Question 22 of 34
How does a fetus receive nutrients before birth?
A. Directly from the mother's digestive system
OB. Through the umbilical cord
OC. The fetus doesn't need any nutrients until birth.
OD. By drinking amniotic fluid

Answers

Answer 1

Answer:0B

Explanation:it receives it through the umbilical cord


Related Questions

PLEASE HELP IM STUCK

Answers

Answer:

C. The Benthic Zone

Explanation:

It is home to lots of species of animals in the zone  

Hope This Helped

Question 5 of 10
Human epithelium contains a layer of cube-shaped cells. If the length, height,
and width of such a cell is 1 micrometer (um), what is the cell's ratio of
surface area to volume?

Answers

Answer:

The ratio is 6 to 1

Explanation:

1. a 6 sided cube of 1 mM has a volume of L * W* H (1*1*1=1) 1 mM.

2. a 6 sided cube has a surface area of one face surface area times 6 or (L * W) * 6 = 1mM * 1 mM * 6 = 6

so the ratio of surface to volume is 6/1.

Davy made a model of the water cycle by adding some water inside a plastic bag, sealing the bag, and placing it in a sunny area. he noticed that the level of the water went down, and then some droplets appeared on the sides of the bag. which part of the water cycle caused water droplets to form on the side of the plastic bag? condensation evaporation precipitation runoff

Answers

Davy made a model of the water cycle by adding some water inside a plastic bag, sealing the bag, and placing it in a sunny area. He noticed that the level of the water went down, and then some droplets appeared on the sides of the bag. which part of the water cycle caused water droplets to form on the side of the plastic bag?  

(a) condensation (b) evaporation (c) precipitation runoff

The part of the water cycle that caused water droplets to form on the side of the plastic bag would be condensation.

What is condensation?

It is a process whereby water vapor in the atmosphere condenses or turns back into liquid.

Condensation is as opposed to evaporation. The latter is a process whereby liquid water turns into vapor water. In other words, evaporation and condensation are words and opposites.

Both processes play a major role in the water cycle of the ecosystem.

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Use the following information to calculate the correct frequencies: In a population of
Pennsylvanians, only 18% of individuals express the recessive trait of Syndactyly or webbed finger
(formulas: p+q=1 and p²+2pq+q2²=1)
a. What percentage of the population are not Webbed?

Answers

If we have the recessive genotypic frequency, we can calculate the phenotypic frequencies in a population in Hardy-Weinberg equilibrium. The percentage is 82%.

What si the Hardy-Weinberg equilibrium theory?

The Hardy-Weinberg equilibrium theory states that allelic and genotypic frequencies remain the same through generations in a population that is in equilibrium.  

The allelic frequencies in a locus are represented as p and q. Assuming a diallelic gene,

Allelic frequencies

The frequency of the dominant allele f(X) is pThe frequency of the recessive allele f(x) is q

Genotypic frequencies after one generation are

H0m0zyg0us dominant genotypic frequency,

2pqHeter0zyg0us genotypic frequency,

H0m0zyg0us recessive genotypic frequency.

The addition of the allelic frequencies equals 1

p + q = 1.

The sum of genotypic frequencies equals 1

p² + 2pq + q² = 1

Available data:

18% of individuals express the recessive trait of Syndactyly

Let us say that the dominant allele is A and the recessive allele is a.

The dominant allele A codes for normal finger.The recessive allele a codes for webbed finger.

Assuming this gene expresses complete dominance,

H0m0zyg0us dominant and heter0zyg0us -AA and Aa- individuals have normal finger.

Their frequency in the population is p² + 2pq.

h0m0zyg0us recessive -aa- individuals have webbed finger.

Their frequency in the population is .

Individuals that express Syndactyly have webbed finger and their genotype is h0m0zyg0us recessive, aa. Their frequency in the population is .

q² = 18% = 0.18

We can get the frequency of individuals with normal fingers by clearing the following equation,

p² + 2pq + q² = 1

p² + 2pq + 0.18 = 1

p² + 2pq = 1 - 0.18

p² + 2pq = 0.82

The frequency of individuals with normal fingers is p² + 2pq = 0.82 = 82%.

