The exchange of nutrients and gases between a developing
human embryo and its mother occurs between circulatory
fluids located within the
1) umbilical cord
3) manmary glands
2) placenta
4) yolk

Answers

Answer 1
I think it’s the umbilical cord

Related Questions

What material was used to make shelters in the Stone Age?
Mammmoth bones
Stone
Animal hide

Answers

Answer:

Stone

Explanation:

These houses are more like our houses than any others in the Stone Age. They had foundations and they were built of wood and wattle and daub (a mixture of manure, clay, mud and hay stuck to sticks). They were sometimes made of stones. The roofs were made of straw.

What are the five human impacts on the environment? (I would prefer them in point form, but i understand if you cant do that

Answers

Answer:

1. pollution

2.climate change

3. misuse of natural resources

4. erosion

5.loss of biodiversity

Explanation:

Answer:

overpopulation, pollution, burning fossil fuels, and deforestation.

Explanation:

Which change is an environmental effect of building dams?


A.) weed growth upstream


B.) increased water temperature upstream


C.) sediment builds up downstream


D.) increased fertility downstream

Answers

i believe C because of downstreams but i’m not sure

Which population is most likely to survive in the event of a new disease?
A.
a very diverse population
B.
a somewhat diverse population
C.
a population with little diversity
D.
a population with no variation

Answers

Answer:

A

Explanation:

I don't know if this is the answer but I think it's A because more diversity means more opinions and more opinions means more solutions to the problem at hand

Clark case summary for gizmo

Answers

Can u add a picture?

(8)
Porifera
Question 1
Multiple choice. Ring the letter of the response that is most correct.
1. Sponges are typically
A. mobile
B. parasitic
C. anaerobic
D. sessile

Answers

Answer:

D - Sessile

Explataion:

No matter where sponges live, they are mainly sessile organisms. Because most adult sponges are sessile, they can't travel in search of food

Answer:

D

Explanation:

multicelled immobile animal

Which best describes the white light in the visible light spectrum?
А
a mixture of every wavelength and color of visible light
B
a mixture of only seven colors and wavelengths of visible light
С
a mixture of only red, blue, and yellow wavelengths of visible light
D
a mixture of colors that cannot be broken up in the spectrum of visible light

Answers

Answer:

B

No explanation required

What is the other name for the constellation seen here ?

Answers

Answer:

Another name of constellation is

group of star.

Pls help asap


Problem
A car sells for \$5000$5000dollar sign, 5000 and loses \dfrac{1}{10}
10
1

start fraction, 1, divided by, 10, end fraction of its value each year.
Write a function that gives the car's value, V(t)V(t)V, left parenthesis, t, right parenthesis, ttt years after it is sold.

Answers

Answer: V(t)=5000(9/10)^t

Explanation:

If the car loses 1/10 of its value each year, that means 9/10 of the value remains each year.

So each year, the car's value is multiplied by a factor of 9/10 or 0.9

If we start with the initial value, $5000 and keep multiplying by 9/10 his function gives us the car's value t years from now:

A. Bone

B. Organ systems

C. Organs

D. Specialized cells

Answers

Hydra has reached the tissue grade of organization, but it lacks organs. It consists of a tube about 5 mm long formed by two epithelial layers (endoderm and ectoderm). It has a head consisting of a mouth surrounded by a ring of tentacles at one end and an adherent disk, the foot, at the other end.

PLEASE HELP !! ILL GIVE 40 POINTS ; PLUS BRAINLIEST !! DONT SKIP ANSWER.

Answers

Answer:

The answer is D

Explanation:

which of the following should a teenager and not do to maintain reproductive health​

Answers

There is no pic or anything I don’t see anything
There’s no pic buh here’s a few answers
Drinking access alcohol, abusing drugs,exposure to access gamma rays and others

Mark as brainleast plzzz

PLEASE HELP 30 POINTS IF I MARK YOU BRAINLIEST!!!!​

Answers

4th one

they travel to go where the season's right, which'll give them the best resources

Th answer is the fourth one, migration makes finding necessary resources more likely.

2. What is a characteristic of animals that use chemicals for defense?
A. They rely on Mullerian mimicry for defense.
B. They rarely use camouflage as a defense.
C. They usually use their speed for defense.
D. They rely on Batesian mimicry for defense.

Answers

They rely on Mullerian mimicry for defense.

The insect mimic the other insect which is toxic to the predator.By this method they increase there chance of survival.

What is mimicry?It is the close resemblance, in color, form, or behavior, of one organism to another or to some object in its environment, as of some insects to the leaves or twigs of plants.It serves to disguise an organism from a predator or prey.

Hence, A option is correct.

