The correct option for the above statement is:
B. They save energy and metabolites and help the organisms to respond to the environmental changes.
Explanation:
Studies of organic phenomenon generally live the assembly of template RNA. Most mechanisms that management organic phenomenon do thus by dominant transcription, the synthesis of template RNA.
But there are other mechanisms for dominant the speed of supermolecule synthesis that occur downstream. Any step of the organic phenomenon is also modulated, from the DNA-RNA transcription step to post-translational modification of a super molecule. The subsequent may be a list of stages wherever organic phenomenon is regulated, the foremost extensively used purpose is Transcription Initiation: chromatin granule domains and transcription.
Two laws passed to prevent or decrease water pollution were the Clean Water Act and the Safe Drinking Water Act (SDWA). The Safe Drinking Water Act (SDWA) is the federal law that protects the quality of drinking water in the U.S. and the drinking water supplies throughout the nation. It is a standard for drinking water quality.
Answer:
The correct is B Hormones are chemical signals between cells transported in blood or hemolymph.
Explanation:
Hormones are called chemical messenger of the cell because they transmit chemical information from one cell to the target cell and regulating the functioning of that target cell by activating specific proteins related to the functioning of that target cell.
Hormone is secreted from its source gland such as Pituitarygland, thyroid gland,adrenal gland.After being secreted hormones are transported via the blood stream to the target cell and binds to receptor of that target cell thus allowing the target cell to exert its biological function.
Answer: 2 They involve a different number of parents.
3 Only one process involves sperm and eggs.
5 Only one process involves cell division.
Explanation:
The sexual and asexual reproduction are the two modes of reproduction through which the organisms produce offspring and lead their generations. The asexual reproduction takes place in simple organisms whereas the sexual reproduction takes place in complex organisms.
The following are the differences between asexual and sexual reproduction:
2 They involve a different number of parents.: In asexual reproduction only single parent is involved which produces a large number of offspring whereas in sexual reproduction two parents are involved which produces limited number of offspring.
3 Only one process involves sperm and eggs.: In sexual reproduction the fusion of the male and female gametes is required for production of offspring.
5 Only one process involves cell division.: Asexual reproduction occurs through cell division that is a single parent cell get split into two daughter cells.
The DNA is identical in offspring produced by asexual reproduction but not similar in offspring produced by sexual reproduction as two parents are involved and segregation of chromosomes takes place during gamete formation.
Meiosis does not occur in asexual reproduction. This occurs in sexual reproduction during gamete formation.