Download App

Diversity In Living Organisms — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceDiversity In Living Organisms3 Marks
Question

Write down four general characters of phylurn Arthropoda. Give two examples.

✓

Answer

  1. Triploblastic, bilaterally symmetrical and metamerically segmented animals.
  2. Body segments are grouped into two regions-cephalothorax (head and thorax together) and abdomen, or three regions-head, thorax and abdomen. Anterior part of body forms a distinct head, bearing sense organs and brain.
  3. Exoskeleton of cuticle, containing protein, lipid, chitin and often calcium carbonate is secreted by underlying epidermis and shed (moulted) at intervals.
  4. Alimentary canal is complete, mouth and anus lie at opposite ends of the body.

Example: Palaemon (prawn) and Peripatus.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Que-Ans (Each of 3 Mark )" from Diversity In Living Organisms→Diversity In Living Organisms — all question types→Science STD 9 question papers→Gujarat Board STD 9 question papers→Gujarat Board question paper generator→

Similar questions

List in the tabular form any three differences between the Aves and Mammalia group.

→
An unloaded truck weighing 2000kg has a maximum acceleration of 0.5m/s2. What is the maximum acceleration when it is carrying a load of 2000kg?
→
If the aluminium salt of an anion X is Al2X3, what is the valency of X? What will be the formula of the magnesium salt of X?
→
A cheetah starts from rest, and accelerates at 2m/s2 for 10 seconds. Calculate:
The distance travelled.
→

A ball of mass 0.5kg slows down from a speed of 5m/s to that of 3m/s. Calculate the change in kinetic energy of the ball. State your answer giving proper units.

→
Identify colloids and true solutions from the following.
  1. Vinegar.
  2. Muddy water.
  3. Mist.
  4. Aluminium paint.
→
A 8000kg engine pulls a train of 5 wagons, each of 2000kg, along a horizontal track. If the engine exerts a force of 40000N and the track offers a friction force of 5000N, then calculate:
  1. The net accelerating force and
  2. The acceleration of the train.
→
A certain species X has 17 protons, 18 electrons and 20 neutrons.
  1. What is such a particle called?
  2. What is the mass number of X?
  3. What is the atomic number of X?
→

Match the following column with correct answers.

  Column I   Column II
a. Fungal disease i. Dengue fever
b. Viral disease ii. Cholera
c. Protozoan disease iii. Skin disease
d. Bacterial disease iv. Malaria
→

What will happen if:

  1. Ligament gets over stretched?
  2. Heparin is absent in blood.
  3. Striated muscles contract rapidly for longer duration.
→