the physical form of cells and organisms is often influenced
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- Water serves as a reactant and a product in the carbon cycle. Discuss the role of water in the carbon cycle. c. Discuss the impact of one human activity on the water cycle. 2. 2002B:3 The physical form of cells and organisms is often influenced by special structural polymers.he bonding of two amino acid molecules to form a larger molecule requires a. the release of a water molecule b. the release of a carbon dioxide molecule c. the addition of a nitrogen atom d. the addition of a water molecule e. an increase in activation energy 9.
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- Change and Isolation. Environmental change and isolation of groups of organisms play an important role in evolution. Environmental change is any change in an environment to which an organism must adapt. Change can be gradual, such as when mountains or deserts form, other species die out, or new species evolve.
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- Organisms change in response to conditions in their environment. The environment consists of the interactions among plants, animals, soil, water, temperature, light, and other living and non-living things. The word environment is used to talk about many things.
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Environmental Influences on Gene Expression The presence of drugs or chemicals in an organism's environment can also influence gene expression in the organism. Cyclops fish are a dramatic example of the way in which an environmental chemical can affect development.
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- In biology, adaptation is the process by which an organism changes  to become better suited to survive in their environment.It can  also refer to a physical or genetic trai … t that helps an organism to  be better suited to survive in their environment.ithin a population of animals there are variations and differences. So when an environmental change occurs those animals that are better suited to that environment survive a … nd are able to reproduce sucessfully.
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Cell theory Multicellular organisms show emergent properties. For example: cells form tissues, tissues form organs, organs form organ systems and organ systems form multicellular organisms. The idea is that the whole is greater than the composition of its parts. For example your lungs are made of many cells.ulticellular organisms (example: humans) are composed of many cells while unicellular organisms (example: bacteria) are composed of only one cell. Cells are the basic unit of structure in all organisms.
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Evolution Evolution influences every aspect of the form and behaviour of organisms. Most prominent are the specific behavioural and physical adaptations that are the outcome of natural selection. These adaptations increase fitness by aiding activities such as finding food, avoiding predators or attracting mates.
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- Mutations. Mutation is a change in DNA, the hereditary material of life. An organism's DNA affects how it looks, how it behaves, and its physiology  all aspects of its life.So a change in an organism's DNA can cause changes in all aspects of its life. Mutations are random.utation is a change in DNA, the hereditary material of life. An organism's DNA affects how it looks, how it behaves, and its physiology  all aspects of its life. So a change in an organism's DNA can cause changes in all aspects of its life.
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- Chapter Summary. Everything that affects an organism during its lifetime is collectively known as its environment. The environment of an organism can be divided into biotic (living) and abiotic (nonliving or physical) components.The space an organism occupies is known as its habitat, and the role it plays in its environment is known as its niche.The niche of an organism is the result of natural selection directing the adaptation of the organism to a specific set of environmental conditions.hapter Summary. Everything that affects an organism during its lifetime is collectively known as its environment. The environment of an organism can be divided into biotic (living) and abiotic (nonliving or physical) components.
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12 Most Important Effects of Temperature on Living Organisms Temperature has been found to affect the living organisms in various ways, for example it has significant role on the cells, mor­phology, Physiology, behaviour, growth, ontogenetic development and distribution of plants and animals. Some of well-studied effects of temperature on living organisms are following:
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-   Chemical principles are important in modern cell biology because all living cells are made up of chemicals and many chemical processes occur in various living organisms. … Chemistry is the one science in which all the other sciences are based.
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- 1 Changes in environmental conditions can affect the c. survival of individual organisms as well as entire species. ( 2 NOAA 1c). 3  Evidence indicates that changes in many physical and biological f. systems are linked to human caused warming.
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Evidence for Evolution Since Darwin's day, science has made astounding advances in the ways in which it can study organisms. One of the most useful advances has been the development of molecular biology. In this field, scientists look at the proteins and other molecules that control life processes. While these molecules can evolve just as an entire organism can, some important molecules are highly conserved among species.
