Sexual reproduction
... cnidarians, flatworms, annelids and echinoderms): single parent give rise to offspring that are identical to the parent. ...
... cnidarians, flatworms, annelids and echinoderms): single parent give rise to offspring that are identical to the parent. ...
Sexual reproduction
... cnidarians, flatworms, annelids and echinoderms): single parent gives rise to offspring that are identical to the parent. ...
... cnidarians, flatworms, annelids and echinoderms): single parent gives rise to offspring that are identical to the parent. ...
7 Notes (Kingdom Fungi).
... Asexual reproduction: Fungi simply make haploid spores that are carried away by the wind and germinate elsewhere. Spores are formed in the tips of hyphae. Sexual reproduction: Most fungi have a set of genes that determine one of two ‘mating types.’ Fungi of one mating type or the other are virtuall ...
... Asexual reproduction: Fungi simply make haploid spores that are carried away by the wind and germinate elsewhere. Spores are formed in the tips of hyphae. Sexual reproduction: Most fungi have a set of genes that determine one of two ‘mating types.’ Fungi of one mating type or the other are virtuall ...
VIII. INTERNAL ENVIRONMENT REGULATION, cont
... Carrying Capacity is met Limiting factors may be described as Density-Dependent Density-Independent ...
... Carrying Capacity is met Limiting factors may be described as Density-Dependent Density-Independent ...
Chapter 3 - CHICKEN ANATOMY AND PHYSIOLOGY
... alveoli. Because alveoli have only one opening, air can flow into and out of them, but it can not flow through them to the outside of a lung. In comparison, the avian lung has parabronchi which are continuous tubes allowing air to pass through the lung in one direction. They are laced with blood cap ...
... alveoli. Because alveoli have only one opening, air can flow into and out of them, but it can not flow through them to the outside of a lung. In comparison, the avian lung has parabronchi which are continuous tubes allowing air to pass through the lung in one direction. They are laced with blood cap ...
Classifying living things helps us understand the diversity of life.
... The Five-Kingdom Model of Living Things As scientists learned more about the internal and external structures of organisms, they discovered that some organisms were like both plants and animals. Others didn’t have the characteristics of either plants or animals. Modern scientists realized that ther ...
... The Five-Kingdom Model of Living Things As scientists learned more about the internal and external structures of organisms, they discovered that some organisms were like both plants and animals. Others didn’t have the characteristics of either plants or animals. Modern scientists realized that ther ...
Unit 2 Key areas
... 7. state that all gametes contain half the number of chromosomes as body cells. This is called the haploid number. 8. describe the process of fertilisation in mammals. 9. describe the process of pollination and fertilisation in plants. 10. state how the diploid number is restored at fertilisation. 1 ...
... 7. state that all gametes contain half the number of chromosomes as body cells. This is called the haploid number. 8. describe the process of fertilisation in mammals. 9. describe the process of pollination and fertilisation in plants. 10. state how the diploid number is restored at fertilisation. 1 ...
Annelid Review - Biology Junction
... Which of the following is/are TRUE about Earthworm RESPIRATION? A. Earthworms use nephridia for gas exchange. B. Earthworms need to stay moist to allow gases to diffuse through their skin. C. Earthworms have no specialized respiratory organs. D. Earthworms have lungs like we do for gas exchange. ...
... Which of the following is/are TRUE about Earthworm RESPIRATION? A. Earthworms use nephridia for gas exchange. B. Earthworms need to stay moist to allow gases to diffuse through their skin. C. Earthworms have no specialized respiratory organs. D. Earthworms have lungs like we do for gas exchange. ...
File - Biology @ Aldenham School
... cell walls made of chitin; they feed by extracellular secretion of digestive enzymes onto food and absorption of the organic products; this is known as saprotrophic nutrition; they may store carbohydrate as glycogen. Examples include Mucor, which has the typical fungal hyphal structure, and yeast wh ...
