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... 11) The umbilical region of the human is on the ________ surface, and the umbilical region of the dog is on the ________ surface. A) posterior, superior B) anterior, inferior C) posterior, inferior D) anterior, superior ...
... 11) The umbilical region of the human is on the ________ surface, and the umbilical region of the dog is on the ________ surface. A) posterior, superior B) anterior, inferior C) posterior, inferior D) anterior, superior ...
Cells and human reproduction
... At puberty, our body begins to secrete more sex hormones. This causes body changes that show important male and female characteristics which are called secondary sexual characteristics. ...
... At puberty, our body begins to secrete more sex hormones. This causes body changes that show important male and female characteristics which are called secondary sexual characteristics. ...
Animal Development, Organogenesis, and Animal Tissues
... Early development: Fertilization and early cleavage Development in a multiceullar organism begins with the fusion of male and female gametes. When egg and sperm come into contact, their haploid nuclei fuse, to form one diploid cell called a zygote. The zygote rapidly begins the process of mitosis wh ...
... Early development: Fertilization and early cleavage Development in a multiceullar organism begins with the fusion of male and female gametes. When egg and sperm come into contact, their haploid nuclei fuse, to form one diploid cell called a zygote. The zygote rapidly begins the process of mitosis wh ...
Necessities for Life and Body Regions
... same in humans, the term dorsal specifically refers to an animal's back. Thus, the dorsal surface of four-legged animals is their superior surface. ...
... same in humans, the term dorsal specifically refers to an animal's back. Thus, the dorsal surface of four-legged animals is their superior surface. ...
Adaptations of the Sandworm
... Polychaeta, comprised of more than 8,000 species that are mainly marine ranging in size from a few millimeters to more than 3 meters. They possess either paired, lateral appendages called parapodia bearing numerous setae or by numerous anterior tentacles. Most possess a distinct head. The species of ...
... Polychaeta, comprised of more than 8,000 species that are mainly marine ranging in size from a few millimeters to more than 3 meters. They possess either paired, lateral appendages called parapodia bearing numerous setae or by numerous anterior tentacles. Most possess a distinct head. The species of ...
Laboratory Exercise 20: Embryology and Fetology
... As the embryo passes its 8th week, it is called a fetus. The placenta becomes fully functional by this time. The placenta, a vascular organ formed by the chorion, the embryonic part of the placenta and the decidua basalis, the maternal part of the placenta. The decidua basalis is the endometrium of ...
... As the embryo passes its 8th week, it is called a fetus. The placenta becomes fully functional by this time. The placenta, a vascular organ formed by the chorion, the embryonic part of the placenta and the decidua basalis, the maternal part of the placenta. The decidua basalis is the endometrium of ...
Kingsborough Community College of the City University of New York
... a. has a way of sensing important aspects of itself b. self-repairs c. circulates important fluids d. has a complex structure ...
... a. has a way of sensing important aspects of itself b. self-repairs c. circulates important fluids d. has a complex structure ...
lesson-1-explore-page-217-inheritance-and-traits
... Inherited traits are part of an organism’s phenotype. The phenotype of a trait is how the trait appears, or is expressed. Phenotypes result from the interaction of an organism’s genes and its environment. Light, temperature, moisture, nutrients, and social factors are not constant, but these ...
... Inherited traits are part of an organism’s phenotype. The phenotype of a trait is how the trait appears, or is expressed. Phenotypes result from the interaction of an organism’s genes and its environment. Light, temperature, moisture, nutrients, and social factors are not constant, but these ...
Chapter 6 – Vertebrates ()
... 1. They are a subphylum under the Phylum Chordata. This means they possess a dorsal nerve cord, notochord, and gill slits at the embryo stage. 2. Vertebrates are the most numerous (95%) and most complex of all chordates. 3. Possess a backbone which replaces the notochord and protects the nerve c ...
... 1. They are a subphylum under the Phylum Chordata. This means they possess a dorsal nerve cord, notochord, and gill slits at the embryo stage. 2. Vertebrates are the most numerous (95%) and most complex of all chordates. 3. Possess a backbone which replaces the notochord and protects the nerve c ...
1. What is true of all fungi? They are a. eukaryotic, heterotrophic
... a. spiral and indeterminate cleavage, coelom forms as split in solid mass of mesoderm b. spiral and determinate cleavage, blastopore becomes mouth, schizocoelous development c. spiral and determinate cleavage, enterocoelous development d. radial and determinate cleavage, enterocoelous development, b ...
... a. spiral and indeterminate cleavage, coelom forms as split in solid mass of mesoderm b. spiral and determinate cleavage, blastopore becomes mouth, schizocoelous development c. spiral and determinate cleavage, enterocoelous development d. radial and determinate cleavage, enterocoelous development, b ...
Dogfish Shark Dissection
... Urogenital Anatomy of the Dogfish Shark • The kidneys are flattened, ribbon-like, darkly ...
... Urogenital Anatomy of the Dogfish Shark • The kidneys are flattened, ribbon-like, darkly ...
Introduction To Animals
... become specialized during development. 4.) Movement - most animals move about their environment. - movement results from the interrelationship of two types of tissue found only in animals: Nervous tissue & Muscle tissue. Neurons – cells of nervous tissue that conduct electrical signals throughout an ...
