Question
Draw a cell showing the anaphase stage.
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Explain:
Effects of sex hormones at puberty.
Effects of sex hormones at puberty.
Give the reason:
A person after consuming alcohol walks clumsily.
A person after consuming alcohol walks clumsily.
SHORT ANSWER TYPE QUESTIONS
Mention three protective and three regulatory functions of blood.
Mention three protective and three regulatory functions of blood.
Given below is the diagram showing sex determination in humans. Read the information and fill in the blanks:
Sex determination in humans is dependent on the combination of (i) __________ inherited from both parents. Females typically have two (ii) __________ chromosomes, while males have two different chromosomes. During fertilisation, the father's sperm can contribute either an (iii) __________ or __________ chromosome to the offspring.If the offspring receives an $X$ chromosome from the father's sperm, it will develop into a (iv) __________. The combination of sex chromosomes received during fertilisation ensures genetic
(v) __________ and the continuation of the species.
→Sex determination in humans is dependent on the combination of (i) __________ inherited from both parents. Females typically have two (ii) __________ chromosomes, while males have two different chromosomes. During fertilisation, the father's sperm can contribute either an (iii) __________ or __________ chromosome to the offspring.If the offspring receives an $X$ chromosome from the father's sperm, it will develop into a (iv) __________. The combination of sex chromosomes received during fertilisation ensures genetic
(v) __________ and the continuation of the species.
The diagram given alongside is that of a developing human foetus in the womb. Study the same and answer the questions that follows:
Name the parts ‘1’ to ‘5’ indicated by guidelines
Name the parts ‘1’ to ‘5’ indicated by guidelines
Differentiate between :
character and trait.
character and trait.
SHORT ANSWER TYPE QUESTIONS
Given below are two statements which are incorrect. Rewrite the correct statements;
(i) Arteries carry blood away from the heart, while veins carry blood to the heart.
(ii) Capillaries are thick-walled blood vessels that transport oxygenated blood.
Given below are two statements which are incorrect. Rewrite the correct statements;
(i) Arteries carry blood away from the heart, while veins carry blood to the heart.
(ii) Capillaries are thick-walled blood vessels that transport oxygenated blood.
Define:
Diabetes insipidus
Diabetes insipidus
How do endocrine glands differ from other glands?
(i) Water molecules, oxygen, grana, hydrogen and hydroxyl ions, photons.
(ii) Destarched plant, iodine test, leaf washed in water, a leaf boiled in alcohol, placed in sunlight.
(ii) Destarched plant, iodine test, leaf washed in water, a leaf boiled in alcohol, placed in sunlight.