Question

Rearrange the following biological terms so as to be in a logical sequence :

1. Blastocyst, Zygote, Morula, Foetus, Embryo.

2. Synaptic Cleft, Axon, Cyton, Dendrites, Axon terminals.

3. Effector, Sensory Neuron, Receptor, Motor Neuron, CNS.

4. Cochlea, Eustachian Tube, Tympanum, Ear ossicles, Pinna.

5. Efferent Ducts, Seminiferous Tubules, Vas deferens, Epididymis, Urethra.​

Answer 1

Answer:

Sequences are as follows:

Explanation:

1. Zygote, Embryo, Blastocyst, Morula, Gastrula, Foetus

2. Synaptic Cleft, Dendrites, Cyton, Axon, Axon Terminals (Direction of nerve impulse).

3. Receptor, Sensory Neuron, CNS, Motor Neuron, Effector (Reflex Action direction).

4. Seminiferous tubules, Epididymis, Vas deferens, Efferent ducts, Urethera (Path of Sperm).