... become specialized during development. 4.) Movement - most animals move about their environment. - movement results from the interrelationship of two types of tissue found only in animals: Nervous tissue & Muscle tissue. Neurons – cells of nervous tissue that conduct electrical signals throughout an ...
CHAPTER 3 STUDY GUIDE: ANIMAL ARCHITECTURE
... 1. Unicellular protozoan groups are the simplest animal-like organisms. a. W ithin the cell, they perform all basic functions. b. Diversity is achieved by varying architectural patterns of subcellular structures, organelles and the whole cell. 2. Metazoa are multicellular animals. a. Cells become sp ...
... 1. Unicellular protozoan groups are the simplest animal-like organisms. a. W ithin the cell, they perform all basic functions. b. Diversity is achieved by varying architectural patterns of subcellular structures, organelles and the whole cell. 2. Metazoa are multicellular animals. a. Cells become sp ...
Annelida
... nephridia are excretory organs. They are located in all segments but the first three and last one. These release excretions through ventral pores ...
... nephridia are excretory organs. They are located in all segments but the first three and last one. These release excretions through ventral pores ...
Lecture2
... forming bones The first 4 days are a time of dramatic change. Mistakes sometimes occur in this process. If it is a serious mistake, the defect is lethal and the embryo dies. In the incubation process, these mistakes cause "early deads." If the biological mistake is not as serious, the embryo may dev ...
... forming bones The first 4 days are a time of dramatic change. Mistakes sometimes occur in this process. If it is a serious mistake, the defect is lethal and the embryo dies. In the incubation process, these mistakes cause "early deads." If the biological mistake is not as serious, the embryo may dev ...
Survey of the Phyla
... because they lack segmentation or from an annelid like ancestor as they both have trochophore larva. Most have open circulatory systems with a heart. Structures for gas exchange. Ventral nerve chords with sensory organs. Class Polyplacophora-This class includes chitons. They have an oval shape with ...
... because they lack segmentation or from an annelid like ancestor as they both have trochophore larva. Most have open circulatory systems with a heart. Structures for gas exchange. Ventral nerve chords with sensory organs. Class Polyplacophora-This class includes chitons. They have an oval shape with ...
The Kingdom Animalia is in the domain Eukarya and in the
... because they lack segmentation or from an annelid like ancestor as they both have trochophore larva. Most have open circulatory systems with a heart. Structures for gas exchange. Ventral nerve chords with sensory organs. Class Polyplacophora-This class includes chitons. They have an oval shape with ...
... because they lack segmentation or from an annelid like ancestor as they both have trochophore larva. Most have open circulatory systems with a heart. Structures for gas exchange. Ventral nerve chords with sensory organs. Class Polyplacophora-This class includes chitons. They have an oval shape with ...
Chapter 24
... • When the blastula reaches several hundred cells, gastrulation occurs • In this stage, the cells on one side of the blastula push in and form a two-layered embryo called the gastrula ...
... • When the blastula reaches several hundred cells, gastrulation occurs • In this stage, the cells on one side of the blastula push in and form a two-layered embryo called the gastrula ...
Homeobox genes
... The body plan of the drosophila fly is controlled by the homebox genes. These contain transcription factors that regulate other genes so that the body plan develops normally. Transcription factors act like on/off switches for gene expression. Some of these genes are maternal-effect genes. They will ...
... The body plan of the drosophila fly is controlled by the homebox genes. These contain transcription factors that regulate other genes so that the body plan develops normally. Transcription factors act like on/off switches for gene expression. Some of these genes are maternal-effect genes. They will ...
Teacher notes and student sheets
... Preimplantation Genetic Diagnosis; when the fertilised egg has divided to an embryo of about 8 cells one of these can be removed without harming development. The DNA in this cell can then be replicated and tested for specific defects. If a defect is found the embryo is discarded, those without the d ...
... Preimplantation Genetic Diagnosis; when the fertilised egg has divided to an embryo of about 8 cells one of these can be removed without harming development. The DNA in this cell can then be replicated and tested for specific defects. If a defect is found the embryo is discarded, those without the d ...
Fish Dissection
... flexible rod Helps organize developing cells in embryo Replaced by spinal cord in most vertebrates ...
... flexible rod Helps organize developing cells in embryo Replaced by spinal cord in most vertebrates ...
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JimmyPFA_Chromosomes_and_Genes_Justified_TF[1].
... which are found in DNA, which are found in the cell’s nucleus. You get 2 of the same types of genes (one from mother and 1 from father) but only 1 will be used. You get 23 from your mother and 23 from your father and this equals 46. ...
... which are found in DNA, which are found in the cell’s nucleus. You get 2 of the same types of genes (one from mother and 1 from father) but only 1 will be used. You get 23 from your mother and 23 from your father and this equals 46. ...
Phylum Annelida - Mr. Lesiuk
... – Muscular pharynx sucks food through mouth then pushes it down to the esophagus and crop (storage) to a grinding organ (gizzard) then onto the intestine. – Blood transports nutrients digested in intestine – Wastes pass out anus ...
... – Muscular pharynx sucks food through mouth then pushes it down to the esophagus and crop (storage) to a grinding organ (gizzard) then onto the intestine. – Blood transports nutrients digested in intestine – Wastes pass out anus ...