c. because only male repoduce sperm
Answer:
I think it is A. Metaphase
Invertebrate doesn't posses "Backbone" whereas Vertebrate chordate have that. That's the only & most important difference between them.
Hope this helps!
The one which is responsible for transmitting an impulse across a synapse to another cell is the neurotransmitters. It allows the transmission of signals from one neuron to the next across synapses.
The correct answer among the choices is letter C.
B. Wind.
A abiotic factor is non-living, making a, c and d wrong.
