Saturday, April 2, 2016

2.77 Understand that organisms are able to respond to changes in their environment

So yes, we know that organisms can respond to changes to their environment. Changes are known as stimuli. They can be light, pressure, chemicals, temperature, etc. Organisms must have receptors and, in order to respond, must have effectors (such as muscles or glands). The response determines whether an organism is able to survive the change in environment. 

Plant examples: they grow towards the light, roots grow towards water and towards gravitational pull.
Animal example: a gazelle will run away from a lion


2 comments:

  1. Great explanation of the specification points, and may also just point out that that gif is one of the most beautiful things I have ever had the good chance to lay my eyes on. :) Absolutely spot on :P

    ReplyDelete
  2. that jif is from Monty Python and the holy grail

    ReplyDelete