A. It decreases biodiversity by harvesting everything in its path, so that unwanted fish are unnecessarily killed
Answer:
The correct answer is option C.
Explanation:
The adaptive immune is characterized by immunological memory, specificity, and self nonself recognition. These cells are involved in lymphocytes that fight against the specific antigen.
T cells tend to be more severely affected than the B cells by the primary immunodeficiencies however both are the major components of the adaptive immune system.
Thus, the correct answer is option C.
The appearance or quality of light reflected from the surface of a mineral is known as luster.
In mineralogy, luster refers to how a mineral surface appears in terms of its capacity to reflect light. The degree of transparency, diaphaneity, and structure of a mineral all affect its luster.
A mineral's ability to reflect light is referred to as luster. The first step in identifying a mineral is to measure it. Always examine a brand-new surface for luster; you might need to remove a tiny amount of material to reveal a clean sample. Metallic luster, which is extremely reflective and opaque, to dull luster (non-reflective and opaque.)
Mineralogists use the physical characteristic of luster to identify minerals. A mineral's luster defines how its exterior reflects light and how its inside may bend or refract light. Some minerals have a metallic sheen, while others don't.
A mineral reflects light by having a luster. The two main categories of luster are described by the labels metallic and nonmetallic. The most popular words for luster are shown in Table 7, along with an illustration of a comparable mineral. Some minerals are described as "earthy," "chalky," or "dull" because they lack luster.
To know more about luster refer to: brainly.com/question/11192295
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Explanation:
First of all let's see, what's an <em><u>ecosystem</u></em><em>?</em>
- the ecosystem is defined as the result of what happens when a community of living organisms shares and interacts within their environment.
What this means is that the ecosystem is a product of a <em>specific community</em>. There are several types of ecosystems, for example, a marine ecosystem, the rain forest ecosystem etc.
Now, what's a <em><u>community</u>?</em>
- A community in itself is a group of beings that share something in common and work, interact, and live together.
What happens with the community is that the definition of it does not extend to the specifics of which types of ecosystems can come out of the myriad of communities that exist.
Conclusion: Therefore, a community is a formed group of beings with common locality and with a capacity to come together under a common denominator to establish as specific mode of existence, namely, an ecosystem.
I hope this was helpful ! :)
