Answer:
Rotifers are specialists at living in habitats where water dries up regularly.
The Monogononta, which have males, produce fertilised 'resting eggs' which can resist desiccation (drought) for long periods.[11]
The Bdelloids, who have no males, contract into an inert form and lose almost all body water, a process known as cryptobiosis. Bdelloids can also survive the dry state for long periods: the longest well-documented dormancy is nine years. After they have dried, they may be revived by adding water. In this, and several other ways, they are a unique group of animals.[12]
Explanation:
The front has a ring of cilia circling the mouth. This gave the rotifers their old name of "wheel animalules". There is a protective lorica round its body, and a foot. Inside the lorica are the usual organs in miniturised form: a brain, an eye-spot, jaws, stomach, kidneys, urinary bladder.
Rotifers have a number of unusual features. Biologists suppose that these peculiarities are adaptations to their small size and the transient (fast changing) nature of its habitats.
Answer: Natural selection can be defined as the differential survival and reproduction of members of the population of a species that have suitable traits to survive in a population of species.
Explanation:
The punctuated changes in the population of species have been found inordinately faster in the geological time scale, but changes per-generation have been relatively slow. Also, the rate of evolution in such a population is also slow. The punctuated changes in the population are because of evolution but the per-generation changes are the outcomes of the natural selection, in which only the beneficial traits are passed from one generation to another.
The correct answer is B. The parents are heterozygous with polka-dot tails, so they both have Pp genotype. The combination of their genotypes (Pp x Pp) could produce 4 genotypes PP, Pp, Pp and pp. Therefore, there is 25% chance for a PP genotype, 25% for a pp genotype and 50% for a Pp genotype. The PP and Pp genotypes produce a polka-dot tail phenotype and the pp genotype produces a solid coloured tail phenotype. In conclusion, there is 75% chance for a polka-dot tail (25% for a PP + 50% for a Pp) and a 25% for a solid coloured tail phenotype (25% for a pp).
Answer:
physical, cognitive, socio-emotional
Explanation:
The complete question is as follows:
According to the text, the interaction of what three developmental domains shapes human development?
Select one:
a. social, physical, moral
b. mental, physical, environmental
c. physical, cognitive, socio-emotional
d. environmental, genetic, perceptual
- The term domain describes the specific aspects of the change and growth that takes place in relation to the human development.
- The three main developmental domains that shapes human development are :physical, cognitive and socio-emotional domains.
- The physical domain includes the physical changes and growth that takes place in a human body. It also includes the development of the motor skills and the use of senses.
- The cognitive domain covers the aspect of development creativity and intellectual skills. It includes various factors such as memory, attention, planning, thought processing and accomplishing goals.
- Socio-emotional domain includes the ability to deal with emotions and udnerstanding others emotions. This is a phase of developing attachments and interaction skills. During this phase the cooperative nature, empathatic nature and morality of an individual develops.
A. The organism has a large nose, because it's homozygous.
