Biology is the study of life and living things. It can be divided into different areas that look at the structure, function, anatomy, and behavior of organisms.
-
Question 281: From which group of animals are the mammals generally believed to have most recently evolved?
Options:
A) Reptiles
B) Fish
C) Amphibians
D) Birds
Show Answer
The correct answer is C .
-
Question 282: If the gall bladder of a mammal is damaged, which of the following will be most seriously affected?
Options:
A) Glycolysis
B) Digestion of starch
C) Digestion of fats and oil
D) Digestion of proteins
Show Answer
The correct answer is C .
-
Question 283: An example of a caryopsis is
Options:
A) Guava
B) Maize grain
C) Coconut
D) Tomato
Show Answer
The correct answer is B .
-
Question 284:
The process of pollination involves the transfer of pollens from
Options:
A) II to III
B) IV to I
C) I to II
D) III to IV
Show Answer
The correct answer is A .
-
Question 285: The activity of ptyalin is likely to decrease with an increase in the concentration of
Options:
A) oxygen
B) starch
C) protein
D) acid
Show Answer
The correct answer is D .
-
Question 286: Epiphytes growing on the branches of trees provide an example of the relationship known as
Options:
A) parasitism
B) commensalism
C) saprophytism
D) holophytism
Show Answer
The correct answer is B .
-
Question 287: The hormone which tones up the muscles of a person in time of danger is from the
Options:
A) thyroid gland
B) pancreas
C) adrenal gland
D) liver
E) spleen
Show Answer
The correct answer is C .
-
Question 288: In the transverse section of the leaf of maize vascular bundles are arranged in
Options:
A) a row
B) one circle
C) alternate position
D) two circles
Show Answer
The correct answer is B .
-
Question 289: Hormones that help regulate blood calcium levels are produced by the
Options:
A) Adrenal
B) thyroid
C) pancreas
D) parathyroid
Show Answer
The correct answer is D .
-
Question 290:
Use the diagram to answer the question that follows:
The structure is adapted for
Options:
A) omnivores
B) herbivores
C) canivores
D) omnivores and canivore
Show Answer
The correct answer is A .