The percentage of the population are not Webbed is 82%.

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In a certain population of rabbits, the allele for brown fur
is dominant over the allele for white fur. If 10 out of 100
rabbits have white fur, what is the allele frequency for
the recessive allele?
The Hardy-Weinberg equation is:
[homozygous dominant]2 + 2[heterozygous] +
[homozygous recessive]- = 1
• A. 0.32
• B. 0.10
• C. 0.95
• D. 0.90
SUBMIT

Answers

The allele frequency for the recessive allele is B. 0.10. Thus, option "B" is correct.

How, explain your answer?

The Hardy-Weinburg equation is p + q = 1, or p^2 + 2pq + q^2 = 1, where p is dominant and q is recessive.

If 10 out of 100 rabbits have white fur, 10% of the rabbits have white fur. Therefore, 90% of the rabbits have brown fur, which can be substituted into the first equation to becoming 0.9 + 0.1 = 1. Now that we know what p and q equal, we can solve the rest of the equation.

0.9^2 = 0.81

0.9 * 0.1 * 2 = 0.18

0.1^2 = 0.01

Therefore, the allele frequency of the recessive allele is 0.1.

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In a population of plants used to large amounts of rain, one plant is specially adapted to survive on small amounts of water. What would happen if there was a season with little rainfall?
A. All of the population would die off and make room for a new species of plants.
B. The population would be unaffected and would survive and reproduce normally.
C. The adapted plant would survive and reproduce, and others would die causing evolution.​

Answers

The adapted plant would survive and reproduce, and others would die causing evolution.​ thus option C is correct.

What is evolution?

Even though it has resulted in their distinctions, evolution is a biological phenomenon that affects all living things. The fossil record, comparative studies of structure and function, embryological development, and studies of DNA and RNA have all provided evidence to support the hypothesis of evolution.

Plant adapted themselves according to environmental conditions. In water scarcity conditions, plant changes their leaf structures in the thorns to reduce transpiration or stem become storage organ for water.

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Egg of a bird represent an organ​

Answers

It is a false statement that the egg of a bird represent an organ​.

What is an organ?

An organ is composed of many tissues that work together for the same purpose. Tissues in turn are composed of cells.

The egg of a bed is only composed of cells that divide rapidly hence the egg of a bird is not an example of an organ and the statement is false.

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what is end of a year journal at school

Answers

Answer:

Chodzi ci o oceny w dzienniku?

Explanation:

Answer:

An End of Year Journal a journal entry in the accounting system to record the differences between the business’s financial reporting system and the accountants’ end of year accounts that are used to prepare the Financial Statements and Tax Returns. The thing is, they need to match so that the reports are accurate.

Explanation:

How do land animals remove gas liquid and solid waste materials?

Answers

Answer:

The corect phase sequence shown

Gas, Liguid, Solid

Lqud, Gas, Solid

Sold, Liguid, Gas

Gas, Solid, Liquid

above i

Why are plants called producers

Answers

Answer:

they make there own good which creates energy for them to survive, grow and reproduce

Which congruence theorem can be used to prove △BDA ≅ △BDC?

Triangles B D A and B D C share side B D. Sides B C and B A are congruent. Sides A D and D C are congruent.

HL
SSA
AAS
SSS

Answers

The answer would be SSS similar sides “side side side”

The congruence theorem that can be used to prove △BDA ≅ △BDC is SSS (Side Side Side); option D.

What is congruency in triangles?

Congruency of triangles refers to the similarity that exists between triangles such that the triangles have equal equal angles and equal length of sides.

The given Triangles B D A and B D C share side B D.

Sides B C and B A are congruent.

Sides A D and D C are congruent.