To know more about mimicry here

https://brainly.com/question/13046649

#SPJ3

PlS HELP 30 POINTS FOR BRAINLIEST!!!!!!!!!!!!!!!!!!​

Answers

Answer:

It's a little difficult to see the difference between the finch 1 and finch 2 population lines, but their trends should match those of the food. This answer is assuming the finch 1 population aligns with the seeds line and the finch two population lines up with the fruit line: The finch 1 population has a beak adapted to eating seeds and the finch 2 population has a beak better adapted to eating fruit

Explanation:

Since we are given data for both the food source and the finch population, the answer will most likely reflect that. Therefore eliminating choices A (disease) and C (feathers). Again, this answer is assuming the finch 1 population aligns with the seeds line and the finch two population lines up with the fruit line. The lines for the finch population will match with the availability of food, so less seeds mean less finch 1 and when the amount of seeds rise up you can see the population of finch 1 also rises.

Based on this information, what is the most likely relationship between common garter snakes and rough-skinned newts?

Answers

Explanation:

In evolutionary theory, the relationship between the rough-skinned newt and the common garter snake is considered an example of co-evolution. The mutations in the snake's genes that conferred resistance to the toxin have resulted in a selective pressure that favors newts which produce more potent levels of toxin.

what does NADP+ want to carry outside of the thylakoids?

Answers

In the light-dependent reactions, which take place at the thylakoid membrane, chlorophyll absorbs energy from sunlight and then converts it into chemical energy with the use of water. ... The lower energy form, NADP+, picks up a high energy electron and a proton and is converted to NADPH.

Psychology:

Edward B Titchener was from which
country?
A. Germany
B. America
C. Britain

Answers

It’s b. America because born January 11, 1867, Chichester, Sussex, England—died August 3, 1927, Ithaca, New York, U.S.), English-born psychologist and a major figure in the establishment of experimental psychology in the United States.
America because it is

How is water used in the environmet

Answers

Answer:Water for the ecosystem is at the heart of a wide variety of programs and results across the province. Water is carried by healthy rivers to homes, farms, schools, and industries. They nourish whole habitats and provide critical shelter for native plants and animals along the way.

Explanation:

A gene pool consists of *
A) all the genes that mutate in a single generation
O B) all the heritable genes for traits in a population
C) all the gametes produced by a population
D) the mutated alleles for a particular trait

Answers

I thinks it’s C not 100% sure why let me know if I am correct


How do water's relative densities as a solid and a liquid differ from that of most other substances?

Answers

Ice is less dense than water which isn’t the case with most substances.

PLEASE HELP !! ILL GIVE 40 POINTS ; PLUS BRAINLIEST !! DONT SKIP ANSWER.

Answers

C. Again. For the third time.

what is the pollinating agent of Ornithophilous​

Answers

Answer:

Birds? Nectarivorous birds

Explanation:

Hummingbirds rely on nectar for energy, and ornithophilous flowers need hummingbirds' assistance with pollination in order to reproduce. While the birds are feeding, pollen sticks to their beaks, which will rub off on the next flower they visit, pollinating it.

PLEASE HELPPP question and choices in the picture below

Answers

B is the correct answer

Answer:

B

Explanation:

2.1 Define the concept study plan ​

Answers

Answer:

A study plan is a summary of the subject requirements of your course and indicates when planned subjects should be studied. It indicates the subjects you have completed; are currently enrolled in; plan to study in the future; and those for which you have been granted advanced standing (credit for previous studies).

Explanation:

please mark me as brainliest answer

The two DNA bases that are pyrimidines are:

Answers

Answer:

cytosine and thymine / C and T

Which of the following describes hygiene?
A. Practices that prevent disease
B. Strategies to protect patient information
C. Steps for communicating effectively
D. Methods for properly lifting patients
SUBMIT
It’s A

Answers

Answer:

A

Explanation:

hygiene is done by oneself

Answer: A. Practices that prevent disease

Explanation: took the quiz

Allie was in the park playing on the equipment. She noticed that on the highest slide, she slides down
A)
without friction.
B)
with the slowest speed.
with the greatest speed.
D)
at about the same speed as the shortest slide.

Answers

the greatest speed

i had this question on a test and i got it right

As Carter was hammering a nail, he accidentally hit his thumb with the hammer. His response to this is due to a special sensory receptor called a ______.​

Answers

Answer:

boom

Explanation:

booom

The goal of meeting economic and humans needs is to improve blank of life

Answers

Answer:

Quality

Explanation:

HERE IS THE QUESTION;

The goal of meeting economic and humans needs is to improve _____ of life.

In economics, need are things required

to survive. They are things individuals can not afford to live without them. These could be adequate nutritional food, appropriate healthcare as well as water and protective housing. It could also be physical and economic security, and basic education.Social reproduction is essential in satisfying human needs. Changes in the economic needs can be known through state of reproduction. It should be noted that the goal of meeting economic and humans needs is to improve quality of life

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