Answer:
Better healthcare
Rise in birthrate
Food security
Lack of awareness/ education
Cultural influences
Lack of family planning
Religious propagation
Malicious intent to change demographics
Immigration
For Social support
Perception of marriage & family.
Explanation:
This rapid population growth has an adverse effect on the natural resources and quality of life.
However, overpopulation has a deleterious effect on the environment due to the current lifestyle.
There would be rampant exploitation of natural resources, excess human waste accumulation, chances of epidemics, etc.
Besides, it would also lead to socio-economic problems like poverty, malnutrition, violence, corruption, etc.
Human overpopulation occurs if the number of people in a group exceeds the carrying capacity of the region occupied by that group.
The question is incomplete, however, the statements associated with this question is given in the comments and here as well:
Neither facilitated diffusion nor osmosis requires cell energy.
Diffusion of gases and other small molecules requires no energy on the part of the cell.
Active transport requires cell energy and osmosis doesn't.
Both endocytosis and active transport require cell energy.
Answer:
The correct answer is - Active transport requires cell energy and osmosis doesn't.
Explanation:
Osmosis is an example of passive transport as it does not require energy to facilitate the movement of solvent In the process of osmosis,. It moves from high concentration to low concentration through the semipermeable membrane which is along the gradient so no requirement of energy.
In the case of Active transport, it requires energy to facilitate the movement of transport as it is the movement of a substance from low concentration to a high concentration area that is against the concentration gradient.
Answer:
Many activities of human alter the availability of water in ecosystem.
Explanation:
We know that water is an essential item for daily use and development works. Water is required for different development processes.
Although, the drinking of water is foremost work, but human beings utilize water into agricultural practices, industries, cleaning activities etc. These activities of human beings alter the availability of water in an ecosystem. Thank you
Explanation:
The correct answer is: introns
Processing of mRNA is process that occurs only in eukaryotic cells. After the transcription, newly formed mRNA molecule is called and it must be processed into a messenger RNA (mRNA). Processing includes:
• Addition of a 5' cap to the beginning of the RNA
• Polyadenilation- addition of a poly-A tail (tail of A nucleotides) to the end of the RNA
• Splicing- removal of introns and linking the exons
After these steps mRNA is mature and used for the further steps (e.g. translation).
Sometimes some genes are alternatively spliced.
Answer:
Natural selection is one of the mechanisms by which an organism evolve. In the natural selection when the trait of an organism allows the organism to grow and reproduce in an environment and nature selects it, it is then passed on to the generations and become permanent.
Artificial selection is also one of the mechanism of evolution in which instead of nature, the selection is made by humans like the breeding experiments on dogs and plant crops.
The artificial selection and natural selection are interlinked as in the artificial selection the trait selected by the humans were also selected by nature like the case of crops, the crossing between desired plants produced results which were useful to the humans but grew and reproduced only when the environment selected it to grow and reproduce.
