Charac of life w vocab #2(1)
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All living things share eight key characteristics: they are made of cells, reproduce, grow and develop, obtain and use energy, respond to their environment, and evolve over time. Reproduction can occur asexually through cell splitting or sexually through the joining of cells containing different genetic material from each parent. DNA contains the universal genetic code that is passed down from generation to generation and allows organisms to adapt to their environments through evolution.
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There are seven key characteristics of living things:
1) Living things must have cells, whether unicellular or multicellular.
2) Living things must sense and respond to changes in their environment.
3) Living things must be able to reproduce, either asexually through mitosis or sexually with genetic material from two parents.
4) Living things must have DNA which controls the activities of cells.
5) Living things must use energy through metabolic processes like ingestion, digestion, respiration, and excretion.
6) Living things must maintain homeostasis to regulate their internal environment.
7) Living things must grow and develop over their lifespans.
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There are seven key characteristics of living things:
1) Living things must have cells, whether unicellular or multicellular.
2) Living things must sense and respond to changes in their environment.
3) Living things must be able to reproduce, either asexually through mitosis or sexually with genetic material from two parents.
4) Living things must have DNA which controls the activities of cells.
5) Living things must use energy through metabolic processes like ingestion, digestion, respiration, and excretion.
6) Living things must maintain homeostasis to regulate their internal environment.
7) Living things must grow and develop over their lifespans.
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All living things share seven characteristics:
1. They are made of cells (unicellular or multicellular) and reproduce their kind (DNA passing traits to offspring).
2. They grow and develop according to their life cycles, and obtain and use energy through metabolism.
3. In response to environmental stimuli, living things maintain homeostasis through feedback mechanisms like regulating temperature.
4. Over time, living things evolve through genetic variations and adaptations that enhance survival.
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P p population growths #4(1)
This document discusses 4 key characteristics of populations: 1) geographical distribution, 2) density, 3) growth rate, and 4) factors that affect growth. It provides examples of density calculations and growth rate equations. Graphs are presented that illustrate exponential, logistic, predator-prey, and extinction population growth patterns. Key terms discussed include carrying capacity and stabilization phase.
Scientific method
The document outlines the scientific inquiry process which involves making observations, defining a problem or question, forming a hypothesis to test, conducting an experiment or field study to collect data, analyzing the results to draw conclusions, and repeating the process by asking new questions. Key steps include making observations, forming a testable hypothesis with independent and dependent variables, conducting controlled experiments, and using data to accept or reject the hypothesis.
Intro to biology
The document discusses the purpose and methods of science, including different types of scientific data and variables. It provides examples of scientific inquiry through an activity measuring the effect of exercise on heart rate. The activity guides collecting observations, forming a hypothesis, making a prediction, verifying the prediction, and drawing a conclusion.
P.p. levels of organization #5
Biology can be studied at different levels, from sub-atomic particles to entire ecosystems. At the smallest level of study are molecules like water, DNA, proteins, carbohydrates, lipids, and nucleotides. The largest system studied is the biosphere, which contains all ecosystems and can be viewed from satellites. Autotrophs are organisms that produce their own food using sunlight, while heterotrophs obtain energy from food. Adaptations are inherited traits that increase an organism's chances of survival, such as long legs, eyelashes, and fat storage.
Ecology ecosystems #1 2
This document discusses key concepts in ecology including biotic and abiotic factors, ecosystems, levels of ecological organization, biomes, niches, habitats, and relationships between organisms such as symbiosis, predator-prey interactions, parasitism, commensalism, and mutualism. Food chains and food webs are also covered, explaining how energy and matter are transferred between organisms in an ecosystem from producers to primary, secondary, and tertiary consumers. Maintaining biodiversity through complex food web interactions is important for ecosystem stability.
P p intro to biochem #1
This document provides an overview of chemistry concepts including:
1) Atoms are the basic unit of matter and are made up of protons, neutrons, and electrons. Elements are pure substances made of only one type of atom. Isotopes are atoms of the same element that have different numbers of neutrons.
2) Compounds are substances formed when two or more elements combine in definite proportions. Chemical bonds, including covalent and ionic bonds, link atoms together in molecules.
3) Water is a polar molecule that is essential for life and chemical reactions due to its solvent properties.
P p intro to organic ii #2
The document discusses the difference between organic and inorganic compounds, with organic compounds containing carbon and being produced by living things, and inorganic compounds not containing carbon and including water, oxygen, carbon dioxide, and minerals. It then focuses on important organic macromolecules that are made up of smaller subunits combined through dehydration synthesis, including carbohydrates, lipids, proteins, and nucleic acids. These four macromolecules are essential components of living things.
P p lipids wnotes #5
This document summarizes key information about lipids:
1) Lipids contain hydrogen, carbon, and oxygen and have a higher ratio of hydrogen to carbon than 2:1. They do not dissolve in water.
2) Lipids play important roles in living things by storing large amounts of energy long-term and forming cell membranes and components of hormones, venoms, and protective coatings.
3) Lipid monomers include glycerol and fatty acids. Triglycerides form through a dehydration synthesis reaction between glycerol and three fatty acid monomers and can be solid fats or liquid oils depending on saturation levels.
What is ecol #1
Ecology is the study of interactions between living organisms and their environment. It examines both biotic factors like plants, animals, and microorganisms, as well as abiotic factors such as sunlight, water, and soil. Ecology views environments holistically and studies the complex relationships within and between populations in an ecosystem. Organisms depend on each other through food webs, with plants and algae as primary producers, herbivores and omnivores as primary consumers, and carnivores and decomposers recycling nutrients and matter. Ecology analyzes these interactions across different levels of organization from organisms and populations to communities, ecosystems, and the global biosphere.
Charac of life w vocab #2
All living things share eight key characteristics: they are made of cells, reproduce, grow and develop, obtain and use energy, respond to their environment, and evolve over time. Reproduction can occur asexually through cell splitting or sexually through the joining of cells containing different genetic material from each parent. DNA contains the universal genetic code that is passed down from generation to generation and allows organisms to adapt over time through the process of evolution.
More from ksprattler (15)
Charac of life w vocab #2(1)
- 1. Intro to biology Characteristics of Life and Vocabulary
- 2. Characteristics of Life All Living things posses these 8 traits
- 3. Are Made of Cells
- 4. Reproduce Asexual - Splitting of cells -same old, same old - offspring's are clones Sexual – Joining of cells (Genetic differences)
- 5. DNA Are based on a universal genetic code DNA dexoyribonucleic acid Traits passed from generation to generation.
- 6. Develop and Grow Grow = producing more cells Develop = change->metamorphism differentiation
- 7. Obtain and use Energy Autotrophs (producers) (self) (feed) -----> photosynthesis Heterotrophs (consumers) (other) (feed) Metabolism = sum of all chemical reactions
- 8. Respond to their environment Stimulus – a signal to which an organism responds Biotic – living Abiotic - not living
- 9. Homeostasis (steady) (state) =Maintain an Internal Balance
- 10. As a group Evolution (Change over time) Adaptation trait that makes an organism better suited to survive in their environment Evolve population changes over many years