What is a cell? - Epiphany Catholic School
... • controls materials moving into and out of the cell. • cytoplasm - region inside the cell that includes the fluid and all the organelles except for the nucleus. • organelle - small body in the cytoplasm • specialized to perform a specific function • DNA (deoxyribonucleic acid)- genetic material tha ...
... • controls materials moving into and out of the cell. • cytoplasm - region inside the cell that includes the fluid and all the organelles except for the nucleus. • organelle - small body in the cytoplasm • specialized to perform a specific function • DNA (deoxyribonucleic acid)- genetic material tha ...
Topic 1 - Basic Biological Principles
... • Cells form tissues, a group of similar cells that share a structure and function • Animals are made up of four basic tissue types – Epithelial: skin, inner lining of esophagus & gut – Connective: bone, cartilage, loose (between organs), dense (ligaments/tendons), blood, adipose (fat) – Muscle: smo ...
... • Cells form tissues, a group of similar cells that share a structure and function • Animals are made up of four basic tissue types – Epithelial: skin, inner lining of esophagus & gut – Connective: bone, cartilage, loose (between organs), dense (ligaments/tendons), blood, adipose (fat) – Muscle: smo ...
Obelia
... zooid closed at the distal end and are developed on full-grown hydrocauli, generally on their lower parts. They arise as buds in the axils of some of the branches that bear polyps. Blastosytle lacks mouth, manubrium and tantacles. Protective Covering: The blastostyle is enclosed in a clubshaped ex ...
... zooid closed at the distal end and are developed on full-grown hydrocauli, generally on their lower parts. They arise as buds in the axils of some of the branches that bear polyps. Blastosytle lacks mouth, manubrium and tantacles. Protective Covering: The blastostyle is enclosed in a clubshaped ex ...
STAAR Review Day Five Independent Practice 3. In humans, the
... STAAR Review Day Five Independent Practice 1. Cells of the epithelial tissue are packed closely together in layers. How do epithelial cells protect organs within the human body? a. Epithelial cells fight invading bacteria and viruses by entering them and destroying their DNA b. Epithelial cells prov ...
... STAAR Review Day Five Independent Practice 1. Cells of the epithelial tissue are packed closely together in layers. How do epithelial cells protect organs within the human body? a. Epithelial cells fight invading bacteria and viruses by entering them and destroying their DNA b. Epithelial cells prov ...
Glossary of Stem Cell Terms
... Germ layers The endoderm, mesoderm and ectoderm; the three precursory tissue layers of the early, primitive embryo (which form at approximately two weeks in the human) that give rise to all tissues of the body. Hematopoietic stem cell The precursors of mature blood cells that are defined by their a ...
... Germ layers The endoderm, mesoderm and ectoderm; the three precursory tissue layers of the early, primitive embryo (which form at approximately two weeks in the human) that give rise to all tissues of the body. Hematopoietic stem cell The precursors of mature blood cells that are defined by their a ...
Bioscience Integumentary system project
... An easier way to think of it is like there bones holding your body up and in place ...
... An easier way to think of it is like there bones holding your body up and in place ...
The respiratory system - Spark (e
... exchange of oxygen and carbon dioxide between an organism and the environment. The respiration takes place in the respiratory organs called lungs. The passage of air into the lungs to supply the body with oxygen is known as inhalation and the passage of air out of the lungs to expel carbon dioxide i ...
... exchange of oxygen and carbon dioxide between an organism and the environment. The respiration takes place in the respiratory organs called lungs. The passage of air into the lungs to supply the body with oxygen is known as inhalation and the passage of air out of the lungs to expel carbon dioxide i ...
Chapter 34-Introduction to Animals-B
... (4) On mammals and birds, the head is positioned higher with respect to the body than it is on amphibians and reptiles. Why do you suppose it may be evolutionary advantageous to have a head positioned OVER the body? ...
... (4) On mammals and birds, the head is positioned higher with respect to the body than it is on amphibians and reptiles. Why do you suppose it may be evolutionary advantageous to have a head positioned OVER the body? ...
PORIFERA _ CNIDARIA - Doral Academy Preparatory
... Origins of Multicellularity • Multicellular organisms first appeared 600 million years ago • Arose quickly 100 million years prior to the cambrian period • Two hypothesis on the origin of multicellularity – Colonial hypothesis- cells of a dividing protist remained together, cell invagination formed ...
... Origins of Multicellularity • Multicellular organisms first appeared 600 million years ago • Arose quickly 100 million years prior to the cambrian period • Two hypothesis on the origin of multicellularity – Colonial hypothesis- cells of a dividing protist remained together, cell invagination formed ...
I. Structure - Biology Diva
... A. Not organized into tissues, has masses of specialized cells embedded in a gel-like substance called mesoglea, has cell recognition B. Asymmetrical C. Ostia – tiny openings (pores) in the body wall through which water enters D. Oscula – larger body opening through which water exits removing waste ...
... A. Not organized into tissues, has masses of specialized cells embedded in a gel-like substance called mesoglea, has cell recognition B. Asymmetrical C. Ostia – tiny openings (pores) in the body wall through which water enters D. Oscula – larger body opening through which water exits removing waste ...
Name - TeacherWeb
... Where does gas exchange take place in lungs? _____________________________________ What 2 gases are exchanged? _____________________________________________________ 4.5 Explain how the muscular/skeletal system (skeletal, smooth and cardiac muscle, bones, cartilage, ligaments, tendons) works with oth ...
