2. How many days is the average menstrual cycle for women?
a) 7 days b) 14 days c) 21 days d) 28 days​

Answers

Answer 1
the average length of a women's menstrual cycle can last 28 days.

the answer is D

Related Questions

When carbon dioxide in the atmosphere increases, the amount of energy absorbed by Earth’s surface should

Answers

I think the amount of energy will increase

Which level of organization includes all the other levels of organization?

Answers

Answer:

B.) Organisms

Explanation:

Answer:

B.

Explanation:

Edge 2022

Select which option correctly Identifies if the following cross section of a stem is a monocot or a dicot and explains the correct reason why.
A. dicot because the vascular bundles are arranged randomly
B. monocot because the vascular bundles are arranged randomly
C. monocot because the vascular bundles are arranged in a pattern
D. dicot because the vascular bundles are arranged in a pattern

Answers

Answer: The following cross section of a stem is a monocot because the vascular bundles are arranged randomly. Correct option is B.

Explanation:

The flowering plants form the largest group in the plant kingdom. They are more highly evolved than gymnosperms because they have an abundance of water and food conducting vessels known as the VASCULAR BUNDLES..

The angiosperms are grouped into two namely:

---> Dicotyledons and

--> MONOCOTYLEDONS: These are the most advanced plants. They tend to be more efficient and specialised because they have fewer parts. As such they show a very high degree of adaptation to their environment. The VASCULAR BUNDLES which is defined as the conducting vessels (transport system) made up of xylem and phloem, are arranged randomly. The xylem is the water conducting tissue which also had a strengthening function while the phloem is the transports organic molecules ( food). The vascular bundles are scattered because they lack cambium and therefore do no undergo secondary growth.

6.) State the principle of dominance? I

Answers

Answer:

Please find the answer below

Explanation:

According to the convener, Gregor Mendel, the law of dominance states that one allele of a gene called DOMINANT ALLELE possess the ability to mask the phenotypic expression of another allele called RECESSIVE allele.

This law explains that in a heterozygous state of a gene, the dominant allele will always be expressed over the other. For example, in the trait of height, if T is tall and dominant, it will mask the allele of the other phenotype.

Effector molecule binding changes the behavior of enzymes by altering the equilibrium between the tense (T) state and the relaxed (R) state. Effectors are classified as either homotropic or heterotropic. Match each description with homotropic effectors, heterotropic effectors, or both. Some statements may not describe either type of effector.
Homotropic effector Heterotropic effector Both an enzyme's substrate alters the K of an enzyme works by altering the T/R ratio accounts for the sigmoidal nature of a velocity versus substrate concentration curve alters the V. of an enzyme

Answers

Answer:

Explanation:

Homotropic effector-[tex]\text{accounts for the sigmoidal nature of a velocity versus substrate concentration curve}[/tex][tex]\text{An enzyme's substrate.}[/tex]Both -[tex]\text{Works by altering T/R ratio.}[/tex]

The phrase  [tex]\text{"accounts for the sigmoidal nature of a velocity versus }[/tex]

is relevant and can be applied for homotropic effector molecules since the heterotropic effector molecules have the possibility and affinity to change the sigmoidal curve to a more potential hyperbolic curve contingent upon the allosteric effector to be positive or negative modulator.

The expression isn't relevant for both homotropic and heterotrophic effectors since the two of them can tie to the allosteric site of allosteric enzymatic compounds.

The phrase [tex]\text{"works by altering the T/R ratio"}[/tex] is significant and can be applied for both homotropic and heterotropic effectors.

The expression [tex]\text{"an enzyme's substrate"}[/tex] is significant and applied for homotropic effectors just as when substrate molecules tie to the allosteric site of enzyme then it is regarded as homotropic effectors. The heterotropic effectors are effectors apart from substrate molecules.

