Some examples from this set of practice questions
1.
how do animals try to increase their chances of survival ?
Answer: by responding to changes in their internal and external environment
2.
what other words we can refer to changes in the internal and external environment?
Answer: stimuli
3.
what is the definition of homeostatis?
Answer: maintaining a constant internal environment to ensure optimal conditions for enzyme action and functions of all cells, despite fluctuations in the external environment
4.
what are the 2 communication systems in the body?
Answer: nervous system and endocrine system
5.
what is cell signalling?
Answer: communication between cells, for example by a hormone binding to its receptor
6.
example of cell signalling
Answer: 1 cell releases a chemical which has an effect on the target cell, which responds to the signal
7.
how can cells transfer signals ?
Answer: locally and over large distances
8.
example of how cells transfer signals locally?
Answer: neurotransmitters transfer signals between neurones at synapses
9.
example of how cells transfer signals over large distances ?
Answer: hormones travel through the bloodstream to reach a target cell and trigger a chemical response within the cell
10.
definition of negative feedback
Answer: reverse change detected
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
You can quickly pay through credit card for the summaries. There is no membership needed.
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Stuvia is a marketplace, so you are not buying this document from us, but from seller erikakumar. Stuvia facilitates payment to the seller.
No, you only buy these notes for £3.49. You're not tied to anything after your purchase.
4.6 stars on Google & Trustpilot (+1000 reviews)
66579 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now
