Evolution is defined as the change in frequency of certain traits across generations. The accumulation of new traits may lead to new characteristics or even new species over time. This means that, with time, enough changes can lead to the formation of a new species. Evolution is a continuous, extremely gradual process that has created…
Tag: reproduction
The Biology of Reproduction
Every organism must reproduce (create offspring) in order to pass a part of themselves on into future generations. Depending on the organism, it can either reproduce using sexual or asexual reproduction, which both involve cell division. The parental traits of sexually reproducing organisms will also mix to form a unique combination in the offspring, and…
Sex Education Within Schools
Opinions regarding what constitutes an effective and appropriate sex education vary between countries, nations, cultures, and even among families. The sex education curriculum of any given society typically reflects the dominant cultural values and norms of the greater community. There has yet to be a nation today to achieve comprehensive standards. In past decades, “abstinence-only” sex education programs…
The Testes
Typically, males have two testes. The testes are contained within the scrotal sac, located beneath the penis and in front of the anus. They are round in shape and tend to be about the same size as golf balls. Testicles are attached to the body via the spermatic cords, which are cord-like tissue structures formed…
Assisted Reproductive Technology (ART)
Assisted reproductive technology (ART), is a class of medical treatments and procedures used to help people dealing with various forms of infertility conceive a child.1 There are various forms, and as every person’s situation is different, the specifics are best to be discussed with a medical provider and/or fertility specialist. If you would like to…
Ectopic Pregnancy
An ectopic pregnancy occurs when the fertilized egg does not attach itself to the inner lining of the uterus where it normally would, and instead attaches to a different location. The embryo often attaches itself along the reproductive tract in the fallopian tubes, thus resulting in a tubal pregnancy. Fallopian tubes are far too narrow…