Flow of Energy
Cycles
Dichotomous Keys
r and K strategists
Habitats
Absolutely For Real Biology 100%
100
100 – what is the first source of energy within an ecosystem?
Ans – the sun
100
list the three biogeochemical cycles
(water, nitrogen, carbon)
100
100 - What are dichotomous keys used for:
They help scientist understand and differentiate between organisms
100
Provide an example of both a r- strategist and a K-strategist.
Answers may vary.
100
What makes an environment have high habitat diversity?
An environment that includes a wide range of ecological niches, to support a wide range of species, is considered to have high habitat diversity
100
100 - What is the distance from earth to the moon:
384,400km
200
200 – what is an autotroph?
Ans - green plants that make their own energy from carbon dioxide and water using sunlight energy.
200
list the locations where liquid water is found
(oceans, rivers, lakes, underground)
200
How are dichotomous keys used:
Go through the branch answering whether the organism has the category or not
200
Classify which type of strategist favour carrying capacity and which favour population growth.
K-strategist favours carrying capacity, r-strategist favours population growth.
200
What is the definition of Biome?
An area with specific climatic conditions which controls the distribution of organisms and the adaptations they display
200
What is the longest English word?
The longest English word is 189,819 letters long.
300
300 – what is biological magnification?
Ans – a process causing the concentration of a substance (crosses) to increase at higher trophic levels.
300
where is most of the carbon stored on the planet?
(rocks and sediments)
300
What are the two ways a dichotomous keys be represented:
Branching and linear
300
Draw a graph representing the population of a K-selected species over time, include axis labels.
300
What are the different systems used around the world to classify ecosystems and habitats? (2)
- Bioregions and Specht’s system of classification
300
Which country has the most pyramids in the world?
Ans – sedan
400
400 – what is the estimated assimilation efficiency of carnivores? Ans – 80%
Ans – 80%
400
what is the process called in which bacteria convert nitrates into nitrogen gas?
(denitrification)
400
Can a dichotomous key have more than two categories:
No, If it did have more than two then it would be refered to as a polychotomous key
400
Classify which type of strategist is a lower trophic level (prey) and which is a higher trophic level (predator).
r-strategist is a lower trophic level and K-strategist is a higher trophic level .
400
Give 1 example of habitats that have low and high habitat diversity (explanation not needed)
Low habitat diversity
- Desert
- Antarctica/tundra
- Urban areas à usually densely populated cities with limited habitats
- Open ocean à The open ocean has relatively low biodiversity compared to coastal areas.
- High mountain peaks à the harsh conditions typically limit plant life
High habitat diversity
- Tropical rainforest
- Coral reefs à offers variety of habitat for countless marine species
- Mangrove forests à unique coastal ecosystems transition between land and sea, providing habitats for a wide range of terrestrial and aquatic species
- Savannas à
- Estuaries à the zones between rivers and oceans are highly productive and support a diverse range of plants, fish, birds, and mammals.
400
what is the population of Monaco in 2024?
(38,631)
500
500 – What amount of energy is transferred to the higher trophic level, and what happens to the remaining energy?
Ans – must mention:
· The 10% Energy Loss as Heat – A significant portion of energy is lost as heat due to metabolic processes (like cellular respiration).
· Energy Used in Biological Processes – Organisms use energy for movement, growth, reproduction, and other vital functions, which consumes much of the energy absorbed.
· Energy Lost in Waste – Some energy is lost in waste products, including undigested material and excretion.
500
what is the half-life of a carbon atom?
(a. 5700,
b. 2350,
c.5730,
d. 2930
e. 1000,
f.40590,
g. 25,
h.5760)
Correct answer is c
500
Draw an example of a dichotomous keys:
500
Draw a graph representing the % survivorship of a r-strategist and a K-strategist, as well as one which is experiencing constant loss, include axis labels.
500
what makes mangroves have high habitat diversity? (dot points is fine and give 2 at least)
- An diverse habitat for many species; as its between land and sea providing a home for terrestrial and aquatic species
- Trees —> tree trunks, branches
- Nursery grounds: shallow waters that are protected for growing fish, nesting/resting ground for birds
- Abundant food sources
- Marine plants for fish to hide and feed on
- Canopy gaps
- Tidal creeks
500
How tall is the tallest building in the world (Burj Khalifa)
828m