## poopsiedoodle 2 years ago Does anyone here take bio with flvs that can help me on 4.03? I'm rather confused on that one.

1. blues

Poopsie, what is 4.03? It's a number, plainly, but the rest of us don't know what that corresponds to in terms of unit material...

2. poopsiedoodle

It's a lab on population dynamics.

3. abb0t

rate at which a population increases in size, (assuming there r no density-dependent forces regulating the population) is: intrinsic rate of increase $\frac{ dN }{ dt }\frac{ 1 }{ N } = r$ There's also: $x(t) = ab^{\frac{ t }{ \tau }}$ a is the initial value of x (meaning x(0) = a b is a positive growth factor, tau is the time constant (the time required for x to increase by one factor of b). There's also (if this is for a upper division biology course that involves differentials), you might use: $\frac{ dx }{ dt } = kx$ x(0) = a a very simple and basic linear D.E: $\int\limits \frac{ dx }{ x } = k dt$ ln(x) = kt + C and incorporating the initial values, x(0) = a thus, ln(x) = kt + ln(a) and finally, $x = ae^{kt}$ and applies for a ≤ 0 It's different for a nonlinear DE, but I'll leave it at is for now. If you need more help, just ask.

4. Frostbite

You can also do a logistic differential equation if working with a bacteria population with limit resources and different environment.

5. poopsiedoodle

I actually just need help on the part where it asks me for a hypothesis. I have no idea what I'm supposed to be hypothesizing about.

6. megalover119

UGH YES IM TAKING AP BIO ON FLVS IT SUCKKKKKKSSS

7. abb0t

oh

8. TEndy1

I take bio in FLVS. if you ever need help I would be more than happy to. Just email me if you ever have any more questions. I help many others in Bio, and English.

9. poopsiedoodle

Well, if you could help me figure out what I'm supposed to hypothesize about, that'd be A+.

10. TEndy1

Okay. Is this biology 1 or 2?

11. poopsiedoodle

Bio 1. I didn't know there was a Bio 2. I thought the 1 was just there because of reasons o-o

12. TEndy1

No. I think that there is a bio 2. and i got at 100% on that assignment. And ican not exactly tell you what to hypothesis, but what i can do is give you what i said for the hypothesis, and you can either use that or put it into your own words.

13. TEndy1

Note: Read the procedures section before completing your hypotheses. 1. Part One: 1. Seal population 2,238 seal carrying capacity 290 whale population 20,000 whale carrying capacity 1,600. 2. Seal Population 2,238 Seal Carrying Capacity 250 Whale Population 15,000 Whale Carrying Capacity 1,300. 2. Part Two: 1. Seal growth rate 3% whale death rate 42% seal carrying capacity 250 whale carrying capacity 1,500. 2. Seal growth rate 15% whale death rate 50% seal carrying capacity 285 whale carrying capacity 1,400. 3. Part Three: (this is what i put under hypothsis)

14. poopsiedoodle

Okay, because I have no idea what I'm doing :P

15. TEndy1

Its all good. no worries. :)

16. TEndy1

is that all hun?

17. poopsiedoodle

For now :P

18. futurejockey

7. Climate change (an abiotic factor) has slowly decreased habitat for the Arctic seals. Predict how a reduction in habitat could change the capture efficiency of the killer whales in our simulation? How might this affect the population of both the whales and the seals?

19. futurejockey

i need help with this question