Tag: animal behaviour

Quizzes (4) Questions (149)

Questions Related to animal behaviour

Multiple choice biology animal behaviour ethology natural selection coordination in human beings- chemical control endocrine system in humans

Which of them is in tracheae group

  1. Crab-Centipede-Cockroach

  2. King crab-Scorpion-Housefly

  3. Spider-Peripatus-Mosquito

  4. Bedbug-Sandfly-Silkworm
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Bed bug ,sand fly silk worn are placed in tracheate  group of Arthropoda because they have trachae for  respiration Embryonic development of echinoderms shows a number of similarities with those of chordates .

Multiple choice biology animal behaviour ethology natural selection coordination in human beings- chemical control endocrine system in humans

The immunoglobulin abundant in colostrum is

  1. Ig G

  2. Ig M

  3. Ig A

  4. All of the above

  5. Ig E
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The yellow-coloured milk secreted by cattle soon after the birth of a calf is called as colustrum. Colostrum contains antibodies to protect the newborn against disease. Colostrum is known to contain immune cells (as lymphocytes) and many antibodies such as IgA, IgG and IgM. However, the most abundant immunoglobulin in colostrum is IgA.

Multiple choice biology animal behaviour ethology natural selection coordination in human beings- chemical control endocrine system in humans

The yellow-coloured milk secreted by cattle soon after the birth of a calf is called as 

  1. Chyme

  2. Chyle

  3. Cholesterol

  4. Colostrum
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The yellow-coloured milk secreted by cattle soon after the birth of a calf is called as colostrum. It is rich in antibodies that confer passive immunity to the newborn

So, the correct answer is 'Colostrum'

Multiple choice biology animal behaviour ethology natural selection coordination in human beings- chemical control endocrine system in humans

The table below gives the populations (in thousands) of ten species (A-J) in four areas (a-d) consisting of the number of habitats given within brackets against each. Study the table and answer the question which follows :-










































































































































Area and Number of habitats Species and their populations (in thousands) in the areas
A B
a (11) 2.3
b (11) 10.2
c (13) 11.3
d (14) 3.2





Which area out of a tod shows maximum species diversity?

  1. d

  2. a

  3. b

  4. c
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Species diversity is the number of different species that are represented in a given community. The two main factors taken into account when measuring diversity are richness and evenness. The habitats c and d have a higher species richness as compared to habitat a and b as both of them have 10 different types of species, while a and b have 8 and 7 different types of species respectively. However, habitat d has more species evenness as compared to habitat c. Since, the species diversity depends both on the species richness and the species evenness, so species d has a higher species diversity as compared to species c. So, the correct option is 'd'.

Multiple choice biology animal behaviour ethology natural selection coordination in human beings- chemical control endocrine system in humans

Waking up to a bulbul's song in the morning is related to 

  1. narrow utilitarian

  2. broadly utilitarian

  3. ethical

  4. both (b) and (c).
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
The broadly utilitarian argument says that biodiversity plays a major role in many ecosystem services that nature provides. The fast dwindling Amazon forest is estimated to produce, through photosynthesis, 20 percent of the total oxygen in the earth’s atmosphere. Pollination (without which plants cannot give us fruits or seeds) is another service, ecosystems provide through pollinators layer – bees, bumblebees, birds and bats. There are other intangible benefits – that we derive from nature–the aesthetic pleasures of walking through thick woods, watching spring flowers in full bloom or waking up to a bulbul’s song in the morning.
So the correct option is 'broadly utilitarian'.
Multiple choice biology animal behaviour ethology natural selection coordination in human beings- chemical control endocrine system in humans

Animals exposed to bright light have

  1. Darker pigmentation

  2. Lighter pigmentation

  3. Tint of yellow and red colours

  4. Both A and C
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Gloger's rule suggests that animals living in environments with higher light intensity or humidity often exhibit lighter pigmentation to reflect radiation or for camouflage.

Multiple choice biology animal behaviour ethology natural selection coordination in human beings- chemical control endocrine system in humans

Altruistic behaviours between closely related animals are selected for because they

  1. Reduce fighting between species

  2. Ensure survival of the altruistic individual

  3. Force individuals to cooperate with one another and so increase population growth

  4. Increase the frequency of the altruistic individuals genes in the next generation
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

An organism is said to behave altruistically when its behaviour benefits other organisms, at a cost to itself. The costs and benefits are measured in terms of reproductive fitness, or expected number of offspring. So by behaving altruistically, an organism reduces the number of offspring it is likely to produce itself, but boosts the number that other organisms are likely to produce. 

So the correct option is 'ensure survival of the altruistic individual'.