Answer:
Mass extinctions have occurred throughout the planet's history and in many of them primate species also have been extinct. Climate change was the cause of some of these extinctions. For instance, between the end of the Eocene and the beginning of the Oligocene global climate became drastically colder and drier, resulting in a decrease in the food supply and in the consequent extinction of several species of adapid and omohyoid primates from America, South Europe and Asia. Extinctions due to climate change can be triggered by both catastrophic global events and the planet's natural climate dynamics.
Non-climate related environmental events also occurred throughout the evolutionary process, affecting primate populations and species and eventually causing their extinction. Changes in geographic space can lead to interaction between different species and populations and consequently competition for resources, excessive predation or pathogen transmission (a phenomenon called “Background extinction”), and all these factors also contributed to the disappearance of some primate species. This type of extinction includes those most recently caused by human action.
The fraction of offspring that the Punnett square predict will be tall is ¾ (option C).
<h3>What is the punnet square?</h3>
The punnet square is a graphical representation used to determine the probability of an offspring expressing a particular genotype.
The punnet square is used to predict the percentage or proportion of offsprings of a cross that possess a specific genotype.
According to this question, a punnet square shows a cross between two tall pea plants. The allele for tall height (T) is said to be dominant while the allele for short height (t) is recessive.
If two heterozygous genotype crosses i.e. Tt × Tt, the percentage of offsprings that will be tall is 75% or ¾.
Therefore, the fraction of offspring that the Punnett square predict will be tall is ¾.
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Answer:
D)<12.5%
Explanation:
Transgenic means one or more than one DNA sequences are introduced from another species by an artificial means into a surrogate dams to form a new offspring. Animals are usually make transgenic by a small sequence of the foreign DNA which is injected to the developing embryo of the surrogate mother.
The success rate for such implementation is nearly less than 12.5%, where most of the trial do not survive the injection. The surrogate mother cannot developed in most cases the implementation of one or more species into another.
Its D all of them are correct
I believe, for the artery, they have, an open, circular lumen an a thick media
Veins on the other hand, have somewhat collapsed lumen and a thinner media. Arteries are blood vessels that carry blood out of the heart to other parts of the body, all arteries carry oxygenated blood except the pulmonary artery which carries deoxygenated blood from the heart to the lungs. Veins carry blood from other body parts to the heart, all veins carry deoxygenated blood except the pulmonary vein which caries oxygenated blood from the lungs to the heart.
