MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Species

Study the fou...

Question

Study the four statement (A-D) give below and select the two correct ones out of them.

(A) Definition of biological species was given by Ernst Mayr.
(B) Photoperiod does not affect reproduction in plants
(C) Binomial nomenclature system was given by R. H. Whittaker.
(D) In unicellular organism, reproduction is synonymous with growth.

The two correct statements are :

A

A and D

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

B

B and C

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

C and D

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

A and B

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A A and D
Statements "c" and "d" are correct.
The definition of biological species was given by Ernst Mayr. In unicellular organisms, reproduction is synonymous with growth.

Photoperiod affects the reproduction in plants by regulating the flowering timing of the plants. Most plants are sensitive to photoperiod, not only for generative development but also in many other aspects, such as seed germination, leaf formation rate, leaf blade length and width expansion, dry matter production and its partitioning.

Carolus Linnaeus gave the binomial system of nomenclature.
R. H. Whittaker proposed 5-kingdom classification of living organisms.

Suggest Corrections

thumbs-up

0

Similar questions

Q. Study the four statements (a–d) given below and select two correct ones out of them:

1. A lion eating a deer and a sparrow feeding on grain are ecologically similar in being consumers

2. Predator starfish Pisaster helps in maintaining species diversity of some invertebrates

3. Predators ultimately lead to the extinction of prey species

4. Production of chemicals such as nicotine, strychnine by the plants are metabolic disorders

The two correct statements are

Q. Read the given statements.

(a) .............. are collectively called .............. as all of these are seedless plants and have inconspicuous reproductive organs.
(b) .............. are collectively called ................... as they are seeded plants and possess conspicuous reproductive organs.
(c) The scientific nomenclature of organisms used today was developed by ............ and consists of ................ and species name.
(d) Class Aves consists of ................. animals while class Reptilia consists of ................ animals.

Select the option which correctly fills the blanks in any two of the above statements.

Q. A few statements with regard to sexual reproduction are given below.
(i) Sexual reproduction does not always require two individuals.
(ii) Sexual reproduction generally involves gametic fusion.
(iii) Meiosis never occurs during sexual reproduction.
(iv) External fertilisation is a rule during sexual reproduction.

Choose the correct statements from the options below.

Q. Consider the following statements with respect to reproduction in the lower living organisms
(a) Organisms like yeast and Planaria reproduce asexually by means of budding
(b) True regeneration is observed in Hydra
(c) Protonema of mosses multiply by fragmentation
(d) In unicellular organisms like bacteria, algae, and Amoeba, reproduction is synonymous with growth, i.e., an increase in the number of cells.

Select the two correct statements out of the four (a-d) given below about lac operon.

(a) Glucose or galactose may bind with the repressor and inactivate it.

(b) In the absence of lactose the repressor binds with the operator region.

(c) The z gene codes for permease.

(d) This was elucidated by Francois Jacob and Jacques Monod.

The correct statements are :

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Taxonomy Triangle

BIOLOGY

Watch in App

explore_more_icon

Explore more

Standard XII Biology

Join BYJU'S Learning Program

CrossIcon