Answer: option A - an increase in the height of the sound wave
Explanation:
Loud sounds are carried by waves that have a higher amplitude (height between peak and trough) than quiet sounds. The bigger the amplitude of a sound wave, the louder it sounds to our ears.
So, the perceived increase in the volume of sound is best explained by an increase in the height of the sound wave
Answer:
YES. This information is enough to assume that neither of the blood groups dominates over the other one.
Explanation:
<u>Available data:</u>
- A man with blood group B ----> Genotype IBIB or IBi
- A woman with blood group AB ---> Genotype IAIB
- Their daughter has blood group AB --> Genotype IAIB
The fact that the daughter´s genotype is IAIB tells us that she got the IA allele from the mother, who is IAIB, and the IB allele from his father, who is IB-.
- If blood type B was dominant over A or AB, then the daughter should have Blood type B.
- If blood type A was dominant over B or AB, then the daughter should have Blood type A.
- Blood type AB tells us that both types are being expressed, A and B.
The fact that the daughter inherited one type of allele from each parent, but she is expressing the blood type AB, suggests that neither of the alleles dominates the other one. This is an example of co-dominance, where the heterozygote phenotype is an additive expression of both of the parents' genes.
This is enough information to assume that neither of the blood groups dominates over the other one.
<u>Answer</u>: B. Basic needs, such as food and water, will be scarce.
As the population increases, the resources necessary to feed the additional persons will also increase. However, basic resources such as food and water are not unlimited. Some countries have more and some less.
Thus, the amount of available drinking water will decrease as well as the available farmland. Due to more mouths to feed, food insecurity will increase as it is uncertain if it is possible to adequately feed the new population.
Answer:
The correct answer is:
a)FADH2
c)GTP
e)NADH
Explanation:
The Citric acid cycle(TCA) also known as the <em>Kreb cycle,</em> is a focal metabolic center of the cell. It is a sequence of chemical reactions in which the acetyl portion of acetyl CoA is degraded to carbon dioxide and hydrogen atoms.These reactions all occur in the matrix of the mitochondria. This cycle is also an important source of precursor for other molecules such as amino acids, nucleotide bases cholesterol etc. The function of the citric acid cycle is the gathering of high-vitality electrons from carbon fuels. The citric acid cycle removes electrons from acetyl CoA and use it to reduce NAD and FAD into NADH2 and FADH2 respectively.
<em>Overall, The citric acid cycle oxidizes two carbon units(from acetyl CoA) and produces two molecules of carbon dioxide, one molecule of GTP and high energy electrons which are present in the form of NADH2 and FADH2</em>
The correct answer is letter B, the age range of the skull is less than 10 years old. Teeth are also a form of bone that develop within the skull. Its structure helps archaeologists determine the age of fossils that they dug up from the soil. Children lack some prominent features compared to adults because their bodies are still growing and developing into maturity.
