Natural selection leads to evolution because the strongest survive and pass on their genes
Difference threshold is a minimum alteration in sensory intensity that is noticeable to an observer and can be coded into neural messages. Different threshold is the lowest level of encouragement that is essential to sense that a modification has happened the difference in the intensity between two stimuli that is necessary to yield a just notable difference also known as JND. The just notable difference depends not only on the intensity of the new stimulus but also on the level of stimulation already present which is the more intense the existing stimulus the larger the change must be to be noticeable.
The answer is b equal and opposite horizontal forces
SHELL products are derived from invertebrates.
<h3><u>Answer;</u></h3>
Independent Segregation
<h3><u>Explanation</u>;</h3>
- <em><u>According to Mendel's law of segregation, a sperm or egg carries only one allele for each inherited trait because allele pairs separate from each other during the production of gametes. Independent segregation occurs as a result of separation of homologous chromosomes during anaphase I of meiosis I.</u></em>
- The law of independent assortment on the other hand, states that each pair of alleles separate independently of the other pairs of alleles during gamete formation. Independent assortment results from the orientation of homologous chromosomes in metaphase I of meiosis I.