Answer:
Because of their food.
Explanation:
Phosphorus can be found in foods (organic phosphorus) and is naturally found in protein-rich foods such as meats, poultry, fish, nuts, beans and dairy products.
Pond ecosystem considered as an open ecosystem because pond is always open . There is an interaction of pond with atmosphere , due to which it ecosystem becomes open.
Answer:
a) 
b) 
c) 
d) 
e) 
Explanation:
When two heterozygous plants with genotype Bb are crossed, following offspring are produced
Bb * Bb
BB, Bb, Bb, bb
so the probability of blue offspring is
and the probability of white offspring is 
a) Probability of all 4 peas as blue

b) Probability of 3 blue and 1 white

c) Probability of 2 blue and 2 white

d) Probability of 1 blue and 3 white

e) Probability of all white

So the teachers can focus instructions to meet all the students academic needs
Answer:
The probability that the victim not getting hepatitis virus is 0.4547
Explanation:
We have given that 7 of 48 units of blood is contaminated with virus causing hepatitis.
So probability of getting hepatitis virus is 
So probability of not getting hepatitis virus = 1 - 0.1458 = 0.8542
It is given that severely injured accident victim given 5 units of plasma
So probability that the victim not getting hepatitis virus = 
So the probability that the victim not getting hepatitis virus is 0.4547