Week Seven Notes: The Stepsirhines: Lemurs and Lorises Prosimians(Same thing as Stepsirhines): Lemurs, Lorises, Tarsiers: Most primitive of the primates Exhibit the fewest derived traits (as a group) of all primates Ancestral Characteristics (ie. Inherited from mammals) • Rely more on olfaction • Moist noise and long snout • Eyes slightly more lateral Classification of Prosimians: Lemurs, Lorises, and Tarsiers Order- primates Suborder: Strepsirhines (used to be Prosimians)…
Ingram, Amanda L., and Jeff J. Doyle. "The Origin and Evolution of Eragrostis Tef (Poaceae) and Related Polyploids: Evidence from Nuclear Waxy and Plastid Rps16." American Journal of Botany 90.1 (2003): 116-22. Print.…
Clues to the age of the fossil came from key features in the landscape; such as…
Evert, RF & Eichhorn, SE. 2013. Raven Biology of Plants, 8th ed. USA: W.H Freeman and Company.…
The discovery of the Comb jelly which was the first animal fossil was a shocking and unexpected event to most scientists in the world. Scientists had a specific view about evolution. They thought that organisms evolve from a simple state to a more complex state. But that was not the case for the comb jelly which unlike what scientist thought was a very complex specie. It was so complex that it had a nervous system and tissues. But that was not the only misconception that they had to face. Another problem was that scientist believed for so long that the sponge was the first animal fossil, but this discovery has changed the order of species in the tree of life. They could not find the date of when Comb jellies have first existed. But if there existence predates the existence of…
Jared Diamond uses a variety of resources to answer Yali’s question. He uses radio carbon evidence to show when and where certain plants or animals were…
46. During germination in most angiosperm seeds, food for the growing embryo is provided by the…
evidence of seeds found in Ecuadorian caves from up to 12,000 years ago. Squash was…
b. Linneaus: developed binomial nomenclature system, nested classification system (KPCOFGS). Did not ascribe similar characteristics to evolution, but to pattern of creation.…
MM.19 Which scientist is considered to be the first student of natural history, the study of the variety…
Briefly describe their religion and how it is interrelated in everything they do. What is a mama? Describe the mamas and their religion using anthropological concepts related to religion. What is their prediction for the world? What kind of evidence are they using to support their prediction?…
Angiosperms have a wide distribution in the biosphere and the largest number of species in the plant kingdom. An angiosperm is seed plant that produces flowers and fruits. Angiosperms are divided into monocots and eudicots. They are classified in Anthophyta. There are four structures for reproduction found in angiosperms. These structures include fruits, petals, stamen, and carpel. Fruits, which are the matured ovaries of plants helps to disperse the seeds of angiosperms. By being tasteful, more animals are attracted to the fruit therefore allowing the fruit to be dispersed. The petals of the flower attract pollinators, due to their appearance. Flowers have evolved to attract animals to transfer pollen between individuals in dispersed populations. Stamens are the male reproductive structure, they produce microspores in the anthers of a flower to produce pollen grains. Pollen is able to be transferred by wind due to its waterproof coating. The carpel of an angiosperm is the female reproductive structure, which produces female gametophytes with eggs. The carpel helps to create and ovule. The ovule protects the eggs and zygote, it is an a adaptation which increases reproductive fitness.…
Drugs: Angiosperms (flowering plants) first evolved toward the end of the dinosaurs’ reign. Many of these plants contain psychoactive agents, avoided by mammals today as a result of their bitter taste. Dinosaurs had neither means to taste the bitterness nor livers effective enough to detoxify the substances. They died of massive overdoses.…
Eisely states the first types of plants to appear were “wandering fingers of green” that crept along river systems as well as primitive ferns and mosses.…
These one-celled organisms helped to make the air and water around the Earth full of oxygen, forming new life. Next, photosynthetic organisms became part of Earth by using carbon dioxide from the atmosphere, and releasing oxygen. The last life form to develop in this era were simple soft bodied animals, since soft bodies do not have vertebrates there are not many fossils as evidence from this era. Scientists know that one-celled organisms, photosynthetic organisms, and soft bodied animals were the first species on earth by the following information, “The amount of C-14 in any sample of carbon containing material can be found by measuring the level of radioactive decay, and comparing that with the decay rate observed in a carbon sample exposed to the continual mixing at the surface of the earth of C-12 and C-14 produced in the upper atmosphere. Using the ratio of C-14 to total carbon, one can determine the age of the sample.” As a culmination, carbon dating, examining index fossils, and using relative dating reveal to scientists the milestone of the first organisms in the Precambrian…