Characteristics that are always present in living organisms are _____. Answer. Living organisms are feeding, moving, breathing, excreting, growing, reproducing, and are sensitive.
The answer is kinetochore
Analyze the human karyotype and give two examples of pairs of metacentric chromosomes, two examples of telocentric pairs, and two examples of acrocentric pairs.
Answer: The test that is conducted to evaluate and identity the shape,size and number of chromosomes in cells of organism is called the Karyotype.
Metacentic chromosomes are X - shaped chromosomes. They have centromere at the middle, which makes the arms of the chromosomes equal in length. Therefore any type of chromosomes with equal length of arms is said to be Metacentic. Thus chromosomes on position 1,13, 16 , 19 and 20 are examples.
When a pair of chromosomes showed a regular segregation at anaphase of meiosis, they are said to be telocentric. They are type of chromosomes in which the centromere are located at the terminal ends of the chromosomes, with the telemeres extending from theses ends.Hence during segregation, the ends of telocentric chromosomes are orientated towards the poles of the cells. example is the alphabets ''i'' shaped chromosomes in mice and 29 pairs autosomes in Angora goats.
When the centromere is located in such a way that one arm lenght of a chromosomes is longer than the other, then this is called acrocentric. Example is chromosome 21 of down syndrome.others are 13, 14, 15, 22, and Y-chromosomes.
Explanation:
Predators population decreases due to loss of habitat, introduction of pests and expansion of residential spaces.
<h3>Why predators is declining in the Appalachian region?</h3>
The number of predators is declining in the Appalachian region due to loss of habitat, introduction of pests and expansion of residential and recreational spaces. These factors also adversely affected the biodiversity present in the forest.
If trees in a timber cruise were found to be of many different species, then it would not mean that the forest could be used for timber because it has different types of species of trees. If we want to grow trees for timber we must cultivate similar type of trees.
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