evolution

Question 1

define evolution:

Answer 1

the process where a group of species/organisms are born with a competitive advantage to adapt/survive in their environment. This species would grow larger over time.

Question 2

There are heritable trait variations within a new population

Answer 2

some bacteria are antibiotic resistant and some are not

Question 3

something changed in the environment that the population was in (or went into)

Answer 3

adding antibiotics was the change in the environment

Question 4

the environmental change put selection pressure on the population so that some variations had a competitive advantage for survival.

Answer 4

the antibiotics put selection pressure on the population so that bacteria that are antibiotic resistant, will have a more competitive advantage for survival.

Question 5

when there are resources available, those organisms that survive will reproduce and they will make more organisms with the same traits/variations.

Answer 5

the bacteria that has antiobiotic resistance will survive and make more organisms with the same traits/ variations

Question 6

Describe Darwin’s theory of natural selection

Answer 6

changes in an organism during its lifetime do not affect the traits passed to its offspring, and doesn’t effect evolution.

Some organisms will have heritable trait variations that give a competitive advantage for survival

organisms are born with these traits

Question 7

define competitive advantage:

Answer 7

more likey to have a chance of survival

Question 8

define selection pressure:

Answer 8

a change in the environment that gives a group of organisms a better chance of survival.

Question 9

What happens to antibiotic-resistant bacteria over time?

Answer 9

the non-antibiotic-resistant bacteria would eventually get all killed, while the antibiotic-resistant bacteria would reproduce every 20 minutes