No, marsupials are mammals like opossums, kangaroos, wombats, and bandicoots who all have pouches and give birth to live young that are not ready to live in the outside world until later as they are not fully developed. Therefore they live in their mothers pouches until they are mature enough. They mainly live in Australia, New Guinea and America.
Answer:
B) Identifying the minerals within it
Explanation:
Geologists commonly use radiometric dating methods, based on the natural radioactive decay of certain elements such as potassium and carbon, as reliable clocks to date the age of rock layers.
The right answer is 1/4.
Two carriers of the disease each have a chance in two to transmit their sick gene ie: 1/2 * 1/2 = 1/4
A genetic disease is said to be autosomal recessive when
The gene involved is carried by an autosome (non-sex chromosome, X or Y in XY system of sexual determination);
The associated phenotype of this trait is recessive (the presence of two identical alleles is essential for the character to be expressed).
One of the two alleles is transmitted by the male gamete, the other by the female gamete.
But being a carrier of the mutation does not necessarily mean being sick, the manifestations of a genetic disease depend on its penetrance and the variability of its expression.
Stratigraphic correlation is a process of matching up strata from various sites through the analysis of physical, chemical and other properties. It is also a study that involves establishing geochronological relationships between areas concerned with geological investigation of many succession. It is carried out by studying the different patterns and location of rocks on the earth so as to understand their relationships and age of the layer.
Cell wall, cell membrane, nuclear membrane.
