IB myp 4-5 Biology – Practice Questions- All Topics
Topic :Evolution-Biodiversity
Topic :Evolution– Weightage : 21 %
All Questions for Topic : Life Cycles,Natural Selection,Cell division,Mitosis,Meiosis,Reproduction,Biodiversity,Inheritance and variation,DNA and genetics
Question
a.Select the correct terms and drag and drop them to complete the diagram.
▶️Answer/Explanation
Ans:
Question:
Use the dichotomous key to recognize the different types of cedar shown in the photos A–D.
▶️Answer/Explanation
Ans: There is an error in the key in the book: the number at the end of the first line of the key should be 2, not 1.
A: Cedrus deodara – this may key out as Cedrus libani because the photos have been printed at two–thirds life size, rather than life size. If possible use real specimens for this exercise.
B: Cedrus atlantica
C: Very hard to discern from the photo – there are no translucent glands, the foliage has white streaks and the smell was of pineapple so this is Thuja plicata – see question 5.
D: Cryptomeria japonica
Question:
Every species of organism is given a binomial, consisting of a genus and a species name. What is the genus and the species name for Western red cedar?
▶️Answer/Explanation
Ans: Genus name is Thuja and species name is plicata.