Therefore, the congruence theorem that can be used to prove △BDA ≅ △BDC is SSS (Side Side Side).

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A carbon budget is the amount of carbon we can release into the atmosphere before global temperatures rise above two degrees Celsius. Our current rate of carbon
released from burning fossil fuels is 37 billion tonnes per year. If we continue to burn fossil fuels at this same rate, how many years could it take to reach the limit of the
carbon budget shown in the graph?
8 years
7.4 years
6.8 years
10 years

Answers

I believe it’s 10 years I may be wrong

Answer:

its either 8 or 7.4

Explanation:

both 10 and 6.8 were wrong

estions
1. What is selective breeding?
2. Name two characteristics cattle
have been selectively bred for.
3. How can you obtain wheat with
the characteristics you want?
4. The table on the right shows the
characteristics of two chickens,
Kendo and Bibby. If they have
offspring which characteristics
do you think the farmer would
want from each chicken?

Answers

Selective breeding is a technique to obtain offspring with desired traits, characteristics of cattle include meat and height, whereas wheat is obtained by crossing high yield plants.

What is Selective breeding?

Selective breeding is a human technique used to obtain descendence (either plants or animals) from a given genetic cross.

This technique (selective breeding) is used in agriculture to obtain wheat with higher grain yields.

Two characteristics of cattle that have been human-driven selected include meat and average size (height).

It is possible to obtain wheat with desired features by crossing plants having desired genes (it is an autogamous plant).

The characteristics of the chickens (Kendo and Bibby) are not found here, but it is possible to select desired phenotypes by crossing them and selecting offspring.

In conclusion, selective breeding can be used to obtain offspring from a given genetic cross expressing desired traits.

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Name the cavity between the nose and mouth.
A. pharynx
B. larynx
C. trachea
D. Esophagus

Answers

The cavity which separate or in between the nose and the mouth is the nasal cavity.

The nose and the mouth meet at a junction called the pharnx; option A

What is nasal cavity?

The nasal cavity refers to a large, air-filled space above and behind the nose in the middle of the face. It is the cavity which divides the nose and mouth.

However, the nasal septum divides the cavity into two cavities .

The larynx is the passageway for air between the pharynx above and the trachea below.

The pharynx carries air, food and fluid down from the nose and mouth.

So therefore, the cavity which separate or in between the nose and the mouth is the nasal cavity.

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which mammal didnt become extinct during the Cenoozoic era

Answers

Answer:

rodents and small horses

Normally, humans think of wildfires as
a negative thing. In which biome can
fire suppression have a considerable
impact?
A. desert
B. tropical rainforest
C. tundra
D. grassland

Answers

Answer:

D. grassland

Explanation:

Wildfires in grasslands can allow nutrients to return to the soil and allow plants to regrow.

Drinking alcohol during pregnancy negatively impacts development of the fetus because

Answers

Drinking alcohol during pregnancy negatively impacts the fetus because it increases the risk of having a miscarriage and premature birth (& baby having a low birthweight)
Drinking during pregnancy can also cause foetal alcohol spectrum disorder (FASD) after birth

(Hope this helped?)

How does sea level change when Earth's global temperature is lower?
A. Glaciers grow bigger, causing sea level to fall.
B. Glaciers grow smaller, causing sea level to fall.
C. Glaciers grow smaller, causing sea level to rise.
D. Glaciers grow bigger, causing sea level to rise.

Answers

Glaciers grow smaller, causing sea level to rise when Earth's global temperature is lower. Thus, the correct option is C.

Sea level lowers during cold climate periods, known as glacial epochs or ice ages, due to a shift in the global hydrologic cycle, in which water evaporates from the oceans and is stored on the continents as massive ice sheets, extended ice caps, ice fields, and mountain glaciers. At the last glacial maximum, some 20,000 years ago, global sea level was about 125 meters lower than it is today.

What is interglacial epochs?

