Answer:
A. definite volume and definite shape
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Answer;
Cell
Explanation;
-The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.
-Cell is the basic unit and building block of life. It is bound by a cell membrane, and possesses a nucleus which acts as its brain. Arachnoidiscus ehrenbergi is an example of diatoms which are unicellular, therefore it is a cell.
El mecanismo por el cual el calor se transfiere de un objeto a otro a través de colisiones de partículas se conoce como conducción. En conducción, no hay transferencia neta de material físico entre los objetos.
The Kuiper belt is home to three officially recognized dwarf planets: Pluto<span>, </span>Haumea<span>, and Makemake. Some of the Solar System's moons, such as Neptune's Triton and </span>Saturn<span>'s Phoebe, are also thought to have originated in the region.
So the answer is Saturn
Thats what NASA will tell you, but they think the world is round so be careful when they give you "facts"</span>
Allergic responses to inhaled antigens occur when an individual is first sensitized to the antigen (i.e., the allergen), inducing an immune response and then has a subsequent exposure to the same antigen. The sensitization phase is characterized by <u>Induction of a CD4 T cell type II immune response</u>.
The process by which your body becomes sensitive to a particular substance is called sensitization. When your immune system becomes sensitized to an allergen, you can develop certain symptoms.
Antigens that can induce an allergic response are called allergens, and they are often derived from non-infectious or non-microbial sources.
To learn more about allergy and sensitization, here
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