... cell walls made of chitin; they feed by extracellular secretion of digestive enzymes onto food and absorption of the organic products; this is known as saprotrophic nutrition; they may store carbohydrate as glycogen. Examples include Mucor, which has the typical fungal hyphal structure, and yeast wh ...
Classifying Living Things
... 1. Obtain a set of organism cards from the instructor 2. Record the card number, organism name, cellular structure, habitat, reproduction method, and the description of the organism. 3. Use the ‘Key to the Kingdom’s of Life’ to determine exactly which kingdom the organism on the first card belongs. ...
... 1. Obtain a set of organism cards from the instructor 2. Record the card number, organism name, cellular structure, habitat, reproduction method, and the description of the organism. 3. Use the ‘Key to the Kingdom’s of Life’ to determine exactly which kingdom the organism on the first card belongs. ...
9. External Anatomy
... Read Biology a Guide to the Natural World Chapter 25 INTRODUCTION Animalia is the kingdom that we are most familiar with and includes organisms such as humans, dogs, whales, and reptiles (plus much more). In this exercise, you will study the anatomy of a fetal pig, which is similar to human’s organs ...
... Read Biology a Guide to the Natural World Chapter 25 INTRODUCTION Animalia is the kingdom that we are most familiar with and includes organisms such as humans, dogs, whales, and reptiles (plus much more). In this exercise, you will study the anatomy of a fetal pig, which is similar to human’s organs ...
- Boardworks
... Growth as a permanent increase in size and dry mass by an increase in cell number or cell size or both Movement as an action by an organism or part of an organism causing a change of position or place 2. Classification and diversity of living organisms 2.1 Concept and use of a classificatory system ...
... Growth as a permanent increase in size and dry mass by an increase in cell number or cell size or both Movement as an action by an organism or part of an organism causing a change of position or place 2. Classification and diversity of living organisms 2.1 Concept and use of a classificatory system ...
Parasitology Glossary
... Reproduction by division of an individual into two individuals each a duplicate of the other. Division by which two equal and similar individuals are formed e.g. amoeba (Entamoeba histolytica). Division may be transverse, e.g. ciliates (Balantidium coli) or longitudinal e.g. flagellates (Trypanosoma ...
... Reproduction by division of an individual into two individuals each a duplicate of the other. Division by which two equal and similar individuals are formed e.g. amoeba (Entamoeba histolytica). Division may be transverse, e.g. ciliates (Balantidium coli) or longitudinal e.g. flagellates (Trypanosoma ...
Circulatory System (Transport)
... Taxonomy, simply stated, is the practice and science of classifying organisms arranged into a hierarchical structure. Each level of the classification system places species into groups based on their shared common features while separating groups of species because of their differences. For instance ...
... Taxonomy, simply stated, is the practice and science of classifying organisms arranged into a hierarchical structure. Each level of the classification system places species into groups based on their shared common features while separating groups of species because of their differences. For instance ...
Section 2
... • A tissue is a group of similar cells, held together by cell junctions, that perform a common function. • Organs are composed of more than one type of tissue and are specialized for a certain function. • Organs working together create organ systems. • Multicellularity and cell specialization have e ...
... • A tissue is a group of similar cells, held together by cell junctions, that perform a common function. • Organs are composed of more than one type of tissue and are specialized for a certain function. • Organs working together create organ systems. • Multicellularity and cell specialization have e ...
4 Chapter
... One of the recent systems of Taxonomy, which is suggested by R.Whittaker, depends on classifying the living organisms into five kingdoms (instead of two). ...
... One of the recent systems of Taxonomy, which is suggested by R.Whittaker, depends on classifying the living organisms into five kingdoms (instead of two). ...
Structure and Function in Living Things
... The importance Prokaryotic cells reproduce asexually by splitting in two. Asexual of sexual reproduction does not allow for genetic variation unless a mutation reproduction occurs. Organisms that reproduce sexually produce more genetic variation among their offspring. You may recall that chromosomes ...
