Answer:
The question lacks the illustrative diagram, the diagram has been attached as an image.
The correct answer, according to the picture is A.
Explanation:
All cells undergo division (mitosis or meiosis). Meiosis reduces the chromosomal number of the daughter cells by half. According to the question, The female species of Myrmecia pilosula ant has diploid cells total number of 2 chromosomes.
At the metaphase stage of meiosis I, homologous chromosomes (similar but non-identical chromosomes received from each parent) aligns at the center/equator of the cell called METAPHASE PLATE. This alignment is done when spindle fibres attach to the kinetochores of the chromosomes.
Option A in the diagram depicts this arrangement of homologous chromosomes in the centre of the cell. Note that, each chromosome has replicated to form SISTER chromatids held together at the centromere. These chromosomes will be pulled apart in the next stage (Anaphase).
Option B depicts only one replicated chromosome
Option D depicts separation of sister chromatids (only one chromosome)
Option E depicts separation of sister chromatids of two chromosomes which occurs in the Anaphase of meiosis II
C. acidic because anything with a pH of less than 7 is acidic
Answer:
We are getting taller because of improved nutrition and health.
Explanation:
Height, as a polygenic trait, is controlled by more than 2 genes in humans. Height as a trait in humans can be determined by the genetic code of an individual as well as the environmental conditions where such individual lives in. Environmental factors such as good and conducive environment, improved standard of living, and most especially nutrition and health.
The most reasonable cause why we seem quite taller than humans of 100 years ago is simply as a result of improved nutrition and health which was made possible by our advances in science and technology. Good standard of living and improved nutrition is responsible for we getting taller.
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Below are the choices:
homogenous mixture
<span>heterogeneous mixture </span>
<span>semi mixture
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You want to decorate the bottom of an aquarium with brightly colored rocks of different shapes and sizes. this describes a homogenous mixture<span>
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<span>The word hetero means different. Since the rocks are varied i assume it would be a heterogeneous mixture.</span>
