10th Grade Science Module 8: Biodiversity and Stability

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Questions and Answers

How does species diversity contribute to the adaptation and survival of organisms in changing environments?

Species diversity reduces competition for resources, increasing chances of survival.

Species diversity enables a wider range of adaptations, increasing the chances of survival. (correct)

Species diversity increases the likelihood of finding resources in changing environments.

Species diversity creates more niches, leading to increased specialization and better adaptation.

What is the most likely reason for the increased stability of an ecosystem with higher biodiversity?

Higher biodiversity ensures that all species are equally adapted to environmental changes.

Higher biodiversity leads to increased food availability and a greater variety of food sources.

Higher biodiversity decreases the dependence on a single species for ecosystem functions. (correct)

Higher biodiversity creates more complex interactions between species, leading to greater resilience.

Which of the following actions would NOT contribute to the protection and conservation of local biodiversity?

Supporting the introduction of new plant and animal species to enhance biodiversity. (correct)

Encouraging the use of native plant species in landscaping projects.

Establishing protected areas to safeguard habitats and endangered species.

Promoting sustainable agriculture practices that minimize habitat destruction.

What is the main method used in "Muro-ami" fishing?

Breaking corals to drive fish into nets. (D) Signup and view all the answers

What is the most likely reason why "Muro-ami" is considered illegal?

It is harmful to the environment and damages coral reefs. (C) Signup and view all the answers

Why is it recommended to use organic fertilizer instead of commercial fertilizers?

Commercial fertilizers can harm the environment. (C) Signup and view all the answers

What is the role of forests in relation to carbon dioxide?

Forests absorb carbon dioxide from the atmosphere. (A) Signup and view all the answers

How can the use of dynamites and cyanides in fishing impact the ecosystem?

It can cause widespread death of marine life and damage coral reefs. (A) Signup and view all the answers

What effect does continuous use of commercial fertilizers have on the environment?

It can increase soil erosion and water pollution. (A) Signup and view all the answers

What is the primary reason why converting agricultural lands into subdivisions and commercial buildings is considered a problem?

It can lead to loss of valuable farmland and biodiversity. (B) Signup and view all the answers

Which of the following is not an example of a learned behavior?

A bird migrating to a warmer climate (D) Signup and view all the answers

What is the primary reason why a highly diverse ecosystem is more stable than one with low diversity?

Diverse ecosystems have more complex interactions between species, making them resilient to disturbances. (B) Signup and view all the answers

Which of the following is NOT a factor that contributes to the stability of an ecosystem?

The presence of a single dominant species (B) Signup and view all the answers

In the context of biodiversity, what does 'richness' refer to?

The number of different species present in a particular area (B) Signup and view all the answers

How does hibernation benefit animals in cold climates?

It conserves energy during periods of scarce food. (D) Signup and view all the answers

Which of the following is a common example of a behavioral adaptation?

A squirrel burying nuts for the winter (A) Signup and view all the answers

Why is it important for animals to have adaptations?

All of the above (D) Signup and view all the answers

What is an example of an adaptation that helps animals survive in cold climates?

Thick fur (B) Signup and view all the answers

What adaptation strategy involves changing an animal's color to blend in with its surroundings?

Camouflage (C) Signup and view all the answers

What adaptation allows geckos to avoid predators by imitating other animals?

Mimicry (B) Signup and view all the answers

What kind of adaptation involves changes in an animal's body structure to help it survive?

Physical (A) Signup and view all the answers

What is the term for a region with a high concentration of biodiversity?

Biodiversity Hotspot (D) Signup and view all the answers

Which of the following is a common human activity that contributes to environmental problems and impacts biodiversity?

Pollution (C) Signup and view all the answers

What is the term for the similarity in population size of different species within a particular area?

Evenness (D) Signup and view all the answers

What is a common way to conserve biodiversity in a community?

Plant more trees (C) Signup and view all the answers

Which of the following correctly describes the process of photosynthesis?

Trees use water and carbon dioxide to produce oxygen and glucose. (D) Signup and view all the answers

Which of the following factors can contribute to an increase in ecosystem biodiversity?

Abundant nutrients and water (A) Signup and view all the answers

If an ecosystem has a high biodiversity, what can we infer about its stability?

It would be more stable. (A) Signup and view all the answers

What happens to an ecosystem with low biodiversity?

It becomes more vulnerable to disturbances. (A) Signup and view all the answers

What is the relationship between the evenness of an ecosystem and its stability?

More even ecosystems are more stable because they offer a broader range of resources. (B) Signup and view all the answers

Study Notes

Module Information

Title: Science
Quarter: 3
Module: 8
Topic: Biodiversity and Stability
Grade level: 10
Publication: Department of Education (DepED)

Overview

The module focuses on the importance of biodiversity, its relationship to ecosystem stability, and the adaptation/survival of organisms in changing environments.
Awareness of environmental protection is emphasized.
Key learning expectations include explaining the relationship between species diversity and survival, analyzing biodiversity's effect on ecosystem stability, and suggesting ways to protect/conserve local biodiversity.

Learning Activities

Pre-tests are included to gauge prior knowledge.
Post-tests allow self-assessment.
Activities involve analysis of diagrams, classification of species, and identification of environmental factors affecting ecosystems.

Instructions for Students

Use a separate sheet for all written responses.
Be honest in answering.
Consult the teacher with any difficulty. Focus on the subject matter provided only.

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Description

This quiz covers key concepts from the 10th-grade science module on biodiversity and its crucial role in ecosystem stability. Students will explore the relationship between species diversity and survival, analyze the effects of biodiversity on ecosystems, and consider ways to protect local environments. Engage with learning activities that include pre-tests and post-tests to assess your understanding.