Select the three statements that are true. To review the germ layers and the terminology associated with body cavities, see the Hints. A. The digestive tract of a coelomate functions as a coelom.
B. A diploblast has no mesoderm.
C. In a pseudocoelomate, the tissue lining the inner side of the body cavity arises from the same germ layer as the muscles.
D. A pseudocoelom has the same functions as a true coelom. In a coelomate, the tissue lining the inner side of the body cavity arises from the same germ layer as the tissue lining the outer side of the body cavity.
E. An acoelomate triploblast has no endoderm. In a coelomate, the tissue lining the inner side of the body cavity arises from the same germ layer as the lining of the digestive tract.
Answers
Answer:
A diploblast has no mesoderm.
A pseudocoelom has the same functions as a true coelom. In a coelomate, the tissue lining the inner side of the body cavity arises from the same germ layer as the tissue lining the outer side of the body cavity.
Explanation:
Diploblast organisms are the ones that have only two primary germ layers. These organisms have outer ectoderm and inner endoderm but no mesoderm. Example: Cnidarians
A true coelom is derived from mesoderm and is completely lined with tissue derived from mesoderm. The outer and inner linings of the coelom are made of muscle layers that are developed from the mesoderm.
A pseudocoelom is the one that is incompletely lined with mesoderm. Both pseudocoelom and a true coelom serve as shock absorber and provide space wherein the internal organs can be placed. The fluid present in them sere as medium for transport of nutrients, gases, etc.
Final answer:
The three true statements are B, C, and D.
Explanation:
The three statements that are true are B, C, and D.
- B. A diploblast has no mesoderm. This is true because diploblasts, such as cnidarians, have only two germ layers: the ectoderm and endoderm.
- C. In a pseudocoelomate, the tissue lining the inner side of the body cavity arises from the same germ layer as the muscles. This is true because pseudocoelomates, like roundworms, have a body cavity called a pseudocoelom that is lined with mesodermal tissue, which also gives rise to the muscles.
- D. A pseudocoelom has the same functions as a true coelom. In a coelomate, the tissue lining the inner side of the body cavity arises from the same germ layer as the tissue lining the outer side of the body cavity. This is true because both a true coelom and a pseudocoelom provide space for organ development, cushioning, and movement.
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Answer:
a pure substance that is made up of different elements
Explanation:
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b. 450 kilograms
c. 4 grams
d. 40 kilograms
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A card and a framed picture cannot cost 450 kilograms or even 40 kilograms. A card itself might weight 4 grams, but combined with a frame picture it is definitely approximately 450 grams of a package.
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Eukaryotic microbes and prokaryotic microbes
Explanation:
Some microbes such as bacteria do not have a membrane-bound nucleus. So, their genetic material lies in the cytoplasm itself. These microbes are called prokaryotic microbes. All the bacterial species are prokaryotes. Example: E. coli.
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B. year 2
C. year 3
D. year 4
Answers
break even means that the total income is equal to the total cost.
Therefore, we can equal the total gain to zero.
We have then:
Equaling zero we have:
Rewriting the polynomial we have:
We observe that the polynomial only has a real solution.
Therefore we have:
Answer:
the year (x) the entrepreneur will break even is:
D. year 4
The number of year (x) that it would take for this entrepreneur to break even is equal to: D. year 4.
How to calculate the year (x) this entrepreneur will break even?
In Economics, breaking even implies that the total revenue of an entrepreneur would be equal to the total cost. Thus, we would equate the total profit to zero as follows:
P(x) = x³ - 4x² + 5x - 20
Equating to zero, we have:
x³ - 4x² + 5x - 20 = 0
Simplifying the polynomial, we have:
(x - 4)(x² + 5) = 0
Note: The polynomial above only has a real solution.
x - 4 = 0
x = 4 years.
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A)chemical property
B)physical property
C)chemical change
D)physical change
Answers
Answer:
The color is one among the B) physical properties.
Explanation:
The physical properties are visible or observable. The physical properties are measured with physical system. There are many physical properties which include color, size, radiance, luster, and so on. There are two types of physical quantities which includes intensive property and extensive property. This property depends on the change in the structure of the material.
The color of the substance depends on the color it is observing and illuminating which depends on the reflective property of the substance.
The color of ink is basically a physical property. The correct option is B.
Ink's colour is a tangiblecharacteristic. A substance's physical attributes are traits that may be seen or quantified without affecting its chemical makeup. Ink's appearance is referred to as its colour, which is determined by how it responds to light.
There are no chemicalreactions taking place, and the ink's chemical makeup does not change because it is an inherent quality of the ink itself.
Colour, smell, density, melting point, boiling temperature, and other qualities are examples of physicalproperties.
In the case of ink, the colour is a physical characteristic that aids in differentiating and identifying various types or ink formulations.
Thus, the correct option is B.
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