A group of researchers procured some fish like animals and upon investigation the following characters were observed:
A. Endoskeleton was made of cartilage.
B. Ectoparasitic; as they were found attached on fish skin with their circular sucking mouth.
C. Paired fins and scales were absent, but 7 pairs of gill slits were present.
Which of the following species of animals did they consider to fit best with these characters?
Scoliodon $s p$.
Petromyzon $s p$.
Exocoetus $s p$.
Branchiostoma sp.
$$ \text { Match List I with List II with respect to chronology of evolution of life forms } $$
| List-I |
List-II |
||
|---|---|---|---|
| A. | About 65 mya | I. | Jawless fish probably evolved |
| B. | About 500 mya | II. | The dinosaurs suddenly disappeared from the earth |
| C. | About 350 mya | III. | Seaweeds and few plants probably existed |
| D. | About 320 mya | IV. | Invertebrates were formed and became active |
$\mathrm{A}(\mathrm{III}), \mathrm{B}(\mathrm{IV}), \mathrm{C}(\mathrm{I}), \mathrm{D}(\mathrm{II})$
$\mathrm{A}(\mathrm{I}), \mathrm{B}(\mathrm{II}), \mathrm{C}(\mathrm{III}), \mathrm{D}(\mathrm{IV})$
$\mathrm{A}(\mathrm{II}), \mathrm{B}(\mathrm{IV}), \mathrm{C}(\mathrm{III}), \mathrm{D}(\mathrm{I})$
$\mathrm{A}(\mathrm{II}), \mathrm{B}(\mathrm{IV}), \mathrm{C}(\mathrm{I}), \mathrm{D}(\mathrm{III})$
$$ \text { Match List I and List II } $$
| List-I |
List-II |
||
|---|---|---|---|
| A. | Progestasert | I. | Barrier made of rubber used by females |
| B. | Multiload 375 | II. | Oral contraceptive |
| C. | Diaphragm | III. | Hormone releasing IUD |
| D. | Saheli | IV. | Copper releasing IUD |
Choose the correct answer from the options given below:
$\mathrm{A}(\mathrm{III}), \mathrm{B}(\mathrm{IV}), \mathrm{C}(\mathrm{I}), \mathrm{D}(\mathrm{II})$
$\mathrm{A}(\mathrm{IV}), \mathrm{B}(\mathrm{II}), \mathrm{C}(\mathrm{I}), \mathrm{D}(\mathrm{III})$
$\mathrm{A}(\mathrm{IV}), \mathrm{B}(\mathrm{III}), \mathrm{C}(\mathrm{I}), \mathrm{D}(\mathrm{II})$
$\mathrm{A}(\mathrm{III}), \mathrm{B}(\mathrm{IV}), \mathrm{C}(\mathrm{II}), \mathrm{D}(\mathrm{I})$
The WBC count of a person's blood sample is $8000 / \mathrm{cu} \mathrm{mm}$. How many eosinophils and lymphocytes would be in the same blood sample approximately?
$300-500 / \mathrm{cu} \mathrm{mm}$ and $1200-1500 / \mathrm{cu} \mathrm{mm}$ respectively
$160-240 / \mathrm{cu} \mathrm{mm}$ and $1600-2000 / \mathrm{cu} \mathrm{mm}$ respectively
$300-500 / \mathrm{cu} \mathrm{mm}$ and $500-700 / \mathrm{cu} \mathrm{mm}$ respectively
$100-120 / \mathrm{cu} \mathrm{mm}$ and $160-200 / \mathrm{cu} \mathrm{mm}$ respectively
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