Explain that seed and fruit dispersal by wind and by animals is a means of colonising new areas and of reducing competition
O Level Biology
Investigate and describe the structure of a seed, limited to embryo (radicle, plumule and cotyledons) and testa
Investigate and describe the structure of a seed, limited to embryo (radicle, plumule and cotyledons) and testa
Understand that after fertilisation the ovules develop into seeds and the ovary develops into a fruit
Understand that after fertilisation the ovules develop into seeds and the ovary develops into a fruit
Describe the growth of the pollen tube and its entry into the ovule followed by fertilisation (production of endosperm and details of development are not required)
Describe the growth of the pollen tube and its entry into the ovule followed by fertilisation (production of endosperm and details of development are not required)
Discuss the potential effects of self-pollination and cross-pollination on a population, in terms of variation, capacity to respond to changes in the environment and reliance on pollinators
Discuss the potential effects of self-pollination and cross-pollination on a population, in terms of variation, capacity to respond to changes in the environment and reliance on pollinators
Compare the flower structure and the pollen from insect-pollinated and wind-pollinated flow
Compare the flower structure and the pollen from insect-pollinated and wind-pollinated flow
Identify and draw the anthers and stigmas of a wind-pollinated flower
Identify and draw the anthers and stigmas of a wind-pollinated flower
Identify and draw the sepals, petals, stamens (anthers and filaments) and carpels (stigmas, styles, ovaries and ovules) of an insect-pollinated flower
Identify and draw the sepals, petals, stamens (anthers and filaments) and carpels (stigmas, styles, ovaries and ovules) of an insect-pollinated flower
Discuss the advantages and disadvantages of asexual reproduction and sexual reproduction
Discuss the advantages and disadvantages of asexual reproduction and sexual reproduction
Identify examples of asexual reproduction
Identify examples of asexual reproduction