The diploid number of a roundworm species is 4. Assuming there is no crossover, and random segregation of homologs during meiosis, how many different possible combinations of chromosomes might there be in the offspring?

How does the nervous system and immune system work together

What are genetic mutations

Energy resources are required for which of the following? all nations industrial nations largely populated nations small rural nations

Which is an example of an abiotic limiting factor? a. the number of predators in an ecosystem b. the amount of nutrients in the soil in an area c. the amount of green leaves and grasses available d.

Which molecule could be best used as a supply of quick energy?

Which statement best describes the relationship between activation energy and rate of reaction? O Increasing the activation energy can increase the rate of a reaction. O Reducing the activation energy can increase the rate of a reaction.

Definition: this is a haploid cell with half the reproductive information from the parent.

Does a cell use energy when molecules diffuse in or out of the cell? Why?

Below is a list of possible challenges. Check all errors that you mentioned in your answer. Traits other than beak type might affect natural selection. It could take many generations to observe adaptions to a population.

A farmer dug a well but did not find any water Which reasons most likely explain why the farmer did not find water? Check all that apply.