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Veronika [31]
3 years ago
15

While you develop callused feet when you go barefoot for a summer, your neighbor remains a tenderfoot by protecting her feet wit

h shoes. The differences in skin toughness between you and your neighbor are best attributed to ___________.A) the molecular structure of genes. B) person-to-person genetic variations. C) the impact of epigenetic marks on gene expression. D) the interaction of genetic and environmental influences
Biology
1 answer:
Assoli18 [71]3 years ago
6 0

Answer:

Option-D

Explanation:

The skin toughness trait is determined by the genes which can control the components of skin like the amount of the collagen and the elastin.  Also, the trait is influenced by the environmental factors which can act as a stimulus to either increase or decrease the components of the skin.

In the given case, when you walk barefooted develops the callus but when you walk with the shoes you do not develop calluses. Here the development of calluses is influenced by the environment which can lead to the increased production of collagen genetically which provides strength.

Thus, Option-D is the correct answer.

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The components of he respiratory system conduct air to the lungs ,such as the trachea (windpipe) which branches into smaller structures called Bronchi . The process of breathing (respiration) is divided into two distinct phases , inspiration (inhalation) and expiration (exhalation).

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Dendritic cells and macrophages kill by ingestion and destruction of particulate matter in a process called phagocytosis. Dendri
Korvikt [17]

Answer:

The statement is true

Explanation:

Hematopoietic stem cells give rise to myeloid progenitor and lymphoid progenitor and these two progenitors give rise to many immune cells. Dendritic cells are produced by both the progenitors and macrophages are produced by myeloid progenitor.

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The ileum has an acidic environment due to the presence of hydrochloric acid.<br> true or false​
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true

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2 years ago
Which of the following are financial securities that represent promises to repay a fixed amount of funds?
Mrrafil [7]

Bonds.

Guaranteeing savers high rates of return.

<h3>What is the purpose of the financial system?</h3>
  • A financial system performs the role of an intermediary and makes it easier for money to move from areas of surplus to areas of deficit. It comprises various institutions, markets, rules and laws, customs, investors, analysts, transactions, and claims and liabilities.
  • Managers can use big data in their businesses by using a financial system. A financial system combines data from numerous organizational departments into a single perspective, making it simple for users to comprehend the connections between distinct data types.
  • Financial services guarantee the advancement of both domestic and international trade. Increased domestic and international exports of goods are guaranteed by the presence of factoring and forfeiting businesses. Banking and insurance services also facilitate an increase in these promotional activities.

The following are financial securities that represent promises to repay a fixed amount of funds: Bonds.

  • Bonds provide a fixed amount of maturity value.

The following is not a service that the financial system provides for savers and borrowers: Guaranteeing savers high rates of return.

  • The financial market can't guarantee any particular rate of return to savers.

To learn more about the financial system, refer to:

brainly.com/question/13854011

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Industrial produce chemical reaction environment
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