Chromosome is a structure that contains DNA molecules packaged around histone proteins, therefore carries the heredity material. Chromosomes number determines whether a cell is haploid (n) or diploid (n). A diploid cell has both set of homologous chromosomes while the haploid cell has only one set. Nucleus is the cellular structure that is responsible for the localized storage of chromosomal DNA.
Answer:
Option B, Pictographs
Explanation:
In a pictograph presentation, a symbol, image or color pattern in used for representing a numerical value.
This helps people with low numerical skills to understand the stats.
For example -
Let risk associated with any drug be represented by "*"
20 % risk will be represented as **
30 % risk will be represented as ***
and so on.
Thus, option B is correct
Answer:
Substrate. The substrate is the surface on which the river organisms live. It may be inorganic, consisting of geological material from the catchment area such as boulders, pebbles, gravel, sand or silt, or it may be organic, including fine particles, leaves, wood, moss and plants.
It's a ! cnidocytes help in defence and also in capturing prey ! so answer is A !!
