There Is Concern Over the Use of 2,4-D, a Synthetic

question 29

Multiple Choice

There is concern over the use of 2,4-D, a synthetic plant hormone, as a weed killer because the by-product dioxin

• A)can cause irreversible mutations in crop plants.
• B)causes massive fish kills when it gets into lakes and streams.
• C)can cause birth defects and leukemia in mammals.
• D)weakens the shells of the eggs of predatory birds, resulting in the death of their offspring.

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Definitions:

Serous

Relating to or producing a watery fluid, like that found lining certain cavities or as a component of blood serum.

Mucous

A thick, slippery substance produced by mucous membranes and glands to lubricate and protect certain parts of the body like the nasal passages and gastrointestinal tract.

Epithelium And Connective

These terms refer to two types of tissues; epithelium is a layer of cells covering the body surfaces or lining cavities, while connective tissue supports, binds, or separates other tissues and organs.

Connective And Muscle

This is not a single key term but refers to both connective tissue, which supports and binds other tissues, and muscle tissue, which is responsible for movement. NO.