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kari74 [83]
2 years ago
9

Which of the following is a distinct structure found specifically in the liver, spleen, and bone marrow?

Biology
1 answer:
Rina8888 [55]2 years ago
4 0

Answer:

option A is correct

Explanation:

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Cliff Company traded in an old truck for a new one. The old truck had a cost of $200,000 and accumulated depreciation of $40,000
masya89 [10]

Answer:

1,95,000 dollars

Explanation:

The recorded value of any commodity depends on the following elements:

- The instance value of the commodity on a page

- Additional value paid for buying the commodity and

- Other expenditure related to purchase of commodity

Here in this case, the recorded value of the truck is equal to the sum of trade allowance and additional payment to acquire new truck

Thus, recorded value of truck

= 1,53,000 + 42,000\\= 1, 95, 000

4 0
2 years ago
Cellular differentiation progressively restricts cell fate because the unexpressed genes in the cell: Select all that apply. acc
AnnyKZ [126]

Answer:

The correct answer is ''undergo irreversible repression.''  

Explanation:

The morphological and physiological transformation of meristematic cells into adult or differentiated tissues constitutes the process of cell differentiation. This, and the consequent specialization of the cell, bring about the division of labor, forming cells with specific functions. Differentiation occurs by differential activation of some genes and repression of others. Depending on the position it occupies, each cell receives certain stimuli to develop the corresponding activities. During the differentiation process, cells undergo a series of changes in their characteristics and there is a readjustment in their mutual relationships.Different molecular factors initiate and drive the programming / reprogramming of cell fate through the modulation of specific genomic and epigenomic patterns, which regulate the expression of activator / repressor genes of the main fundamental and specialized cellular processes. Thus, the differentiated cell will express certain genes and acquire certain functions.Adult stem cells are responsible for maintaining the different types of specialized cells that make up the body. Asymmetric cell division in stem cells has emerged as one of the main physiological mechanisms that regulate the number of cells and their diversity to maintain tissue homeostasis. A large number of molecules, generically called determinants of cell fate, participate in the regulation of asymmetric division. Asymmetric division of somatic stem cells produces both a stem cell and a progenitor. The initial progenitor cells, through new cycles of asymmetric cell division, finally reach their terminal state of cell differentiation, due to changes in intracellular and extracellular (environmental) signaling. After cells leave their mother state and begin to differentiate, they make exclusive selections for phenotypic pathways through secondary genomic / epigenomic modifications, mainly to different types and gradients of transcription factors (physiological programming of cell differentiation). This leads, for example, to activation of specialized biosynthetic pathways, remodeling of the cytoskeleton, and repression of cell proliferation signaling. The expression of genes is regulated mainly at the level of their transcription. Transcription factors correspond to proteins with the ability to interact with specific DNA sequences and trigger their transcriptional activity. Most transcriptional factors contain different domains that participate in different aspects of protein function; they generally contain two domains: a domain that binds to specific DNA sequences and an activation domain that regulates transcription by interacting with other proteins. In the regulation of gene transcription, in addition to transcription factors, coactivating and corepressor molecules participate, which bind to them, modifying their activity in a positive or negative sense. Each cell type has a characteristic pattern of gene transcription, which is determined by the binding of combinations of transcription factors to the regulatory regions of a gene.

4 0
2 years ago
A researcher finds that white bread contains more preservatives and has a higher moisture content than wheat bread. She designs
velikii [3]

Answer: She will need to learn out how to quantitatively measure mold growth to measure the dependent variable.- last choices

5 0
2 years ago
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Describe your diagnosis for the patient. How did the chlorine gas affect concentration difference, diffusion distance, and surfa
garri49 [273]

Answer:

The concentration difference is the difference of concentration in the blood when entering the lungs, increasing the difference increases the rate of diffusion. Diffusion difference is the distance between the respiratory membrane, increasing the distance causes a decrease in diffusion rate. The surface area of the lungs affects the available space for diffusion, decreasing the surface area decreases the diffusion rate

Explanation:

8 0
2 years ago
What percentage of sheep had a body height of 1.2 meters or more 30 years ago? How does it differ from the present data? Does th
Marysya12 [62]

Answer:Thirty years ago, 45 out of 200 individuals, or 22.5% of individuals, were at least 1.2 meters tall. Presently, 50.5% of individuals are at least 1.2 meters tall. Meanwhile, individuals below 1.2 meters in height have decreased significantly between the two years of data. This data supports the argument that directional selection is occurring.

Explanation:

8 0
2 years ago
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