Introduction to animals
... “Second Mouth” Types of development of embryo in animals with a coelom • the blastopore develops into an anus, and a second opening at the other end of the archenteron becomes the mouth. • Undergo radial cleavage • This process of coelom formation is called enterocoely which means “gut body cavity.” ...
... “Second Mouth” Types of development of embryo in animals with a coelom • the blastopore develops into an anus, and a second opening at the other end of the archenteron becomes the mouth. • Undergo radial cleavage • This process of coelom formation is called enterocoely which means “gut body cavity.” ...
just vocab - local.brookings.k12.sd.us
... Joining of an egg & sperm outside the female’s body ____________________ External fertilization Kind of development in which development offspring hatch as larva and must Indirect ____________________ undergo metamorphosis to become adults Kind of circulatory system in which open blood is NOT contai ...
... Joining of an egg & sperm outside the female’s body ____________________ External fertilization Kind of development in which development offspring hatch as larva and must Indirect ____________________ undergo metamorphosis to become adults Kind of circulatory system in which open blood is NOT contai ...
Unit 2 Homework
... 2. Name a type of cell that can be formed when an adult human stem cell specialises. (1) 3. Describe the similarities and differences between embryonic and adult stem cells. (3) 4. Name the regions of plants where mitosis occurs. (2) 5. Construct a table to describe which of the following cells coul ...
... 2. Name a type of cell that can be formed when an adult human stem cell specialises. (1) 3. Describe the similarities and differences between embryonic and adult stem cells. (3) 4. Name the regions of plants where mitosis occurs. (2) 5. Construct a table to describe which of the following cells coul ...
nervous system
... Key Parts: Hormones – chemicals released in one part of the body, travel through the bloodstream, and affect cells in other parts Works Closely With: the nervous system which controls the release of hormones and the circulatory system to deliver them ...
... Key Parts: Hormones – chemicals released in one part of the body, travel through the bloodstream, and affect cells in other parts Works Closely With: the nervous system which controls the release of hormones and the circulatory system to deliver them ...
Cardiovascular
... External carotid artery: supplies the front & back of neck, face, meninges, middle ear, thyroid & tongue. ...
... External carotid artery: supplies the front & back of neck, face, meninges, middle ear, thyroid & tongue. ...
Levels of Organization
... Each part has a specific job to do. And as each part does its special job, it works in harmony with all the other parts. The arrangement of specialized parts within a living thing is sometimes referred to as levels of organization. Cells, of course, are the first level of organization. ...
... Each part has a specific job to do. And as each part does its special job, it works in harmony with all the other parts. The arrangement of specialized parts within a living thing is sometimes referred to as levels of organization. Cells, of course, are the first level of organization. ...
7A Cells - Uplands blogs
... What would be the problem if cells did split in half to produce new cells ? There wouldn’t be much of the cells left! What actually happens is that cells have to make new copies of the material inside them, as well as new membranes before they divide. Just before a cell divides, it appears to grow s ...
... What would be the problem if cells did split in half to produce new cells ? There wouldn’t be much of the cells left! What actually happens is that cells have to make new copies of the material inside them, as well as new membranes before they divide. Just before a cell divides, it appears to grow s ...
4.27.05 Senses - El Camino College
... • Perception is an interpretation of the meaning of sensations. • The sensation that results depends on the part of the brain receiving the impulses. • Receptors may integrate signals before sending nerve impulses. • Sensory adaptation occurs when a stimulus continues but the receptor decreases its ...
... • Perception is an interpretation of the meaning of sensations. • The sensation that results depends on the part of the brain receiving the impulses. • Receptors may integrate signals before sending nerve impulses. • Sensory adaptation occurs when a stimulus continues but the receptor decreases its ...
Zoology - Ursuline High School
... • In species that have a separate mouth and anus, the tube will eventually extend through the length of the embryo and fuse with the opposite side. • One opening will become the mouth, the other will become the anus. ...
... • In species that have a separate mouth and anus, the tube will eventually extend through the length of the embryo and fuse with the opposite side. • One opening will become the mouth, the other will become the anus. ...
Zoology
... • In species that have a separate mouth and anus, the tube will eventually extend through the length of the embryo and fuse with the opposite side. • One opening will become the mouth, the other will become the anus. ...
... • In species that have a separate mouth and anus, the tube will eventually extend through the length of the embryo and fuse with the opposite side. • One opening will become the mouth, the other will become the anus. ...
document
... In all animals except sponges, the zygote (fertilized egg cell) undergoes cell divisions that form a hollow ball of cells called a blastula. ...
... In all animals except sponges, the zygote (fertilized egg cell) undergoes cell divisions that form a hollow ball of cells called a blastula. ...
Anatomy and Histology of the Canine and Feline Eye
... Anatomy and Histology of the Canine and Feline Eye I. Overall Anatomy and Compartments of the Globe a. Anterior chamber- bounded by cornea anteriorly and iris and anterior lens surface posteriorly; filled with aqueous b. Posterior chamber- bounded anteriorly by iris, posteriorly by lens capsule and ...
... Anatomy and Histology of the Canine and Feline Eye I. Overall Anatomy and Compartments of the Globe a. Anterior chamber- bounded by cornea anteriorly and iris and anterior lens surface posteriorly; filled with aqueous b. Posterior chamber- bounded anteriorly by iris, posteriorly by lens capsule and ...
