Download App

PART - 1 - Unit I : CH - 4 Animal Kingdom — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYPART - 1 - Unit I : CH - 4 Animal Kingdom3 Marks
Question
What is called blood circulation system? How many types are there? Describe each with examples.
✓

Answer

Blood Circulatory System : In humans, the system that transports O2, and CO2, nutrients, excretory substances and secretory substances from one part of the body to another is called blood circulation system.
There are two types of circulatory system:
(1) Open circulatory system: In this type of circulation, the blood is pumped out of the heart and the cells and tissues are directly bathed in it
(2) Closed circulatory system: In this circulatory system the blood is circulated through a series of vessels of varying diameters (arteries, veins and capillaries). Like- human.

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 "3 Marks Question" from PART - 1 - Unit I : CH - 4 Animal Kingdom→PART - 1 - Unit I : CH - 4 Animal Kingdom — all question types→BIOLOGY STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

What are Casparian strips? Write any two differences in the epidermis of monocotyledon and dicotyledon leaves.
→
Amrita and her mother planted small seedling of plant in the soil in their garden. After few months, while playing with her friends Amrita observed that the seedlings which they planted had grown into a mature and flourishing plant. Amrita was curious to know this and asked her mother about this.
  1. Name the process that causes growth in living organisms.
  2. Discuss about the process that how growth occurs in living organisms.
  3. Analyse and write about the common sites of mitosis in plants as well as in animals.
  4. What values were shown by Smita?
→
What is meant by tertiary structure of proteins?
→
How is the study of plant anatomy useful to us?
→
Look at leaves of the same plant on the shady side and compare it with the leaves on the sunny side. Or, compare the potted plants kept in the sunlight with those in the shade. Which of them has leaves that are darker green ? Why?
→
Many discoveries in science have been accidental. This is true for plant hormones also. Can you justify this statement by giving an example? Also what term is used for such accidental findings?
→
Enumerate the economic significance of bryophytes.
→
What is the difference between florigen and other plant growth hormones?
→
The energy yield in terms of ATP is higher in aerobic respiration than during anaerobic respiration. Explain.
→
The two kingdom classification system placed bacteria, algae, blue-green algae, fungi, mosses, ferns, gymnosperm, and angiosperms, together under one single kingdoms-Plantae. According to you, what could have been the basis of such classification.
→