LEC.142 Revision Lecture

Key points from the whole modules

Homologous

Common ancestry for a species

Analogous

Convergent evolution, different ancestry

Paraphylectic

An ancestor + some of the descendants

Monophylectic

Ancestor + all descendants

6

Amount of kingdoms of life

How are big groups of animals separated

Body plans

2 Types of body plans

Symmetry and cavities

2 development types

Protostomes, Deuterostomes

Protostome blastopore forms…

Mouth

Deuterostome blastopore forms…

Anus

Characteristics of arthropods

Jointed appendages

Symmetry of cnidaria

Radial

4 types of gas exchange in arthropods

through the skin, gills, book lungs, tracheae

Types of cnidarians

polyps and medusa

3 types of life cycle in insects

ametabolous, hemimetabolous, holometabolous.

How many types of insect mouthparts are there

6

How do planarians reproduce

Asexual regeneration

What uses sexual self-fertilisation

Tapeworms

What defines a bird

Feathers

Wing ratio

wingspan^2/wing area

High wing ratio

Long and thin

Adaptations for flight

Wing shape, respiratory system, hollow bones, no teeth

Vivipary

Birthing live young

% of species that do monogamy

Anisogamy

Females having few gametes, males having few