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Abiotic component In biology, abiotic factors can include water, light, radiation, temperature, humidity, atmosphere, and soil. The macroscopic climate often influences each of the above. Pressure and sound waves may also be considered in the context of marine or sub-terrestrial environments.
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- Organisms can consist of one cell to many cells: Simple organisms may be unicellular (consist of one cell) Complex organisms are multicellular(consist of many cells) There are advantages to being multicellular rather than unicellular. These include allowing: The organism to be larger; Cell differentiation (having different types of cells with different functions) The organisms to be more complex
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8 factors that influence the Growth and Development of an Organism Jay Prakash. Advertisements: There are several factors which directly or indirectly influence the growth and development of an organism. There are as follows: (i) Heredity, (ii) Environment, (iii) Sex, (iv) Nutrition, (v) Races, (vi) Exercise, (vii) Hormones, (viii) Learning and Reinforcement.
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- 1 You actually have a tremendous amount of control over how your genetic traits are expressed, by changing your thoughts and altering your diet and your environment. 2  In 1988, the experiments of John Cairns demonstrated even primitive organisms can evolve “consciously,” as DNA changes in response to its environment.
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- 1 Trait: a characteristic of an organism that can be the result of genes and/or influenced by the environment. 2  Traits can be physical like hair color or the shape and size of a plant leaf. 3  Traits can also be behaviors such as nest building behavior in birds.
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Heavy Metals An important process through which chemicals can affect living organisms is bioaccumulation. Bioaccumulation means an increase in the concentration of a chemical in a biological organism over time, compared to the chemical's concentration in the environment.
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- Molecular evidence: similar proteins and genes found in closely related species, even if those genes are not used by an organism.    Fossil evidence: organisms changing … form over time through the fossil record.   Direct observation of evolution: Traits in a population can be measured over time, as they change from one generation to the next, evolution occurs because that is the definition of evolution.olecular evidence: similar proteins and genes found in closely related species, even if those genes are not used by an organism.    Fossil evidence: organisms changing … form over time through the fossil record.
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- Animal and plant adaptations and behaviours. Adaptations help organisms survive in their ecological niche or habitat; adaptations can be anatomical, behavioural or physiological. Anatomical adaptations are physical features such as an animals shape.Behavioural adaptations can be inherited or learnt and include tool use, language and swarming behaviour.Physiological adaptations include the ability to make venom; but also more general functions such as temperature regulation.natomical adaptations are physical features such as an animals shape. Behavioural adaptations can be inherited or learnt and include tool use, language and swarming behaviour. Physiological adaptations include the ability to make venom; but also more general functions such as temperature regulation.
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- The solute composition of living cells has been subject to stringent natural selection. In particular, strong selective pressures for intracellular osmo- and ionoregulation exist for organisms that experience some form of environmental water or solute stress, including: 1. High, low, or fluctuating salinity.
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- All cells are made up of a semi viscous fluid called protoplasm, which is considered as the physical basis of life, for it controls all biochemical reactions of the cell. In fact it is the microcosm of life with many secrets not known to us.ll cells are made up of a semi viscous fluid called protoplasm, which is considered as the physical basis of life, for it controls all biochemical reactions of the cell. In fact it is the microcosm of life with many secrets not known to us.
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- Changing the level of gene expression—thus increasing or decreasing the amount of RNA or protein that is made from it—can influence biological processes just as dramatically. A major focus in genetic science is to examine how differences in gene expression correlate with drug response or disease risk.
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Chapter 40 - Basic Principles of Animal Form and Function Concept 40.1 Physical laws and the environment constrain animal size and shape. An animal’s size and shape, features often called “body plans” or “designs,” are fundamental aspects of form and function that significantly affect the way an animal interacts with its environment.
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- Characteristics of Living Things. 1  All organisms use energy (metabolism). 2  All organisms maintain a stable internal environment (homeostasis). 3  All organisms detect and respond to select external stimuli.  All organisms can engage in movement (which may occur internally, or even at the cellular level).