Answer:
1. homologous.
2. Meiosis
3. Human sex cells do have 23 chromosomes, but not these 23. ... None, egg cells don't have chromosomes. No, sex cells do have chromosomes. Meiosis reduces chromosome number so that sex cells (eggs and sperm) have a half set of chromosomes one homolog of each pair. This is the haploid number.
Use sterile gauze and wipe away from the site of injury
One of the most adaptable restorative materials in dentistry is dental amalgam. It accounts for over 75% of all restorative materials used by dentists.
<h3>
What is amalgam?</h3>
Dental amalgam is a mixture of liquid mercury and metal alloys used to treat cavities caused by tooth decay in dentistry. [1] Mercury (50%) is typically found in low-copper amalgam, along with silver (22–32%), tin (14%), zinc (8%), and other trace metals.
Because of the constant expansion and contraction of amalgam fillings, they can sometimes shatter the tooth. Leakage is also less likely with composite fillings. A leaking filling indicates there is a small breach between the filling and your tooth, which allows dirt and saliva to enter and cause decay.
For more information regarding amalgam, visit:
brainly.com/question/17811914
#SPJ1
Answer:
True
According to UCMP Berkley, the only naturally occurring marsupial in the North America is the opossum (of different varieties).
Australia has a variety of marsupials, including the Tasmanian Devil, wombat, koala, and Red Kangaroo.
Answer:
Mutations arise spontaneously at low frequency owing to the chemical instability of purine and pyrimidine bases and to errors during DNA replication. Natural exposure of an organism to certain environmental factors, such as ultraviolet light and chemical carcinogens (e.g., aflatoxin B1), also can cause mutations.
