Please!! Please!! Help Me??

Question

Biology question that no one i know could answer!

Certain whale species were huntd to near extinction. with a moratoriumon hunting them, their populationsizes have expanded. which is true?

A. The population has recovered and have demonstrated the populations have the potential to recover completely

B. Whale species have a higher reproductive rate

C. Hunting can refresh and increase overall fitness

D. Hunting is a form of stabalizing selection

E. The populations may still be indangered because they have little variation

Thank you for your help!

Answer 1

hard!!!!!!!!!!!!!!!!!!!!!

anyway i think

B. Whale species have a higher reproductive rate

Answer 2

I can tell you the answer is definitely not B,C,D. My guess is A because I do not like how E is worded at the end. Yes, they may still be endangered, but the end "because they have little variation" contradicts the first part to an extent because it says that their populations have expanded. And variation in what? Reproductive capacity? It isn't clear.

Answer 3

I would say the E. is closest to the truth.  Whales are still  endangered.  But I disagree with the part about the continued endangered status being because they have little variation.  That may be so, but Japan is still hunting whales.

Most people think whaling stopped years ago.  The truth is that whaling never ended.  Thousands of whales are still being killed each year and all species of whales are at risk.

Japan is leading the effort to kill as many whales as possible.  They just announced their intention to resume commercial whaling.  It seems that killing over a thousand whales each year under scientific whaling isn't enough.  Japan wants to begin clearing all the whales from all the oceans.

Japan's leaders say that whales are just eating too many fish and that is why the fishing industry is doing poorly.  It couldn't be that thousands of fishing boats are taking fish faster than they can reproduce. It doesn't matter to Japan that the favorite food of whales includes sand eels and plankton, not the species of fish important to humans.

There is one undisputed fact.  Two hundred years ago there were about two million more large whales in the oceans.  Whaling records show that during the last two centuries, two million blues, fins, right whales, humpbacks, sei, minke, bowhead and sperm whales were killed and processed by whalers.

But while these whales were eating and playing and raising their families, the fish populations were enormous!  There was no shortage of cod, swordfish, mackerel or any other species.

The fishing fleets caused the decline in fish.  Period.

Japan is regularly condemned for its annual whaling missions.

But this year's Antarctic expedition was particularly controversial because, in addition to 935 minke whales and 50 fin whales, the fleet intended to kill up to 50 humpbacks.

It was the first time Japan had targeted the humpbacks since a moratorium was introduced in the mid-1960s - when the species had been hunted almost to extinction.

Friday, 21 December 2007

A controversial Japanese mission to hunt humpback whales in the Antarctic has been temporarily abandoned, a top government official says.

Nobutaka Machimura said the humpback hunt would not go ahead - although the fleet will still hunt about 1,000 other whales in the area.

The BBC's Chris Hogg, in Tokyo, says Japan is now unlikely to chase the humpbacks for at least a year.

Ember (Likes to watch people)

http://www.youtube.com/watch?v=QXPKFpVHj...

Thorn (Blows perfect bubble rings)

http://www.youtube.com/watch?v=6yifxqCgl...

Salt and Wasabi  (The most famous humpback whale and her 9th calf)

http://www.youtube.com/watch?v=1FmTa5GmS...

Sockeye  (He is physically-challenged)

http://www.youtube.com/watch?v=MpM3yrqke...

Answer 4

I would think A or B but I'm unsure!

Answer 5

Given the information in the question, there are two possible answers: A and E.

A because while the population has not completely recovered, the population has expanded.

E is true of many populations that go to near extinction: since there are so few individuals from whom the recovered population has descended, there is much less variation than in a population that has not had a bottleneck event.  Thus, if the environment changes, they many not have the variation necessary to survive.

Answer 6

The question is much to vague. You could easily argue for A, C or E.

C and E overlap as the genetic diversity decreases to whales which have genes enabling them to avoid hunting.

A and E are still impossible to pin without figures. But for some reason E uses "may" while A uses "has" mixing definite and potential.

Gah. This is just a horrible question.

Answer 7

I think it is E, just because they are no longer being hunted doesn't change the time it take for them to become mature.  And less mature whales out there mean a lower population for breeding.