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2.Human Reproduction
medium
Placenta acts like a
A
Semipermeable membrane
B
Fully permeable membrane
C
Impermeable membrane
D
None of the above
Solution
(a)Placenta is the special semipermeable structure through which the exchange of materials between foetal and maternal circulation occurs.
Standard 12
Biology
Similar Questions
Match the columns
| Column $I$ | Column $II$ |
| $(a)$ Third week | $(1)$ Development of pre umbilical code |
| $(b)$ Third month | $(2)$ Body develops but head remains big |
| $(c)$ Fourth week | $(3)$ Embryonic slit widens |
| $(d)$ Fourth month | $(4)$ Muscles activate |
easy
