Germ layers - Study guides, Class notes & Summaries

General Embryonic Development is Described as Either Trimesters (3x 3-Month Periods):  First: - Foundations of Major Organs  Second: - Development of Organs  Third: - Rapid Growth & Fully Functional Organs. OR... Anatomical Stages: **(These are more relevant) Pre-Embryonic Period: 0-2 Weeks  Fertilisation  Blastocyst Formation & Implantation  Gastrulation Embryonic Period: 3-8 Weeks  Development & Differentiation of 3 Germ Layers into foundations of Organs. Foe...

Biology 172 UH MANOA Exam 2 Questions and Answers 100% Pass **What are some defining characteristics of animals?** Animals are multicellular organisms that lack cell walls and are heterotrophic, meaning they obtain nutrients by consuming other organisms or organic matter. Their cells are held together by structural proteins such as collagen, and they exhibit a wide range of forms and behaviors. **Explain the role of collagen in animal bodies.** Collagen is the predominant protein in...

BIO 172 Pre-Questions Latest Version Graded A+ **What is a spermatheca?** A. Stores male gametes in the male reproductive system B. Sorts viable male gametes from non-viable male gametes C. Delivers male gametes to females D. Stores male gametes in the female reproductive system E. Creates male gametes **Correct Answer:** D. Stores male gametes in the female reproductive system **Where does internal fertilization occur in organisms?** A. Viviparity B. Ovoviparity C. Oviparity ...

BIO 172 UH Manoa Exam 2 Latest Update Graded A+ Animals Multicellular eukaryotes Heterotrophs: Ingest their food Lack Cell Walls Body held together by structural proteins Collagen Make up connective tissues (fibers) Flexible and high tensile (stretching) Skin Dense irregular arrangement of collagen Ligament Collagen arranged in sheets (Connects Bones) Tendon Cable-like arrangement of collagen (Connects muscle to bone) Zygote Fertilized egg (Sperm+Egg=Zygote) Undergoe...

Animals Ans: Multicellular eukaryotes Heterotrophs: Ingest their food Lack Cell Walls Body held together by structural proteins Collagen Ans: Make up connective tissues (fibers) Flexible and high tensile (stretching) Skin Ans: Dense irregular arrangement of collagen Ligament Ans: Collagen arranged in sheets (Connects Bones) Tendon Ans: Cable-like arrangement of collagen (Connects muscle to bone) Zygote Ans: Fertilized egg (Sperm+Egg=Zygote) Undergoes rapid cell division cal...

CAPS 421 Kopp Exam Questions and Answers What are two ways that we can define cell types? - Answer-Cells needs to have characteristic markers and a specific function Where do all of the cells in our body come from? What is special about these cells and what they are able to give rise to? - Answer-Come from the fertilized egg which is made up of the parental DNA. These are considered to be totipotent cells as they can give rise to extraembryonic cells, as well as the embryo proper (meso...

Biology (Bio 198) KSU FINAL Exam Questions & Revised Correct Answers. Guarantee Pass!! Identify the characteristics that generally distinguish animals from other organisms - ANSWER : - symmetry - primary germ layer - coelom - segmentation - cephalization Radial symmetry - ANSWER : longitudinal (up and down), in some stages of life. Any plane cut along this up-down axis produces roughly mirror image halves. Bilateral symmetry - ANSWER : has lower and upper sides, but no ...

Define embryology, cytology & microscopic anatomy ...Embryology- development before birth, Cytology- cells of the body, Microscopic Anatomy- structures to small to be seen with naked eye What produces the most ATPs during cellular respiration ...glucose, and the electron transport chain What tissue type comes from all 3 embryonic germ layers ...Epithelial; endoderm, mesoderm, ectoderm What is a frontal section/cut ...through torso- divides the body by anterior(front) and posteri...

Full summary for the course molecular principles of development (NWI-BB084B) - Radboud University, Nijmegen

Bio 120 Exam QUESTIONS WITH DETAILED VERIFIED ANSWERS | A+ GRADE ASSURED Synapomorphy A shared derived character or trait state that distinguishes a clade from the other organisms. Analagous Having characteristics that are similar because of convergent evolution, not homology. Homologous Similarity in characteristics resulting from a shared ancestry. Porifera Sponges No true tissues Mostly marine, aquatic Asymmetric 2 germ layers (endoderm and ectoderm) No coelom Sessile Sessile At...