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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 effect of different species of plants having very different DNA?
different species of plants having very different DNA causes them to be different species of plants.
Why do many scientists believe there are differences in living things?
Because species adapt to different environments and habitats.
What accounts for the variation Darwin observed among island species?
Based on the study by Abzhanov et al. (Bmp4 and Morphological Variation of Beaks in Darwin's Finches. Science 2004 ), the differences in beak shape is partly determined by the expression of a signaling factor (Bmp4). Finches that have larger and broader beaks were shown to express Bmp4 earlier in development and at higher levels. Finches with different shaped beaks were able to exploit different food sources and this allowed the many beak shapes to remain present. After hundreds (or thousands) of years, the birds diverged and became different species.
What keeps different species of Finches from mating?
Song and appearance both play a role in keeping different species from mating.
What are the three main factors upon which the strength of timber depends?
The strength of timber depends on its species, moisture content, and the direction of the load applied. Different wood species have varying strength properties. Moisture content affects wood's strength and dimensional stability. The direction of load applied influences wood's strength due to its anisotropic nature.
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 the weight of wood with diameter 4feet and length 16 feet?
This depends on the species of wood and the moisture content of that piece of wood.
Why different ocean zones have different species?
the differences is that the zones are the temperature
What is an acceptable moisture content for hardwood floors?
An acceptable moisture content runs anywhere from 4 to 18% depending on a variety of factors including the species of wood, where the wood floor is installed geographically, and the time of year. As a result, most wood used for flooring is kiln dried to 6 to 9% moisture content to assist in keeping it from getting so wet it contracts and so dry it shrinks.
What are the two differences darwin discovered in the beaks of birds in the galapagos islands?
They are from different species.
What is the standard value of moisture content of swartzia madagascariensis?
The standard moisture content for Swartzia madagascariensis, a tropical hardwood species, typically ranges between 12% and 15% when measured at equilibrium moisture content in its natural environment. However, specific values can vary based on factors such as location, age, and the method of measurement. For precise applications, it’s advisable to conduct direct measurements on the specific batch of wood in question.
What is the density of elm?
The density of elm wood typically ranges from 560 to 660 kg/m3, depending on the specific species of elm and the moisture content of the wood.
How can you tell if a fish is a mail or femail?
That depends on the species. In some there are no visible differences, in others the males and females may look like different species and in still others the differences could be in a colour or fin shape.
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.
Why does wood have a range of values of density?
Wood has a range of density values due to several factors, including the species of the tree, the part of the tree from which the wood is derived, and the moisture content at the time of measurement. Different species have varying cellular structures and growth conditions that affect their density. Additionally, heartwood typically has a higher density than sapwood, and wood can absorb or lose moisture, further impacting its density. This variability is essential for different applications in construction, furniture making, and other industries.
What are the differences in ants and bees?
They are a totally different species. There is no connection between them apart from the fact that they are both insects.
