Blastula Study guides, Class notes & Summaries

comparative morphology looking at anatomical characters (for example eyes, lungs, bones, etc) and seeing what is shared and what differs in what ways can anatomical characters differ? 1) function 2) form 3) genetic aspects (evolutionary history) homologous structures structures that share a common ancestry (ex: forelimbs in tetrapods) analogous structures structures that share a similar (and precise) function (ex: bat wings + bird wings, woodpecker tongue + aye aye f...

what is oviparity? correct answers eggs are laid, with little or no embryonic development in the mother with either internal/external fertilisation - found in invertebrates, fish amphibians, reptiles, birts and monotreme animals what is ovoviviparity? correct answers eggs retained in mother's body until ready to hatch, with internal fertilisation and young are born lice - no placental connection to mother - found in invertebrates, fish, amphibians and reptiles what is viviparity? correct...

The Process of gut rotation Questions And Answers 1. What is gastrulation? - CORRECT ANSWER-The stage following the blastula whereby the embryo develops three layers: ecto-, meso-, and endoderm. 2. What is the etymology of the word "gastrula"? - CORRECT ANSWER-It is a modern Latin word comprised of the Greek Gaster (stomach) plus the Latin diminutive ending -ula. 3. When does gastrulation take place in humans? - CORRECT ANSWER-At the 3rd week of development. 4. What is the innervatio...

The Process of gut rotation Questions And Answers 1. What is gastrulation? - CORRECT ANSWER-The stage following the blastula whereby the embryo develops three layers: ecto-, meso-, and endoderm. 2. What is the etymology of the word "gastrula"? - CORRECT ANSWER-It is a modern Latin word comprised of the Greek Gaster (stomach) plus the Latin diminutive ending -ula. 3. When does gastrulation take place in humans? - CORRECT ANSWER-At the 3rd week of development. 4. What is the innervatio...

Biology 30 (Alberta) - Reproduction and Embryology Latest 2023 Graded A+ Kidney Filters blood of impurities (eg. Urea) and produces urine. Ureter Transports urine to the bladder for storage. Bladder Stores urine. Urethra Common duct for the excretion of urine and semen from ejaculation. Testes Produces sperm under the influence of FSH and testosterone under the influence of LH. Epididymis Involved in sperm maturation (first 2/3rd's) - last 3rd is involved in mature sperm storage. Prostate...

CMMB 403 - Final Exam Review 2024 Update| Questions with Correct Answers| Certified Quality Verified by Experts Which animal's development is chick development most similar to compared to other species?Most similar to humans than other species talked about in lecture (like amphibians and flies) What is the Nieuwkoop Centre (NC)? When does it emerge during embryo development?Centre that induces the formation of the organizer and later the dorsal mesoderm; emerges during the late ...

Embryology the study of the development of a unicellular zygote into a complete, multicellular organism; in the course of nine months, a unicellular human zygote undergoes cell division, cellular differentiation, and morphogenesis in preparation for life outside teh uterus; much of what is known about mammalian development stems from the study of less complex organisms such as sea urchins and frogs Fertilization an egg can be fertilized within 12-24 hours after ovulation; fertilization ...

BIOLOGY 1108 Final Exam Questions and Answers Latest Updated 2024 (Graded A+) Alpine - Correct Answers Similar to Tundra, Lacks permafrost, Budding - Correct Answers Form of asexual reproduction in which a bud/protrusion forms on an organism and eventually breaks off to form a new organism that is smaller than its parent. Fragmentation - Correct Answers A type of asexual reproduction in which one organism is broken into pieces, each of which develops into a new individual Parthenogenesis...

Which of these stages will be formed when a 16-celled embryo undergoes differentiation? correct answer: Blastula The organism shown in the drawing usually reproduces through the _________ process called binary fission. A) asexual B) heterosexual C) isosexual D) sexual Bacteria reproduce through the asexual process called binary fission, or simple cell division. correct answer: A) asexual The picture depicts budding in the yeast cell. What is the result of this pro...

What is the working definition of an animal? - Animals are multicellular eukaryotes that are heterotrophic and undergo a blastula stage Two problems associated with morphological classification? - 1. Convergent evolution 2. Minor mutations Why was the organism found in the 90s labelled as a bivalve mollusc? - Because it was consuming bivalve eggs and had traces of their DNA in its gut. What are some problems with molecular sequencing? - 1. Differences in mitochondrial and nuclear DNA ...