The general principles of Hox gene function and logic elucidated in flies will apply to all bilaterian organisms, including humans. Drosophila, like all insects, has eight Hox genes. These are clustered into two complexes, both of which are located on chromosome
For a person with blood type A- (A negative), they can be transfused with either blood type A negative , or blood type O negative.
This is because any other blood type will immediately be rejected by their body.
A person with blood type A negative has got antibodies against any other blood type which has a rhesus positive factor as well as antibodies against any other blood type of a different group such as B and AB, even if they are rhesus negative.
Therefore because of the rhesus negative factor, a person with blood type A negative can only be transfused with rhesus negative .
Answer:
Option D: O-
Explanation:
They can also receive blood type A-, but that's not one of the options on the test.
Plz help w these
1. Answer is "it provides all the elements for lipids".
The elements of glucose are carbon, hydrogen and oxygen. Hence, if the molecule glucose were broken down, those elements are released.
The elements of lipids are same as glucose. But sometimes lipids contain sulfur and phosphorous.
In proteins there is nitrogen as element other than carbon, hydrogen and oxygen.
Nucleic acids also have carbon, hydrogen, oxygen, nitrogen and phosphorus as elements.
Hence, glucose molecule cannot provide all the elements for proteins and nucleic acids but can provide elements for most of lipids.
2. Answer is “NO”.
The four types of macromolecules are carbohydrates, lipids, proteins and nucleic acids. Elements of those macromolecules are as follows.
Carbohydrates - carbon, hydrogen, and oxygen
Lipids - carbon, hydrogen, oxygen sometimes nitrogen and phosphorus.
Proteins - carbon, hydrogen, oxygen and nitrogen sometimes sulfur and selenium.
Nucleic acids - carbon, hydrogen, oxygen, nitrogen and phosphorus.
Sugars are also type of carbohydrates. Hence, sugars can provide only carbon, hydrogen, and oxygen as the elements. Therefore, sugars cannot provide all the elements that needed to make four types of macromolecules. But sugars can provide elements to make carbohydrates and most of lipids.
bears hibernate during the winter.
B)
the base of the food chain is seasonal.
C)
available energy is lost from one trophic level to the next.
D)
light that supports photosynthesis is limited during certain times of the year.
Answer:
The correct answer would be C) available energy is lost from one trophic level to the next.
It is the universal law that the energy is lost when transferred from one trophic level to the next.
It is because most of the energy present at any trophic level is used by the organisms for their biological processes such as locomotion, reproduction et cetera. Due to this, most of the energy is lost as heat in the surrounding environment.
In the given food chain, the bears are present at the highest trophic level and thus they would get minimum energy.
Thus, the ecosystem can provide only a limited amount of energy to the bears due to which the ecosystem can support a limited number of bears.