Many bacteria are able to pass small pieces of the hereditary information on their dna from one bacterial cell to another. this can sometimes result in an increase in the number of drug-resistant bacteria. what name is given to the process by which one bacteria transfers dna to another? a) sporolysis b) conjugation c) gamete transfer d) haploid translocation eliminate

The answer is CONJUGATION, (B)

The right answer is B) conjugation

Bacteria multiply by binary fission, asexually. A mother cell will give two genetically identical daughter cells, so genetic mixing is virtually non-existent. To overcome this, there are 3 major mechanisms of horizontal gene transfer:

* transformation: incorporation of naked DNA from the environment directly into the bacteria

* transduction: transfer of genetic material from one bacterium to another via a phage

* conjugation: transfer of DNA from one bacterium to another by direct contact.

answer: decrease

a limiting factor is the one which decrease the abundance, distribution and causes extinction of the population of species in a ecosystem. here, predators including hawks, owls and snakes are the limiting factor for the population of mexican free tailed bat.   although bats are nocturnal animals as they forge for food at night these predators also may remain active during night which can decrease the population of the mexican free-tailed bats. also, these bats eat only one type of insects that are moths. the food can also be a limiting factor as all 400 members are dependent upon same type of food needs that are moths. the decrease in the moth population can cause decrease in population size of the mexican free-tailed bats.

therefore, the scenarios will most likely to decrease the population size of the mexican free-tailed bats.  

he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?