Hello
Humans conduct internal fertilisation.
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The correct answer is that the shells of clams and other mollusks dissolve when the pH becomes more acidic.
This is because the shells of clams and other mollusks are made of calcium carbonate that is dissolved in acidic conditions. The pH needs to be low to dissolve calcium carbonate into it. It takes few days to dissolve the shell completely.
The question is incomplete. The complete question is:
Consider the following experiment: True-breeding tall pea plants are cut short before being pollinated to determine if there is an affect on the offspring. Which explanation for trait inheritance is this testing?
A Blended inheritance
B Gene theory
C An organism's experiences are passed to their offspring
D None of the above
Answer:
Gene theory
Explanation:
Gene theory is the proposition that genes are the basic units in which characteristics or traits are passed from one generation to another generation. Genes themselves, as derived from Mendelian theory are the basic units of heredity. The gene theory provides a basis for understanding how genes enable parents to transmit traits to next generation.
The experiment aims to discover weather the gene for tallness is still passed on to the offspring irrespective of the experience of the parents.
<span>The Excretory System</span>
Kidneys are important in homeostasis as they control the blood water level and the regulation of salt and iron contents within the body. See related links for more info. Kidneys are important in homeostasis as they control the blood water level and the regulation of salt and iron contents within the body.
hope that helps! :)
