Which of the following sexually transmitted diseases is caused by a virus?

What is the advantage of reproduction through spores in the case of $Rhizopus$?

Organisms have a varied body design. Name the property which gives the basic difference in body design.

State whether the following statement is true or false: The uterus opens into the vagina through the cervix.

In which method is a branch of the stem bent and buried in the soil to perform vegetative propagation?

$(a)$ Draw a sectional view of the human female reproductive system and label the parts where:
$(i)$ eggs develop.
$(ii)$ fertilization takes place.
$(iii)$ the fertilized egg gets implanted.
$(b)$ Describe,in brief,the changes the uterus undergoes:
$(i)$ to receive the zygote.
$(ii)$ if the zygote is not formed.