... Where does gas exchange take place in lungs? _____________________________________ What 2 gases are exchanged? _____________________________________________________ 4.5 Explain how the muscular/skeletal system (skeletal, smooth and cardiac muscle, bones, cartilage, ligaments, tendons) works with oth ...
Primary embryonic germ layers
... allows movement of organs within the body, esp. gut expansion & motility ...
... allows movement of organs within the body, esp. gut expansion & motility ...
Zoology Chapter 8-9: Introduction to Animals Review for Test List the
... and a tail that is located at the _____posterior_________________________ end of their body. 11. In an animal that is bilaterally symmetrical, which of the two halves mirror each other? ______left and right_______________________________________ 12. What do you call a fertilized egg? _____________zy ...
... and a tail that is located at the _____posterior_________________________ end of their body. 11. In an animal that is bilaterally symmetrical, which of the two halves mirror each other? ______left and right_______________________________________ 12. What do you call a fertilized egg? _____________zy ...
Zoology Chapter 8-‐9: Introduction to Animals Review for Test
... openings, so food enters one opening and exits another 27. ___integumentary_________________________________: body system consisting of skin, scales, or feathers 28. ____digestive________________________________: body system th ...
... openings, so food enters one opening and exits another 27. ___integumentary_________________________________: body system consisting of skin, scales, or feathers 28. ____digestive________________________________: body system th ...
Tissues: Living Communities
... Cytoplasm continuous between cells Linked by tubular channel proteins called _______________. Allow exchange of ions, nutrients, and transport signals Ex: Cardiac muscle ...
... Cytoplasm continuous between cells Linked by tubular channel proteins called _______________. Allow exchange of ions, nutrients, and transport signals Ex: Cardiac muscle ...
DEVELOPMENT OF MESODERM,
... Thin plate of mesoderm located along the lateral side of embryo. Large spaces develop in the lateral plate mesoderm and coalesce to form intraembryonic coelom Intraembryonic coelom divides lateral mesoderm into: Intraembryonic somatic mesoderm Intraembryonic visceral mesoderm SOMITOGENESIS ...
... Thin plate of mesoderm located along the lateral side of embryo. Large spaces develop in the lateral plate mesoderm and coalesce to form intraembryonic coelom Intraembryonic coelom divides lateral mesoderm into: Intraembryonic somatic mesoderm Intraembryonic visceral mesoderm SOMITOGENESIS ...
Multicellular Organisms National 5 Biology Overview Multicellular
... and contain lignin for support. Water is required for transporting materials and for photosynthesis. iii. The process of transpiration. iv Sugar is transported up and down the plant in living phloem. Structure of phloem tissue. b. Animal transport and exchange systems i. In mammals, nutrients, oxyge ...
... and contain lignin for support. Water is required for transporting materials and for photosynthesis. iii. The process of transpiration. iv Sugar is transported up and down the plant in living phloem. Structure of phloem tissue. b. Animal transport and exchange systems i. In mammals, nutrients, oxyge ...
7-Levels of Organization lesson 7
... • Epithelial• Covers the body surfaces and lines internal structures • Examples-skin and blood vessels ...
... • Epithelial• Covers the body surfaces and lines internal structures • Examples-skin and blood vessels ...
Name - Humble ISD
... Vitamin Production – The skin produces Vitamin _D__, needed for _strong bones__, when exposed to _sunlight__. II. Structure – The skin is composed of three layers: A. Epidermis 1. Basal Layer – Contains cells that are actively going through _mitosis_______. As new cells are produced, older cells a ...
... Vitamin Production – The skin produces Vitamin _D__, needed for _strong bones__, when exposed to _sunlight__. II. Structure – The skin is composed of three layers: A. Epidermis 1. Basal Layer – Contains cells that are actively going through _mitosis_______. As new cells are produced, older cells a ...
uterine tube
... is usually prominent. The perimetrium covers the entire posterior surface of the uterus but only part of the anterior surface. The remaining part of the anterior surface consists of connective tissue or adventitia. Both myometrium and endometrium undergo cyclic changes each month to prepare the ut ...
... is usually prominent. The perimetrium covers the entire posterior surface of the uterus but only part of the anterior surface. The remaining part of the anterior surface consists of connective tissue or adventitia. Both myometrium and endometrium undergo cyclic changes each month to prepare the ut ...
Chapter 29 - Palm Beach State College
... – Replace the original hypoblast with a layer called endoderm ...
... – Replace the original hypoblast with a layer called endoderm ...
Name Date ______ Midterm.Review.Fill
... 6. Mitosis is possible because ___________is a self-replicating molecule. It can zip down the middle and produce complementary copies of each side. 7. The DNA molecule is called a ___________________________. It looks like a twisted ladder or a spiral staircase. 8. Each rung of the “ladder” is made ...
... 6. Mitosis is possible because ___________is a self-replicating molecule. It can zip down the middle and produce complementary copies of each side. 7. The DNA molecule is called a ___________________________. It looks like a twisted ladder or a spiral staircase. 8. Each rung of the “ladder” is made ...
UNIT 2 CELLS AND SYSTEMS
... can obtain energy from wide variety of foods – cells specialize and can do jobs more effectively Cells of organisms are organized into tissues – main types in animals – muscle – epithelial (skin and also covers internal structures such as intestines) – connective (connects and supports ex. bone, blo ...
... can obtain energy from wide variety of foods – cells specialize and can do jobs more effectively Cells of organisms are organized into tissues – main types in animals – muscle – epithelial (skin and also covers internal structures such as intestines) – connective (connects and supports ex. bone, blo ...
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.