Give an example of characteristics being used to determine how close two species are in evolutionary terms...

Monjur Alahi

Give an example of characteristics being used to determine how close two species are in evolutionary terms.


0 like 0 dislike
1 views
Share with your friends

1 Answers

Salim Ahmed Kawsar

Call

Forelimbs of humans and wings of birds show,the closeness between these two species. Since, the forelimbs of a human and wings of birds have similar structure but perform different functions. Thus, the presence of homologous organs in different animals provides evidence for evolution by Heredity and Evolution by telling us that they have evolved from the same ancestor who had the basic design of the organ on which all the homologous organs are based.

0 like 0 dislike
1 views
Talk Doctor Online in Bissoy App
If the sum of first 7 terms of an AP is 49 and that of 17 terms is 289, find the sum of first n terms.

Sum of first n terms of A.P will be n2  Explanation : n1=7 Sn=49 we know that Sn = n/2{2a+(n-1)d} thus, Sn1=7/2(2a+6d)=49     =14a+42d=98     ... (1) x17 n2=17 Sn2=289 Sn2=17/2(2a+16d)=289      =34a+272d=578     ....(2) x7 from eq 1 & 2 238a +714d =1666 ...

1 Answers 2 views
According to the evolutionary theory, formation of a new species is generally due to

(b) accumulation of variations over several generations

1 Answers 1 views
In evolutionary terms, we have more in common with

(a) In evolutionary terms, we have more in common with a Chinese school boy.

1 Answers 1 views
Give an example of characteristics being used to determine how close two species are in evolutionary terms.

The presence of feathers in dinosaurs and birds indicates that they are evolutionarily related. Dinosaurs had feathers not for flying but instead these feathers provided insulation to these warm-blooded animals....

1 Answers 1 views
In evolutionary terms, can we say which among bacteria, spiders, fish and chimpanzees have a ‘better’ body design? Why or why not?

Evolution cannot always be equated with progress or better body designs. Evolution simply creates more complex body designs. However, this does not mean that the simple body designs are inefficient....

1 Answers 1 views
Propose three examples of characteristics used for hierarchical classification. Based on these, develop the definition of characteristics.

(i) Characteristics used for hierarchical classification of living organism’s are-  (a) Their cellularity, whether unicellular or multicellular  (b) The mode of nutrition  (c) The mode of reproduction  (ii) Characteristics mean features or qualities of...

1 Answers 1 views
The sum of the 4th and 8th terms of an AP is 24 and the sum of the 6th and the 10th terms is 44. Find the first three terms of the AP.

Solution: a + 3d + a + 7d = 24 Or, 2a + 10d = 24 Similarly, 2a + 14d = 44 So, 44 – 24 = 4d Or, d = 5 2a + 10x5...

1 Answers 2 views
Name, state and explain with an example the rule used to determine the direction of

Fleming's left hand rule : The direction of force which acts on the current carrying conductor placed in a magnetic field is given by Fleming's left hand rule. It states...

1 Answers 3 views
Amensalism is an association between two species where: a. one species is harmed and other is benefitted

c. one species is benefitted and other is unaffected

1 Answers 1 views
Which one of the following plants shows a very close relationship with a species of moth,

Answer is (2) Yucca 

1 Answers 1 views
X