Answer is C. CO2 stays as HCO3- ions in the blood.Hey guys,
9 B (C means Carbon dioxide dissolves to make carbonic acid, BAD)
What do you guys think?
Hey guys,
I got:
1 C (A makes different combination of Alleles)
2 B (Anthrax)
3 B (Simple)
4 C (The word quarantine)
5 C (Text book answer)
6 C (Simple)
7 A (100 - (30x2) /2 )
8 B (Must be Bb allele's for a girl to be bb allele)
9 B (C means Carbon dioxide dissolves to make carbonic acid, BAD)
10 A (Simple, 2nd dot point)
11 D (B means that stomates closed at midnight, whats the need?)
12 C (Simple)
13 B (T-Cells will try to fight the foreign antigen???)
14 D (Best answer and signifies rapid change)
15 D (B is too much of an assumption and D seems the "best" answer)\
What do you guys think?
i agree cept for 4, which i think is A. C just repeats the question as the sick animals are already in a diff enclosure.Hey guys,
I got:
1 C (A makes different combination of Alleles)
2 B (Anthrax)
3 B (Simple)
4 C (The word quarantine)
5 C (Text book answer)
6 C (Simple)
7 A (100 - (30x2) /2 )
8 B (Must be Bb allele's for a girl to be bb allele)
9 B (C means Carbon dioxide dissolves to make carbonic acid, BAD)
10 A (Simple, 2nd dot point)
11 D (B means that stomates closed at midnight, whats the need?)
12 C (Simple)
13 B (T-Cells will try to fight the foreign antigen???)
14 D (Best answer and signifies rapid change)
15 D (B is too much of an assumption and D seems the "best" answer)
What do you guys think?
Answer is C. CO2 stays as HCO3- ions in the blood.
1st thing that came through my mind when i saw the question was dont both CO2 and O2 bind weakly to the Haemoglobin.And for 9 CO2 only binds weakly when it forms carbaminohaemoglobin (if it binded strongly more would be carried in this form) but like 8% can be transported as dissolved CO2, so C?
CO2 does mix with haemoglobin to make carboxyhaemoglobin..... or something like that. It binds like 28%, but it does not "stongly bind" as the B answer says. CO2 and water make carbonic acid, but most CO2 in the blood is kept as HCO3- ions so it can act as a buffer to keep the pH of blood around 7. In the nephron you're body actively reabsorbs carbonate ions just for that purpose.
1st thing that came through my mind when i saw the question was dont both CO2 and O2 bind weakly to the Haemoglobin.
&
Doesn't the word dissolve have connotations of becoming hydrated by the water in the plasma, so it'll form Carbonic acid. Wouldn't HCO3- ions would mean that it ionises?
um u sat for bio too?I got
1. C (mutations generate new alleles, whilst crossing over results in new allele combination. completely different).
2. B
3. B
4. A
5. C
6. C
7. A
8. B
9. C (not sure about this, could be B, discuss)
10. A
11. D
12. C
13. B
14. D
15. D
If you got these answers, then your guaranteed 15/15
14 isn't punctuated equilibrium. Rapid periods of evolution in Punctuated equilibrium refers to THOUSANDS OF YEARS, not just two or so generations. Sorry palHey guys,
I got:
1 C (A makes different combination of Alleles)
2 B (Anthrax)
3 B (Simple)
4 C (The word quarantine)
5 C (Text book answer)
6 C (Simple)
7 A (100 - (30x2) /2 )
8 B (Must be Bb allele's for a girl to be bb allele)
9 B (C means Carbon dioxide dissolves to make carbonic acid, BAD)
10 A (Simple, 2nd dot point)
11 D (B means that stomates closed at midnight, whats the need?)
12 C (Simple)
13 B (T-Cells will try to fight the foreign antigen???)
14 D (Best answer and signifies rapid change)
15 D (B is too much of an assumption and D seems the "best" answer)\
What do you guys think?
zzzGotta be D, stomata would close in the hottest time of the day, because it's a plant in a dry environment??
meh whateverD shows stomates less than half open during the WHOLE day. Plants can't photosynthesise with stomates half open. B shows them open during half the night (For respiration) and in early morning and dawn (to avoid midday heat but gain sunlight for photosynthesis).
I agree 100% ive been trying to argue this to my teacher14 isn't punctuated equilibrium. Rapid periods of evolution in Punctuated equilibrium refers to THOUSANDS OF YEARS, not just two or so generations. Sorry pal
I agree and thought that too9 B (C means Carbon dioxide dissolves to make carbonic acid, BAD)
so your saying its divergent evolution involving gradualism, which takes longer than thousands of years. D is the best answer.I agree 100% ive been trying to argue this to my teacher
i agree with answer C for 4. In a question about the quarantine dot point, they're not looking for an answer that involves vaccination, that was to throw people off. They were asking you to provide a solution to the problem of a disease spreading to another enclosure. If they had a vaccine already, there is no need to stop the disease spreading.Hey guys,
I got:
4 C (The word quarantine)
BUT the generations are given on the side, and the term "rapid" used when describing punctuated equilibrium refers to 10 000 years. The whole question only deals with 12 generations which deals with 1200 years at best. All im saying is that based on this evidence alone, it cant be D.so your saying its divergent evolution involving gradualism, which takes longer than thousands of years. D is the best answer.
so your saying its divergent evolution involving gradualism, which takes longer than thousands of years. D is the best answer.
This is what I thought. This was a real case of "best" answer. A mixed b and C together, so it was the best choice.I think 4 is A because that involves both isolating the diseased animals (so they don't infect the others) and then vaccinating the others which would be the best way to prevent the spread I thought.
And for 9 CO2 only binds weakly when it forms carbaminohaemoglobin (if it binded strongly more would be carried in this form) but like 8% can be transported as dissolved CO2, so C?
Discuss.