This kind of modeling is known as (D) simulation. A computer program is used to simulate an environment, in this case, the zoo. Instead of having to do an actual experiment which harms real animals, a simulation is done to cut costs and avoid using live samples.
Answer:
Consultation.
Explanation:
Consultation is not included because there is no need for it in US fish and wildlife service. Cooperation, communication and contemplation are needed in order to conserve the US fish and wildlife service in a good manner. Cooperation is required in order to fulfill the common goal and communication between different departments is also necessary. contemplation refers to examination and inspection which is very important for achieving the goal.
Na+ ion in sodium chloride is attracted to the oxygen side of the water molecules, while the Cl- ion is attracted to the hydrogens' side of the water molecule
this causes the sodium chloride to split in water, and the sodium chloride dissolves into separate Na+ and Cl- atoms
The Darwin's theory of evolution states that the organisms evolve through the process of the natural selection of the favorable genetic variations gradually over time. Through this process of the evolution, new species are developed over time. A single population may give rise to different species. These newly evolved species share similarities will each other as they have the same ancestor.
Hence, the given statement is 'true'.
The human immunodeficiency virus (HIV) that causes the disease known as aids selectively infects helper T cells (CD4+).
This retrovirus also infects macrophages and dendritic cells. When CD4+ T cell numbers decrease below a critical level (due to the killing of this cells with different mechanisms), cell-mediated immunity is lost. As a result, the body becomes progressively more susceptible to infections, leading to the development of AIDS.
<span> HIV can be transmitted only via body fluids like blood, semen, pre-seminal fluid, rectal fluids, vaginal fluids, and breast milk, which means that people usually get or transmit HIV through sexual behaviours and use of the needle. For HIV infection, these fluids must come in direct contact with a mucous membrane or damaged tissue. Another way is to be directly injected into the bloodstream (from a needle for example).</span>
