What day is considered to be the first day of a female’s reproductive cycle? When hormone levels are low and the uterus lining is shed. When hormone levels are high and the uterus lining is shed. When hormone levels are low and the ovary releases an egg. When hormone levels are high and the ovary releases an egg.

Answers

Answer 1
This answer depends on whether you are taking about the menstrual cycle or the ovarian cycle

Related Questions

Which of the following is NOT a characteristic of all living things?

Answers

Answer:

Ability to move is the answer

Answer:

ability to move

Explanation:

Biology PLESE HELPPPPPPPPPPPP

Answers

Answer:

disect

Explanation:

THREE catastrophic results of radiation on the Environment​

Answers

Answer:

adverse effect on human and enviroment.

Explanation:

UV radiation generates ground-level ozone (o3) and dome particulate matter( PM frequently called aerosol ) that include nitrate, silfate and organic aerosols causing adverse effects on humans and the environment. UV promotes the formation of hydroxyl radicals that act as cleaning agents for the troposphere.

Three catastrophic results of radiation on the environment are :

Generation of ground level ozone ( O₃) which degrades the environmentFormation of organic Aerosol which poses health threat to humansFormation of hydroxyl radicals which affects the troposphere.

The results of heavy UV radiation on the environment can lead to the degradation of the environment and pose a significant health threat to Humans as well in the environment. some of the results of radiation includes the formation of organic Aerosol which can pose health threat ( Lung diseases ) to humans. while hydroxyl radicals acting as cleaning agents in the troposphere damages the atmosphere as well.

Heavy atomic blasts is an example of heavy radiation which can lead to skin burns and Cancer in Humans.

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please help
Why would bacteria, plant and animal cells need to be different?

Answers

Answer:

Because each the cells would have different functions on different organisms.

Explanation:

Bacteria cells are usually prokaryotic which means that it is only composed of one cell. The single cell already has everything it needs so therefore, it isn't as complex as plant and animal cells.

Plants are autotrophs and produce their own food through photosynthesis. Plant cells would have a large vacuole, cell wall, chloroplasts, unlike animal cells.

Animal cells have all the cell organs that plant cells except a large vacuole, cell wall, and chloroplasts. Animal cells also have lysosomes in which plant cells don't.

122.90 to Sciencetific notation

Will give Brainliest to whoever can explain

Answers

1.2290 × 10^2 srry i learned this last semester I forgot the explanation lol

What are the three first eons collectively known as?

Answers

Answer:

Hadean, Archean, and Proterozoic Eons are currently all lumped together and they are all called/referred to as the Precambrian

The sperm of the gametophyte in moss and ferns require _________ as transport for fertilization to occur.
A. bees
B air
C birds
D water

Answers

Answer:

D water. (so sorry if it's wrong)

Answer:

D. water

Explanation:

what are the names of the three domains?

Answers

Answer:

the Archaea, the Bacteria, and the Eucarya


transport of oxygen in the blood is carried out by the cells known as; A.Leukocytes B.Erythrocytes C.Thrombocytes D.Hepatocyte​

Answers

Answer:

Erythrocytes. They are red blood cells that travel in the blood. Their characteristics of being red, round, and like rubber give them the ability to complete their specific functions. They carry oxygen from the lungs to the body and bring carbon dioxide from the body to the lungs.

Explanation:

27 Scientists are ____about the subjects they study.

Answers

Answer:

27 Scientists are learning about the subjects they study.

27 Scientists are teaching about the subjects they study.

Explanation:

What else would scientists do?

How well do nonpolar molecules dissolve in water?

Answers

Answer:

they do not dissolve easily

Answer:

Nonpolar molecules do not dissolve easily in water. They are described as hydrophobic, or water fearing. Water's hydrogen bonds create an environment that is favorable for polar molecules and insoluble for nonpolar molecules

Number the steps of Darwin's theory in order.

Answers

Answer:

1.Natural Selection

2.Overproduction

3.Variation

4.Struggle for existence

The steps in the theory of Darwin should be performed in the following order: Overproduction, Natural Selection, Variation, and the Fight for Existence.

Thus, the following sequence can be used to number the steps in Darwin's theory, which involves variation where people within a population display innate variances in their attributes. This step is followed by overproduction, when an organism produces more children than the environment can sustain, resource competition results.

