what is the function of placentawhat is the function of Plasma centre in a woman of two month pregnant ​

Answers

Answer 1

Answer: The placenta is an organ that develops in your uterus during pregnancy. This structure provides oxygen and nutrients to your growing baby and removes waste products from your baby's blood. The placenta attaches to the wall of your uterus, and your baby's umbilical cord arises from it.

Explanation:


Related Questions

illustrate the cellular respiration pathway (using diagrams)​

Answers

Answer: this is your explanation

causes of over fishing

Answers

Answer: The causes of overfishing can change the size of fish remaining. When too many fish are taken out of the ocean or lakes it creates an imbalance that can erode the food web and lead to a loss of other important marine life, including vulnerable species; like sea turtles corals and seaweed.

Hope this helps :)

What are the causes of variations ? please explain thi also​

Answers

Answer:

variation can be caused by mutation and other things

Explanation:

A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light or cigerette smoke

➜ Following are the causes of variations:

Dual percentage: Offsprings inherit some features from mother and some from father. Hence no offspring will exactly resemble to either of the parent or each other.Mutation in gene or chromosomal pattern also causes variations.

ill give brainly please answer asap

Answers

It’s 5cm because you convert 50mm to cm which is 5cm and 5 times 1 is 5

PLEASE HURRY NUMBER 8

Answers

Answer:

C. a species that was unable to adapt and died out



HELLLPPP PLZZZZ
Worker hours to produce one unit of natural gas Worker hours to produce one unit of oil
Brazil
4
8
Argentina
2
10
Mexico
3
8
United States
1
6
According to the chart, which country has the comparative advantage in oil production? (5 points)

Group of answer choices

Mexico

Brazil

United States

Argentina

Answers

Answer:

Correct Answer is Brazil

Explanation:

Took the test and got full marks

is cali good for lavender plants and why ?

Answers

yeah it is because it helps it live longer then planned

Match each example with what type of adaptation it is.


Answers

Answer; 1 is chemical, 2 is behavioral, and 3 is structural

Your normal heartbeat before exercise is called your ____________________.




heart rate


muscle


pre-heart rate


tissue

Answers

Answer:

Heart rate i think

Explanation:

Answer:

it should be resting heart rate, but i dont see that as an answer...

The process of water freezing water to thaw and break apart rock is called____.

Answers

Answer:

mechanical weathering

Explanation:

What process occurs immediately after fertilization?
A. Meiosis
B. Differentiation
C. Cell division

Answers

Answer:

C

Explanation:

Answer:

C. Cell division

Explanation:

Fertilization results in the creation of a zygote.

How did New Zealand's early ecology affect which traits were selected for/against in the kakapo's ancestors?

Answers

Answer:

Hairy skin which helps kakapo's ancestors to live in harsh climate of New Zealand.

Explanation:

New Zealand's early ecology greatly affected the population of kakapo's ancestors because the environmental conditions for kakapo's ancestors are favourable and there is no invasive species which reduces the population of kakapo's ancestors near to extinction. The traits that were selected for the kakapo's ancestors provides ability to live and survive in the temperate and subtropical climates of New Zealand. The flightless trait in this bird is also responsible for its extinction because this bird can't run away from their predators.

Of the chromosomes in your cells, how many are sex chromosomes?
1
2
3
4​

Answers

two, X and Y

XX is typically female, XY is typically male.

Theirs 2 sex chromosomes

having two of the same genes for the trait (sometimes called purebred).

Answers

Answer:

if this is a true or false, then it is true

Explanation:

Why are trees generally measured at 4 feet, six inches feet from the ground?

Answers

Answer:

Trees are generally measured at 4 feet, six inches feet from the ground because trees are generally a bit wider at the bottom where the roots begin to spread, so choosing a point at which all trees are measured is one way to keep documentation consistent. 3.

Explanation:

Answer:

Because trees are generally a bit wider at the bottom, where the roots spread

Explanation:

The green pigment in the chloroplast that captures the sun's energy is

Answers

Answer:

Chlorophyll............

Use the Weather probe to measure the land-air and ocean-air temperatures. What are these temperatures at this time?

Answers

Answer:

Use the Weather probeto measure the land-air and ocean-air temperatures. What are these temperatures at this time? 29.1 degrees and 22.2 degrees, respectively. C.

Explanation:

By using the Weather probe to measure the land-air and ocean-air temperatures. It is found that the temperature of land air is found be 29.1°C and the temperature of ocean air is found to be 22.2°C.

What is a weather probe?

A weather probe may be defined as an observation post where weather conditions and meteorological data are considerably observed and recorded under controlled conditions. While weather governs the state of the air and atmosphere at a particular time and place.

According to the context of this question, a weather probe determines a facility, either on land or sea, with instruments and equipment for measuring atmospheric conditions to provide information for weather forecasts and to study the weather and climate.

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PLEASE HELP ME WITH THE FIRST QUESTION AND DONT PUT ANY LINKS!!!

Answers

Answer succession is C
Hope this helps !

how will photosynthesis affect oxygen levels?
(also if anyone could help me with the rest of these answers, that would be great <3)

Answers

1. Photosynthesis increases oxygen levels, as oxygen is one of the remainders from photosynthesis. Remember, for photosynthesis to happen plants taken carbon dioxide and release oxygen.
2. Cellular respiration will decrease oxygen levels. For cellular respiration to occur animals take in oxygen and release carbon dioxide.
3. If there is a higher light intensity then there will be higher levels of oxygen production. Plants need energy in the form of sunlight in order to photosynthesize, and the more photosynthesis that is done the more oxygen that is produced.

