Which of the following statements best describes the role of hormones in the body? Hormones send chemical signals throughout the body to regulate body processes.

Answer:

Option B is the correct answer.

Because they both are multicellular and eukaryotes.

Hope it helps...

Answer: B

Explanation: They are both multi-cellar(having more than one cell)

Also they are both eukaryotes meaning that they both have a nucleus.

Answer:

Leaf are usually flattened green extension from the stem of a vascular plant.

a) Leaves functions :

- primary sites of photosynthesis and produces food for plants.

- leaves are an essential part of stem system and connect through vascular system to the rest of the plant so that free movements and exchange of nutrients, water and end products of photosynthesis.

b) leaves are differentiate into three types of tissues: dermal tissue, vascular tissue, and ground tissue. Dermal tissue protects the plant, and controls gas exchange in leaves, vascular tissues helps in translocation of nutrients and water.

Answer:

During the uterine month there are different phases through which the uterus passes, these phases are regulated by hormones and are responsible for producing the cycle necessary for fertilization.

Phase where menstruation occurs: This phase only happens if the woman was not fertilized and did not develop the diploid cell together with a sperm, since not being fertilized, all the uterine preparation that had been planned in the body for fertilization will be released as that we know "menstruation", in this phase estrogens and progesterone are low. The inner walls of the unfertilized uterus are released.

Follicular phase, in the follicular phase the ovaries prepare to release an egg and estrogen begins to rise. (From the first day of the period until ovulation)

Proliferative phase, in the proliferative phase, new vessels proliferate and the outermost layer of the uterus prepares itself for possible fertilization, is where spiral arterioles can begin to form again in the external cut of the myometrium.

Ovulation, here is where the mature ovum is called Graff's follicle, at this time estrogen reaches its peak and then descends.

Luteal phase, in the luteal phase the production of the luteal body is generated, at this stage progesterone takes center stage, and it is the range between ovulation and menstruation (if not fertilized)

Last phase, secret phase, in this phase there are two possible ends, if the woman is fertilized, the egg cell implants and begins the development of the embryo and if it is not fertilized, the entire external cut of the myometrium is prepared to be secreted.

Explanation:

A very important fact to clarify is that women are born with a quantity of ovules that at the end of this uterine cycle ceases to exist, this process is what we know as menopause.

That is to say that women have a quantity of ovules that will one day run out, and the body releases them from the menarche or the first menstruation, generating that in each released ovule a uterine cycle is completed, the day they end the woman will have reached menopause and would have no chance of being fertilized or completing the uterine cycle.

superficial layer of the endometrium is shed

basal layer of endometrium grows, forms gland and blood vessels

enriched endometrial blood supply

endometrial glands secrete nutrients into uterus

Answer:

specialized cells

Explanation:

i believe is the answer

Answer:

It is plasma

Explanation:

Plasma is the fluid component of blood

Plasma, a combination of water, sugar, fat, protein, and salts, is the term for the liquid portion of blood.

Blood is a bodily fluid found in the circulatory systems of humans and other animals that carries metabolic byproducts away from the cells as well as vital nutrients and oxygen to the cells.

Plasma, blood cells, and platelets are the main components of blood, which is a fluid made up of connective tissue. It moves throughout our body, supplying different cells and tissues with nutrition and oxygen. 8% of our total weight is made up of it. A typical adult has between 5 and 6 litres of blood. Red blood cells, white blood cells, platelets, and plasma are all components of the fluid connective tissue known as blood.

Therefore, Plasma, a combination of water, sugar, fat, protein, and salts, is the term for the liquid portion of blood.

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Answer:

Three proteins directly contribute to the proton gradient by moving protons across the membrane

Explanation:

The Electron transport chain is a group of proteins and molecules incrusted in the internal mitochondrial membrane and organized into four complexes, I, II, III, and IV. These complexes contain the electron transporters and the enzymes necessary to catalyze the electron transference from one complex to the other. Complex I contains the flavine mononucleotide -FMN- that receives electrons from the NADH. The coenzyme Q, located in the lipidic interior of the membrane, conducts electrons from complex I and II to complex III. The complex III contains cytochrome b, from where electrons go to cytochrome c, which is a peripheric membrane protein. Electrons travel from cytochrome c to cytochromes a and a3, located in the complex IV. Finally, they go back to the matrix, where they combine to H+ ions and oxygen, to form the water molecule. As electrons are transported through the chain, protons are bombed through three proteinic complexes from the matrix to the intermembrane space. These are complexes I, III and IV.  

Answer

a-6

b-1

c-3

d-4

e=5

f-2

Explanation:

The sequence shows synaptic transmission across  

The arrival of action potential at the presynaptic neuron,prompted the influx of calcium ions on the presynaptic membrane to the axoplasm.

This leads to the fusion of the  synaptic vessels with the post synaptic membrane,These empty their contents of neurotransmitters into the synaptic cleft.