People within a population battle for survival because of overproduction and a lack of resources. The last step is natural selection, which involves people having advantageous mutations that suit their environment better have a higher likelihood of surviving and reproducing successfully.

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HELP HELP



how could you increase the rate of the reaction in part C of the above image? select the best response based on the information given

a. expose the reaction to sunlight

b. decrease the amount of reactiant(s)

c. change the temperature

d. increase the amount of enzymes​

Answers

Answer:

c) change the temperature

To increase the rate of the reaction in part C of the above image, change the temperature. Thus option C is correct.

what are the factor affecting the rate of reaction ?

At higher concentration of reactants, more collisions leads to increase the rate of the reaction.

Changing the pressure can change the concentration leads to high number of collisions caused increases the reaction rate.

If a reactant is a solid and  grinding of these reactants can increase the surface area, will lead to faster the reaction.

Increase in temperature, means molecule have higher average kinetic energy and more collision causes an increase in the reaction rate.

The medium in which the reaction occurs is another factor like in aqueous solution the reaction go faster.

Catalysts lower the activation energy followed by increase the rate of a chemical reaction.

Thus option C is correct.

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Who is an activist ???​

Answers

An activist is a person who fight for something they believe.

Answer:

A person who is revolutionary for society changes

How does water’s molecular structure affect the solubility of substances on Earth? Provide a real-world example.

Answers

Answer:

The Anartica iceburgs

The polar covalently bonded water molecules act to exclude nonpolar molecules, causing the fats to clump together. The structure of many molecules can greatly influence their solubility. Sugars, such as glucose, have many hydroxyl (OH) groups, which tend to increase the solubility of the molecule.

The water molecule has an irregular distribution of its electrical charges and it is this irregularity that allows this molecule to be polar and able to solubilize other polar substances.

This can be explained as follows:

The water molecule is formed by two hydrogen atoms and one oxygen atom.These atoms share electrons with each other, forming covalent bonds.The electromagnetic force of the oxygen atom is much greater than the electromagnetic force of the two hydrogen atoms.This causes the hydrogen electrons to be attracted by oxygen, which promotes a displacement of these electrons.This displacement causes the hydrogen electrons to be closer to oxygen than to hydrogen.This creates an irregular electronic distribution in the water molecule, this creates the polarity of the molecule, causing the water to become a polar substance and a dipole.

With the irregularity of the electrical charge, water becomes a substance that can form bonds with positive and negatively charged molecules, which guarantees the solubility of a wide range of substances.

Some water-soluble substances are acids, ionic solids, gases, sugars, proteins, salts, among others.

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blank makes up cell membranes​

Answers

Phospholipids : This makes up the bi-layer which is the membrane's basic structure and has great control over what can enter and exit the cell, due to their hydrophobic tails and hydrophilic heads.

Cholesterol : This also controls entry and exit of substances as it also exhibits hydrophilic heads and hydrophobic tails. It also stabilises the membrane and affects its fluidity (the more there is, the more fluid is the membrane.)

Glycolipids : Those can act as receptor molecules (essential for cell-signalling), antigens and in cell-adhesion

Answer:

glycerophospholipids

Explanation:

With few exceptions, cellular membranes — including plasma membranes and internal membranes — are made of glycerophospholipids, molecules composed of glycerol, a phosphate group, and two fatty acid chains.

If this is correct please give me Brainliest.

What type of tissue is shown in the image above?

Answers

Answer:

osseous tissue is shown in the image above.

Answer:

It is osseous tissue.

Explanation:

They are same tissues.

HELPP!! (40 pts) Explain how the earth's core has impacted human life. Use evidence from the
text to support your answer.

Answers

Answer:

The earth’s core affects the shape of the ground we

walk on.

Explanation: The earth’s core is responsible for

not only the Rocky Mountains, but the formation of cities and societies that have lived there for

generations, such as Rocky Mountain National Park. It’s responsible for mountains that serve as barriers,

bringing to life divisions in culture unique to each side, while also posing a challenge to be crossed and

burrowed into, spurring on scientific innovation in the process.

The Earth's core has impacted human life in a variety of ways. As it is responsible for the generation of the earth's magnetic field and contains a history of the planet.

What do you mean by the Earth's core?

