Stratification in the field of ecology refers to the vertical layering of a habitat; the arrangement of vegetation in layers. It classifies the layers (sing. stratum, pl. strata) of vegetation largely according to the different heights to which their plants grow.
Answer:
To prepare DNA for replication, a series of proteins aid in the unwinding and separation of the double-stranded DNA molecule. DNA single-stranded binding proteins - These proteins bind to the DNA as a tetramer and stabilize the single-stranded structure that is generated by the action of the helicases.
Explanation:
DNA replication is semi-conservative because each helix that is created contains one strand from the helix from which it was copied.
Answer:
Pyramids of number show the number of <u>organisms</u> in each <u>trophic</u> level but pyramid of <u>biomass</u> show their total mass. This gets less at each trophic level because every living thing loses most of the <u>energy</u> they take in. Some is lost as heat during <u>respiration</u> and some is lost in the waste <u>products</u> living things excrete. Their consumers can only get the energy left in their <u>tissues</u>.
Answer:
Family members in the household need to receive the influenza vaccine."
Explanation:
Human Immunodeficiency virus (HIV) can cause acquired immunodeficiency syndrome AIDS, which is a viral disease which can destroy lymphocyte , thereby increasing susceptibility to infection and malignancy. A child with human immunodeficiency virus (HIV) infection will receive the same immunizations as other children, apart from live vaccines. All household members will also receive the influenza vaccine. Blood tests prior to immunizations are unnecessary and inaccurate.