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Gouri Lahoti
Subject: Science
, asked on 19/2/18
Isn't the answer wrong? How can we say that body design of a particular animal is BATTER than other? Aren't we EQUATING EVOLUTION AND PROGRESS??!!!
Q.36. In evolutionary erms, which among-bacteria, spider, fish and chimpanzee have a "body design? Why or why not?
Ans. Chimpanzee have the better body design as compared to others given. They are better adapted for locomotion, communication and thinking.
Answer
2
Dipesh Kumar Karesia
Subject: Science
, asked on 18/2/18
what is significance of specoation?
Answer
1
Champ Jee
Subject: Science
, asked on 17/2/18
What is the ratio of dihybrid cross of mendels experiment? What was the total number of recombinations.
Please explain.
Answer
2
Shivam
Subject: Science
, asked on 17/2/18
Pls ans this ques fast SCIENCE
Answer
1
Khushi Jain
Subject: Science
, asked on 16/2/18
Can we write the example of homologous organs like limbs of human and lizard and analogous organs like wing of bat n bird in the following que?
Give an example of characteristics being used to determine how close 2 species are in evolutionary terms
Answer
1
Romil Singh
Subject: Science
, asked on 14/2/18
name some intra utrine devices
Answer
2
Romil Singh
Subject: Science
, asked on 13/2/18
is organic evolution is same as evolution
Answer
2
U
Subject: Science
, asked on 13/2/18
plzz ans and no copy plzz
Answer
2
Champ Jee
Subject: Science
, asked on 13/2/18
Q.32. The diagram represents the following relationships:
(a) homologous organs
(b) analogous organs
(c) vestigial organs
(d) rudimentary organs
Answer
1
Champ Jee
Subject: Science
, asked on 13/2/18
The gene for red hair is recessive to the gene for black hair. What will be the hair colour of a child if he inherits a gene for red colour from his mother and a gene for black hair from his father? Express with the help of flow chart.(This means here, red colour is recessive trait and black colour dominant?)
Answer
2
Bhavyaa Trehan
Subject: Science
, asked on 12/2/18
Q14 b and. 15
Answer
2
Bhavyaa Trehan
Subject: Science
, asked on 12/2/18
Q 29 ans acc to me can be both a and b and pls ractify me if i am wrong
Q.29.
Select the set of homologous organs from the following :
(a) Wings of pigeon and a butterfly
(b) Wings of bat and a pigeon
(c) Forelimbs of cow, a duck and a lizard
(d) Wings of butterfly and a bat
Answer
4
Shrish Vaidya
Subject: Science
, asked on 11/2/18
solve 15th question plzzzzzz no links
Q.15.(a) The living matter seems to have come into being in sea water. Comment.
(b) Which vegetable helped humans to generate different vegetables by selection ?
Answer
2
Champ Jee
Subject: Science
, asked on 11/2/18
Define the following with an example:
i) Natural selection
ii) Reproductive isolation.
(2marks)
Answer
2
Vaishnavi Ramakrishnan
Subject: Science
, asked on 11/2/18
Mam i could not understand what an allele is?
and also what is law of segregation....
could u pls explain that again
Answer
2
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Q.36. In evolutionary erms, which among-bacteria, spider, fish and chimpanzee have a "body design? Why or why not?
Ans. Chimpanzee have the better body design as compared to others given. They are better adapted for locomotion, communication and thinking.
Please explain.
Give an example of characteristics being used to determine how close 2 species are in evolutionary terms
(a) homologous organs
(b) analogous organs
(c) vestigial organs
(d) rudimentary organs
Q.29. Select the set of homologous organs from the following :
(a) Wings of pigeon and a butterfly
(b) Wings of bat and a pigeon
(c) Forelimbs of cow, a duck and a lizard
(d) Wings of butterfly and a bat
Q.15.(a) The living matter seems to have come into being in sea water. Comment.
(b) Which vegetable helped humans to generate different vegetables by selection ?
i) Natural selection
ii) Reproductive isolation.
(2marks)
and also what is law of segregation....
could u pls explain that again