The Earth's core may be defined as the innermost layer of the Earth which is very hot and dense.

The Earth's core is responsible for any geographical locations like mountains, deserts, biodiversity hotspots, rivers, etc. It gives a structural appearance to the Earth. Human life is widely impacted and depends on all of these locations for their needs. All these geographical locations determine the climate of that particular area which is responsible for those people who are living at that location. Human life takes all its requirements from this core surface only.

Therefore, the Earth's core has impacted human life in a variety of ways. As it is responsible for the generation of the earth's magnetic field and contains a history of the planet.

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♡ Observations... ! I NOTICE... ? I wonder... Think = Reminds me of...

Answers

Answer:

???? whats this and where is the image

How are globes used?

Answers

Answer:

Globes are used to look at places, without a device. You can think of a globe as a map of the world wrapped up into a ball. If you wanted to look at the United States, you could twist the globe, and see it, and surrounding places like Canada or South America.

In a different case, they are used for school geography. The students are asked to find a place and point to it on the globe.

What is an analogous structure?
A. a structure that has the same form but
different functions like an arm, fin, and wing
B. a structure that has the same function but
different forms like the wing of a bee and wing of
a bat
C. a structure that used to serve a purpose but
does not have a purpose in modern species
D. a structure that is similar in all developing
embryos

Answers

Analogous structures are features of different species that are similar in function but not necessarily in structure ( that’s to help you but I think the answer is B)

PLEASEE HURRY I NEED HELP


We have studied the characteristics of life. An important characteristic of life is described in
this passage. What is it? Provide evidence from the passage.

Answers

Answer:

Sensitivity

Explanation:

The passage is all about observation, about seeing, hearing perseiving, and that is what the term sensitivity is mostly about

1. How far do the penguins travel to feed?

Answers

Answer:

Up to 7,000kilometers in 8weeks

Most penguins seek their food within 15.3 and 18.3 meters deep, but, according to their diet, there are two types of penguins: 1. Species who look for food about 20 kilometers off the coast, as:- African penguin ( Spheniscus demersus)

Of the thorns or spines and the greeny pigmented hard part of the cactus are the leaves and why?​

Answers

The spines of a cactus are exactly not the leaves, but they are the solid hard part that reduces the rate of transpiration, so as to level the water constant in the cactus' body. They are important as it can reduce the animals from eating the cactus.

However, camels have thick jaws and can eat cactus easily .

Hope it helps you...

(Answered by Benjemin)

Write any four adaptations observed in polar bear and explain how these
adaptations are useful in its survival.

Answers

Answer:

The polar bear

Their adaptations include: a white appearance - as camouflage from prey on the snow and ice. thick layers of fat and fur - for insulation against the cold. a small surface area to volume ratio - to minimise heat loss.

If you use a millimeter to measure something you are measuring what?
Distance
Mass
Time
Volume

Answers

Answer:

the anwer is distance option a or 1

Explain how populations of bacteria evolve to become antibiotic-resistant. (Hint: Some bacteria are naturally more resistant to antibiotics and some are easily killed by antibiotics.)

Answers

Answer:

adaptive evolution by natural selection of best suited variations and mutations by losing genetic material

Explanation:

If chocolate is made from a cocoa bean which is from a fruit, is chocolate made of fruit?

Answers

Answer:

Yes, i would say so. Fruit is good for you, chocolate is good for you, chocolate  is a fruit.

Answer:

Yes

Explanation:

Chocolate is made out of fruit because it came from Cocoa beans. Cocoa beans are also use in making coffee.

[tex]\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}[/tex]

what is cell? write it's functions??​

Answers

1) what is cell ?

Ans=> In biology, the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body. A cell has three main parts: the cell membrane, the nucleus, and the cytoplasm. ... Parts of a cell. A cell is surrounded by a membrane, which has receptors on the surface

2) Write it's functions ?

Ans => They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions. Cells also contain the body's hereditary material and can make copies of themselves. Cells have many parts, each with a different function

hope it is helpful to you ❤️

Four types of macromolecules

Answers

Answer:

carbohydrates, lipids, proteins, and nucleic acids.

Explanation:

Carbohydrates are the primary source of energy. Some are structural, such as cellulose.

Proteins have a wide variety of functions. They make up structures, and regulate chemical reactions as enzymes.

