Answer:
Inversion.
Explanation:
Chromosomal mutation may be defined as the mutation that change the structure of the chromosome and may alter its number. Different types of chromosomal aberration are deletion, duplication, inversion and translocation.
The chromosomal inversion is the chromosomal rearrangement or the chromosome segment may get reversed. The fragment chromosome gets break off and then the segment gets join to the original chromosome but in the reverse condition.
Thus, the answer is inversion.
HIV's attack on CD4 T cells causes suppression of cell-mediated and humoral immune responses. the statement is correct is true
- Group of answer choices True
<h3>How does HIV infect the human body?</h3>
HIV binds to a component of that cell's membrane, CD4, penetrating its interior to multiply. As a result, the defense system gradually loses the ability to respond properly, making the body more vulnerable to disease.
With this information, we can conclude that CD4 are immune system cells (lymphocytes) and the main target of the HIV virus. The number of CD4 decreases with the evolution of the pathology.
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Answer:
Weathering and erosion constantly change the rocky landscape of Earth. Weathering wears away exposed surfaces over time. The length of exposure often contributes to how vulnerable a rock is to weathering. Rocks, such as lavas, that are quickly buried beneath other rocks are less vulnerable to weathering and erosion than rocks that are exposed to agents such as wind and water.
Explanation:
Weathering describes the breaking down or dissolving of rocks and minerals on the surface of the Earth. Water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. Once a rock has been broken down, a process called erosion transports the bits of rock and mineral away. No rock on Earth is hard enough to resist the forces of weathering and erosion. Together, these processes carved landmarks such as the Grand Canyon, in the U.S. state of Arizona. This massive canyon is 446 kilometers (277 miles) long, as much as 29 kilometers (18 miles) wide, and 1,600 meters (1 mile) deep.
Answer: The three main types, or classes, of rock are sedimentary, metamorphic, and igneous.
Explanation:
The differences among them have to do with how they are formed.