One fourth means (one half) of (one half) .
So the 18 months must be two half-lifes.
The half-life of this particular isotope is 9 months.
Short-term regulation of feeding involves signals coming from the liver and GI tract. Stretch receptors send afferent signals through the vagal nerve fibers to the chemoreceptors in the stomach and proximal small intestine,
Short-term regulation food intake is primarily regulated by food signals resulting from both their preabsorptive action in the gut and their postabsorptive metabolism, as opposed to long-term food intake, which is regulated by adiposity signals. The first process, commonly referred to as short-term regulation, tries to consume enough energy to counteract what is being used up. It is typically believed that this short-term mechanism controls both the interval between meals and the amount of the meals.
Learn more about Short-term regulation here.
brainly.com/question/10882076
#SPJ4
Answer:
The texture of an igneous rock is dependent on the rate of cooling of the melt: slow cooling allows large crystals to form, fast cooling yields small crystals.In addition to texture, igneous rocks may are classified according to their chemical composition.
Explanation:
Answer:
Negative growth rate is when a population's average number of deaths is greater than its average number of births. Zero growth rate is when the average number of deaths equals the average number of births.
Explanation:
Answer:
To cross petunia plants/lines with pink flowers (F1) which were obtained by crossing plants with red and white flowers (parental generation). The presence of petunia plants with red or white flowers in F2 would evidence that this trait is under incomplete dominance.
Explanation:
Incomplete dominance is a type of relationship in which both alleles are expressed in heterozygous individuals, thereby resulting in a new phenotype. This type of allelic interaction is commonly referred to as 'the dilution of the dominant allele' in heterozygous individuals. Moreover, codominance refers to a type of allele relationship in which both alleles are expressed to an equal degree in heterozygous individuals.