... The importance Prokaryotic cells reproduce asexually by splitting in two. Asexual of sexual reproduction does not allow for genetic variation unless a mutation reproduction occurs. Organisms that reproduce sexually produce more genetic variation among their offspring. You may recall that chromosomes ...
Second Semester Exam Review Topics – Genetics/Inheritance
... Second Semester Exam Review Topics – Convergent Evolution Organisms that live in similar Niches tend to possess similar adaptations. This is called “Convergent” because different groups become alike. ...
... Second Semester Exam Review Topics – Convergent Evolution Organisms that live in similar Niches tend to possess similar adaptations. This is called “Convergent” because different groups become alike. ...
Biology lecture # 1 Levels of Life (From Atom to Biosphere)
... WHAT IS LIFE? Anything is living if: It can acquire energy from the environment, e.g., plants acquire energy using sunlight and carbon dioxide and animals gain energy by eating plants like goats eat plants. It is capable of reproducing itself, e.g., all animals produce young ones like lions produce ...
... WHAT IS LIFE? Anything is living if: It can acquire energy from the environment, e.g., plants acquire energy using sunlight and carbon dioxide and animals gain energy by eating plants like goats eat plants. It is capable of reproducing itself, e.g., all animals produce young ones like lions produce ...
CLASSIFICATION
... Something classified as living needs nutrition and water, and is able to move by itself, reproduce, exchange gases, grow, respond to stimuli and produce wastes. If something doesn’t have these characteristics, it would seem logical to assume that the thing is non-living. But, what about something th ...
... Something classified as living needs nutrition and water, and is able to move by itself, reproduce, exchange gases, grow, respond to stimuli and produce wastes. If something doesn’t have these characteristics, it would seem logical to assume that the thing is non-living. But, what about something th ...
The Cnidarians and Flatworms Laboratory
... the adult stage) and do not have a digestive system. The tapeworm’s scolex (headregion) has an assortment of hooks or suckers for attachment to the final host’s small intestine. The remaining body is divided into segments known as proglottids. Each proglottid is a monoecious reproductive machine cap ...
... the adult stage) and do not have a digestive system. The tapeworm’s scolex (headregion) has an assortment of hooks or suckers for attachment to the final host’s small intestine. The remaining body is divided into segments known as proglottids. Each proglottid is a monoecious reproductive machine cap ...
The Living World
... In some reptiles, sex is determined by environmental changes In mammals, it is determined early in embryonic development Embryonic gonads are indifferent Y chromosome converts them to testes Responsible gene is SRY Sex-determining region of the Y chromosome Copyright ©The McGraw-Hill Companies, Inc. ...
... In some reptiles, sex is determined by environmental changes In mammals, it is determined early in embryonic development Embryonic gonads are indifferent Y chromosome converts them to testes Responsible gene is SRY Sex-determining region of the Y chromosome Copyright ©The McGraw-Hill Companies, Inc. ...
Sex
Organisms of many species are specialized into male and female varieties, each known as a sex. Sexual reproduction involves the combining and mixing of genetic traits: specialized cells known as gametes combine to form offspring that inherit traits from each parent. Gametes can be identical in form and function (known as isogamy), but in many cases an asymmetry has evolved such that two sex-specific types of gametes (heterogametes) exist (known as anisogamy). By definition, male gametes are small, motile, and optimized to transport their genetic information over a distance, while female gametes are large, non-motile and contain the nutrients necessary for the early development of the young organism. Among humans and other mammals, males typically carry XY chromosomes, whereas females typically carry XX chromosomes, which are a part of the XY sex-determination system. Other animals have a sex-determination system as well, such as the ZW sex-determination system in birds, and the X0 sex-determination system in insects. The gametes produced by an organism are determined by its sex: males produce male gametes (spermatozoa, or sperm, in animals; pollen in plants) while females produce female gametes (ova, or egg cells); individual organisms which produce both male and female gametes are termed hermaphroditic. Frequently, physical differences are associated with the different sexes of an organism; these sexual dimorphisms can reflect the different reproductive pressures the sexes experience.