Investigate and describe examples of continuous and discontinuous variation
Investigate and describe examples of continuous and discontinuous variation
1 AnswerQuestions and Answers
1 AnswerDescribe that discontinuous variation is usually caused by genes only and continuous variation is caused by genes and the environment
Describe that discontinuous variation is usually caused by genes only and continuous variation is caused by genes and the environment
1 AnswerDescribe that discontinuous variation results in a limited number of phenotypes with no intermediates, including ABO blood groups, seed shape and seed colour in peas
Describe that discontinuous variation results in a limited number of phenotypes with no intermediates, including ABO blood groups, seed shape and seed colour in peas
1 AnswerDescribe variation as differences between individuals of the same species
Describe variation as differences between individuals of the same species
1 AnswerState that some viruses can pass across the placenta and affect the fetus
State that some viruses can pass across the placenta and affect the fetus
1 AnswerIdentify, on diagrams, the placenta and umbilical cord and describe their functions in relation to the exchange of dissolved nutrients, gases and excretory products between the blood of the mother and the blood of the fetus (structural details are not required)
Identify, on diagrams, the placenta and umbilical cord and describe their functions in relation to the exchange of dissolved nutrients, gases and excretory products between the blood of the mother and the blood of the fetus (structural details are not required)
1 AnswerState the functions of the amniotic sac and the amniotic fluid
State the functions of the amniotic sac and the amniotic fluid
1 AnswerDescribe the early development of the zygote, limited to the formation of a ball of cells (embryo) that becomes implanted in the lining of the uterus
Describe the early development of the zygote, limited to the formation of a ball of cells (embryo) that becomes implanted in the lining of the uterus
1 AnswerExplain the roles of follicle-stimulating hormone (FSH), luteinising hormone (LH), oestrogen and progesterone in controlling the menstrual cycle
Explain the roles of follicle-stimulating hormone (FSH), luteinising hormone (LH), oestrogen and progesterone in controlling the menstrual cycle
1 AnswerDescribe the roles of testosterone and oestrogen in the development and regulation of secondary sexual characteristics during puberty
Describe the roles of testosterone and oestrogen in the development and regulation of secondary sexual characteristics during puberty
1 AnswerTotal Questions 4323
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