Which of the following statements is true about chemical elements in an ecosystem?

Biology

1 answer:

ivolga24 [154]2 years ago

6 0

They are recycle within the ecosystem being constantly reused ( B ) is the true statement

The energy from the sun is use in the formation of nutrients in plants that is consumed by the primary consumers ( Herbivores ) in the ecosystem, while the primary consumers will be consumed by the secondary consumers ( carnivores ). these waste product from the secondary consumers is decomposed by the tertiary consumers ( Fungi and bacteria ) to be reused by the Plants again.

Hence we can conclude that the true statement about the chemical elements in the eco system is that they recycle within the ecosystem being constantly reused.

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A normal chromosome and its homolog carrying an inversion are given. the dot (•) represents the centromere. normal: a b c • d e

kotegsom [21]

The type of inversion is Paracentric inversion.

There are two types of inversion at the chromosome level, depending on the centromere:

Paracentric inversions:

the centromere is not included in the inversion.

Pericentric inversions:

The centromere is included in the inversion which can transform a metacentric chromosome into an acrocentric chromosome.

the structure that will form during synapsis is inversion loop.

These inversions are balanced rearrangements but at the moment of meiosis they cause difficulties in pairing. There is most often formation of a pairing loop. The occurrence of recombination in the inverted segment causes the formation of abnormal gametes by duplication / impairment.

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2 years ago

What happens to crude birth rates when literacy rates go up

Novosadov [1.4K]

Answer:

When literacy rates goes up then crude birth rates will automatically be decline

Explanation:

Crude birth rate refers to the number of births /1000 in a population. It doesn’t count the age and sex in a population.

General fertility corresponds to number birth of a women age between 15- 49 in a year.

Factors Affecting fertility Rates: Healthcare,Education

Healthcare: Improvement in healthcare leads to drop infant mortality rate , knowledge of birth control measures and economic status have an impact on birth rates.

Education: Female literacy rate and knowledge of birth control and employment opportunities also decline crude birth rate.