What did Darwin discover about snakes whales and humans when they were embryos?
What did Darwin discover while studying developing embryos (snakes, whales, human)? Darwin discovered that developing embryos contain certain traits/limbs that disappear before the organism is born. The idea of artificial selection helped Darwin come up with the idea for natural selection.
What is known as the best idea ever thought of?
One answer: “Evolution: Charles Darwin’s brilliant theory that explains how species adapt and change.” It’s been called the best idea anyone ever had.
How did tortoises differ on Galapagos Islands and what caused these differences?
How did tortoises and birds differ among the islands of the Galapagos? The tortoises on the Galapagos Islands all had different shaped shells; therefore they were different species of the same category of tortoises. Darwin found several types of small, ordinary brown birds. Most of them had differently shaped beaks.
What is significant about the shapes of the tortoise shells in the Galapagos Islands?
Dome-shaped Tortoises Tortoises with dome-shaped shells live on islands where there is an abundance of vegetation close to the ground, making it less necessary for the animals to raise their heads to feed. The majority of tortoises on Isabela Island have dome-shaped shells.
What is the scientific term for survival of the fittest?
“Survival of the fittest” is a phrase that originated from Darwinian evolutionary theory as a way of describing the mechanism of natural selection. Darwin has called ‘natural selection’, or the preservation of favoured races in the struggle for life.”
What are three characteristics of the Galapagos tortoise?
Shell functions (Chiari et al. 2009)
- Protection.
- Regulation of body temperature (thermoregulation)
- Facilitation of mating and reproduction.
- Ability to turn over (“self-righting”)
- Locomotion.
- Storage of water, fat, and wastes.