The neurotransmitter e.g acetycholine  crosses the cleft to bind with the receptors on the postsynaptic membrane,

The leads to the opening of ligand gated sodium channels which leads to the transmission of the action potential as Post Synaptic Potentials.

This is transmitted along the axon of the postsynaptic neuron,as post synaptic potential which can either be excitatory or inhibitory

Answer: c.) to maintain homeostasis

Explanation: you're welcome!! cx

Answer:

C

Explanation:

Edge2020 quiz

Answer:

1. It could result in a loss of function of the protein product

2. It could result in a protein product with excessive activity

3. It could result in altered structure of the protein

Explanation:

Any changes that occur in the nucleotide sequence in the DNA of an organism is known as a mutation. Various forms of mutation can occur in the DNA sequence of an organism which could be as a result of insertion or deletion of a nucleotide in the DNA sequence.

Insertion of an extra nucleotide into a DNA strand within a gene could have any of the following effects on the protein protein;

1. It could result in a loss of function of the protein product of the gene whereby the protein can no longer carry out its normal functions

2. It could result in a protein product with excessive activity other the normal range at which it functions.

3. It could result in altered structure of the protein either in the primary, secondary, tertiary, or quaternary structure

Answer:

Hey there!

1. Load

2. Broom

3. Flagpole

Hope this helps :)

Explanation:

it is through the placenta.

it also protects the embryo from harmful substances

Answer: well you can consider half of the college campus population as underage. So the distribution to monitors would be easier. Making it illegal is just easier

Explanation:

Answer:

Merlin's paper discusses two types of data: artifactual and paleoethnobotanical. Give specific examples of each and describe the sources of data and the ...

Answer:

This question lacks options, the options are:

A) symbiosis

B) ecosystem

C) community

D) population

E) biosphere

The answer is D) Population

Explanation:

Living organisms in an ecosystem are usually found in numbers living together in a given area. This is termed POPULATION in ecology. A population refers to the group of living organisms that belongs to the same species living together in the same habitat and have the ability to interbreed i.e. mate and reproduce with one another.

This is the case in this question where many sandhill cranes (large flying birds) were observed in a particular area, which represented their habitat. Asides the group of sandhill cranes living together, they were also observed to be interbreeding. This was evident in the observation of two sandhill cranes hopping up and down around their bright orange baby. This shows that members of the population are capable of mating and reproducing fertile offsprings.

This observation completes what a POPULATION is all about, hence, a population was observed.

Answer:

The correct answer is - Microtubules

Explanation:

The cytoskeleton is a complex web of fibers present and find throughout the cytoplasm

It helps in organizing the shape size, structures and activities of the cell, anchoring many organelles . It is made up of of 3 types of molecular components:  Microtubules , Microfilaments , and Intermediate filaments.

Microtubules : it is the thickest of of all the 3 components of the cytoskeleton as it is made up of tubulin.  Maintenance of cell shape, organelle movements, chromosome movements in cell division, cell motility are major role of microtubules.

Thus, the correct answer is - Microtubules

Answer:

In animals that give live birth, the fetal circulation is the circulatory system of a fetus. The term usually encompasses the entire fetoplacental circulation, which includes the umbilical cord and the blood vessels within the placenta that carry fetal blood.

Blood flow in the unborn baby follows this pathway: Oxygen and nutrients from the mother's blood are transferred across the placenta to the fetus through the umbilical cord. This enriched blood flows through the umbilical vein toward the baby's liver. There it moves through a shunt called the ductus venosus

Answer:

D. autosomal recessive

Explanation:

Sickle cell is a hereditary disease caused by a mutation in one of the genes that encode the protein hemoglobin. It is inherited in an autosomal recessive pattern, meaning that both copies of the gene have mutations. The mutation causes the red blood cells to have a sickle shape.

Hope this helps.

Answer:

a,

This is due to differences in the oxidation states of  Fe. atoms present in the two protein pigments.

Generally,the Fe2+ atom in the heme groups is responsible for the  oxygen carrying capacities of haemoglobin in RBC.However,in +2 state that Fe carry oxygen through cooperative binding in the blood.When methemoglobin is formed the Fe exits in +3,and therefore can not bind oxygen. Methemoglobin is a mettaloprotein of Fe3+ states. It results from the oxidation of  Fe atoms in Hb from Fe2+ to Fe3+ states,during exposure to certain medications,and some nitrate,certain  dyes and some compounds.

This can be conducted with CO-oximeter.This is a device used to measure the blood  percentage oxygen saturation levels.It conduct this by measuring the oxygen carrying capacity of haemoglobin in a blood sample. Since oxygen saturation levels of a blood sample depends on the amount of Hb,therefore by passing some wavelengths of light across the blood samples,The more the wavelength of lights absorbed by the blood samples, the more the percentage saturation of the blood sample with oxygen,and therefore the oxygen carrying capacity of the blood,thus more Hb.

Hence, if the blood sample absorbs  wavelength of light in the range of (500 nm and 631 nm.) it shows that little Hb is present in the blood samples,and the blood should contain Methemoglobin of Fe3+ and not Hb.

