Home
Class 11
BIOLOGY
Read the following statements I. in u...

Read the following statements
I. in unicellular organisms term growth and reproduction are used interchangeably
II. reproduction cannot be a defining character of living organism
III. Mules and worker bee are sterile
IV. Regeneration is a kind of asexual reproduction in which fragmented organism regenerates the lost part
How many of the above given correct?

A

I

B

II

C

III

D

IV

Text Solution

AI Generated Solution

The correct Answer is:
To determine how many of the given statements are correct, let's analyze each statement step by step. ### Step 1: Analyze Statement I **Statement I:** In unicellular organisms, the terms growth and reproduction are used interchangeably. - **Explanation:** In unicellular organisms, such as bacteria, growth and reproduction occur simultaneously. When a unicellular organism grows, it often reproduces through processes like binary fission, where one cell divides into two. Therefore, in this context, growth and reproduction can be considered synonymous. - **Conclusion:** This statement is **correct**. ### Step 2: Analyze Statement II **Statement II:** Reproduction cannot be a defining character of living organisms. - **Explanation:** While reproduction is a common characteristic of living organisms, it is not universal. Some organisms, such as mules (which are sterile hybrids) and certain worker bees, are alive but do not reproduce. Thus, reproduction cannot be considered a defining characteristic applicable to all living organisms. - **Conclusion:** This statement is **correct**. ### Step 3: Analyze Statement III **Statement III:** Mules and worker bees are sterile. - **Explanation:** Mules are hybrids of horses and donkeys and are typically sterile due to the non-functional nature of their gametes. Worker bees, which are female bees that do not reproduce, also do not produce eggs. Therefore, both mules and worker bees are indeed sterile. - **Conclusion:** This statement is **correct**. ### Step 4: Analyze Statement IV **Statement IV:** Regeneration is a kind of asexual reproduction in which a fragmented organism regenerates the lost part. - **Explanation:** Regeneration is a process observed in certain organisms (like planaria and lizards) where they can regrow lost parts. This process is a form of asexual reproduction because it does not involve the fusion of gametes and results in the formation of new individuals or parts from fragments. - **Conclusion:** This statement is **correct**. ### Final Conclusion After analyzing all four statements, we find that all of them are correct. Therefore, the total number of correct statements is **4**. ### Summary of Correctness: - Statement I: Correct - Statement II: Correct - Statement III: Correct - Statement IV: Correct ### Total Correct Statements: **4** ---
Promotional Banner

Similar Questions

Explore conceptually related problems

Read the following statement and select the correct option. Statement 1 : Reproduction cannot be considered as defining property of living organisms. Statement 2 : There are many living organisms which do not reproduce, e.g., mules, worker bees, etc.

read the following statements w.r.t. growth in living organisms. (a).In plants growth by cell division occurs continuously throughout their lifespan. (b) growth is a defining property of living organism. (c) cell division occurs in certain tissues to replace lost cells. (d) increase in body mass is considered as growth. (e) in majority of higher animals and plants and in unicellular organisms, growth and reproduction are mutually exclusive events. select the correct option.

Which of the following statements, support the view that elaborate sexual reproductive process appeared much later in the organic evolution ? (i) Lower groups of organisms have simpler body design. (ii) Asexual reproduction is common in lower groups. (iii) Asexual reproduction is common in higher groups of organisms. (iv) The high incidence of sexual reproduction in angiosperms and vertebrates. Choose the correct answer given below.