REVISION 2

• Label the placenta.

  
• What is the function of the placenta?

  Nourish fetus and remove waste.
• What is the placenta?

  An organ from which the infant receives nourishment.
• What are some methods of contraception?


  Birth control pill

  Condoms

  Diaphragm

  Sterilization

  IUD

  Morning After-Pill

  DMPA
• What is the luteal phase?

  Maintenance of endometrium by corpus luteum.
• What is the follicular phase?


  Development of follicles, thickening of endometrium begins.
• What is the menstraul phase?

  Shedding of endometrial lining through menstruation.
• What are 4 phases of the menstrual cycle?

  Menstruation, Follicular phase, ovulation, luteal phase.

  
• What age do females reach menopause?

  52-55
• What age do girls first get their period?

  11-15
• What is ovulation?

  The release of an egg from the ovary
• What is menopause?

  ending of menstrual cycle, marking end of fertility
• What is menarche?

  the first menstrual period
• What is menstruation?


  The shedding of the uterine lining
• What is Karyotype?

  Micrograph image of diploid set of chromosomes, grouped in pairs
• What is autosome?

  Any chromosome that is not a sex chromosome
• What is haploid?

  Cell that contains only a single set of genes
• What is a diploid?

  a cell that contains both sets of homologous chromosomes
• What is a homologous chromosome?

  an identical chromosome
• What is a genome?

  All the DNA in one cell of an organism
• What is transcription?

  The process of making RNA from DNA
• What is translation?

  the decoding of an mRNA message into a protein
• What are chromatids?

  Identical strands of chromosomes

  
• What are chromatins?

  DNA coiled around histomes

  
• What are chromosomes?

  Coiled up lengths of DNA molecules

  
• What is parthenogenesis?

  The development of an egg into an embryo without fertilization
• What is fragmentation?

  Asexual reproduction in which a body part is lost and then regenerates into a new organism
• What is budding?

  a new individual grows on the parent then separates
• What is binary fission?

  A type of simple cell division used by prokaryotic cells to reproduce & split into two
• What is asexual reproduction?

  Process of creating new individual using one parent organism
• What is sexual reproduction?

  Process of creating new individual using two parent organisms
• What is reproduction?


  Process where all genetic material is passed from one generation to the next
• What is Peripetric speciation?

  Form of allopatric speciation that occurs when populations that have become isolated have very few individuals.
• What is Parapetric speciation?

  Speciation that occurs when a population is continuously distributed within a geographic area without any specific barriers to gene flow.
• What is Sympatric Speciation?

  A species evolves into a new species without a physical barrier
• What is Allopatric speciation?

  Geographic isolation which results in speciation
• What is Artificial speciation?

  The form of speciation that can be achieved by the input of human influence.
• What is Peripatric speciation?

  -Same as allopatric speciation but one group is much larger than the other
• What is speciation?

  Formation of new species
• What is disruptive selection?


  an evolutionary force that drives a population apart.