When the gill-withdrawal reflex of the sea snail aplysia has been successfully conditioned to a stimulus such as a squirt of water from a waterpik, observed changes in the neural circuit include: an increase in the number of synapses. a decrease in the number of synapses. cell death?

What was the land like over 500 million years ago? what was under the sea?

14) whenever diploid populations are in hardy-weinberg equilibrium at a particular locus a) the allele's frequency should not change from one generation to the next, but its representation in homozygous and heterozygous genotypes may change. b) natural selection, gene flow, and genetic drift are acting equally to change an allele's frequency. c) this means that, at this locus, two alleles are present in equal proportions. d) the population itself is not evolving, but individuals within the population may be evolving.

Read the article and use the information to answer the questions that follow discovering the structure of dna explain how the discoveries by rosalind franklin watson and crick build an accurate model of dna done