unit 7 biology

structural adaptations

structural adaptations

• camouflague

• cold environment, thick layer of fur

• tear meat

• burrows

• scratch tree

• signal territory

behavioural

• bask in sun to absorb heat

• migrate durin winter

• play dead

• courting behaviour

functional

• desert converse water by producing little sweat

• brown bears, low metabolism,

• late implantation of embryos

mycoprotein

• fungus fusarium, produce mycoprotein, grown in anaerobic conditions on glucose syrup,

• fungal biomass harvested and purified, produce the mycoprotein

fertilisation

• produce new cell zygote, develop into embryo, number of cells increase by mitosis, embryo developed, cell begins to differentiate

speciation

• populations geographical isolated, with different conditions in each area

• variation in each population due to mutatios

• organisms compete and ones that are better adapted to survive and reproduce, so advantageous allele are selected, natural selection

• different alleles advantageous, in different environments

• selection of different alleles, increase variation, so genetically different, they cannot reproduce to make fertilise offspring