Nucleic acids, DNA and RNA, are involved in heredity and the production of proteins.

Lipids can be structural, such as the phospholipids in the plasma membrane, and they are a source of energy.

Other Questions
Use mathematical models, in the form of sketches, example problems, or calculations, to illustrate why density is a quantity that does not depend on the size of the sample tested. 14.25-5.14 find the sum or the difference Lost in the WoodsSamira was on a camping trip with her friends, Megan and Shayla. After setting up their tents, they decided to explore thesurrounding woods, equipped with flashlight and bottles of water. Shayla had told them about a waterfall located in the woods, and theywere eager to find it. It had been raining, so the ground was still soft and damp."Are you sure you know which way the waterfall is, Shayla?" Samira asked her friend after they had been walking for a while."Oh relax, Samira, and stop worrying so much! I'm sure it's around the corner and we'll be there soon."Samira wasn't entirely convinced, but she decided to take her friend's advice and stop worrying. The girls kept walking for another 15minutes, yet there was no sign of the waterfall. It had also started to get dark, so they decided to turn back and find their way to thecampsite. But when they turned around, they could not tell which way they'd come."Oh no, we're lost! What are we going to do? I don't want to spend the night in these woods!" Shayla said, tears streaming down herface."I knew we should never have come on this trip! I warned you guys that this might happen, and now we're lost!" Megan said, her5Which theme can the reader see in this passage?O A. Camping is boring and uneventful.. It is important to stay calm in stressful situations,C.Worrying helps to solve problems.ODFriends should always spend time together. how can picnics be part of social harmony For this item, any non-integer answer should be entered as a decimal, rounded to the hundredths place.Triangle ABC has coordinates A(-4,1), B(0,-2),and C(4,1).The perimeter of ABC is ___ units. EAB || CDBC II DEBD2015 Glynyon, Inc.Find the mZBAC, if ZDEC = 45 and mZEDC = 65O 50O 70O 60O 80 4x + 2 + 3x = 5 + 2x + 8What does x equal? Which color group is mostly used in this painting?warm colorscool colors HELPPPPPPPPPPPPPPPP!!!!!!!!!! 1. (01.01 LC)Read and choose the correct option.This country is considered the capital of the world for hummingbirds with tens of different species. (1 point)O Costa RicaO HondurasO GuatemalaO Panam Karen purchased n notebooks. They were 5 dollars each. Write an equation to represent the total cost c that Karen paid. Perform the indicated operations. Write the answer in standard form, a+bi.(5 + 6i)(5 - 6i) 1) State one change you could make to a CPU to make a computer work faster. 2) Write two places that instructions for the CPU come from. 1. Why were some colonists afraid of transporting more slaves to the colonies? I will give extra points please help!!!!! After reading the article "Life Isn't Fair - Deal With It", answer the following questions usingcomplete sentences:1. Review the lesson from the previous class. What method of persuasion is primarily used(ethos, pathos, or logos)? Be sure to explain and use textual evidence from the text to supportyour answer. A. "The existence of slavery impairs the industry and the power of anation; and it does so in proportion to the multiplication of itsslaves . . . "If slavery be permitted in Missouri, with the climate and soil andin the circumstances of this territory, what hope can be entertainedthat it will ever be prohibited in any of the new states that will beformed in the immense region west of the Mississippi?"-Senator Rufus King, Nile's Weekly Register, December 4, 1819B. "Rob us of our just portion of the territory which has been jointlypurchased by the treasures of the nation and the valley of theMississippi will be settled by the sons of the Eastern people, theinheritors of their fathers' prejudices . . . "And when they have succeeded in excluding from the Western settlements every Southern man, and shall have sent forth in everydirection swarms from the Northern hive, and missionary preachersagainst the cruelties and inhumanities of Southern slavery, a universalemancipation may be the next scheme suggested by visionaryphilanthropists or promoted by designing politicians."-Anonymous, Richmond Enquirer, December 23, 1819Compare the two statements (A and B) and decide which issue in the regionwest of the Mississippi most concerns both these two individuals. a. the settlement by northerners b. the prohibition of slavery c. the exclusion of southerners d. the weakening of the national economy (-9.-2). (4.2)Midpoint How to identify pairs of angles Adding which terms to 3x2y would result in monomial