The phrase [tex]\text{"alters the} \ K_m \ \text{ of an enzyme"}[/tex] is not applied and insignificant to none of the heterotropic or homotropic effector molecules since [tex]K_m[/tex] is significant for the enzymes that obey the Michaelis-Menten equation, but allosteric enzymes do not obey the Michaelis-Menten equation. Homotropic and heterotropic effectors are viable and efficient for allosteric enzymatic chemicals that don't contain

There is a great diversity of metabolism in microbes, with new types being discovered regularly. For example, the use of nanowires by the ANME and SRB was only discovered relatively recently (the study described in the introduction was published in 2015). Understanding microbial metabolism is essential to understanding how these organisms function within an ecosystem, including understanding symbiotic associations such as that between ANME and SRB. The terminology below describes metabolic types. Match each metabolic type with the best description.


a. __________use inorganic compounds for energy and organic compounds as a carbon source.
b. __________perform CO2 fixation and utilize C02 as their sole carbon source.
c. __________are organisms that accomplish the catabolism and degradation of a substance through a cooperative effort with one or more other microorganisms.
d. __________ Use light as an energy source and CO2 as a carbon source.
e. __________Use organic carbon as their carbon source.
f. __________ Use inorganic electron donors and CO2 as a carbon source.
g. __________ Use inorganic organic chemicals as energy

1. Syntrophs
2. Autotrophs
3. Chemolithotrophs
4. Mixotrophs
5. Heterotrophs
6. Phototrophs
7. Chemotrophs

Answers

Answer:

a. mixotrophs

b. autotrophs

c. syntrophs

d. phototrophs

e. heterotrophs

f. chemolithotrophs

g. chemotrophs

Explanation:

Autotrophs are organisms that can synthesize their own food using carbon dioxide (CO2) and water (e.g., algae, cyanobacteria, plants, etc). Syntrophs are organisms that utilize products from other organisms (e.g., mites that consume human dead-skin). Phototrophs are organisms that synthesize their own food by using the energy provided by sunlight (e.g., green plants). Heterotrophs are organisms that cannot synthesize their own food, obtaining energy and nutrients by consuming other organisms (e.g., animals). Mixotrophs are flexible organisms that obtain their food by using a mix of different sources of energy and carbon. Protists that combine autotrophy and heterotrophy are considered mixotrophs. Chemotrophs are organisms that obtain energy by the oxidation of electron donors from the environment, by using both organic sources (chemoorganotrophs) and inorganic sources (chemolithotrophs). Examples of chemolithotrophs include sulfur/iron-oxidizing bacteria, while chemoorganotrophs include the most known bacteria and archaea.

Which of the following is the best definition for the term climate?

Answers

Answer:

climate is an area's weather over a long period of time. Weather is day-to-day and climate is the weather over long periods of time.

Explanation:

what type of weather is associated with a continental polar air mass ​

Answers

Answer: Cold and dry, originating from high latitudes, typically as air flowing out of the polar highs.

Explanation:

How does science lead to new technology and how does technology add to our scientific understanding of the natural world?

Answers

Science and technology help each other advance. Scientific knowledge is used to create new technologies. New technologies often allow scientists to explore nature in different ways and make new discoveries. Examples of technologies that have helped science advance include the telescope and microscope.


Fossils are the preserved remains of previously living organisms or their traces, dating from the distant past. Fossils that have been
collected offer unique insights into evolution over long timescales. However, fossils have some limitations. Select ALL the limitations
of using fossils as evolutionary evidence.
es )
A)
Fossils do not exist for large animals.
B)
Fossils only form in areas once covered by water.
Plate tectonics causes loss or displacement of fossils.
D)
Most organisms never fossilize, leaving holes in the fossil record.
E)
Because marine fossils are prevalent, this can lead people to believe they
were more dominant than they actually were

Answers

The limitation of using the fossils as evolutionary evidence should be plate tectonics, it never fossilizes, and marine fossils should be prevalent.

What is evolutionary evidence?

The evidence for evolution should be found at all type of levels of organization in living things and in the extinct species we aware of fossils.

It involved the limitations like the plate tectonics that resulted the loss, the organism should never fossilize, also the marine fossils should be prevalent due to which it is more dominant.

Hence,  the option c, option d, and option e are correct.

learn more about fossil here: https://brainly.com/question/20967484

If dylan which has AB- has kids with O blood, could they have a child with O blood. Explain...​

Answers

Answer:

If the kids have O blood and have children with someone else who has O blood or is a carrier, they could have children with O blood.