Because the melting North American, Eurasian, South American, Greenland, and Antarctic ice sheets returned their stored water to the world's oceans as the climate warmed, sea level rose. Sea level is at its highest during the warmest eras, known as interglacial epochs.

We are currently living in the most recent interglacial, which began around 10,000 years ago and is referred to by geologists as the Holocene Epoch. Sea levels were about 3 to 20 meters higher than they are now during several previous interglacials.

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What is the difference between a food chain and a food web?
A. A food web shows multiple food chains that are interconnected.
B. A food chain shows multiple food webs that are interconnected.
C. A food chain is used when there are no decomposers present, a food web includes them and shows the recycling of nutrients.
D. A food web is only used when organisms that have multiple ways of getting energy are involved, such as Omnivores.

Answers

Answer:

A

Explanation:

A food web shows multiple food chains that are interconnected.

1. Those who were successful in Round One did not survive equally well when others were
competing for food at the same dish during round two. Which beak was not successful and why?

Answers

Large beak will not be successful if the food is small in size because they can't eat that food.

Which beak was not successful and why?

Large beak was not successful if there is small sized food is present on the dish while on the other hand, if the dish has big sized food then the small beak can't survive the second round because they are unable to eat that food.

So we can conclude that big beak will not be successful if the food is small in size because they can't eat that food.

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At which of these locations is a dietician least likely to work?
school
theater
hospital
nursing home

Answers

Theater would be the answer

Answer:

B. Theater

Explanation:

Think about it. Would a dietician really work at an amusement park? That sounds ridiculous! If a dietician wouldn’t work at an amusement park, he or she would not work at a theater.

You’re welcome.

This plants seeds spread so that new plants will grow, which way will the seeds most likely spread.

Answers

Answer:
The most common methods of nature spreading seeds are wind, water, animals, explosion and fire.

Some plants spread their seeds in the wind (flowers) while some spread seeds thru ingestion by animals and defecating the seeds in their droppings (pine trees).

Which led most directly to the decline of the latin language?
oa. the death of joan of arc
ob. fear of witchcraft
oc. the great schism
o d. interest in poetry

Answers

The great schism was what led to the decline of the latin language and is denoted as option C.

What is Great schism?

This was characterized by Christianity being divided into two divisions, Roman Catholic and Eastern Orthodox.

This led to the latin language being replaced with others such as Greek etc in this scenario.

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Why isa DNA replication regarded as semi conservative?

Answers

Answer:

each helix that is created contains one strand from the helix from which it was copied.

Explanation:

An experiment that has only one variable changed

Answers

a controlled experiment

The air that enters and leaves the lungs during one quiet, resting respiratory cycle is called the

B functional residual capacity.
D tidal volume.

Answers

I believe Tidal volume is the correct answer

which of the following is an early sign or symptom of Gonorrhoea?

A.) Brain damage

B.) hard red ulcers around genitals

C.) burning sensation when urinating

D.) blisters around genitals


PLEASE CHOOSE THE CORRECT ANSWER, TY.

Answers

C) burning sensation when urinating

What is spermatogenesis and sporophyte?

Answers

Answer:

Explanation:

1. Production of sperm by meiosis

2. diploid generation which alternates with haploid (in plants)

the form of energy that refers to the motion of particles______ A. thermal energy B. heat C. temperature​

Answers

Answer:

A. I think so it's correct

1. Why is Maya Lim excited about classroom bioprinters? 2. What parts of Maya Lim's job as a chemical engineer sound interesting to you?

Answers

Classroom bioprinters can be used to print literally any biological object, whereas a chemical engineer is responsible to use chemistry to develop processes and devices.

What is a bioprinter?

A bioprinter is a device that combines cells and transcriptional growth factors, in order to generate structures similar to tissues and organs.

Moreover, a chemical engineer is aimed at exploring the chemical properties of matter to develop processes and devices.

In conclusion, classroom bioprinters can be used to print literally any biological object, whereas a chemical engineer is responsible to use chemistry to develop processes and devices.

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