The exophthalmic goiter is caused, due to the hypersecretion of ------ hormone.

The number of sperms that result from the division of 10 spermatogonia is ----------- sperms

The ligament that links the femur bone with the fibula bone is the ---------- ligament.

The substances that work only in the presence of antibodies are ------

The decrease in the secretion of the two hormones FSH and LH may lead to -------

Which of the following hormones are soluble in water?

Which of the following hormone (s) has(have) a role in the transmission of nerve impulse through the axon of neuron?

The ovum remains alive in the fallopian tube till the ------------ day from the beginning of menstruation.

From the means that the plant uses to destroy the microbe, when it is infected by a pathogen is -----------

The embryos that have the same genes are ------------ twins.

The case of test tube babies is considered an ---------

Thymosin hormone stimulates the maturation of lymphoid stem cells into ------------- cells

The cells that destroy the foreign bodies and change into phagocytes when needed are the -----------

The antigen-MHC protein complex activates ---------- cells.

The number of the thoracic cage and ribs bones is ---------- bones

The smallest contraction unit in the skeletal muscle is ----------

The form of asexual reproduction that leads to the variation in resulted individuals is the -------------------

Malaria Plasmodium reproduces by ------------- to form merozoites.

The egg cell is located in the embryo sac and next to the ---------

We can produce strains of plants that are resistant to diseases and insects through -----

The antibody consists of -------- polypeptide chains.

All the following are from the first lie of defence, except the ------------

The cytotoxic T-cells recognize the transplanted tissues and carcinogenic cells by ------- receptor.

The two testes of male human embryo develop after the ---------- from pregnancy.

The secretion of progesterone hormone begins in the -------- day from the beginning of menstruation