0
Which organ allows an exchange of substances between mother and fetus and is only present during gestation?
Wiki User
∙ 11y ago
placenta
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
Which organs allows an exchange of substances between mother and fetus and is only present during gestation?
placenta
Why exchange of substances blood and cells take place through capillaries?
Capillaries have thin and permeable walls which allow the exchange of substances (such as nutrients, oxygen and CO2) to occur. This enables substances to dissociate throughout the entire body (as capillaries are present throughout the entire body).
Are the substances present before the reaction?
Substances that are present before the reaction are called "reactants" or "reagents".
Substances that are present before the reaction?
Substances that are present before the reaction are called "reactants" or "reagents".
What is the difference between radioactive and non radioactive materials?
Radioactive substances are unstable as a result of the extra neutrons present in the nuclei of the substance. Non radioactive substances are stable.
What substances are present in blood?
i
What is the difference between a non-radioactive substance and a radioactive substance?
Radioactive substances are unstable as a result of the extra neutrons present in the nuclei of the substance. Non-radioactive substances are stable.
Why would the tunica media and tunica adventitia not be present in a capillary?
To permit material exchange between blood and tissues.
What substances are present at equilibrium?
All reactants and products are present at equilibrium.
What is a Form of potential energy in food and dynamite?
The energy present here is stored as chemical energy in the bonds between the atoms of these substances.
Are the substances that present when a chemical reaction begins the products?
The substances that are present when a chemical reaction begins are reactants, at the end of the reaction they form products.
These are the substances that are present before the raction?
thekr
