Place the developments in evolutionary history in the proper time frame.

i) charles darwin writes 'on the origin of species'.

ii) lamarck writes about evolution through acquired traits, using a giraffe as his model.

iii) dna sequencing is developed, allowing the comparison of the genes of different organisms.

iv) malthus, an economist, writes about the inevitability that people will exhaust a food supply by reproducing too often.
a) iv, ii, i, iii
b) i, ii, iv, iii
c) ii, i, iv, iii
d) ii, i, iii, iv

In german cockroaches, curved wing (cv) is recessive to normal wing (cv+). bill, who is raising cockroaches in his dorm room, finds that the frequency of the gene for curved wings in his cockroach population is 0.6. in his friend joe’s apartment, the frequency of the gene for curved wings is 0.2. one day joe visits bill in his dorm room, and several cockroaches jump out of joe’s hair and join the population in bill’s room. bill estimates that, now, 10% of the cockroaches in his dorm room are individual roaches that jumped out of joe’s hair. what is the new frequency of curved wings among cockroaches in bill’s room? 0.69 0.4 0.5 0.31 0.20

In sexual reproducing animals once fertilization of the egg takes place, the exists as a single cell until cell division begins. a) egg b) larva c) sperm d) zygote

What must be true for natural selection to heppen