One of the tests most commonly used method to determine how close a certain fossil organism to the living organisms is first through physical features. There is also testing of chemicals present in the fossil and test the similarities of these chemicals with those present in the living organisms.
Answer:
Forest ecosystems in Pakistan are no exception and the country faces a crisis as its growing population ([ 208 million) places increasing pressure on the country's food production systems and forest resources. Effective food systems that enhance productivity, increase economic outputs, improve ecological outcomes and maintain social acceptance are needed. Agroforestry, a traditional land management system in Pakistan, offers the opportunity to meet these goals. Planting trees on private farmland provides clear ownership of any timber resource and well managed systems have great potential both to boost agriculture and reduce wood shortages.
Western Honey Bee: They Pollinate The Earth by spreading Pollen around that has latched onto their feet while they took a walk on the flower head. Bull Frog: Eats flies, lays eggs, lowers the amount of insects near the area, increases the population of bullfrogs. Homo Sapiens Epoch 74 ( humans ) : Pollute the earth, kill animals, make a mess, overpopulate the world, leaves barely any room for animals. Hamsters: Digs holes in the ground, eats seeds, poops everywhere, sometimes eats bugs.
Answer:
The human mitochondrial DNA is inherited by matrilineal inheritance and it is more sensitive to damage than nuclear DNA.
Explanation:
The mitochondrial DNA (mtDNA) is a DNA molecule localized in the mitochondria (i.e., independent from the nucleus). The mtDNA is more prone to suffer mutations than nuclear DNA due to 1-higher damage produced by reactive oxygen species (ROS) and 2- the absence of nuclear DNA repair pathways. The mtDNA is generally inherited from the mother (both in plants and animals), it is for that reason that mitochondrial genes are powerful molecular markers used in phylogeographic studies to trace the evolutionary origin of a given species/population.
Explanation:
This is because a gamete will go fuse with another gamete and the sets of alleles from both will combine to form the required diploidy required for growth to a mature organism. If the gametes were diploid, then when two gametes fuse, the resulting zygote would be tetraploidy. Unless this is the natural ploidy for the organism – like in some plants – then the resulting zygote would not develop or the resulting mature organism would have abnormalities.