Methemoglobinemia is  a condition in which methmoglobin concentration of the blood rises,due to the higher percentage of Hb,with F3+( of poor oxygen carrying capacity or uncoupling ) compare to normal F2+ for carrying oxygen. Since these can not transport oxygen,Cyanosis results as the baby turns blue,with lack of oxygen.

Since the rise in the concentration of methmoglobin is the major cause of this condition,reduction of it concentration is the primary step.Therefore, the Methylene blue role is to reduce the amount  of  methmoglobin by enzyme NADPH-methemoglobin reductase.This occurs with 10-60mints after administration.Thus the concentration of these pigment is reduced,likewise its toxic levels.

Ascorbate can also be used,however a lot of doses is required for this to have a significant effects,and compare to Methylene blue it is less effective.,

Explanation

Answer:

By using specific primers for PCR amplification and DNA sequencing

Explanation:

In molecular biology, different techniques are used to clone the full sequence of desired genes. In general, gene cloning is based on the assembly of genetically engineered recombinant DNA cloning vectors into host organisms. The cloning procedure generally consists of isolating target DNA sequences to be cloned, ligation into a corresponding vector, transfection and screening of clones. The recombinant DNA is first amplified by PCR. Subsequently, DNA is sequenced and finally assembled by bioinformatic methods in order to characterize the full sequence of the gene.

1) Sperm cell is adapted to its function by carrying genetic information to an egg.

2) It has a stream lined body that allows it to move quickly.

3) They also contain large number of mitochondria in the mid region, so it is able to produce a lot of energy in order to operate tail

Answer:

There are  two organelles that produce proteins

Explanation:

Answer:

ribosomes

Explanation:

D

heterozygous means it is not the same gene expression

so both are

Pp'Pp

the second one

The genotypes that he could have used to represent the cross between two heterozygous individuals is: Pp ´ Pp

Therefore, the genotypes that he could have used to represent the cross between two heterozygous individuals is: Pp ´ Pp

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Answer:

THE SELF FULLFILLING PROPHECY

Explanation:

BRAINLIEST PLS

Answer:

fungi that are associated with bread mold

Explanation:

Bread mold fungi are fungi, they grow where there is moisture and organic food substance.

Bread mould are formed from mould spores that grows usually on bread surface especially when exposed

they feed on the organic substance found in the bread such as carbohydrate. Bread mould grow within 5-7days.

Answer:

b. fungi that are associated with bread mold

Explanation:

Answer:

The mother's cardiovascular system and the placenta.

Explanation:

Babies receive their oxygen and get rid of the carbon dioxide with the help of both the cardiovascular system of the mother and the placenta. The gases dissolve through the placenta and then gets exchanged in the cardiovascular system of the mother. So the answer is the mother's cardiovascular system and the placenta.

I hope this answer helps.

Answer: I think aneuploidy id wait for someone else to confirm this

Explanation:

All of the following would be visible on a karyotype except is aneuploidy

The normal karyotype of the species is described as 46, may XX or XY, in which the first number of chromosomes is followed by a comma indicating the  chromosomes. Thus, 46, XX corresponds to the karyotype of a woman; and 46, XY represents a male karyotype.

Aneuploidy is the presence of an abnormal number of chromosomes in a cell so this is the exception.

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Answer:

I'm pretty sure it is: move into the cell causing it to expand

Explanation:

Answer:

Since this is heterozygote dominant state(Bb), and B allele is dominant over the b allele brown(b) ,hence the fur color must belong to the dominant allele which is dark brown.

Explanation:

Generally a dominant gene is the type that manifest itself from generations to generation irrespective of the presence of the recessive gene.

If there are two allele for fur colors (dark and light brown)

Therefore B(Dark brown) is a dominant allele,assuming with genotype BB.

while the recessive light brown (bb)

Therefore if the F1 generation is crossed the offspring are

Bb,Bb,Bb,Bb. These are hetero zygote dominants

Therefore the phenotype is dark brown.

In Complete dominance, the dominant allele masks the expression of the recessive allele. Heter0zyg0us individuals, carrying both alleles, only express the dominant phenotype. The fur color of a Bb mouse is dark brown.

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Available data:

The hint to answer this question is that The B allele causes dark brown fur and is completely dominant over the b allele. This sentence suggest that complete dominance is going on.

Complete dominance

The mouse with the heter0zyg0us genotype Bb is carrying both alleles. However, the dominant allele B hides the expression of the recessive allele b.

This mouse expresses the dominant phenotyope dark brown.

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Answer:

C.

Explanation:

For mRNA strands, there are four letters used in their code. A (adenine), U (Uracil), G (guanine), and C (cytosine.)

For RNA, it is the same, but the Uracil is replaced with Thymine (T).

A always pairs with U.

G always pairs with C.

YOUR QUESTION:

The scientist's strand code is has to convert the Thymine to Uracil since it is RNA instead of mRNA.

Hopefully this somewhat helped :)