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Organisms can respond to changes in their external and internal environment in different ways including through homeostasis - Leaving Cert Biology - Question 15 - 2021
Question 15
Organisms can respond to changes in their external and internal environment in different ways including through homeostasis. (i) Explain the underlined term. (ii) ... show full transcript
Worked Solution & Example Answer:Organisms can respond to changes in their external and internal environment in different ways including through homeostasis - Leaving Cert Biology - Question 15 - 2021
Step 1
Explain the underlined term.
Answer
Homeostasis refers to the ability of an organism to maintain a constant or stable internal environment despite changes in external conditions. This involves processes that regulate various physiological functions, such as body temperature, pH levels, and hydration, ensuring that the conditions remain optimal for cellular functions.
Step 2
Name one anatomical and one chemical way plants can protect themselves.
Answer
Anatomical: One anatomical way plants can protect themselves is through the presence of thorns or stinging hairs that deter herbivores.
Chemical: A chemical way is the production of heat shock proteins or toxic substances that are unpalatable to herbivores, thereby providing a defense mechanism against plant-eating animals.