Explanation:

Punnett squares :)

what are the causes of biodiversity loss????​

Answers

Climate change, pollution, destruction of habitats, species extinction, invasive species, and such

what’s The definition of Troposphere

Answers

the lowest region of the atmosphere, extending from the earth's surface to a height of about 3.7–6.2 miles (6–10 km), which is the lower boundary of the stratosphere.

Answer: its basically in simple terms: the lowest point of the earth's atmosphere

Explanation:can i get brainliest :D

California condors (Gymnogyps californianus) are listed on the IUCN Red List as being critically endangered. Since 2003, the California Condor Recovery Program has been reporting their demographic data. In 2012 they estimated the number of individuals living in the wild to be 235. If their intrinsic rate of natural increase is 0.089 ind/year, predict the size of the California condor population in 2022.

Answers

Answer:

 ≈ 572

Explanation:

Predict the size of the California condor in 2022

we can predict this value with this relation below

Nt  =  No*e^(rt)  --- ( 1 )

where ; Nt = Future population , No = initial population,  r = intrinsic rate of increase ,  t = time

No = 235

r = 0.089

t = 2022 - 2012 = 10

Insert values into equation  1

Nt = 235 * e^( 0.089 * 10 )

    = 235 * e^0.89

    ≈ 572

Therefore the size of the California condor population in 2022 ≈ 572

Which type of bacteria will survive & reproduce ?

Answers

Answer:

What bacteria need to grow and multiply

Food (nutrients)

Water (moisture)

Proper temperature.

Time.

Air, no air, minimal air.

Proper acidity (pH)

Salt levels.

Follow me please

Mark brainliest

What is the likely effect of removing the wildcat on the population of ows and rabbits.

Think all the way down to the mouse.

PLZ HELP

Answers

Answer:

Rabbits would survive because there's 1 less predator preying on them, therefore they will reproduce more rabbits and rabbits will overpopulate. And the same thing will happen with the mice, therefore the owls will have less competition over food and their population will grow.

པས། Question 7 Which group can be considered to be the most complex of cells? protists fungi algae bacteria​

Answers

Answer:

I think Fungi is the correct answer

What helps a plant retain water

Answers

Answer:

the root

Explanation:

they hold water n they transport food

If 98 out of 200 individuals in a population express the recessive phenotype, what percent of the population would you predict to be homzygous dominant?

Answers

Answer:

49% is the answer for this question

What is the difference between learned behavior and an inherited behavior?

Answers

Answer:

Learned behavior is a trait that something learned to do, like how to read or ride a bike. Inherited behavior is instictual and naturally comes to an organism at birth, like sleeping or eating.

Turtles and leopards all have four limbs and an amnion. True The common ancestor of lamprey and lancelets had a vertebral column. False In this tree, frogs are the sister taxon of turtles and leopards. False Leopards and bass are more closely related than turtles and bass. False The taxon that shares the most recent common ancestor with frogs is the bass. True Leopards and lancelets have no common ancestor. False

Answers

Answer:

Explanation:

The objective is to conclude if the statements are true or false based on facts.

1)[tex]\text{ Turtles and leopards all have four limbs and an amnion. }[/tex] True

2) [tex]\text{The common ancestor of lamprey and lancelets had a vertebral column. }[/tex] False

This is because their ancestor is a Chordate who doesn't have a vertebral column but a notochord.

3) True

[tex]\text{Frogs are the sister taxa of turtles and leopards because they are more }[/tex]

[tex]\text{related to a common ancestor.}[/tex]

4) [tex]\text{Leopards and bass are more closely related than turtles and bass}[/tex]  False

This is because the bass is a fish that possess some characteristics traits related to an amphibian (turtle) as compared to a mammal(leopard).

5) [tex]\text{The taxon that shares the most recent common ancestor with frogs is the bass.}[/tex] False

The taxa of turtles share a more common ancestor with frogs compared to bass.

6) [tex]\text{Leopards and lancelets have no common ancestor. }[/tex] False

The common distant ancestor for leopards and lancelets is known as  Chordates

Catalysts increase the rate of chemical reactions.
True
False

Answers

Hiiooo the answer is False!

