Biology

Biology, 22.08.2019 17:00, skateboardb718

Which statement is true of a placenta?
a. the placenta passes oxygen, nutrients, and other useful substances from the fetus to the mother.
b. the placenta passes oxygen, nutrients, and other useful substances from the mother to the fetus.
c. the placenta mixes blood from the mother and fetus together.
d. the placenta protects the mother from being attacked by the fetal immune system.

answer

Answers: 2

Show answers

Similar questions

Предмет

Biology, 29.07.2019 19:10, KennyMckormic

During erythroblastosis fetalis, a rh- mother's anti-rh antibodies that have crossed the placenta will cause agglutination of the fetus's rh+ rbcs. however, the reverse problem never happens when a rh+ mother is pregnant with a rh- fetus, that is, antibodies produced by the fetus cannot cause agglutination of the mother's rh+ rbcs. this is true because during erythroblastosis fetalis, a rh- mother's anti-rh antibodies that have crossed the placenta will cause agglutination of the fetus's rh+ rbcs. however, the reverse problem never happens when a rh+ mother is pregnant with a rh- fetus, that is, antibodies produced by the fetus cannot cause agglutination of the mother's rh+ rbcs. this is true because agglutinins are physically too large to pass across the placenta fetal antibodies are immature and non-functional antibodies that can cause this agglutination are not produced by a fetus the placenta is a barrier that prevents the passage of all antigens

Answers: 3

Предмет

Biology, 29.07.2019 22:30, jasmine3051

The placenta, a temporary organ that is shed after the infant is born, is the site of exchange of oxygen, nutrients, and waste between the mother and fetus. the placenta, a temporary organ that is shed after the infant is born, is the site of exchange of oxygen, nutrients, and waste between the mother and fetus. a. true b. false

Answers: 1

Предмет

Biology, 02.09.2019 01:30, 01moxberger

The placenta is an organ that allows for the exchange of oxygen, nutrients, and wastes between the mother and the developing embryo. in other words, the placenta is responsible for

Answers: 1

Do you know the correct answer?

Which statement is true of a placenta?
a. the placenta passes oxygen, nutrients, and other us...

Questions in other subjects:

Konu

Mathematics, 21.09.2019 10:30

Do any of the points below fall on the linear equation shown. show work

Konu

Mathematics, 21.09.2019 10:30

If z = 15 cm and x = 17 cm, then what is the length of y?...

Konu

Spanish, 21.09.2019 10:30

Idont make the same mistake twice i make it 5 or 6 times just to be sure...

Konu

Mathematics, 21.09.2019 10:30

Before i close for the night. a simple probability problem. a car rental company has 18 compact cars and 12 midsize cars. if 4 cars are to be selected at random, what is the probab...

Konu

History, 21.09.2019 10:30

Consumption is the purpose of production, according to which of the following individuals? theodore roosevelt franklin d. roosevelt irving fisher adam smith...

Konu

English, 21.09.2019 10:30

What argument is wiesel making in his nobel prize acceptance speech?...

Konu

English, 21.09.2019 10:30

During a change in state, energy is transferred in the form of a. motion b. heat c. light d. moisture...

Konu

History, 21.09.2019 10:30

I. north korea, all factories and business are business are owned by government. what type of economy does north korea have...

Konu

Mathematics, 21.09.2019 10:30

Graph y=sin^-1 (-1/2x) on the interval -5≤x≤5.

Konu

History, 21.09.2019 10:30

Under the current federal laws, americans with disabilities must be...

Other tasks in the category: Biology More task