Diversity of Life pt 2 Flashcards
(40 cards)
Kingdom animalia are all __ and ___. Most are ___ during some part of their life cycle. They have no __ __, and have __ or ___ ___ ___ that form during embryonic development.
multicellular, heterotrophic, motile, cell wall, 2, 3, tissue layers
One way to classify animalia is by body symmetry. ____ animals have a sagittal plane that divides the body into left and right halves. These organisms also have a __ and ____, and most have ____. ____ symmetric animals have a circular arrangement around a central axis that has an ___ and ___ (without a mouth) side. Some animals are ___. Some animals show different body plans at different stages in their ___
bilateral, head, tail, cephalization, radial, oral, aboral, asymmetrical, development
Collection of nervous tissue in the front of an animal (brain
cephalization
Examples of bilateral symmetrical animals are __ and ___. ___ are examples of radial symmetrical animals with the oral side on the ___. ____ are examples of asymmetric animals
humans, lobsters, starfish, bottom, sponges
____ are animalia that lack tissues. They have no ___ design or specialized ____. There is only one phylum which are ____ (___). ____ make up the rest of the animalia and they do have tissues
parazoa, complex, organs, porifera, sponges, metazoa
Animalia can also be classified by their __ ___. ____ animals have 2, an __ and ____. ___ animals have 3, an ___, ___ and ___.
germ layers, diploblastic, endoderm, ectoderm, triploblastic, endoderm, mesoderm, ectoderm
All radial symmetrical animals are _____. All bilateral animals are ___
diploblastic, triploblastic
a body cavity located between the mesoderm and endoderm
coelom
Triploblastic animals can either be an ____, when there is no coelom located in the body, ___/___ where the coelom is completely surrounded by the mesoderm, and ____, where the coelom is not completely surrounded by the mesoderm
acoelomate, eucoelomate, coelomate, pseudocoelomate
Triploblastic coelomates become a ____ if the blastopore becomes the mouth and undergoes ___ cleavage, and a ___ if the blastopore becomes the anus and undergoes ____ cleavage
proteostome, spiral, deuterostome, radial
If animalia have a ______/ ____ digestive tract, in which there is only a ___ opening for food and no ____. in this, food is digested in a ___ ___, and expelled through the same hole. if animalia have a complete or ____ digestive tract, they have both a __ and __ and the tract is also referred to as an __ ___
two way, incomplete, single, anus, gastrovascular cavity, one-way, mouth, anus, alimentary canal
A form of asexual reproduction where an egg develops into a new individual without fertilization
parthenogenesis
When gametes are released into the environment where they meet and fuse
external sexual reproduction
When gametes are deposited inside and organism and fuse
internal sexual reproduction
Individuals that have both male and female reproductive organisms
monoecious / hermaphroditism
individuals that are males or females and produce one type of gamete
sexually dimorphic / dioecious
Porifera or ____ are ______. Thus they are not __ or ___ and have no coelom. They are the only phylum that are ____. They rely on the flow of water through their bodies to gain food, in the simplest form of digestion called __ ___. They can reproduce asexually by ___ or ____. They can also reproduce sexually, and release either sperm or eggs ____, making them ___.
sponges, parazoa, diplo, triploblastic, intracellular digestion, fragmentation, budding, externally, hermaphrodites
Porifera are also __ __, they feed on particles in water. They are ____, or do not move, and contain ____, cells that have flagella that move water in and out of the sponge. They also have ____, sharp-needle like structures that provide ___ and ____
suspension feeders, sessile, choanocytes, spicules, support, defence
Cnidaria compose ___, __ and ____. They are _____, and exhibit ___ symmetry. They have an _____ digestive tract and can produce __ and ___. When cnidarians are sessile, they are in the ___ stage, and when they are mobile, they are in the -__ stage
jellyfish, coral, hydras, diploblasts, radial, incomplete, asexually, sexually, polyp, medusa
The polyp stage is ___ and ___. They reproduce asexually by ___ and can also reproduce sexually. Organisms in the medusa stage only reproduce by __ __ reproduction
primitive, sessile, budding, external sexual
Cnidaria have a __ ___ or a primitive nervous system where nerves are spread apart to allow them to respond to __ __ and ___ in the water. Due to them being a radial symmetrical animal they do not have ___ and thus no ___. They also have ___ or cells that have ____ that can sting. They also have a ____ skeleton or a build up of __ __ that helps in locomotion
nerve net, physical contact, motion, encephalization, brain, cnidocytes, nematocysts, hydrostatic, fluid pressure
____ compose trematodes, tapeworms and flat worms. They are ____, and ____. They have ____ symmetry and also have _____ in the form of a ______ ___ which is their brain. Their digestive tract is ____, and they can reproduce asexually or sexually in which they are ___. They also have two __ ___ or collections of nerves that span the length of their bodies
platyhelminthes, triploblastic, acoelomates, bilateral, cephalization, centralized ganglia, incomplete, hermaphrodites, nerve cords
Platyhelminthes also have a ____ system made of ____, or a collection of flame cells. These cells aid in _____, or the movement of substances across a semi permeable membrane.
excretory, protonephridia, osmoregulation
Phylum _____ are composed of ___ and ___ worms. They are ____, and _____. They exhibit ____ symmetry, but no ____, rather _ ___. They have a ___ digestive tract. They have a wide range of reproduction, can be ___, __ and ____. They also have an _____ ___ that acts as a __ and physical barrier to the environment, can be shed in a process called ____.
nematoda, round, hook, triploblastic, pseudocoelomates, bilateral, encephalization, nerve cords, complete, monoecious, dioecious, parthenogenic, exoskeleton cuticle, chemical, ecysis