Home > 47: Animal Development > Activities Quiz
 
 
Chapter 47: Animal Development
 
Activities Quiz
 

Activities Quiz


1 .       In sea urchins, the process of fertilization produces a(n) _____. (Activity: Sea Urchin Development) 

 archenteron
 morula
 gastrula
 gamete
 zygote
2 .       What is the cortical reaction? (Activity: Sea Urchin Development) 

 the formation of a fertilization envelope that bars additional sperm from entry into the egg
 the release of hydrolytic enzymes from the sperm cell
 a depolarization of the eggs' plasma membrane so that only one sperm cell can fuse with it
 a series of rapid mitotic divisions that follow fertilization
 the process that forms a three-layered embryo
3 .       As cleavage continues, a zygote forms into a solid multicellular ball called a(n) _____. (Activity: Sea Urchin Development) 

 endometrium
 morula
 trophoblast
 gastrula
 blastula
4 .       Several hours after fertilization, cleavage results in the formation of a hollow ball of cells called a _____. (Activity: Sea Urchin Development) 

 blastomere
 morula
 trophoblast
 gastrula
 blastula
5 .       The three-layered embryo is the _____. (Activity: Sea Urchin Development) 

 archenteron
 morula
 trophoblast
 gastrula
 blastula
6 .       The _____ eventually develops into the sea urchin's digestive tract. (Activity: Sea Urchin Development) 

 blastocoel
 archenteron
 blastomere
 ectoderm
 blastopore
7 .       During gastrulation, invagination occurs at the _____. (Activity: Sea Urchin Development) 

 archenteron
 blastocoel
 endometrium
 blastopore
 trophoblast
8 .       In vertebrates, the ectoderm gives rise to the _____. (Activity: Sea Urchin Development) 

 skeleton
 circulatory system
 outer layer of skin
 lining of the digestive tract
 pancreas
9 .       During gastrulation in frogs, a rod of mesoderm under the dorsal surface forms the _____. (Activity: Frog Development) 

 notochord
 ectoderm
 endoderm
 archenteron
 blastopore
10 .       During gastrulation in frogs, cells from the animal pole spread over the embryo and form the _____. (Activity: Frog Development) 

 endoderm
 ectoderm
 archenteron
 blastopore
 blastula
11 .       The notochord functions as a core around which mesodermal cells form the frog's _____. (Activity: Frog Development) 

 backbone
 blastopore
 endometrium
 nervous system
 archenteron
12 .       An ectodermal thickening above the frog's notochord forms a _____. (Activity: Frog Development) 

 pancreas
 neural plate
 skeleton
 liver
 lining of the stomach
13 .       The _____ is(are) formed when the neural folds join and a portion of the neural plate sinks beneath the embryo's surface. (Activity: Frog Development) 

 archenteron
 anus
 back muscles
 neural tube
 digestive system
14 .       The enlarged anterior portion of the neural tube will develop into a frog's _____. (Activity: Frog Development) 

 spinal cord
 tongue
 reproductive system
 outer layer of skin
 brain
15 .       The posterior portion of the neural tube will develop into the frog's _____. (Activity: Frog Development) 

 spinal cord
 brain
 blastocoel
 digestive tract
 anus





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