When you touch something hot, a neuron in your finger senses the temperature. Which best describes the first reaction the neuron has?
A. Neurotransmitters cross a synapse.
B. Sodium atoms travel through the veins.
O C. A resting potential forms.
D. Ions flow into the neuron!

sexual reproduction produces offspring with novel combinations of genes. species that reproduce sexually must maintain two different types of individuals, males and females, which can limit the ability to colonize new habitats as both sexes must be present.

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.