Answer
Lamarckism, a theory of evolution based on the principle that physical changes in organisms during their lifetime—such as greater development of an organ or a part through increased use—could be transmitted to their offspring.
Lamarck believed that the stretching elongated the giraffe's neck, which became a useful characteristic and was passed onto future generations. This resulted in the length of the giraffe's neck increasing over time. It is now commonly accepted that Lamarck's ideas were wrong.
Answer: Option C - decomposers; they return biotic material to the abiotic component of the Earth
Explanation:
Decomposers are also known as SAPROPHYTES. They feed on and break down dead and decaying remains of plants and animals, thus enabling the release of certain compounds like ammonia, methane gas etc into the environment that then enrich/improve the soil fertility.
Answer and explanation;
The hydrophobic effect is the observed tendency of non-polar substances to aggregate in an aqueous solution and exclude water molecules. Hydrophobic interaction is mostly an entropic effect originating from the disruption of highly dynamic hydrogen bonds between molecules of liquid water by the non-polar solute.
Introduction of such a non-hydrogen bonding surface into water causes disruption of the hydrogen bonding network between water molecules.
Water dissolves molecules (proteins and nucleic acids) that display on their solvent-accessible surfaces groups that can h-bond [hydroxyl, carbonyl, ester groups; they're polar uncharged...also charged groups; protonated amines, carboxylates and phosphate ethers.
Molecules with internal h-bonds dissolve in water, some/all internal h-bonds may be in dynamic exchange with h-bonds in water
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Polar nature of water contributes to ability to dissolve non-ionic polar organic molecules, such as phenols, esters, amides; have large dipole moments and interaction with water dipole promotes solubility in water.
Human placental lactogen( hPL) hormone released during fetal development is primarily responsible for preparing breasts for lactation.
- Human placental lactogen also stimulates milk ,known as human chorionic somatomammotropin. It's made by the placenta. It gives nutrition to the fetus. secretion of milk is called lactation
- Mother milk contains all the nutrients that an child needs in the first 6 months of life, including fat, carbohydrates, proteins, vitamins, minerals and water. It's fluently digested and efficiently used. secretion of milk is called lactation. bone milk also contains bioactive factors that compound the child's immature vulnerable system, furnishing protection against infection, and other factors that help digestion and immersion of nutrients. mother milk also protect the child from disease.
To learn more about Human placental lactogen.
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