We can take an onion and study it from outside as much as we want thinking we figured out everything and understand everything there is to know about that onion. When we dare to peel off the first layer, or when we have the technology to peel off that first layer to study, as pertaining to the study of genetics, we would find that the new layer we just exposed has a surprise we did not see by looking at the previous layer.
An unbiased, accurate report of an event. An educated guess based on observations. An experiment is designed to test a hypothesis. A repeat of an experiment. A comparison used to provide a standard against which the actual experiment can be judged. A hypothesis that has been supported by different experiments.
A theory that has shown to be valid against long-term testing. Refers to whether issues are right or wrong Characteristics of Life Continuity of life: Living things that arise from other living things of the same type Biogenesis Metabolism: Sum of all the chemical reactions in an organism.
The common features shared by living organisms. Living things are composed of cellstissues,organs and organ systems.
Removal of waste products of metabolism. The reaction of organisms to stimuli in their environment. The production of new individuals. Molecules found in living things are composed of atoms where elements bonded together in different ratios to form biomolecules.
Such as CarbohydratesLipidsProteins and Vitamins. Carbon atoms bonded together make up most of the chemical compounds in living things. Single sugar molecules such as Glucose.
Made up of many sugar molecules bonded together. Convert smaller molecules into larger ones. Using energy Catabolic reactions: Complex molecule is broken down to simple molecules. Releasing energy Ecology Ecology: The study of the relationships of living organisms with one another and with the environment.
Part of the earth in which life can occur. Place in the environment where an organism lives. All the member of the same species living in an area.
Plants and animals sharing the resources of a particular habitat. The functional role of an organism in an ecosystem. Eg — How it feeds, what it eats, who eats it etc. Refers to weather over a long period of time. Aspects of the soil that influence an ecosystem such as the soil pH, soil type,moisture, air and mineral content of soil.
Autotrophs that carry out photosynthesis. Organisms that take in food from another organisms. Organisms which feed directly on producers.
Eg — Rabbits Secondary Consumers: Carnivores that feed on primary consumers. Eg — Fox Tertiary Consumers: Carnivores that feed on secondary consumers.
Eg — Badger Food chain: The pathway along which energy is transferred in an ecosystem.
Based on numbers of organisms at each trophic level in a food chain.Homozygous is a word that refers to a particular gene that has identical alleles on both homologous chromosomes.
It is referred to by two capital letters (XX) for a dominant trait, and two lowercase letters (xx) for a recessive trait. Jul 31, · An Online Tagalog - English Dictionary Learn Tagalog or Filipino Language for free.
There is a favorite breeding theory, or system, used by successful breeders of many varieties of animals. It usually eventuates in superior stock IF the male selected is himself an outstanding specimen, nearly faultless, and has such progenitors. The Scientific Method Scientific Method is a process of investigation where problems are identified and their explanations are tested by carrying out experiments.
Observation: An unbiased, accurate report of an event. Hypothesis: An educated guess based on observations. Experiment: An experiment is designed to test a hypothesis. Continue Reading →. A genotype is the genetic makeup of an organism.
When referring to a genotype, scientists are asking about what genes they have and what combinations those genes take. Possible combinations include homozygous dominant, heterozygous, and homozygous recessive.
Each of these genotypes will give rise to a phenotype, or a . Introductory Remarks. Experience of artificial fertilization, such as is effected with ornamental plants in order to obtain new variations in color, has led to the experiments which will here be discussed.
The striking regularity with which the same hybrid forms always reappeared whenever fertilization took place between the same species induced further experiments to be undertaken, the object.