Question

can you answer these

According to the concept of “survival of the fittest," if a population of birds eats worms that they find deep under ground by using their beaks, which members of the bird population would be more fit?
birds that have flatter beaks
birds that have longer beaks
birds that have wider beaks
birds that have brighter beaks

Which would least likely be a cause of natural selection?
adaptation
evolution
overpopulation
variation

Veronica wrote Charles Darwin’s main points on the board, but she made a mistake in one point.

1. Since more offspring are produced than an environment can support, organisms within a population must compete for resources to survive.

2. Due to variations within the population, some competitors will be better equipped for survival than others.

3. The best-equipped organisms will survive and will produce well-equipped offspring.

4. Variations that help with survival will be passed on to future generations and will rapidly change the whole population.

Which point is flawed as written above?
point 1
point 2
point 3
point 4

The map shows the allele frequency of sickled hemoglobin (HbS) and malaria endemicity in Africa.

mc027-1.jpg

Which statement best explains the relationship between HbS allele frequency and malaria endemicity in Africa?
When an area is malaria free, the HbS allele frequency is between 0 and 4.04.
When an area is holoendemic, the HbS allele frequency is between 0.52 and 4.04.
When an area is malaria free, the HbS allele frequency is between 12.64 and 18.18.
When an area is holoendemic, the HbS allele frequency is between 0 and 0.51.

Which statement would least likely be used to describe variation?
Variations are inherited differences between individuals of the same species.
Variations that decrease reproductive success are more likely to be passed on.
Variations may result in changes to an entire population after many generations.
Variations provide some individuals with an advantage.

Answer 1

Here are the answers:

1) birds that have longer beaks

2) evolution

3) point 4

4) When an area is malaria free, the HbS allele frequency is between 0 and 4.04.

5) Variations that decrease reproductive success are more likely to be passed on.