What is the result of placing a red blood cell in a hypertonic solution ?
crenation
haemolysis
osmosis
plasmolysis
wilting
Correct answer is A
No explanation has been provided for this answer.
Two identical twin boys had different fingerprints. This proves that
the fingerprint is a sex-linked character
the genotypes of the twins are similar
the phenotypes of the twins are similar
there are morphological variations
there are physiological variations in the twins
Correct answer is D
Morphological variation includes aspects of the outward appearance i.e shape, structure, color, pattern, and size.
The part of the fruit which serves a protective function is called
endocary
epicarp
mesocarp
pericarp
testa
Correct answer is B
No explanation has been provided for this answer.
The modern method of classifying living things is based on a similarity of
colour
habitat
shape
size
structure
Correct answer is E
No explanation has been provided for this answer.
Which of the following is NOT a natural source of energy?
coal
electricity
food
sun
water
Correct answer is B
No explanation has been provided for this answer.