Amensalism

Q. Which among the following is an interspecific interaction in which neither of the interacting species are benefited?

1. Predation
2. Commensalism
3. Mutualism
4. Amensalism

Q. Which one of the following population interactions is widely used in medical science for production of antibiotics?

1. Parasitism
2. Mutualism
3. Commensalism
4. Amensalism

Q.

which population interaction is widely used in medical science for production of antibiotics and why

Q. A bird enters the mouth of a crocodile and feeds on parasitic leeches. The bird gets food and crocodile gets rid of the blood sucking leeches. Both the partners can live independently. Such an association is

1. Mutualism
2. Amensalism
3. Commensalism
4. Protocooperation

Q.

Identify the fungus with medicinal importance.

Q. In September 2001, which of the following was used as a bioweapon agent in America?

1. Botulinum toxin
2. Bacillus anthracis
3. Poliovirus
4. HIV

Q. Match the following :-

	Population		Example
a	Predation	I	Cuscuta and hedge plants
b	Commensalism	II	Balanus and Chathamalus
c	Parasitism	III	Cactus and moth
d	Competition	IV	Orchid and mango

1. a-III, b-IV, c-II, d-I
2. a-IV, b-III, c-II, d-I
3. a-I, b-III, c-II, d-IV
4. a-III, b-IV, c-I, d-II

Q. Study the following interactions and select the option stating the incorrect match among the following population interactions.

	Species A	Species B	Population interaction
1	+	+	Mutualism
2	-	-	Competition
3	-	0	Commensalism
4	+	-	Parasitism

1. 1 and 2
2. 2 and 4
3. Only 3
4. Only 4

Q. Match the following :-

	Population		Example
a	Predation	I	Cuscuta and hedge plants
b	Commensalism	II	Balanus and Chathamalus
c	Parasitism	III	Cactus and moth
d	Competition	IV	Orchid and mango

1. a-III, b-IV, c-I, d-II
2. a-I, b-III, c-II, d-IV
3. a-IV, b-III, c-II, d-I
4. a-III, b-IV, c-II, d-I

Q. In September 2001, which of the following was used as a bioweapon agent in America?

1. Botulinum toxin
2. Bacillus anthracis
3. Poliovirus
4. HIV

Q. Certain millipedes and silver fish live in nest of army ant feeding on their refuse. The relationship is

1. Commensalism
2. Mutualism
3. Protocooperation
4. Scavenging

Q.

Competition and Ammensalism are which type of interactions:

1. -, - and -, 0

2. +, 0 and +, +

3. -, - and +, 0

4. +, - and -, +

Q. Assertion :Cyclostomes have sucker mouth. Reason: They are Jaw-less.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

Q. Which one of the following population interactions is widely used in medical science for production of antibiotics?

1. Parasitism
2. Mutualism
3. Commensalism
4. Amensalism

Q. Amensalism is an association between two species where:

1. One species is harmed and other is benefited
2. One species is harmed and other is unaffected
3. One species is benefited and other is unaffected
4. Both the species are harmed.

Q. Which of the following is the advantage of social dominance hierarchies?
I. keep lowers on the pecking order from being abused.
II. Reduce interference competition.
III. keep organisms that are closely related closer together.

1. I is true.
2. II is true.
3. III is true.
4. I and II are both true.
5. I and III are both true.

Q.

Unscramble the letters to find a word that is related to microbe

TONIATIBCI- A substance that kills microbes or prevents them from growing.People us it to treat infections

Q. By all of the following ways, bacteria can become resistant to the antibiotic, except -

1. Moving away from the drug.
2. Becoming impermeable to the drug.
3. Modifying the target of the drug.
4. Making enzymes that inactivate the drug.

Q. Given below are few common population interactions. Choose the option which matches A and B correctly.

Species 1	Species 2	Species 3
-	-	A
+	-	B

1. A - Parasitism, B - Competition
2. A - Competition, B - Parasitism
3. A - Competition, B - Commensalism
4. A - Parasitism, B - Commensalism

Q.

Competition and Ammensalism are which type of interactions:

1. -, -

2. +, 0

3. -, +

4. +, -

Q. Which one of the following population interactions is widely used in medical science for the production of antibiotics?

1. Parasitism
2. Mutualism
3. Commensalism
4. Amensalism

Q. Antibiosis is a type of interspecific relationship in which

1. both are benefited
2. one-species is harmed and other is benefited
3. both are harmed
4. adverse effect on one but the other is not affected

Q. Penicillium kills the bacterium Staphylococcus. This sort of relationship is called

1. Commensalism
2. Predation
3. Ammensalism
4. Mutualism

Q. Which of the following lives in commensal relationship with certain shrimps?

1. Proterion (Neptunes cup)
2. Euspongia (Bath Sponge)
3. Euplectella (Venus flower basket)
4. Spongilla (Fresh water sponge)