What makes a cell in a complex multicellular organism specialised?
Its features are suited to a particular function, for example its shape or the abundance or arrangement of its cell structures.
AQA GCSE Combined Science: Trilogy (8464) — Biology — Foundation · 4.8
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What makes a cell in a complex multicellular organism specialised?
Its features are suited to a particular function, for example its shape or the abundance or arrangement of its cell structures.
How should you explain a specialised cell’s adaptation?
Link a specific feature of the cell to how it helps the cell perform its function.
What is an adaptation?
An inherited feature that makes an organism better suited to its environment and can increase its reproductive success there.
What are the three types of adaptation, and what does each involve?
How can natural selection make a population better adapted over generations?
It can increase the frequency of alleles associated with advantageous features.
How do adaptation and selection relate to evolution and the diversity of living organisms?
Together, they contribute to evolution and the diversity of living organisms.
What is a cell?
A basic living unit.
How are new cells produced?
By the division of existing cells.
How are cells, tissues, organs and organ systems organised in a multicellular organism?
Groups of cells work together to form tissues; different tissues work together to form organs; organs work together to form organ systems.
What is an organism?
An individual living thing made up of coordinated parts.
How can genetic variation affect adaptation within a population?
Some individuals carry alleles that make them better adapted to their environment than others.
What is the consequence of producing more offspring than can survive?
A struggle for survival, including competition for resources.
Why are better-adapted individuals more likely to pass their alleles to the next generation?
They are more likely to survive and reproduce.
How can natural selection affect the frequency of advantageous alleles over generations?
Alleles associated with advantageous inherited characteristics can become more common in the population.