Answer: It is as a result of Genetic Mutation.
Explanation:
Mutation and sexual reproduction result in increased genetic variation.
Mutation is the change in genetic content or DNA of an organism. It can be as a result of mutagens or errors during DNA replication. When there is mutation in reproductive cells such as sperm or egg, it can be pass to the next generation. The new traits will become permanent if it is subject to natural selection.
Sexual reproduction involves the transfer of new genes from the parents and to the offsprings which lead to new phenotypes and these can help the organism to adapt to it's environment.
Answer: Lysosomes synthesize proteins from the recycled amino acids.
Explanation:
This is a cell organelle with a spherical sac shape, bounded by a single membrane.( Unlike chloroplast and mitochondrial which double membranes.) It contain digestive enzymes which is hydrolytic in nature, this splits molecules by addition of water molecules. The digestive enzymes are separated from other cell organelles because of autolysis/autophagic which is automatic discharge of digestive enzymes in a contained cell which destroy the whole cell.
T<u>hey release vesicles containing the enzymes towards the target structure,and the vesicle fused with the membrane of the target cell to discharged the hydrolytic enzymes for digestion</u>
They breakdown old and worn out cells organelles, or the whole cell (for example the breakdown of mammary glands after lactation. Lysosomes are also used to digest bacterial in white blood cells by ENDOCYTOSIS.
Note: RIBOSOMES play a role in protein Synthesis not LYSOSOMES.
Their average size is 0.1-0.5µm in diameter
Answer:
The sympathetic nervous system activates what is often termed the fight or flight response. Like other parts of the nervous system, the sympathetic nervous system operates through a series of interconnected neurons.
Explanation:
<span> Sand is insoluble in water and organic solvents. There are no possible attractions which could occur between solvent molecules and the silicon or oxygen atoms which could overcome the covalent bonds in the giant structure.</span>
Answer:
Many consumers are interested in buying from companies that consider animal welfare.
Explanation:
Factory farms, also known as Operators of concentrated animal feeding operations (CAFOs) are interested in maximizing their production efficiency to increase their profits, regardless of the animals´ health and growing conditions. These factories tend to prioritize rapid growth and production over animal welfare, which might be an important reason to think that they do not care about the quality of their product, more than they do about their earnings.
Since during the last years, there is a sharp increase in the people´s conscientization of animal welfare and the conditions in which they are grown, probably the most effective argument for the improved treatment of animals in CAFOs is that many consumers are interested in buying from companies that consider animal welfare.
People who care about animal conditions will not consume animal products from factory farms, which eventually ends by affecting these factories´ profits. If CAFOs improve animal treatment and get higher animal welfare standards, they will have more people consuming their products, which is basically their main interest.