Grade 8 Exam Practice Question's

What is an example of a behavioural adaptation that helps animals avoid predators?

What type of activity pattern helps animals avoid unfavorable conditions?

What is a source of variation within a species?

What happens to favourable characteristics through successful reproduction?

What process leads to favourable characteristics becoming more common in a population?

What is the term for the process by which different species develop similar characteristics in response to similar environmental pressures?

What is the term for an allele that will always be expressed if an individual has one copy of it?

What is the term for the physical expression of a gene?

What is the term for having two different alleles of a gene?

What is the term for two or more different forms of a gene?

What type of inheritance results in a phenotype that is a blend of a heterozygous allele pair?

What is a characteristic of asexual reproduction?

What is the purpose of a Punnett square?

What is the process by which organisms with unfavorable characteristics die off, becoming less common?

What is the term for the survival of organisms with favorable characteristics, leading to their increased representation in a population?

What is the result of variation in characteristics within a species, leading to the selection of favorable traits?

What is the term for similar structures in related species, resulting from shared genetic heritage?

What type of evolution occurs when organisms from different origins evolve similar adaptations?

What is the primary function of the 'fight or flight' response?

Which hormone is responsible for converting blood glucose to glycogen in the liver?

What is the fundamental unit of life, according to the cell theory?

What is the result of the release of adrenaline and norepinephrine from the adrenal glands?

Which of the following is a characteristic of all living things, according to the cell theory?

What is the function of the hormone glucagon?

What is the term for the physical structure of a cell?

Which of the following is a characteristic of multicellular organisms?

What is the primary function of the pancreas?

What is the term for the process by which an organism's body responds to perceived threat or danger?

What is the process of asexual reproduction where a new individual develops from an outgrowth of a parent?

Which organism is an example of asexual reproduction that occurs through spores?

What is the process of asexual reproduction where a single parent breaks into parts that regenerate into whole new individuals?

Which type of reproduction requires two parents that each share ½ of the genetic information?

What is the type of asexual reproduction in which the offspring develops from the egg or female gamete without being fertilized by the male gamete?

What is the main purpose of camouflage in an organism's adaptation to its environment?

What is the result of genetic mutations and natural selection in a population?

What is an example of a functional adaptation in an organism?

Why are smaller animals more suited to very hot climates?

What is the primary function of connective tissue in the body?

What is the primary function of the pituitary gland in the endocrine system?

What is the role of the thyroid hormone thyroxine?

How do hormones act on the body?

What is the role of the hypothalamus in the endocrine system?

What is the term for the process of maintaining the body's internal environment?

What is the purpose of insulation in some animals?

What is the result of genetic mutations and natural selection in a population?

What is the term for physical features of an organism that aid in its survival?

What is the role of muscle tissue in the body?

What is the role of the pancreas in regulating blood sugar levels?

What is the effect of the release of adrenaline and norepinephrine from the adrenal glands?

What is the function of the hormone glucagon in the liver?

What is the consequence of a deficiency in the adrenal glands' function?

What is the term for a change that occurs around us in the environment?

What is the primary function of the endocrine system?

What is the significance of homeostasis in the body?

Which part of the nervous system consists of the brain and spinal cord?

What is the consequence of homeostasis failure?

What is the primary function of the signal interpretation process in organisms?

What is the purpose of shivering when an animal is cold?

What is the result of variation in characteristics within a species?

What is an example of a functional adaptation that helps an organism survive in its environment?

What is the result of genetic mutations and natural selection in a population?

What is the main purpose of an organism's adaptation to its environment?

What is an example of a stimulus that can be detected by the skin?

What is the primary function of hormones in the body?

What is the role of the hypothalamus in the endocrine system?

What is the effect of excess thyroxine produced by the thyroid gland?

How do hormones act on the body compared to nervous impulses?

What is the purpose of the mechanism of homeostasis in the body?

What is the function of the endocrine system in the body?

What is the difference between the Central Nervous System (CNS) and the Peripheral Nervous System (PNS)?

What happens when an organism's internal environment is not maintained at a constant level?

What is the purpose of the mechanism of ignoring certain stimuli?

What is the primary function of functional adaptations in an organism?

Which of the following is an example of a behavioural adaptation?

What is the result of variation in characteristics within a species?

What is the purpose of an organism's ability to change colour?

What is an example of an adaptation that helps an organism conserve energy?

How do plants respond to sunlight?

What type of stimuli can the skin detect?

What is the term for the physical features of an organism that aid in its survival?

What is the purpose of insulation in some animals?

What is the result of genetic mutations and natural selection in a population?

What is the function of camouflage in an organism's adaptation to its environment?

What is the main difference between structural and functional adaptations?

What is the response of an animal to a stimulus that causes it to contract its muscles?

What is an advantage of asexual reproduction?

What is a disadvantage of asexual reproduction?

What is the main difference between asexual and sexual reproduction?

What is the benefit of asexual reproduction in terms of genetic information?

What is the main advantage of asexual reproduction in terms of time?

What is the difference between asexual and sexual reproduction in terms of parents involved?

What is the term for the process where organisms with favorable characteristics are more likely to survive and reproduce?

What is the term for the phenomenon where different species evolve from a single ancestor?

What is the term for the process where organisms from different origins evolve similar adaptations?

What is the term for the survival of organisms with favorable characteristics, leading to their increased representation in a population?

Why did ancestral giraffes with longer necks survive and produce long-necked offspring?

What is the primary reason why organisms develop adaptations?

What is the main difference between structural and functional adaptations?

What is the outcome of natural selection and genetic mutations in a population?

What is the purpose of hibernation in some animals?