Question

When environmental conditions are unfavorable, why is it an advantage for green algae to reproduce sexually?
a. They are multicellular when conditions are unfavorable, which favors sexual reproduction.
b. Sexual reproduction produces larger numbers of offspring in less time.
c. Sexual reproduction produces offspring that have greater genetic variety and durable zygotes that can help green algae species survive unfavorable conditions.
d. Sexual reproduction produces multicellular algae instead of unicellular algae. Multicellular algae are better able to survive harsh conditions.

Answer 1

@Kamille

Any ideas?
I'm leaning on C.

We do know that sexual reproduction does create more genetic variety.

And genetic variety would give a population a greater chance of survival,
when pitted against natural selection.

On the other hand, I know very little about algae.

Answer 2

I'm asking Kamille. Not you.

Answer 3

well, it can't be "a", because they can't become from single celler to mutlicellar when it is time ro reproduce, can they?:)) and c..well, they are single cellers, so I think they reproducs by mythosis (dividing). But I am not sure...

Answer 4

and! where is mhytosis there are no "genetic" variaty

Answer 5

http://www.buzzle.com/articles/reproduction-in-algae.html

Answer 6

hahah sorry all! I have misunderstood the question!!! I didnt read "sexually:, so they can reproduce by spores. Well, then c is the answer!

Answer 7

Single celled organisms, like bacteria, divide through something called "binary fission."

You're right that mitosis doesn't really produce genetic variety,
but it's not quite the same as sexual reproduction, you see.

Answer 8

@ballerina789

It seems Kamille and I both lean on C.

Your call.

Answer 9

Yup, I got it right. Thanks guys

Answer 10

it's C

Answer 11

Ya, I know