Biology 1407 Exam questions and
answers graded A+
Animal traits - ANS✅✅unifying characteristics: multicellular, heterotrophic, tissues developed
from embryonic layers
animal differences - ANS✅✅reproduction, development, developmental patterns, animal body
plans are all different in...
collagen - ANS✅✅tissue found only in animals
muscle and nerve cells - ANS✅✅the two types of cells only found in animals
diploid - ANS✅✅reproductive stage that is dominant in animals
haploid gametes - ANS✅✅sperm and eggs-- produced through meiosis
coelom - ANS✅✅means cavity
coelomate - ANS✅✅when you see this word think triploblastic (ectoderm, mesoderm, and
endoderm)
ectoderm - ANS✅✅tissue layer called body covering
mesoderm - ANS✅✅tissue layer lining coelom and suspending internal organs
endoderm - ANS✅✅the digestive tract is located in this tissue layer
Porifera - ANS✅✅(sponges) asymmetrical, only phylum that lacks true tissues, no body cavity,
sexual reproduction is called spawning, asexual is called budding
, choanocytes - ANS✅✅called collar cells, flagellated cells that create microcurrent to suck food
particles into fingerlike projections forming a collar around the cell (facilitate food intake)
ameobocytes - ANS✅✅majority of cellular structure; use pseudopodia to moe throughout
mesohyl
mesohyl - ANS✅✅gelatinous matrix layered into the sponge body
sessile - ANS✅✅attached to substrate; not free-living
suspension feeders - ANS✅✅capture food suspended in water passing through body
sequential hermaphrodites - ANS✅✅individuals able to make both sex gametes; not at same time
Eumetazoans - ANS✅✅all animals that possess true tissues
Cnidaria - ANS✅✅(hydras, corals, jellies) radial symmetry, diploblastic, no body cavity, sexual
reproduction is medusa, asexual is polyp
gastrovascular cavity - ANS✅✅the sac with central digestive cavity w a single opening functioning
as the mouth and anus
lophotrochozoans - ANS✅✅bilateral symmetry, triploblastic tissue, body cavity varies, all
organisms can reproduce sexually, some asexually, protostomes
lophophore - ANS✅✅crown of ciliated tentacles that functions in feeding
trochophore - ANS✅✅larvae in distinct developmental stage; ciliated
Platyhelminths - ANS✅✅*check notes
Polyoplacophora (chitons) - ANS✅✅radula used to scrape hard things
answers graded A+
Animal traits - ANS✅✅unifying characteristics: multicellular, heterotrophic, tissues developed
from embryonic layers
animal differences - ANS✅✅reproduction, development, developmental patterns, animal body
plans are all different in...
collagen - ANS✅✅tissue found only in animals
muscle and nerve cells - ANS✅✅the two types of cells only found in animals
diploid - ANS✅✅reproductive stage that is dominant in animals
haploid gametes - ANS✅✅sperm and eggs-- produced through meiosis
coelom - ANS✅✅means cavity
coelomate - ANS✅✅when you see this word think triploblastic (ectoderm, mesoderm, and
endoderm)
ectoderm - ANS✅✅tissue layer called body covering
mesoderm - ANS✅✅tissue layer lining coelom and suspending internal organs
endoderm - ANS✅✅the digestive tract is located in this tissue layer
Porifera - ANS✅✅(sponges) asymmetrical, only phylum that lacks true tissues, no body cavity,
sexual reproduction is called spawning, asexual is called budding
, choanocytes - ANS✅✅called collar cells, flagellated cells that create microcurrent to suck food
particles into fingerlike projections forming a collar around the cell (facilitate food intake)
ameobocytes - ANS✅✅majority of cellular structure; use pseudopodia to moe throughout
mesohyl
mesohyl - ANS✅✅gelatinous matrix layered into the sponge body
sessile - ANS✅✅attached to substrate; not free-living
suspension feeders - ANS✅✅capture food suspended in water passing through body
sequential hermaphrodites - ANS✅✅individuals able to make both sex gametes; not at same time
Eumetazoans - ANS✅✅all animals that possess true tissues
Cnidaria - ANS✅✅(hydras, corals, jellies) radial symmetry, diploblastic, no body cavity, sexual
reproduction is medusa, asexual is polyp
gastrovascular cavity - ANS✅✅the sac with central digestive cavity w a single opening functioning
as the mouth and anus
lophotrochozoans - ANS✅✅bilateral symmetry, triploblastic tissue, body cavity varies, all
organisms can reproduce sexually, some asexually, protostomes
lophophore - ANS✅✅crown of ciliated tentacles that functions in feeding
trochophore - ANS✅✅larvae in distinct developmental stage; ciliated
Platyhelminths - ANS✅✅*check notes
Polyoplacophora (chitons) - ANS✅✅radula used to scrape hard things
