10 facts about evolution 19

Information about 10 facts about evolution 19

Published on March 26, 2020

Author: saraivethlopezmolina

Source: slideshare.net

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1. 10th grade BIOLOGY -Sara Molina 10 facts about evolution  First, we must remember or to know that evolution is a theory in biology, it postulate that the various types of plants, animals, and other living things on Earth have their origin in other preexisting types and that the distinguishable differences are due to modifications in successive generations.  I would like to emphasize the etymological origin of the word "evolution" and that is why with google help I can assure the following: The word evolution is a cultism taken from the latin evolutio of the verb evolvere, derived from the suffix ex- (cast out) and the verb volvere- (to spin); meaning to go around outside. In biology this term is used to describe the process of changing from a simple to a more complex form.  The theory of evolution is one of the fundamental keystones of modern biological theory.  We can find different types of evolution 1. Convergent evolution when the same adaptations evolve independently, under similar selection pressures.

2. 10th grade BIOLOGY -Sara Molina 2. Co-evolution when two species or groups of species have evolved alongside each other where one adapts to changes in the other. 3. Adaptive radiation when a species splits into a number of new forms when a change in the environment makes new resources available or creates new environmental challenges.  It took Charles Darwin, an English naturalist who laid down a framework for the theory of evolution, 20 years to write and publish his original book On the Origin of Species that explained the process of evolution.7/21/2019  Most scientists think that understanding evolution helps us solve biological problems that impact our lives. There are excellent examples of this in the field of medicine. To control hereditary diseases in people, researchers study the evolutionary histories of the disease-causing genes. In these ways, a knowledge of evolution can improve the quality of human life.  This powerful explanatory and predictive theory has become the central organizing principle of modern biology as I said before; provide a unifying explanation for the diversity of life on Earth.

3. 10th grade BIOLOGY -Sara Molina  60,000 years ago, as humans moved away from Africa and Ecuador, they began to develop certain variations in skin tone, hair texture and facial features. It is said that the first humans had thick bones to deal with severe climates. Starting 50,000 years ago, our bones became smaller and weaker as we did less physically demanding jobs.  The size of the brain tripled in the course of human evolution. Mainly due to the dramatic climate change and our requirements to process new unknown terrains. The task of the human being has always been to survive and over time has been creating ways, tools to achieve it, that is a very clear evolution that without a doubt can be both positive and also the opposite.  And to conclude this curious fact that I call my attention, scientists agree that the "wisdom teeth" are remnants of DNA from when humans first ate a diet of plants. They thought the same thing about the appendix for a long time, but thanks to the passage of time, technological advances, their perspective has changed, now it is stated that it is not useless since it is a "safe house" for the beneficial bacteria that live in the human intestine.

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