I believe it is A
Please make this the brainliest answer
Common mistakes and misconceptions
Natural selection is a mechanism, or cause, of evolution. Adaptations are physical or behavioral traits that make an organism better suited to its environment. Heritable variation comes from random mutations. Random mutations are the initial cause of new heritable traits.
Answer:
The correct answer is lysosomes
Explanation:
Tay-Sachs disease is a genetic metabolic disorder in which a lipid called GM2 ganglioside builds in the brain which results in spasticity and death in childhood.
This disease is also known as lysosomal storage disease. Lysosomes are the major organelle that contains enzymes to breakdown molecules. In Tay-Sachs disease deficiency of hexosaminidase A occurs in lysosomes and this enzyme is needed to breakdown fats.
So due to this deficiency, it results in the accumulation of fats in the brain and spinal cord causing Tay-Sachs disease.
Answer:
C Volcanic activity releasing carbon into the atmosphere.
Explanation:
The statement that best describes the cycling of carbon between the atmosphere and geosphere among the options is volcanic activity that leads to releasing carbon into the atmosphere.
Volcanic activities has to do with the activity of the geological layer of the earth that leads to the emission of gases, eruption of lava or the combination of the two.
When a volcanic activity leads to the release of carbon related gases such as carbon dioxide into the atmosphere, carbon is being circulated between the geosphere (the earth) and the atmosphere (the air).
Hence, the correct option is C.
If both of those sexual partners are faithful to each other, and only have sexual relations with one another, then there isn't a high probability that either of them is going to get HIV. If they want to be sure, they should use protection, such as condoms, to prevent getting HIV through body fluids. And they should always be honest with each other in case one of them has that disease.
