module 2

Which statement describes one difference between mitosis and meiosis in animal cells?

. Mitosis produces two daughter cells, and meiosis produces four daughter cells

describes the relationship between an allele and a gene?

An allele is a variation of a gene that can be expressed as a phenotype.

Which statement is true for all prokaryotic and eukaryotic organisms?

Both types of organisms assemble proteins through transcription and translation

New technologies enable oils to be extracted from plants to make renewable biodiesel fuel. Scientists have altered the genome of a specific plant species to increase the amount of oil produced by each plant. Which statement explains why this technology most likely benefits farmers?

It increases the value of each acre of land cultivated.

Which statement best describes the process by which the millions of body cells that form a housefly can all contain the same genetic information?

Original DNA is duplicated during replication and then distributed into two new cells

Which statement best describes a contribution that decomposers make to an ecosystem?

They increase the recycling of carbon-containing molecules.

Most of the water on Earth is located in the oceans and has a salinity of about 3.5%. Which statement best explains why rain is fresh water and has a very low salinity?

When water evaporates from oceans, most of the salt remains in the oceans

Strep throat is a common human illness often caused by the bacterium Streptococcus pyogenes. Which term best classifies the colonies of Streptococcus pyogenes in a person with strep throat?

a population

Describe one benefit and one limitation of how the Trichoplax can reproduce by simply dividing.

benefit- grow pop rapidly limitation- no genetic variation

A genetic mutation involving a single base causes an error that affects the sequence of the next 500 amino acids in a protein. Which type of mutation could have produced this type of error in the protein?

frame-shift

a species may impact a nonnative because

it will kill the nonnative due to disease and eating its food source

producer primary and secondary

pond lilies beaver blackbear

initial energy source

sunlight

Describe a cellular division process that could be used by Trichoplax when it reproduces asexually.

the cellular process called binary fission starts with one organism it then replicates and divides into two organisms both of wish are completely alike

The genetic material of two different individuals of the same species is analyzed. One individual has brown eyes. The other has blue eyes. Which characteristic for eye color would be the same for both individuals?

the location of the gene

What must be transmitted to new DNA strands during replication to maintain genetic information?

the sequence of bases from existing DNA strands

A researcher observes two species of frogs in the same area. Both species have a similar diet. One species breeds in fast-moving streams, while the other species breeds in ponds. Both species are similar in appearance and have very similar DNA. Which information provides the best evidence that these two species descended from a common ancestor?

the species' physical characteristics