Answer:
Fossil fuels
explanation: Coal is one type of fossil fuel. This is a nonrenewable energy source whose extraction often damages the environment. Fossil fuels are made from decomposing plants and animals. These fuels are found in the Earth's crust and contain carbon and hydrogen, which can be burned for energy
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This description is unspecific and is confusing...
The nose has different functions mainly for inhalation of oxygen and exhalation of carbon dioxide which is called the respiration process or gas exchange. As a sensory organ, the nose has also another function which is olfaction, the ability to smell.
Olfaction in a biopsychological term, is the process by which sensory information recognized by the nasal receptors are transduced in a understandable and recognizable stimulus or rather perception, in simplest term is to smell.
Therefore, nasal receptors are the structures that send messages to the facial nerve which is responsible for sending the information to the brain for it to be perceived and acknowledge.
Answer:
Let ‘Xᶜ’ be the recessive allele for colour blindness and ‘X’ be the normal (dominant) allele.
Since Abby's father was colour blind, Abby must be a carrier for the same.
Which means Abby's genotype would be ‘XXᶜ’.
Now, Ryan is not colourblind which means his genotype would be ‘XY’.
Now, talking about their daughter, she would inherit a normal ‘X’ from Ryan and either ‘X’ or ‘Xᶜ’ from Abby.
Which means she wouldn't be colourblind but she might be a carrier of the disorder.
XXᶜ × XY
⬇️ ⬇️
X, Xᶜ X
↘️ ↙️
XX , XXᶜ
Their daughter will have either XX genotype or XXᶜ genotype.
And her chances of being colourblind thus, becomes zero.
Answer:
4. The given statement is false.
Correct statement: The pyruvic acid produced in glycolysis enters the mitochondria if oxygen is present in a cell.
Explanation: Pyruvate is transported into the mitochondria with the help of pyruvate translocase (transport protein located in the membrane of the mitochondria) where it is decarboxylated in order to produce acetyl-CoA.
5. The given statement is false.
Correct statement: In the matrix, pyruvic acid is converted to acetyl-CoA before the Krebs cycle begins.
Explanation: In mitochondrial matrix, pyruvate is decarboxylated to produce acetyl-CoA which enters the Krebs cycle.
Pyruvate is converted into lactic acid in the cytoplasm when cell undergoes lactic acid fermentation due to lack of oxygen such as in muscle cell.
6. The given statement is true.
Acetyl-CoA condenses with oxaloacetate (4-carbon compound) to produce citrate (6-carbon compound).
7. The given statement is True.
CO₂ is released as the byproduct of cellular respiration which is removed out of the body.
Other products such as NADH, and FADH₂ are used in electron transport chain which aids in the production of ATP.
