EXPLAIN THE PERIODS CIRCLE .THANKS I DONT UNDERSTAND IT​

Answers

Answer 1

A menstrual cycle begins with the first day of your period, or menstruation and starts over again when the next period begins. Throughout a monthly menstrual cycle, your body makes different amounts of chemicals called hormones to prepare for pregnancy.


Related Questions

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

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What does Step III in the diagram below illustrate?

Answers

Answer:

Coversion of substrate into products

Explanation:

Which of the following is not necessary for evolution to occur?

Answers

All of these are necessary

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.

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It is d hope this helppsss

Answer:

D

Explanation:

Took the test lol

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

Which statements describe thigmotropism? Check all that apply.

Thigmotropism is a plant's response to touch.

Thigmotropism is a plant's response to an external stimulus.

Thigmotropism occurs only slowly.

Thigmotropism can occur quickly or slowly.

Thigmotropism may involve the way in which a plant grows.

Thigmotropism may involve the closing and opening of plant leaves.

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Answer:

Thigmotropism is a plant's response to touch.

Thigmotropism is a plant's response to an external stimulus.

Thigmotropism can occur quickly or slowly.

Thigmotropism may involve the way in which a plant grows.

Thigmotropism may involve the closing and opening of plant leaves.

Answer:

A) Thigmotropism is a plant's response to touch.

B) Thigmotropism is a plant's response to an external stimulus.

D) Thigmotropism can occur quickly or slowly.

E) Thigmotropism may involve the way in which a plant grows.

F) Thigmotropism may involve the closing and opening of plant leaves.

Explanation:

All of them except for c

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.

The Paramecium is an aquatic, single-celled organism. What is a challenge of homeostasis for this organism?
O muscle attachment points
O maintaining a stable size and shape
O constructing cytoskeletal elements
O creating enough protein

Answers

Answer:

I think it is the second option, maintaining a stable size and shape

Explanation:

I hope this helps, please give me brainliest

How can I get rid of my chapped lips? Everything I do doesn’t really work, I need to exfoliate them but idk how to do that. Is there any way I can stop biting them too? It’s a nervous thing I do when I’m anxious and I need a way to stop doing it thx.

Answers

Answer:

me too, but what i do sometimes is just chew on gum, it helps a lot

Explanation:

What would happen to the velocity of a river if the gradient increased?

Answers

Answer: Therefore, the rivers speed is at its maximum at the headwaters (high gradient, high energy) and at its minimum at the base level (no gradient, lowest energy). An incoming tide can reverse a river and cause it to flow against the gradient -- uphill! Erosion and speed have a direct relationship. As speed increases erosion increases as well.

Explanation:

The velocity of a river increases if the gradient increased.

What is Velocity?

Velocity may be defined as the rate of change of distance of a body with respect to time.

It is known that, if the gradient increases, the velocity of a river increases or the speed of the stream flows becomes faster. This is because the gradient is directly proportional to the velocity of an object.

Therefore, the velocity of a river increases if the gradient increases.

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Using the information recorded by seismographs, scientists learned more about the depth and density of Earth’s layers.

True
False

Answers

the correct answer would be TRUE

Answer:

True

Explanation:

I took the test, and got it right.

Folds and faults, extension stress, compression stress, and shear stress are all the result of what?

A. a sign that the end of the world is near

B. the imploding of the earth's crust

C. movement at the tectonic plate boundaries

D. tectonic plate disintegrating

Answers

Answer:

C. movement at the tectonic plate boundaries

Explanation:

Answer:

Hi,

I just learned about this! The answer is Movement at the Tectonic Plate Boundaries!

Explanation:

Some People Know this as Tectonic Stress!

Hope this helps you guys! Have a wonderful rest of you day!

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).

Learn more about Earth's Rotation, here:

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If a person did not eat for serveral days, which sequence of events would occur

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Answer:

Depends. If you have water you can last for months. If it's only food then first your cells start to eat at you from the inside out, then hallucination occurs, then you will try to eat anything around you no matter what it is, and then you end up falling asleep for a while.

Explanation:

Sorry if that was a creepy explanation hope this helped^^

HELP ON THIS ONE PLZ!!!!!!!!

Answers

Answer:

Active Transport

Explanation:

Active transport is what is used to help material move through a cell. In this picture it shows the material going through a part in the mitochondria which is like a door that opens to only certain things.

Answer:facilitated diffusion

Explanation: Because you smell like porch

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 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.

Read more: https://brainly.com/question/19755749

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.

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

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.

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:

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

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

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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

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

Brainliest to right answer!!

Answers

Answer:Sun

Explanation:

1. What is the difference between primary waves (P-waves) and secondary waves (S-waves)?


A. Primary waves are elastic waves that travel faster than secondary waves that are compression waves.


B. Primary waves are compression waves that travel faster than secondary wave with elastic rope-like movement.


C. Primary waves are compression waves that travel slower than the secondary wave with elastic rope-like movement.


D. Primary waves are rolling waves and secondary waves cause horizontal shifting, both move along the Earth's surface.

Answers

Answer:

Explanation:

Primary waves travel faster, move in a push-pull pattern, travel through solids, liquids and gases, and cause less damage due to their smaller size. Secondary waves travel slower, move in an up-and-down pattern, travel only through solids, and cause more damage due to their greater size.

The statement that best describes the difference between primary waves (P-waves) and secondary waves (S-waves) is as follows:

Primary waves are compression waves that travel faster than secondary waves with elastic rope-like movement.

Thus, the correct option for this question is B.

What do you mean by Primary waves?

Primary wave may be defined as a type of seismic wave that travels faster than secondary waves. They are longitudinal compression waves similar to the movement of a slinky. These are the first types of waves that are effectively detected by a seismograph.

On contrary, secondary waves are those waves that travel slower than Primary waves. These waves are detected at last by a seismograph. These waves travel only through solids.

Therefore, the correct option for this question is B.

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After burning fossil fuels, most of the carbon winds up in the:
A. atmosphere
B. ocean
C. rock layers
D. decomposers

Answers

Answer:

a

Explanation:

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 :))))

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

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

Answers

Answer:

False

Explanation:

They do

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