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4

What is the term for the maximum number of individuals of a species that an ecosystem can support indefinitely?

A. Carrying capacity

B. Population density

C. Limiting factor

D. Exponential growth

Correct Answer :

A. Carrying capacity


Related Questions

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What is the term for a disease-causing microorganism?

A. Antibiotic

B. Parasite

C. Pathogen

D. Virus

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Which of the following is a characteristic of mammals?

A. Cold-blooded

B. Lay eggs

C. Have mammary glands

D. Breathe through gills

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4

What is the term for the physical appearance of an organism based on its genetic makeup?

A. Genotype

B. Phenotype

C. Allele

D. Homozygote

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Which type of survivorship curve is characterized by a high mortality rate in early life, followed by high survivorship in later life?

A. Type I

B. Type II

C. Type III

D. Type IV

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What type of microorganism is responsible for turning milk into yogurt and cheese?

A. Bacteria

B. Virus

C. Fungus

D. Protist

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4

Which type of muscle is responsible for voluntary movements in the body?

A. Smooth muscle

B. Cardiac muscle

C. Skeletal muscle

D. Involuntary muscle

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4

What is the term for the maximum number of individuals of a species that an ecosystem can support indefinitely?

A. Carrying capacity

B. Population density

C. Limiting factor

D. Exponential growth

What is the correct answer?

4

In a DNA molecule, adenine (A) pairs with:

A. Thymine (T)

B. Cytosine (C)

C. Guanine (G)

D. Uracil (U)

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4

What is the term for a gene that is expressed when present, even if only one copy is present in an individual's genotype?

A. Recessive

B. Dominant

C. Co-dominant

D. Allelic

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4

Which hominid species is known for its use of fire and tools, and is believed to be the first to migrate out of Africa?

A. Neanderthals

B. Homo erectus

C. Australopithecus afarensis

D. Homo habilis

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4

Which plant hormone is responsible for promoting cell elongation and growth in response to light?

A. Auxin

B. Gibberellin

C. Ethylene

D. Cytokinin

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4

Which class of vertebrates includes animals with scales, a bony skeleton, and a two-chambered heart?

A. Mammals

B. Amphibians

C. Reptiles

D. Birds

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4

What is the primary source of energy for most ecosystems?

A. Wind

B. Water

C. Sunlight

D. Geothermal heat

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4

The smallest unit of a chemical element that retains the properties of that element is called:

A. Atom

B. Molecule

C. Cell

D. Tissue

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What is the term for the shedding of the uterine lining in the absence of pregnancy, resulting in menstruation?

A. Ovulation

B. Fertilization

C. Menarche

D. Menstruation

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4

Which of the following is an example of an invasive species?

A. Native grasses in their natural habitat

B. A non-native tree planted in a garden

C. A species that naturally occurs in a specific ecosystem

D. A species that is endangered

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4

What is the role of the hypothalamus in the human brain?

A. Coordination of muscle movements

B. Regulation of body temperature and hormone secretion

C. Memory storage

D. Visual processing

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What is the term for the process by which animals change their physical and behavioral traits in response to seasonal changes?

A. Hibernation

B. Migration

C. Estivation

D. Camouflage

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In which type of population distribution are individuals evenly spaced throughout their habitat?

A. Random dispersion

B. Clumped dispersion

C. Uniform dispersion

D. Overlapping dispersion

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4

The human heart has how many chambers?

A. 2

B. 3

C. 4

D. 5

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4

Which species is believed to be the closest ancestor to modern humans?

A. Neanderthals

B. Homo erectus

C. Australopithecus afarensis

D. Homo habilis

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4

What term describes the variety of different species in a particular habitat or ecosystem?

A. Species richness

B. Genetic diversity

C. Ecosystem diversity

D. Species evenness

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4

What is the largest group of arthropods, known for their jointed appendages and hard exoskeleton?

A. Insects

B. Arachnids

C. Crustaceans

D. Myriapods

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4

Which part of the human brain is responsible for regulating basic bodily functions like breathing and heart rate?

A. Cerebrum

B. Cerebellum

C. Medulla oblongata

D. Thalamus

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4

Which of the following is NOT a function of the cell wall in plant cells?

A. Providing structural support

B. Regulating osmotic balance

C. Facilitating cell communication

D. Protecting against pathogens

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4

What is the process by which segments of DNA are shuffled during the formation of gametes, leading to genetic diversity?

A. Meiosis

B. Mitosis

C. Replication

D. Crossing over

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4

What is the primary function of the root system in plants?

A. Photosynthesis

B. Anchoring the plant and absorbing water and nutrients

C. Producing flowers and fruits

D. Transporting sugars

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What is the primary function of the plant cuticle?

A. Gas exchange

B. Water retention and protection

C. Photosynthesis

D. Nutrient absorption

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What is the process by which species evolve into more diverse forms over time?

A. Speciation

B. Convergent evolution

C. Divergent evolution

D. Coevolution

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Which of the following is a characteristic of arachnids?

A. Six legs

B. Two pairs of antennae

C. Exoskeleton made of chitin

D. Segmented body