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Which of these conditions should completely prevent the occurence of natural selection in a population over time?
All varation between individuals is due only to environmental factors
Why are experiments that involve transplanting species seldom conducted today?
There are no criteria to determine if they are successful
How did Darwin attempt to determine how modifications of a species are accomplished?
He didn't understand how modifications of species occurred. His theories have stood the test of time when the actual mechanisms were discovered. Further scientific evidence has overwhelmingly proven his basic ideas were correct.
What is phenotypic variation?
Phenotype variation is slight variations in a phenotype that are caused by the expression of an organism's genes or the influence of environmental factors. A species can have several different phenotypes within it.
What is the only way scientists know that some species existed?
Actually, there are a variety of methods to know about the existence of different species. In some cases, scientists rely on past writings from respected men and women who had discussed those species. In other cases, as modern biologists, entomologists, oceanographers, and others make interesting new discoveries, they want to determine links to past species or find out how old a particular discovery really is. A common technique is to use carbon dating to determine how old a species is/was. Some scientists do extensive research on the history of a given species, looking at what information exists about it and what new information has been published. There are new species being discovered on a regular basis, and I enclose a link to a publication that follows these discoveries.
A term that describes the number and variety of species that live in an area?
Biodiversity refers to the number and variety of species that live in a specific area. It encompasses not only the diversity of species, but also genetic diversity within each species and the variety of ecosystems present.
What factors determine an ecozone?
Factors that determine an ecozone include climate, topography, soil types, flora and fauna species present, and human activities impacting the environment. These factors interact to create unique ecological characteristics within a specific geographic area, defining the boundaries and characteristics of an ecozone.
What are the two factors that determine a materials density of wood?
The two main factors that determine the density of wood are the species of the tree and the moisture content of the wood. Different tree species have varying densities due to their cellular structure and growth patterns. The amount of moisture present in the wood affects its weight and density, with denser wood typically having lower moisture content.
What is the particular species that come and go in the process on succesion depend on?
The particular species that come and go in the process of succession depend on factors such as soil quality, climate conditions, availability of resources, and interactions with other species present in the ecosystem. These factors determine which species are able to establish and thrive in a given environment at different stages of succession.
What factors determine whether a species can be presented in a place?
The weather,food supply
What are the factors that determine the status of biodiversity in an ecosystem?
The biophysical environment (soil types, drainage basins, depth in a water body), and spatial interactions (home ranges, migration patterns, fluxes of matter)determine the state of biodiversity..
What do limiting factors determine?
Limiting factors determine the abundance and distribution of a particular species within an ecosystem. These factors can include resources such as food, water, and shelter, as well as other environmental conditions like temperature, competition, and predation. When a species encounters a limiting factor, it can impact its growth, reproduction, and overall survival.
Name two factors that will determine whether a non-native species becomes an invasive species?
Two factors that can determine whether a non-native species becomes invasive are its ability to reproduce rapidly and outcompete native species for resources, and the absence of natural predators or controls in its new habitat.
How can one determine the relative abundance of a species in a given ecosystem?
One can determine the relative abundance of a species in a given ecosystem by conducting surveys or sampling methods to count the number of individuals of that species compared to other species present in the ecosystem. This information can help scientists understand the population dynamics and overall health of the ecosystem.
Two factors that determine whether a non native species becomes an invasive species?
1.Very high and still Increasing population and 2. They are dominating or killing off other species in the area
What are biotic factors that can affect the structure of biological communities?
Biotic factors such as competition for resources, predation, symbiosis, and disease can all influence the structure of biological communities by shaping population dynamics and species interactions. These factors can determine species abundance, diversity, and distribution within a community.
What 2 factors determine the evolution of a species?
Two key factors that determine the evolution of a species are genetic variation and natural selection. Genetic variation provides the raw material for evolutionary change, while natural selection acts on this variation by favoring individuals with traits that increase their chances of survival and reproduction.
