To conduct water and minerals to the leaves
The correct answer is Economic cycle.
The natural fluctuation in economy between the period expansion (economy growth) and contraction (recession) is known as the economic cycle.
The normal growth and downturn in the economy is the basic definition of Economic cycle.
During the time of expansion the investors seek to purchase companies and shares and during the time of contraction the investors look to invest and purchase the companies such as utilities and healthcare.
The fossils that provide information on the formation of an oxygen-rich atmosphere are the stromatilites from the Precambrian era. These are layered and columnar fossils consisting mainly of cyanobacteria which were the original life form back then. These bacteria took in carbon dioxide and produced oxygen by photosynthesis as early as 2.5 billion years ago (the earth is about 4.5 billion yrs old).
Answer:
b. Sympatric autopolyploidy
Explanation:
Sympatric speciation will occurs when a new species when two groups from the same ancestral population evolve without any geographical separation.
Autopolyploidy will appear when an individual possess more that two sets of chromosomes both from the same parental species
Therefore, since a new species was formed as a result of autopolyploidy. The type of speciation that occurred was Sympatric speciation.
trans fats can be reduced to less than 1 percent of calories
Reduction in the consumption of trans fats can
reduce blood cholesterol and these will consequently lower the risk of coronary
heart diseases. Thus, food made from animals such as milk and meat products
contain small quantities of Trans fats. However, trans fats can be reduced to
less than 1 percent of calories to avoid build of plagues in the arteries called atherosclerosis.
