Answer:
The elemental is required in very small amount. (Ans. A)
Explanation:
Trace element is also known as micro-nutrient. It is also defined as any chemical element required by living organisms in a minute or small amounts which is usually part of the vital enzyme (cells produced by catalytic protein).
Exact needs of trace elements vary among species, like commonly required plant trace elements are cooper, zinc, manganese, boron, and molybdenum. Animals commonly required iodine, manganese, and cobalt.
Absence of necessary plant trace elements required by plants in the soil causes deficiency disease, lack of animal trace elements used by animals in the soil may not harm plants, but, animals feeding on those plants develop their deficiency disease.
So, the adjective trace means that the elemental is required in a very small amount.
Their beaks could have adapted over time to help them better survive in their environment.
Answer:
Explanation:
They are found only in the zone of maturation, and not the zone of elongation, possibly because any root hairs that arise are sheared off as the root elongates and moves through the soil. Root hairs grow quickly, at least 1μm/min, making them particularly useful for research on cell expansion.
Acquired traits
Explanation:
The traits an organism develops during its lifetime are called acquired traits.
They are different from inherited traits in which organisms directly obtain from their parents.
- Acquired traits are developed with time by an organism as a result of environmental influences.
- Inherited traits are passed from one generation to another.
- Acquired traits are non-inheritable and cannot be passed from generations to another.
Learn more:
Polygenic trait brainly.com/question/4161162
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