Question

I have 7 questions for my Biology B class, reply saying you will answer the questions and i will post them. I WILL GIVE A MEDAL AND BECOME A FAN!!!(:

Answer 1

Post your questions .May be I could help you

Answer 2

Okay hang on it might take a little while for me to type them all

Answer 3

In biology, a trait that arose in an ancestor and is passed along to its descendants is referred to as a
a) derived character.
b) taxonomic group
c) molecular clock
d)physical similarity
This is the first one, i will just post them one at a time.

Answer 4

its Derived Character

Answer 5

A farmer sprays insecticide on his crops to kill unwanted insects, most of the insects die, and the chemicals have the effect of damaging the DNA of insects that are not killed. Which of these has happened?
a) sexual selection among the insects has changed the gene pool
b) genetic equilibrium has been maintained
c) mutations have arisen that may be altered allele frequencies
d) individuals with new genes have immigrated into the population

Answer 6

its C

Answer 7

often, the second part of the scientific name is
a) a description of the trait or habit
b) the same for other members of the same genus
c) capitalized if it derives from a proper name
d) different in different locations

Answer 8

its A often, the second part of a scientific name is a Latinized description of a particular trait

Answer 9

the three-domain system recognizes fundamental differences between two groups of
a) prokaryotes
b) eukaryotes
c) proists
d) multicellular organisims

Answer 10

its Prokaryotes

Answer 11

A polygenic trait can have
a) many possible genotypes, but few possible phenotypes.
b) many possible genotypes, producing many possible phenotypes.
c) fewer phenotypes than most single-gene traits.
d) fewer genotypes than most single-gene traits.

Answer 12

many possible genotypes, producing many possible phenotypes.

Answer 13

the situation in which allele frequencies in the gene pool of a population remain constant is called
a) evolution
b) genetic drift
c) genetic equilibrium
d) natural selection

Answer 14

Sorry OS is so lag ~.~
its C genetic equilibrium

Answer 15

Thats okay!!(:
Which is the first step that occurred in the spectation of the Galapagos finches?
a) behavioral isolation
b) ecological isolation
c) ecological competition
d) founders arrived

Answer 16

Im not sure about this .May be C . but not sure :)

Answer 17

Okay! And here's the last one!!
geologists use _________ to determine a rock layer's age.
sorry for this one there is no multiple choice.

Answer 18

fossils

Answer 19

Ohhh, duh! I should have known that one!! Lol, well thanks for all the help, you're awesome!!!(: (:

Answer 20

you're most welocme dear :)

Answer 21

ops welcome * :P