Answer:
2 is DNA or RNA.1 is infectious.12 is HIV.13 is AIDS.7 is reproduction.8 is viruses.thats all I have
Answer:
Niacin can be prescribed to therapeutically lower cholesterol levels.
Explanation:
Niacin, known as vitamin B3, is used to reduce the risk of heart attack or stroke in people with high cholesterol. Niacin has gained popularity in the last 50 years and is mainly used to raise the level of HDL (high density lipoprotein) cholesterol, also known as good cholesterol and lowering bad cholesterol levels.
However, niacin can cause health damage, so it should always be used with medical supervision.
Yes, it is. Anything that is alive or that once lived would be considered biotic
I think the answer would be needs. Hope this helps.

Ecological succession is the gradual process by which ecosystems change and develop over time. Nothing remains the same and habitats are constantly changing.
<h3><u>There are two main types of succession, primary and secondary</u><u>:</u><u>-</u></h3>
Primary succession is the series of community changes which occur on an entirely new habitat which has never been colonized before. For example, a newly quarried rock face or sand dunes.
Secondary succession is the series of community changes which take place on a previously colonized, but disturbed or damaged habitat. For example, after felling trees in a woodland, land clearance or a fire.
The Major Points:
The species living in a particular place gradually change over time as does the physical and chemical environment within that area.
Succession takes place because through the processes of living, growing and reproducing, organisms interact with and affect the environment within an area, gradually changing it.
Each species is adapted to thrive and compete best against other species under a very specific set of environmental conditions. If these conditions change, then the existing species will be outcompeted by a different set of species which are better adapted to the new conditions.
The most often quoted examples of succession deal with plant succession. It is worth remembering that as plant communities change, so will the associated micro-organism, fungus and animal species. Succession involves the whole community, not just the plants.
<h2>ꜰᴏʟʟᴏᴡ ᴍᴇ❤</h2>