Answer:
leukocyte
Explanation:
leukocyte is the organelle missing in the red blood cell.
It effects the environment because it can cause unstability in the food web and biotic and abiotic factors
The correct answer is d. both excitation and inhibition.
There is a process which is called summation and it refers to the process that determines whether or not an action potential (on postsynaptic neuron) will be generated by the combined effects of excitatory and inhibitory signals (from the presynaptic neurons). Depending on the sum total of inputs, summation may or may not reach the threshold voltage to trigger an action potential (firing of postsynaptic potential).
Well oxygen has 6 electrons in its outer shell and mg has 2. Oxygen need two to complete it's outer shell and mg needs to lose 2 to gain a complete out we shell.
<span>the two chromosomes that make up a homologous pair differ as</span> they contian different alleles for the same trait
