Answer: Only Options A, C and E are correct
A) Sympatric speciation is best described as a random event that disrupts the allele frequencies in a population
C) Sympatric speciation does not require geographic isolation.
E) Sympatric speciation can be due to sexual(mate) selection
Explanation:
Sympatric speciation is a random or naturally occurring event whereby organisms of the same species:
> live in the same territory or nearby territories ( i.e not living in isolation)
> DO NOT interbreed, but select a sexual mate from a much diverse territory which results in an uneven gene flow or disruption of alleles among the population of same species of the parents organisms.
Answer:
it becomes a positive ion
Explanation:
that is because when it loses an electron, then it has one more proton in comparison with the total number of electrons making it a positive ion
Answer:
The forces acting on the box became unbalanced when the third student started pushing.
Explanation:
The horizontal forces, friction and applied, were balanced until more force was applied than friction. Mass can't increase or decrease.
Answer:
The reference value that is expressed as a percentage of total calories is called as % daily value.
Explanation:
The % daily value tells about the the nutrients which are present in a single serving of food. They are mostly present on the Nutritional Fact Label for foods. The standard for the % daily value is set to 2000 calorie. 2000 calories are required for a healthy adult diet. But even if a person has a calorie uptake lower or higher then that, he/she can still use the % Daily Value as a guideline.
For example, If 2% vitamin C is written on a label than it defines that one serving of that product supplies 2% of the vitamin C that you require each day.
Answer:
The biomolecular data used for such calculations are usually nucleotide sequences for DNA, RNA, or amino acid sequences for proteins.
