BT101 Midterm Objective 2023 Set 2 by Sulman Ali

OBJCTIVES OF CURRENT PAPER · BT101 - Ecology, Biodiversity & Evolution-I · Mid-Term File 2023 By · SULMAN ALI (BS-ZOOLOGY)

•  ------ enables animals to survive periods of reduced food availability.

 Torpor

•  Adult human body contains ----- of water by weight.
•  60%
•  ------- are strongly affected by light pollution.

 Reptiles

•  In stratosphere temperature ranges from ……..near the tropopause
•  51c
•  One species gains benefits other species harmed called ……
•  ---------- is a group of population occupying same space in a particular time.

 Community

•  He joined -------------- of medicine Scotland in 1825 but he was not interested in being physician.

 School

•  -----------of an animal that warns predators it is toxic, distasteful or dangerous.

 Appearance

•  Primary decomposer . Release digestive enzymes by their hyphae. Absorb organic matter and release CO2

 Fungi

•  What percent of the air includes water vapor, carbon dioxide and methane---
•  1%
•  The external factors are --------

 Climate And Topography

•  Oxygen made stable ------ of atmosphere
•  15%
•  Which animal change its color rapidly ---------

 Chameleon

•  plants, algae, and cyanobacteria are the examples of------

 Photoautotrophs

•  Cascade Effect Removal of …..in environment

 apex predator

•  ------- is key element in survival of life.

 Atmosphere

•  Atmosphere have------

 5 layers

•  One species gain benefit other species is harmed
•  Fungi is ____ decomposer

 Primary

•  CH4, Nitrous oxide, CO2 are----

 greenhouse gas

•  ------is the removed of the forest

 Deforstation

•  Organic Compounds that contain ---atoms

 Carbon

•  The total average height of troposphere is ______.

 13 km

•  .---------------- is process of increasing concentration of toxic substance.

 Biomagnifications

•  First evolutionary scheme was proposed by jean Baptiste Lamarck in -----
•  1809
•  Jean Baptiste Lamarck ----- was a distinguished French zoologist.
•  (1744–1829)
•  ----is the amount of chemical energy as biomass that primary producers create in a given length of time.

 Gross primary production (GPP)

•  Thermosphere Layer, directly above the mesosphere and below the -------
•  exosphere.
•  Plants use light energy in photosynthesis. They convert ----

 light energy into chemical bond energy

•  ----- is Breakdown of tissues by bacteria.

 Putrefaction

•  -------is Natural environment where a species/organism lives.

 Habitat

•  solar nebula is --------------

 (disc of dirt and gases)

•  541 million years ago, O2 made stable ------of atmosphere.
•  15%
•  ----- is Rain water soaks into (infiltrates) the ground, into the soil and underlying rock layers.

 Percolation

•  ------is Removal of a forest or stand of trees from land which is then converted to a non-forest use.

 Deforestation

•  Sound that is unwanted or disrupts one’s quality of life is called as----
•  Noise pollution.
•  ------------is The small amount of greenhouse gases (H2O, CO2, methane) traps (absorb and re-emit) the infrared radiation. Increasing the temperature of the atmosphere.

 Greenhouse effect

•  Regions with identical climate have different floras and faunas -------------

 (Buffon’s Law)

•  Chemicals added to the atmosphere by natural events or human activities in high enough concentrations to be harmful

 Air Pollutants

•  The second major layer of Earth’s atmosphere is ------------------

 ( Stratosphere)

•  The resemblance of one species to another for protective or aggressive purposes-----

 Mimicry

•  The first community to become established in an area is called the …community

 Pioneer

•  When a population reaches a -----------, there are more individuals trying to use the same quantity of resources.

 high density

•  Energy is lost through -------at every level.

 Respiration

•  Effect flows down through a trophic chain. From apex predator to lower trophic levels

 Top-Down Effect

•  -----------can be at trophic level as well. They return nutrients back in soil to be available for producers.

 Detritivore and decomposers

•  All organisms need ------ to function