Charles Darwin; he studied the different beak shapes/sizes of Galapagos finches and found that over time, they changed due to their needs for the food found around them (evolution).
X shaped chromosomes are linked together at a place called the centromere
I believe it’s rat fish and octopus but I’m not completely sure
Carries oxygen from pulmonary alveoles to tissue and returns carbon dioxide from tissue to the lungs. and has Fe ions that gives blood the specific red color. and veins specific purple red color is given after oxygen is realesed to the tissue by oxihemoglobine ( at low ph and high temperature because at those conditions the hemoglobine capacity of bonding dicreases) .
