

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Answer:

Cell is the basic , functional unit of life

An atom is the smallest unit of ordinary matter that forms a chemical element .

Answer:

it's option D

Explanation:

scientist specialize in that area because single celled organisms form the basis of evolution. According to the scientist the first living thing on Earth were the single celled organisms.

Answer:

single-celled organisms are the least understood in the ocean

Answer:

O 9.25

Explanation:

The following mathematical equation is given in this question:

5x + 2y = 20

Using this equation, we're asked to find the value of y when x = 0.3. Hence, we substitute 0.3 for x in the equation as follows:

5x + 2y = 20

5 (0.3) + 2y = 20

1.5 + 2y = 20

Collect like terms

2y = 20 - 1.5

2y = 18.5

Divide both sides by 2

y = 18.5/2

y = 9.25

Therefore, y = 9.25 when x = 0.3

Answer:

The term extinction's dictionary meaning, is the process of when a species, plant, or any other term for animal family, goes extinct. In more, basic terms, it means when a certain species of animal dies out completely.

This can happen due to several reasons, some being massive natural disasters. Others die out due to an unknown predator entering an ecosystem in which it doesn't belong, therefore disbalancing it.

Examples of extinct animals are Dinosaurs, but their exact reason for going extinct is unkown, there are only theories.

There are also many animals in danger of going extinct, for example Bees.

Hope this information could be of use to you!

Answer:

Met-Ser-Lys-Val-Phe

so none of the above

Explanation:

Answer:

Ah ok. Sorry this is due to what its called, not what it is.

Explanation:

This is a table of the MRNA that is transcribed to make protiens.

The UCAG found on the graph are the different RNA bases.

A single base codes for a single part of a protien.

A codon is made up of 3 base pairs. A single codon codes for a protien.

So lets look at the first 3 bases - AUG

This looks like MET

So, let me show you how I found this:

The first base pair is A, looking at the left 4 letters, we see is the third row down.

The second base pair is U, looking at the top, we see is this first row.

Now we know its the third row down, and the first one to the left.

So now we have 4 possible protiens.

To find the exact one, use the third base pair, which is G. This is the bottom of the mini row found in the right side.

Doing this, we find that MET is the protien.

To be honest I dislike this table, so I will be using the one attached below.

Anyway, this MET protient removed option B.

Next we have Codon CUC

Looking at my graph below, I see that CUC codes for LEU.

This removes ooptions A and D, leaving C.

But now we need to check wether it is C or none of the above.

Again, I take codon AAG, and find lys. This is in anser C.

I take codon UGC, and find cys. This is in answer c.

Finally, I take codon UUC, and find PHe. This is answer c.

So C is your answer.

Hope this makes sense and helps!

I personally find my graph easier to use, and fi you agree, then I suggest you use it!

Answer:

False, the body systems have to work together to maintain homeostasis

Hope this helps!

Answer:

true

Explanation:

backed up by the levels of organization

Answer:

A. It is warming faster than previous natural cycles.

Answer:

homeostasis regulate body glucose

Answer:

Hi, there, but I don't see multiple choices. May you please give me the answer choices. So I can help you

Explanation:

THYMINE

When dealing with base pairing in DNA...

g pairs with c and c with g.

a pairs with t and t with a.

But when dealing with base pairing involving RNA...

a pairs with u and u with a.

t pairs with a.

Hope this helped, if it did please mark me brainliest!

(I had misread your question before. Uracil couldn't be that base because it's not in DNA, and is in translation.)

Answer:

D. It travels fastest and Stronger gravitational pull when closer to sun.

Explanation:

The statement which describes a planet as it moves along its orbit is: D. It travels fastest and experiences a stronger gravitational pull when it is closest to the sun.

A planet can be defined as a large astronomical (celestial) body that has sufficient mass to allow for self-gravity and make it assume a nearly circular shape, which is known as hydrostatic equilibrium.

Generally, a planet revolves in its orbit around the Sun in the solar system and it has a cleared neighborhood.

In conclusion, when a planet is closest to the Sun, it travels fastest and experiences a stronger gravitational pull as it move along its orbit.

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Explanation:

A is the answer

hope it helps !!

