Cleaving a flatworm into pieces would not kill the flatworm as each piece would turn into a new flatworm. The mechanism is known as fragmentation. In multicellular species, fragmentation refers to a kind of asexual reproduction in which a species gets cleaved into fragments.
Each of these fragments forms into completely developed, mature individuals, which are similar to their parents. Fragmentation is also called splitting, it is a mode of reproduction witnessed in various species like molds, filamentous cyanobacteria, lichens, various plants, and animals like flatworms, sponges, sea stars, and some annelids.
Answer:
a. Genotype of the parents are; Rr and rr
b. Please find the explanation to A below
Explanation:
This question involves a single gene that codes for flower color in a plant. The allele for red flower (R) is dominant over the allele for white flower (r). This means that a plant that is heterozygous for flower color (Rr) will be red.
In a cross between a plant with red flowers and white flowers, the phenotype of the offsprings is represented as: 37 plants with red flowers and 41 plants with white flowers. Observing from this number, one would realize that the phenotype ratio is equivalent to 1:1. This phenotypic ratio is only possible when the parent with red flower is heterozygous for the gene i.e. Rr. Hence, the genotype of the parents are: Rr and rr.
b) If one were to cross Rr (red flower) × rr (white flower), the phenotypic ratio of red to white offsprings will be 1:1. Hence, judging from the ratio got from the cross of the two parents above (1:1), the parental genotypes are Rr and rr.
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Answer: A<span>n increase in trade across the continent. </span>
Answer:
4780.3 cm^3
Explanation:
A cone is a three-dimensional shape and its volume can be calculated using the formula:
V = 1/3 πr^2h or πr^2h / 3
Where V= Volume of cone (cm^3)
r= radius (cm)
h= height (cm)
π= constant (22/7)
In this question, the values of r and h are 13cm and 27cm respectively.
Hence, to calculate the volume of the cone, we say;
V = 1/3 × 22/7 × 13 × 13 × 27
V = 100,386 / 21
V = 4780.2857142857
4780.285 to the nearest tenth is ~ 4780.3
Therefore, 4780.3cm^3 is the volume of the cone.