A simple columnar epithelium<span> is a </span>columnar epithelium<span> that is uni-layered. In humans, a simple </span>columnar epithelium<span> lines most </span>organs<span> of the digestive tract including the stomach, small intestine, and large intestine. Simple columnar epithelia line the </span>uterus<span>.</span>
Answer:
Adaptive immunity also involves a memory to provide the host with long-term ... Unlike NK cells of the innate immune system, B cells (B lymphocytes) are a ... Cytotoxic T cells destroy virus-infected cells in the cell-mediated immune ... Helper T- cells are one of the main lymphocytes that respond to antigen-presenting cells.
Explanation:
Mitosis
Mitosis is the part of the cell cycle in which the duplicated genetic material (chromosomes) within the parent’s cell nucleus is separated to produce two daughter cells that are genetically identical to the parent. Mitosis is important to life because it is involved in the production of new cells for growth and to replace damaged cells. Mitosis occurs in five stages which are; interphase, prophase, metaphase, anaphase and telophase (cytokinesis).
C) The increase in greenhouse gas emissions is like placing an extra log on the fire to produce more heat.
Explanation:
The increase in greenhouse gas emission cannot be likened to placing an extra log on the fire to produce more heat.
In essence, the earth is not receiving more heat than usual from the sun. It is not getting more heated.
- Greenhouse gases prevents heat from being lost from the earth surface as long wave radiation.
- This in turn will warm and heat the earth surface.
- The more the greenhouse gases, the more heat that is trapped within the earth.
- The greenhouse gases is the cover that prevents heat from being lost.
- Global warming is what results.
- An increase in heating might not cause warming of the house if the house is open.
- So also, if the earth receives more energy from the sun, the temperature might not increase if no greenhouse cover is available.
Other analogies shows heating(global warming) and cover(greenhouse gases) except of C.
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