Fossils and the geological timescale

 

 

 

 

 

write two essays in separate paragraph one paragraph for each 8-10 sentence don’t need extra information
just answer to the point
B) To understand how organisms are related to each other, we use a variation of tools at our disposal. Using
fossils and the geological timescale is one of the ways to do so. So is comparative anatomy. Is a bird’s and a
bat’s wings an analogous or homologous structure? Why? We also compare vertebrate embryos to see how
similar organisms are when they are developing. Name 2 structures found in all vertebrate embryos. We also
use molecular evidence to back our relationship understanding between the two organisms. What is
Cytochrome C? Why is it important to sequence it?
C) We did an in-depth review of the cardiovascular system. Name 2 of its main components and what do they
do. What is the function of the pericardium? We have valves in heart. What do they do? Name two of them.
Arteries and veins both carry blood, what is the difference between them? The cardiac cycle is a sequence of
events that occurs within one complete heartbeat. What’s the difference between the systole and diastole
phase?

 

Sample Solution

Fossils and the geological time scale

Bird and bat wings are analogous. That is, they have separate evolutionary origins, but are superficially similar because they have both experienced natural selection that shaped them to play a key role in flight. Analogies are the result of convergent evolution. What structures are found in all vertebrate embryos? All vertebrate embryos have gill arches, notochords, spinal cords, and prenephrotic kidneys. What is Cytochrome C? The Cytochrome complex, is a small hemeprotein found loosely associated with the inner membrane of the mitochondrion. Cytochrome C is a key protein that initiates the intrinsic apoptosis pathway. Interestingly, cytochrome C itself undergoes antiapoptotic modification by glucose metabolism (Vaughn and Deshmukh, 2008). Taxonomists routinely use the protein cytochrome C for DNA bar-coding and species identification because its amino acid sequence tends to be highly conserved among related species, with little variation between members of the same species (Hebert et al., 2003).

orried about the alarming records related to their impoverished lifestyles to encompass the associated lack of employment. i am additionally a private witness to this war as well. humans consider that there may be no want to even practice for positive jobs because it’s miles extensively popular as a “white process”; this influences the importance that mother and father place on schooling which keeps the cycle of unqualified and unskilled workers who are doomed to stay a comparable way of life. Unemployment of local individuals can be found listed around 2 to a few times the national average depending on the tribe.

Moreover, those people nonetheless worry the federal authorities and the high-quality losses related to no longer only history however additionally present day. although we overlook the unlawful seizures of the Black Hills in South Dakota where the Mount Rushmore Memorial stands or the overthrow of the kingdom of Hawaii in 1893, the Apache nation in Arizona is presently fighting a sale of their sacred alrightFlat region to separate overseas mining conglomerates. With the us being built on land taken from the Indian nations, the indigenous human beings that reside across the United States of America are raised with a popular distrust of the government and the “white man”. The continuance of dispossession makes it hard to move beyond the state’s records.

Further, violence continues to plague native individuals with the focus specifically targeting women and kids; they suffer from what may be labeled as a virulent disease of violence. native ladies are 3.five instances much more likely to be sexually assaulted or raped than ladies in different races with almost 25 percentage of local kids laid low with submit-stressful stress disease (PTSD). This price of PTSD is usually associated with Iraqi and Afghanistan warfare veterans (Pember, 2017). again, i have in my opinion experienced this as nicely. My mother left my father while i used to be very younger because of steady exposure to emotional, verbal, religious, and physical abuse. similarly, my brother and i suffered that wrath as properly. unfortunately, this changed into a quite commonplace exercise for the guys in my tribe.
If the list of generational struggles become not lengthy enough, add over

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