Biology Quiz: Plant Tropisms and Human Development

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Questions and Answers

Which of the following best describes 'tropism' in plants?

A plant's reaction to a stimulus in the environment. (correct)

The plant's absorption of water.

The process of photosynthesis.

The production of auxins by the plant.

What is the primary function of auxins in plants?

To control growth and various tropisms. (correct)

To enable the plant to respond to touch.

To facilitate the uptake of water.

To protect the plant from excessive light.

Which tropism describes a plant's response to the pull of gravity?

Thigmotropism

Hydrotropism

Phototropism

Geotropism (correct)

A plant growing towards a window exhibits which type of tropism?

Phototropism Signup and view all the answers

What is another term used to describe the toddler stage of human development?

Preschool years Signup and view all the answers

Which of the following is a key characteristic of the toddler stage?

Slowing of physical development but rapid intellectual, emotional and social changes. Signup and view all the answers

What is characteristic of the adolescence stage in the human life cycle?

A period of rapid physical and emotional change. Signup and view all the answers

According to the information, at what age is a human being considered an adult according to the law?

21 Signup and view all the answers

Which of the following best describes the primary function of the endosperm in a seed?

To store food for the embryo's development. Signup and view all the answers

What is a key characteristic of insects that undergo incomplete metamorphosis?

Their life cycle includes only egg, nymph and adult stages. Signup and view all the answers

At what specific stage in the process of seed germination does the stem initially emerge from the soil?

When the curved stem is observed, above ground. Signup and view all the answers

Which of the following is NOT a critical factor in seed germination?

The presence of specific microorganisms in the soil. Signup and view all the answers

What is the primary source of nutrition for baby animals immediately after birth?

The mammary gland of the mother Signup and view all the answers

What is the definition of the term 'life cycle' as used in the context of the provided information?

The series of changes an organism undergoes during its lifespan. Signup and view all the answers

Which age group is typically associated with the ‘late adulthood’ stage of life?

Individuals over sixty years of age Signup and view all the answers

Which part of the plant is directly developed from the embryo within the seed?

The new plant itself Signup and view all the answers

What primarily defines an ecosystem?

The interplay of biotic and abiotic elements within a specific area Signup and view all the answers

What role do producers play within an ecosystem?

They create their own food using inorganic matter Signup and view all the answers

Which group represents organisms that exclusively consume plant matter for energy?

Herbivores Signup and view all the answers

A linear sequence of energy transfer that shows how organisms are related predator to prey is called a:

Food chain Signup and view all the answers

How does a food web differ from a food chain?

It captures the interconnectedness of many food chains within an ecosystem Signup and view all the answers

What is the main function of decomposers within an ecosystem?

To break down dead organisms and release nutrients Signup and view all the answers

Which of the following is considered an abiotic factor in an ecosystem?

The water in a pond Signup and view all the answers

How do humans typically participate in a food chain or web?

As consumers who acquire nutrients from both plants and animals Signup and view all the answers

Study Notes

Plant Responses to Environmental Conditions

Plants react to stimuli in their environment, a process called tropism.
A stimulus is anything that causes a change in an organism.
Plants respond to stimuli through plant movement.
Auxins are plant hormones responsible for various tropisms.

Plant Tropisms

Phototropism: Plant response to light.
Hydrotropism: Plant response to water.
Geotropism: Plant response to the Earth's gravity.
Thigmotropism: Plant response to touch.
Anemotropism: Plant response to air.
Thermotropism: Plant response to temperature.
Heliotropism: Plant response to sunlight.

The Life Cycle of Humans

A life cycle is how living things grow and change throughout their lives.
It includes reproduction.

Infancy Stage

Immediately after birth, babies depend on their mother's milk for nourishment.

Toddler Stage

Toddler years are also called preschool years.
Physical and motor development begins to slow down, though intellectual, emotional, and social development continues.
Vocabulary and understanding concepts like time and opposites develop.

Childhood Stage

This period is characterized by variability in growth rates among children.
Children typically start school during this stage.

Adolescence/Puberty

A period of rapid physical and emotional changes, typically occurring between ages 12-15.
The changes occurring during this stage are typical and normal for both boys and girls.

Adulthood

The adult stage is considered to begin after age 21.
During this stage, humans generally have full physical and intellectual capacities.

Late Adulthood

This begins at around 60 years old and is often associated with decreased physical and mental abilities in some individuals.

Stages in Animal Lifecycles

Some animals are born alive from the mother.

Parts of a Seed

Embryo: The part of the seed that will grow into a new plant.
Endosperm: A food storage part for the developing embryo.
Seed Coat: The outer protective layer of a seed.

Seed Germination

Seeds need proper moisture, air, and temperature to germinate.
The process typically begins with the embryonic root emerging first, followed by the stem.

Ecosystem Components

An ecosystem includes living (biotic) and non-living (abiotic) things in an area.
Biotic factors are life forms in an area.
Abiotic factors are non-living things like sunlight, water, air, minerals, and temperature.
Producers, consumers, and decomposers are living components.

Producers

They make their own food through photosynthesis (plants).

Consumers

They cannot produce food and rely on other organisms (producers or other consumers) for their food.
Herbivores: Eat plants
Carnivores: Eat meat
Omnivores: Eat both plants and animals

Decomposers

They break down dead organisms, returning nutrients to the ecosystem.

Food Chains and Food Webs

Food chains are linear sequences showing how energy is transferred through organisms in the ecosystem.
Food webs are interconnected food chains.

Beneficial and Harmful Interactions

Symbiosis describes interactions between organisms living closely together.
Mutualism: Both organisms benefit.
Commensalism: One benefits, the other is unaffected.
Competition: Organisms compete for resources.
Parasitism: One benefits, the other is harmed.
Predation: Consumers hunt and kill other organisms for food.
Victims are called prey.

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Description

Test your knowledge about plant responses and human development stages in this engaging quiz. Explore topics ranging from tropism in plants to the characteristics of different life stages in humans. Perfect for biology students and enthusiasts!