Assignment 19 for 9th

Assignment 19 for 9th
Q1 Define the following terms
(a) Health 
(b) disease
(c) Chronic disease
(d) Acute disease
Q2 What the difference between healthy and disease free?
Q3 What steps should we take to remain healthy
Q4 How will you differentiate between communicable and non-communicable diseases?
Q5 What is the relation between chronic disease and poor health?
Q 6 Name the organs affected ,pathogen and mode of transmission of the following in the following diseases
(a)  Cholera
(b)  meningitis
(c) Japanese encephalitis
(d) Jaundice
(e) polio
(f) Dengue
(g) Malaria
(h) Tuberclulosis
(i) Influenza
(j) Kala Azar
(k) Acne
(l) Sleeping sickness

HOTS

Q1 Fill the following blanks

1 Dengue is caused by --------and spreads by -----------

2 Malaria is Caused by -------------and spreads by ------------------

3 Swine flue is caused by ------------and spreads by -----------------

4 Aids  is caused by ---------------and spreads by-----------------

5 Rickets is ------disease while cholera is a ------------ disease (based on mode of transmission)

Q2 Ravi is always eating junk and remains unhygienic .Do you think he stands a high risk of catching infectious diseas ?give reason ?

Assignment 20 for 10th

Assignment 20 for 10th
Q1 why is Mendel known as father of genetic
Q2 which plant did Mendel choose for his studies and why ?(at least four reasons)
Q3 Define the following terms
(a) Monohybrid
(b)Dihybrid
(c) Dominant trait
(d)Recessive trait
(e) Phenotype
(f) Genotye
Q4 Which term did Mendel use for genes?
Q5 Prove the following laws with help of suitable example (make proper cross also)
(a)Law of dominance
(b)Law of seggregation
(c) Law of independent assotment
HOTS
Q1 Why did  not Mendel use the term gene?
Q2 Which traits follow law of domonance?(hint contrasting)
Q3 If  red flower plant (RR) is cossed with white flower plant .Find the genotype and phenotype of FI and F2 generation along with the underlying law?