Answer:
Grass
Explanation:
The higher up you go in a food chain, the less energy available and the more you have to use to acquire energy.
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>
Answer:
<em>Pseudomonas aeruginosa.</em>
Explanation:
<em>Pseudomonas aeruginosa </em>is a gram negative, rod shaped bacteria that proves to be pathogenic for plants, humans and other organism. This bacteria is a multi drug resistance pathogen.
<em>Pseudomonas aeruginosa </em>causes osteomyelitis that involves the plantar puncture to the foot sole. The bacteria can cause specific skin injuries and more risk is present in the diabetic patients. This bacteria can also cause various post operative injuries.
Thus, the answer is <em>Pseudomonas aeruginosa.</em>
Answer:
a. significantly lesser
Explanation:
The density of protists living in the hay infusion is significantly lesser than the regular pond water because protists likes to live in aquatic or any water bodies. Some protists float on the surface of the water making their own food like plants by using the process of photosynthesis. Aquatic environments are ideal environment for protists, which have cilia and flagella that allows them to move in the water in search of food..
