Test 5 Animals~~~ Flashcards
Animals are eukaryotic or prokaryotic
Eukaryotic
Animals lack cell walls because they need to _____
Move around
Animals are multi or uni cellular
Multi cellular
Animals are compressed of many different types of ____ cells
Specialized cells
Cell specialization is
How each specialized cell has a special shape, physical structure and internal composition to make it suited to it’s function
Division of labour is
When animals divide essential tasks to survive between its specialized cell to be more efficient t
Name the 5 ways Animals eat
• herbivores, carnivores, parasite, filter feeders, detritus feeders
Parasites Can cause disease but also be ______
Beneficial
Respiration is the process that takes in ____ and produces ____
Oxygen, CO2
How can small and large animals respire ?
Small - thru skin
Large- lungs or gills working with internal transport system
How do small and large animals excrete
Small- they depend on diffusion
Large- specialized system
Sessile means
Motile means
Sessile- lives entire lives in one spot
Motile- ability to move around
Most animals move with ___ and ___ systems
Muscular and skeletal systems
Insects are aka as___
Arthropods
Insects do not have an ___ skeleton they move with their ___
Interior, exoskeleton
Which animals have an endoskeleton *3 animals
Reptiles, birds and mammals
Their Sexual reproduction includes
_____ and ___
Internal and external fertilization
Animals can reproduce 4 ways
Describe direct and indirect development also
Asexual, sexual, Indirect and direct development
Indirect development- eggs hatch into larvae’s which look nothing like the adult they eventually go thru metamorphosis
Direct development- eggs hatch into miniature versions of he adults they grow larger but their general form does not change
Embryogenesis is the
Process of how an embryo is formed and developed
Two way digestive tract happens when also describe one way
Two way- During gastrulation cells do not completely open at the other end
One way- if during gastrulation cells completely migrate in and create and opening at the other end
State the 3 germ layers
Ectoderm
Mesoderm
Endoderm
Give 2 examples of each of the germ layers
Ectoderm- skin, tooth enamel
Mesoderm- heart and blood cells
Endoderm, urinary bladder and pancreas
Radial symmetry is where we draw imaginary lines thru____
Give 2 examples
The centre of the animal
Ex . Jellyfish, sea star
A animals with radial symmetry do not have a REAL____
Head
Many animals with radial symmetry are sessile or motile
Sessile
Bilateral symmetry is where one side is _____
Reflection of the other ya
Bilateral symmetry is in___ animals
More complex
Anterior, dorsal, ventral and posterior
Which is front back upper and lower
Anterior Posterior Dorsal Ventral *apple pie done visciously
Animals with bilateral symmetry move with their ___ end ____
Anterior, foward
Cephalization is when
Organs gather at the anterior of the animal
Cephalization becomes more apparent as animals become more ___
Complex
Why do we have a Brain
To process information and respond to stimuli in the environment
Small clusters of nerve cells are called ___
Ganglia
If the ganglia becomes large enough it becomes a ___
Brain
Give 2 examples of animals with a 2 way digestive tract
Sponges and Cnidaria