Answer:

T

Explanation:

rueeeeeeeeeeeee

Scientists build models based on what they know from previous research to derive testable hypotheses.Independently, both Watson and Crick and their competitor Linus Pauling constructed an incorrect triple-helix model with the nitrogenous bases arranged so they were on the exterior of the molecule and the phosphate groups on the interior. What evidence caused Watson and Crick to revise their model (CHOOSE 2)

Answers

Answer:

Hello. You didn't show the answer options, but we can consider that Watson and Crick revised the DNA model after seeing DNA images taken through Franklin's x-ray and by observing the pairing of the nitrogenous bases.

Explanation:

For a long time it was believed that the DNA molecule had 3 strands, instead of two, however this information was inaccurate and although defended by some scholars it was somewhat controversial and showed the need for further investigation. With that in mind, Watson and Crick decided that it was necessary to evaluate DNA in a three-dimensional way and therefore, they obtained x-ray images of DNA molecules, taken by Franklin. In these images, it was possible to notice that the DNA had two strands, instead of three. To prove this discovery, Watson and Crick analyzed the nitrogenous bases discovered by Chargaff and the way they were paired, coming to the conclusion that the DNA had two strands.

A. the tempatures on the islands
B. the available food on the islands
C. the available water in the islands
D. the number of mates on the islands​
Look at the picture Please.

Answers

B.) the available food on the islands
Since these different beaks were adaptions part of their evolution to be able to be more fit to survive with the food available on the island

. To calculate the probability that an individual taken at random from a population has a particular genotype (AA, Aa, aa), biologists usually think in terms of a pool containing all the alleles from all the parents, known as the gene pool. This is particularly useful when it is impossible to keep track of ancestry (otherwise known as a pedigree).

Answers

It is known as a pedigree chart

HELP PLEASE PLEASE PLEASE PLEASE

Answers

Answer:

one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.

Help

b) Describe the genotype of the person labeled B.
c) Describe the genotype of the person labeled C.
d) Could the person labeled D have a recessive allele?

Answers

Answer:

b) Genotype: aa

c) Genotype: Aa

d) Yes

Can someone please tell me which ones I am getting wrong? (my answers in parentheses)

Read the statements and decide if it applies to RNA, DNA, or both:

1. Has both purines & pyrimidine (Both)
2. Contains Ribose (RNA)
3. Has negatively charged phosphate groups (Both)
4. Contains hydrogen bonds between nitrogen bases (DNA)
5. The monomer is a nucleotide (DNA)
6. Composed of CHONP (? Both)
7. Contain the Uracil nitrogen base (RNA)

Answers

Answer:

5 is both RNA and DNA....they are building blocks are nuclotides because they are both Nucleic Acids

compare and contrast prophase of mitosis and prophase of meiosis1?​

Answers

Answer:  

The homologous chromosomes pair together in prophase 1 of meiosis, but they do not during prophase 1 of mitosis. This is achieved by a process known as synapsis, where the similar chromosomes pair according to sequence similarity. The homologous chromosomes are held together by a protein structure known as the synaptonemal complex in a chromosome body known as a tetrad (because it contains 4 replicated chromosomes known as chromatids) or bivalent (if the organism is diploid). This pairing during prophase 1 of meiosis allows recombination to take place between the homologous chromosomes. This occurs early during prophase but the manifestation of recombination only becomes visible during the later stages of prophase 1 and in metaphase 1. Because the chromosomes adopt different structures during prophase 1 of meiosis, this stage is sub-divided into 5 stages: leptotene, zygotene, packytene, diplotene and diakinesis. It is during diplotene and diakinesis that the physical manifestation of recombination can be seen. This is the presence of chiasmata (chiasma, singular). These are the sites where recombination, or exchanges between homologous chromosomes, has taken place. By the end of prophase 1, it is only the chiasmata that holds the homologous chromosomes together. This constriction make the tetrads adopt a variety of structures, the shape of which depends upon the number of chiasmata formed. The tetrads stay in this conformation until metaphase 1. Synapsis, the formation of the synaptonemal complex, the formation of chiasmata does not take place during prophase 1 of mitosis and these processes represent the major differences between prophase of the two nuclear divisions.

The stamen relates to ______________ by producing pollen
photosynthesis
cellular respiration
transpiration
growth
reproduction

Answers

Answer:

reproduction

I am typing this part because it wouldn't let me submit because I didn't have enough written

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