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Answer:

D.) It can lead to an increased risk of parasite infection.

Explanation:

Monoculture is a system of farming or cropping whereby a single crop is planted on a given area of land. The opposite of this system of farming is known as multiple cropping, where a variety of crops are cultivated.

One disadvantage of planting a variety of crops over a single crop in monoculture is that it increases the risk of parasite/pest attack on the crops. Parasites and pest can easily shift to the variety of crops planted in the farm.

The correct answer is A. 0N, as there is no net force acting on the box.

The net force in this scenario can be determined by calculating the difference between the applied force and the opposing force. In this case, if you are pushing on a box with a force of 5N, and the box pushes back with an equal force of 5N, the net force would be zero.

Net force is the vector sum of all the forces acting on an object. In this situation, the applied force of 5N is countered by the opposing force of 5N exerted by the box. Since the forces are equal in magnitude and opposite in direction, they cancel each other out.

When the net force is zero, it means that the forces are balanced, resulting in no acceleration or movement of the object. The box would remain at rest or continue moving at a constant velocity if it was already in motion.

Therefore, the correct answer is A. 0N, as there is no net force acting on the box.

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Answer:

So if the size of the pore is small then the rate of the diffusion will be very slow as the molecules will move from high concentration to low concentration in very slow rate.

Explanation:

I hope it helps you

Answer:

A. so that less energy is lost in cold environments.

Explanation:

When it’s cold outside, your body makes sure to keep the blood flowing to your core and vital organs to keep them warm. This can change the amount of blood flow to your hands and feet, making them feel cold. This is normal. The blood vessels in your hands and feet constrict (spasm) when it’s cold, to prevent heat loss from your core

Answer:

A) The loop did not cross into quadrant 1 when streaking quadrant 2

Explanation:

The streak for isolation technique is a method used to get isolated bacterial colonies. This technique consists of, in a petri dish with culture medium, where, with the help of an inoculation loop, the bacteria are scratched on one side of the dish. This side is called the first quadrant. This inoculation loop must then cross with the first quadrant and be dragged to the second quadrant, where new lines must be made. This allows a part of the bacteria from the first quadrant to be carried over to the second. The inoculation loop must cross the second quadrant again to inoculate the third quadrant, and so on.

In this case, we can see that for bacterial colonies to grow in all quadrants, it is essential that the loop crosses in the first quadrant to cross out the second quadrant. If not, only the first quadrant will have bacterial colonies.

Answer:

A) The loop did not cross into quadrant 1 when streaking quadrant 2

Explanation:

There are many different techniques to isolate bacteria populations. Using solid media such as agar, you can perform the streak for isolation technique.

What you want to do by using this technique is to get an isolated colony of the bacteria of interest. And to get it, you need to dilute a sample or inoculum of bacteria as much as possible by streaking it. Every time you do it, you take fewer amounts of cells from the original sample, separating them each time more, to the point of having only one single cell apart by a few millimeters from another cell. The isolated cell divides and forms a new pure colony.

So basically, you need to imaginary divide the agar plate into four quadrants.

Answer:

Yes

Explanation:

It is important because if he does not know, he may be hammering a nail with a wrench. That may break the wall itself.

Answer:

Yes definitely

Explanation:

if they dont have the right tool something can go wrong

Answer:

Photosynthesis and ___cellular respiration_____ create a cycle.

They create a cycle because the products of photosynthesis become the __reactants________of cellular respiration.

Cellular Respiration is important because  it converts __glucose________  into usable energy for the body.

Photosynthesis is

important because it provides the atmosphere with ___oxygen________

and gives glucose to other orgamisms.

This makes __autotrophs____producers  that give energy to ___consumers____.

Answer:

reproduction it's important for the survival of all living organisms

Answer:

Reproduction is necessary for the continuation of the generation of particular species rather than the species extinct from the earth. It is also a source of recombination.

Explanation:

Answer:

The Troposphere

Explanation:

But in the troposphere, near ground-level, ozone molecules are both air pollutants, threatening the health of living things, and greenhouse gases, trapping heat and contributing to climate change. A small amount of ozone does occur naturally at ground level. Plants and soil release some. Some migrates down from the stratosphere.

Answer:

Explana.

troposphereation: