the ability of an organism to alter greatly its PHENOTYPE depending upon environmental conditions. The phenomenon is seen most clearly in plants, perhaps because they are fixed in the ground.
What is an environmental variance?
environmental variance The portion of phenotypic variance that is due to differences in the environments to which the individuals in a population have been exposed.
What are some environmental variations?
For example, environmental variations in humans could be: Hair length – what length you choose to have your hair. Scars – caused by accidents personal to you. Muscle strength – dependent on how much exercise you do.
What is environmental variation class 10?
The differences in characteristics between individuals of the same species is called variation . Some variation is passed on from parents to offspring, via genes during reproduction. … This is called environmental variation.
How do you identify environmental variation?
Environmental variation can generally be identified if the variation disappears when both variant and normal plants are transplanted to a common environment. Therefore this is a test that should be performed [to aid in determining the cause of variation.]
What name is given to a characteristic caused by environmental variation?
Environmental causes of variation
Variation caused by the surroundings is called environmental variation .
What is the difference between genetic variation environmental variation and genotype by environment interaction give examples of each?
For example, the variation among skin color in humans is genetic variation. Environmental variations are variations that occur due to environmental influence. … People also differ in the extent that the environment can influence their genetics, called genotype-by-environment interaction.
What is the simple definition of environment?
Full Definition of environment
1 : the circumstances, objects, or conditions by which one is surrounded. 2a : the complex of physical, chemical, and biotic factors (such as climate, soil, and living things) that act upon an organism or an ecological community and ultimately determine its form and survival.
How do environmental factors cause variation?
Environmental causes of variation
Characteristics of animal and plant species can be affected by factors such as climate, diet, accidents, culture and lifestyle. … Another example is that of a plant that grows in the shade of a big tree – it will grow taller to reach more light.
What are environmental characteristics?
Environmental characteristics include dependencies, competition and uncertainty. … It is suggested that the creation of appropriate climates and structural design as responses to environmental pressures may be considered as complementary strategies in an attempt to maintain administrative control.
What is variation short answer?
variation, in biology, any difference between cells, individual organisms, or groups of organisms of any species caused either by genetic differences (genotypic variation) or by the effect of environmental factors on the expression of the genetic potentials (phenotypic variation).
What is variation in biology class 9?
Note: In biology, variation is any difference between cells, individual organisms, or groups of organisms of any species which is caused either by genetic differences (genotypic variation) or on the expression of the genetic potentials by the effect of environmental factors (phenotypic variation).
What is variation class 10 Ncert?
Hint: Variation in terms of biology is any difference between cells, organisms of any species caused either by the genetic differences or environmental factors. Complete Answer: – Variations are the differences present between the individuals of the same species or different species.
Is a suntan environmental variation?
What is environmental variation? Variation depends on changes in the surroundings and / or lifestyle e.g. suntan, language, scars. Give examples of inherited variation. Variation that is inherited from parents e.g. blood group, eye colour.
What is genetic variation and environmental variation?
The main difference between genetic variation and environmental variation is that genetic variation is the variation of the genotype between two individuals within the same species whereas environmental variation is the dependence of the phenotype upon the environmental factors.
What are examples of environmental traits?
Examples of environmental traits are your favorite music, being a good basketball player, and the language you speak. These traits are environmental traits because they are traits that you choose or learn, or that are influenced by the place you live. Explore the inherited traits and learned behaviors of a classmate.