Transport in Smaller Organisms

Q.

What is the most abundant elements in Human Body?

Q.

What are the most abundant elements in the body?

Q.

What is direct cell division?

Q.

How do amoeba recognize its food?

Q. Most multicellular eukaryotes form gametes by

1. Two chromosomal divisions and a single nuclear division.

2. Two nuclear divisions and two chromosomal divisions.

3. A single nuclear division and a single chromosomal division.

4. A single chromosomal division and two nuclear divisions.

Q. A seminar was conducted in a school on the topic 'Mode of transportation in different organisms'. There was an organism 'A' that uses brownian movements for the transportation of nutrients and oxygen. Identify the organism 'A'.

1. Jelly fish
2. Sponges
3. Amoeba
4. Spider

Q. What is the behavioural pattern, when young one of a species raised by a parent of another species, called?

1. Cross-fostering
2. Imprinting
3. Filial imprinting
4. Sexual imprinting

Q.

What is totipotency of a cell?

Q. Question 3
Will geographical isolation be a major factor in the speciation of an organism that reproduces asexually? Why or why not?

Q. Distinguish between equational division and reduction division.

Q. Choose the correct answers from the alternatives given .
Which of the following is not one of the four most common elements found in living organisms?

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

Q.

How are the modes of reproduction different in unicellular and multicellular organism?

Q. Heart of cockroach is a

1. Filled with blood having RBC
2. Muscular and tube like
3. Membranus
4. Absent

Q. Find the odd one out with reason.

Q. Assertion :A shark can stay at a desired level in water` without swimming Reason: It has a buoyancy regulating organ called as the swim bladder

1. If both the assertion and the reason are true and the reason and reason is the correct explanation of the assertion
2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
3. If the assertion is true but the reason is false
4. If both the assertion and reason are false

Q. Which of the following statement is wrong?

1. Serum is the liquid portion formed after blood clotting
2. Lymph is the link between blood and tissues
3. The xylem and phloem transport water and food in plants
4. In insects closed type of circulatory system is seen

Q. Blood acts as a medium of transport for nutrients.

1. False
2. True