Adaptive features — Paper 1 · IGCSE Biology (9-1) 0970

35 A feature of some plants that live in dry places is that the leaves are reduced to spines. What is an advantage of the leaves being reduced to spines? A decrease in photosynthesis B decrease in transpiration C increase in photosynthesis D increase in transpiration

1 marks

Answer: B

This question in 0970/11 May/June 2018

33 Different organisms have different adaptive features. For example, the anthers of wind-pollinated flowering plants have long filaments. What is true of this adaptive feature? A Filament length is not affected by genes. B It gives the plant an advantage in any environment. C Longer filaments attract more insects. D It makes the plant more likely to reproduce.

1 marks

Answer: D

This question in 0970/12 Oct/Nov 2019

38 A crop plant has been genetically modified to make it resistant to herbicides. Which is a possible disadvantage of introducing this new crop plant? A Loss of weeds reduces competition. B Some weeds might become resistant to the herbicide. C The crop plant is unharmed and produces a higher yield. D The new gene will appear in new generations of the crop.

1 marks

Answer: B

This question in 0970/11 May/June 2020

31 The photograph shows a tiger. Which visible adaptive feature makes the tiger a good predator? A large teeth B long whiskers C small ears D thick fur

1 marks

Answer: A

This question in 0970/12 May/June 2020

35 A species of insect usually has pale-coloured wings. This helps to camouflage them on pale-coloured tree trunks. A few of the insects in this species have darker coloured wings. After a number of years the tree trunks become darker in colour due to environmental changes. The insects with dark-coloured wings become more common than insects with pale-coloured wings in this species. Which process causes this change in the proportion of insects with dark-coloured wings? A biotechnology B conservation C natural selection D selective breeding

1 marks

Answer: C

This question in 0970/12 Oct/Nov 2021

35 Many mammals have coloured fur and many birds have coloured feathers. Which uses of colour could help males survive long enough to pass on their features to their offspring? hiding from hiding from warning animals animals which animals which that they are might eat them they could eat poisonous A ✓ ✓ ✓ key B ✓ ✓ ✗ ✓ = yes C ✗ ✓ ✗ ✗ = no D ✓ ✗ ✓

1 marks

Answer: A

This question in 0970/11 May/June 2024

34 The images show four animals. 1 2 sheep eagle 3 4 tortoise tiger Which two animals show adaptive features for being secondary consumers? A 1 and 3 B 1 and 4 C 2 and 3 D 2 and 4

1 marks

Answer: D

This question in 0970/12 May/June 2024

32 What is a flagellum? A a ball of cells that implants into the lining of the uterus B a cell structure that releases energy C a cell that forms after the sperm cell fuses with the egg cell D an adaptive feature used for movement of sperm cells

1 marks

Answer: D

This question in 0970/12 Oct/Nov 2024

38 What is a description of an adaptive feature? A an inherited characteristic that helps an organism to survive and reproduce B the differences between individuals of the same species C the genetic make-up of an organism D the transmission of information from generation to generation

1 marks

Answer: A

This question in 0970/12 Oct/Nov 2024

34 Giraffes are mammals that have long necks. This enables them to eat leaves from tall trees. One theory to explain how giraffes developed long necks is natural selection. Which statement is part of the explanation for the development of long necks in giraffes by natural selection? A Giraffes with longer necks were better adapted to the environment than giraffes with shorter necks. B Humans selected giraffes with the longest necks and bred them together. C There was no competition for food. D There were no trees in the environment.

1 marks

Answer: A

This question in 0970/11 May/June 2025

35 Alpine plants grow on mountains at high altitude. Alpine plants can only grow for a few months because they are covered in snow for most of the year. What are most likely to be adaptive features of alpine plants? A They flower quickly and produce seeds quickly. B They flower quickly and produce seeds slowly. C They flower slowly and produce seeds quickly. D They flower slowly and produce seeds slowly.

1 marks

Answer: A

This question in 0970/11 May/June 2025

32 The photograph shows the butterfly Caligo martia. Which feature is an adaptation to prevent predation? A large wings to fly slowly B long antennae to detect flower nectar C spots on the wings that look like large eyes D the pattern on the wings that makes the butterfly easier to see

1 marks

Answer: C

This question in 0970/12 May/June 2025