Which one is not correct for a productive theory_____.

1. 1. It is predictive
   2. It discourages suggestion of different hypotheses
   3. It has explanatory power
   4. All of these

Stem of Psilophyton an example of psilogsida is differentiated into an underground rhizome and an aerial part both of which are _____branched.

1. 1. Isotomous
   2. Trichotomously
   3. Multichotomously
   4. Dichotomously

Deficiency of vitamin C will cause_____.

1. 1. Scurvy
   2. Beri-Beri
   3. Architis
   4. Night-blindness

Stunted growth of roots is due to the deficiency of_____ in plants.

1. 1. Phosphorus
   2. Potassium
   3. Magnesium
   4. Iron

Variety among amino acids is produced due to_____.

1. 1. R group
   2. NH2 group
   3. COOH group
   4. None of these

Tibia is a bone found in the_____.

1. 1. Skull
   2. Arm
   3. Face
   4. Leg

The molecules of living matter that provide building blocks are mostly based on_____.

1. 1. Nitrogen
   2. Carbon
   3. Hydrogen
   4. Ammonia

The scientific study of livings is called _____.

1. 1. Anatomy
   2. Geology
   3. Zoology
   4. Biology

Midgut in cockroach is a short narrow tube called_____.

1. 1. Stomach
   2. Hepatic caeca
   3. Gizzard
   4. Rectum

Sessile flowers have _____.

1. 1. No scent
   2. No pedicles
   3. Irregular shape
   4. No petals