Veterinary Developmental Anatomy
... A blastocyst (or blastula) consists of a large number of blastomeres arranged to form a hollow (fluid filled) sphere/cylinder containing an inner cell mass (embryoblast) = a group of cells localized inside one pole (end) of the blastula. The surface cells of the blastocyst are designated trophoblast ...
... A blastocyst (or blastula) consists of a large number of blastomeres arranged to form a hollow (fluid filled) sphere/cylinder containing an inner cell mass (embryoblast) = a group of cells localized inside one pole (end) of the blastula. The surface cells of the blastocyst are designated trophoblast ...
1.1 Modern Cell Theory- All organisms (living things) are composed
... own kind. In time, they die. How does a cell eat? Cells take in the substances they need through their cell membrane. An animal cell gets its nourishment from what the animal eats. The blood carries the substances to the cells. A plant cell uses sunlight to make its own food. How do cells make more ...
... own kind. In time, they die. How does a cell eat? Cells take in the substances they need through their cell membrane. An animal cell gets its nourishment from what the animal eats. The blood carries the substances to the cells. A plant cell uses sunlight to make its own food. How do cells make more ...
... necessary functions such as respiration, consumption of nutrients, and expulsion of metabolic wastes to continue their existences. • As such, cells have developed specialized structures called organelles to aid them in these specific functions such as respiration and photosynthesis. • Eukaryotic cel ...
12-AXIAL SKEL(1)..
... into mesenchyme that share in the formation of the bones of the face and skull. ...
... into mesenchyme that share in the formation of the bones of the face and skull. ...
This page should automatically redirect. If nothing is
... the secondary (lobar) bronchi, one for each lobe of the lung. These bronchi, in turn, continue dividing into still smaller bronchi called Tertiary (Segmental) Bronchi, which divide into Bronchioles. The next division is into even smaller tubes called Terminal Bronchioles. This entire branching struc ...
... the secondary (lobar) bronchi, one for each lobe of the lung. These bronchi, in turn, continue dividing into still smaller bronchi called Tertiary (Segmental) Bronchi, which divide into Bronchioles. The next division is into even smaller tubes called Terminal Bronchioles. This entire branching struc ...
Animal Systems
... Function - provides frame and support for all other systems and organs Cartilage -- firm, flexible tissues that is not as hard as bone Bones Function -- attach muscles, means of movement, protect internal organs, storage of minerals, blood formation ...
... Function - provides frame and support for all other systems and organs Cartilage -- firm, flexible tissues that is not as hard as bone Bones Function -- attach muscles, means of movement, protect internal organs, storage of minerals, blood formation ...
Unit Vocabulary List
... Kidney – the organ that cleans blood and removes excess water before returning the blood to the heart Ureters – tubes leading from the kidneys to the bladder Bladder – holds urine until it is removed from the body Urethra – the tub through which urine flows out of the body Urea – waste produced by t ...
... Kidney – the organ that cleans blood and removes excess water before returning the blood to the heart Ureters – tubes leading from the kidneys to the bladder Bladder – holds urine until it is removed from the body Urethra – the tub through which urine flows out of the body Urea – waste produced by t ...
Meiosis and Sexual Reproduction
... In the space provided, write the name of the stage of meiosis that is being described. 5. The centromeres divide, and the chromatids, now called chromosomes, move to opposite poles of the cell. 6. The homologous chromosomes separate. The chromosomes of each pair are pulled to opposite poles of the ...
... In the space provided, write the name of the stage of meiosis that is being described. 5. The centromeres divide, and the chromatids, now called chromosomes, move to opposite poles of the cell. 6. The homologous chromosomes separate. The chromosomes of each pair are pulled to opposite poles of the ...
Human embryogenesis
Human embryogenesis is the process of cell division and cellular differentiation of the embryo that occurs during the early stages of development. In biological terms, human development entails growth from a one celled zygote to an adult human being. Fertilisation occurs when the sperm cell successfully enters and fuses with an egg cell (ovum). The genetic material of the sperm and egg then combine to form a single cell called a zygote and the germinal stage of prenatal development commences. Embryogenesis covers the first eight weeks of development and at the beginning of the ninth week the embryo is termed a fetus.Human embryology is the study of this development during the first eight weeks after fertilisation. The normal period of gestation (pregnancy) is nine months or 38 weeks.The germinal stage, refers to the time from fertilization, through the development of the early embryo until implantation is completed in the uterus. The germinal stage takes around 10 days.During this stage, the zygote, which is defined as an embryo because it contains a full complement of genetic material, begins to divide, in a process called cleavage. A blastocyst is then formed and implanted in the uterus. Embryogenesis continues with the next stage of gastrulation when the three germ layers of the embryo form in a process called histogenesis, and the processes of neurulation and organogenesis follow. The embryo is referred to as a fetus in the later stages of prenatal development, usually taken to be at the beginning of the ninth week. In comparison to the embryo, the fetus has more recognizable external features, and a more complete set of developing organs. The entire process of embryogenesis involves coordinated spatial and temporal changes in gene expression, cell growth and cellular differentiation. A nearly identical process occurs in other species, especially among chordates.