Please help on theese 9th grade evolution questions?

Question

Hi there, I need help on these questions. They are multiple choice, so ya, first person to give me all the CORRECT answers gets the best answer:

1. A species is a group of organisms that:
a. has the same number of chromosomes
b. interbreed
c. can interbreed and doesn't interbreed with others
e. lives in the same place

2. Jean-Baptiste Lamarck would agree with all of these statements expect:
a. You're eye color is determined by you're parents' eye colors.
b. Humans should no longer have an appendix.
c. Bob-tailed cats evolved after several generations of cats had their tails bitten off.
d. Snakes should have a pelvic girdle.

3. Natural selection on a trait can only occur if the trait is _______.
a. heritable
b. favorable
c. behavioral
d. morphological
e. a new mutation

4. Part of the theory of natural selection concerns the inheritance of traits by offspring from parents. Why was this originally a weakness in the theory?

Answer 1

1. b
2. c (i'm pretty sure)
3. b
4. I dont know

Answer 2

1. b
2. d (Lamarck believed in the heritability of traits developed during the indifividual's lifetime.)
3. A
4. Because at the time, the manner through which genes were passed on was not yet understood. We were not yet familiar with varying allelic forms demonstrated through Mendel's work with pea pods.

Answer 3

c,c,a, mendelian genetics was not discovered until well after darwin wrote on the origin of species