The process of photosynthesis positively affects the level of oxygen in the ecosystem. This is because oxygen is the byproduct of the photosynthesis mechanism along with the main product known as Glucose.

What is Photosynthesis?

Photosynthesis may be defined as a process through which green plants and some photosynthetic algae synthesize their own food in the form of glucose with the help of carbon dioxide and water in the presence of sunlight.

The complete reaction of photosynthesis si as follows:

[tex]6CO_2+12H_2O[/tex] → [tex]C_6H_1_2O_6+6O_2+6H_2O.[/tex]

With the help of this reaction, this is determined that if the rate of photosynthesis increases, the level of oxygen is positively affected which means it is also increasing. It is opposite to the process of cellular respiration which involves oxygen as a reactant.

Therefore, the process of photosynthesis positively affects the level of oxygen in the ecosystem.

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Explain why routine physical exams can be considered “preventive medicine.”

Answers

Answer:

Explanation:

The purpose of the routine preventive exams is to identify potential health problems in early states when they may be easier to treat.

PLEASE HELP!!
What is noise that is made up of many different frequencies called?
white noise
colored noise

Answers

Answer:

Explanation:True white noise is a mixture of all the frequencies humans can hear, from about 20 Hz to 20,000 Hz, all going at equal strength at the same time.

Answer:

white noise

Explanation:

How do biotic and abiotic factors contribute to the health of an ecosystem?

Answers

Answer:

A

Explanation:

Biotic factors such as the presence of autotrophs or self-nourishing organisms such as plants, and the diversity of consumers also affect an entire ecosystem. Abiotic factors affect the ability of organisms to survive and reproduce. Abiotic limiting factors restrict the growth of populations.

TRUE OR FALSE: DNA sequences are exactly the same for organisms that are related to each other. (If false please explain).

Answers

Answer: False

Explanation:

DNA sequences can be similar for organisms that are related to each other but through various steps of meiosis like crossing over and law of independent assortment we can get genetic variations that lead to slight differences. We can also get differences in DNA sequences due to mutations.

0330 (Tuesday)- It has been said that living
organisms are nothing more than sacks of
chemicals and chemical reactions? Do you agree
with this? Why or why not?

Answers

i disagree because they are living things

In mice, black color (B) is dominant to white (b). At a different locus, a dominant allele (A) produces a band of yellow just below the tip of each hair in mice with black fur. This gives a frosted appearance know as agouti. Expression of the recessive allele (a) results in a solid coat color. If mice that are heterozygous at both loci are crossed, ___ out of 16 will be black in color.

Answers

Answer:

3

Explanation:

Heterozygous mice at both loci would be BbAa genotype.

B (black) is dominant over b (white) but the presence of A results in agouti.

Crossing two heterozygous:

     BbAa    x    BbAa

Progeny

9 B_A_ - Agouti

3 bbA_ - agouti

3 B_aa - Black

1 bbaa - white

Hence, 3 out of 16 progeny will be black in color.

See the attached image for the Punnet's square analysis of the cross.

DNA is not useful during
A) replication
B)transcription
C) proteins synthesis
D) mitosis

Answers

Answer:

D. mitosis

Explanation:

I wade out the options dna is useful during protein synthesis because the dna controls the synthesis of proteins in transcription where mRNA is built on a DNA template and DNA replicate it self

In another one of Mendelssohn Experiments, he crossed the off spring. Two pea plants with purple flowers (Pp) were crossed.

Answers

Answer:

There will be a dominant and recessive trait that would be formed.

Explanation:

3 purple flowers would be dominant while 1 will be recessive.

Human Immunodeficiency Virus (HIV) is a virus that infects (and destroys) Helper T Cells. As a result, people who are HIV+ generally have a low number of these T Cells. How would the dramatic decrease in Helper T Cells caused by HIV affect a person’s immune response? Be specific using details from what you learned about the immune response.

Answers

Answer:

HIV invades various immune cells (e.g., CD4+ T cells and monocytes) resulting in a decline in CD4+ T cell numbers below the critical level, and loss of cell-mediated immunity − therefore, the body becomes progressively more susceptible to opportunistic infections and cancer.

HIV infects and deletes CD4+ T cells that normally coordinate the adaptive T- and B-cell response to defend against intracellular pathogens. The immune defect is immediate and profound: At the time of acute infection with an AIDS virus, typically more than half of the gut-associated CD4+ T cells are depleted, leaving a damaged immune system to contend with a life-long infection.

Meiosis results in...

A) 4 diploid daughter cells
B) 2 haploid daughter cells
C) 2 diploid daughter cells
D) 4 haploid daughter cells

Answers

Answer:

The answer is D) 4 haploid daughter cells

Explanation:

Hope this helped Mark BRAINLIEST!!!

How can electromagnetic waves be used to fight a forest fire?

Gamma ray images can show hot spots as radioactive areas.
Ultraviolet images can show hot spots as fluorescent areas.
X-ray images can show hot spots as white areas.
Infrared images can show hot spots as red areas.

Answers

Answer:  the answer to this is D because these rays can show you where the fire is located even if it is enveloped in a cloud of gray and black smoke that prevents you from seeing it.

Explanation:

The electromagnetic waves be used to fight a forest fire should be option D. Infrared images can show hot spots as red areas.

Reason of why electromagnetic waves be used to fight?

The gamma-ray images should represent hot spots just like the radioactive areas.

The ultraviolet images represent the hot spots just like the fluorescent areas.

Also, these rays should represent where the fire is located also the black smoke prevent you.

hence, The electromagnetic waves be used to fight a forest fire should be option D. Infrared images can show hot spots as red areas.

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