Welcome to your Grade 11 Biology chapter 6
After carefully reading the following 30 questions, choose the correct answer.
1.
Which phenomenon refers to the accumulation of toxic substances like DDT in trophic levels?
2.
Greenhouse gases like carbon dioxide are primary contributors to:
3.
What is the term for the acceleration in algae growth due to nutrient enrichment in water?
4.
Renewable natural resources are those that:
5.
Logistic population growth differs from exponential growth by considering:
6.
Which of the following is considered a non-renewable natural resource?
7.
Population density refers to the number of individuals per:
8.
The age-sex structure of a population is often illustrated using a:
9.
Which of these is a cause of biodiversity loss mentioned in the text?
10.
Demographic structure helps in understanding a population's:
11.
Ozone layer depletion is primarily caused by:
12.
What is the main cause of acid rain?
13.
Indigenous conservation practices are those developed by:
14.
Population regulation can be influenced by:
15.
Traffic accidents have an impact on which types of animals in Ethiopia?
16.
Exponential growth occurs when a population grows:
17.
Biodiversity refers to the variety of:
18.
Climate change is a long-term shift in:
19.
What happens to the concentration of toxins as they move up the food chain?
20.
Which of the following is a density-dependent factor?
21.
Resource depletion occurs when resources are used:
22.
Population dispersal describes the:
23.
If 100 individuals are born per year in a population of 5000, what is the birth rate?
24.
Global warming is primarily caused by an increase in the:
25.
Non-renewable resources are finite because they:
26.
An invasive species is one that:
27.
What describes the number of individuals a habitat can sustain?
28.
Acid rain results from the atmosphere combining with:
29.
Toxic bioaccumulation is especially dangerous for:
30.
Conservation of natural resources aims to:
