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stealth61 [152]
3 years ago
9

You come across a website that states Homo rudolfensis was a slightly larger version of Homo erectus found in Canada in the eigh

teenth century. Based on your knowledge of physical anthropology, though, you know that this website is bunk because:1. Homo rudolfensis and Homo habilis are the same species.2. Only Homo sapiens reached North America.3. Fossil hominids were not found until the nineteenth century.4. All of the above
Biology
1 answer:
defon3 years ago
3 0

Answer: The answer is 4- All of the above.

Explanation:

The numbers 1-3 are wrong because;

1- Homo rudolfensis and Homo habilis are not the same due to the fact that they both posses different characters. For example, Homo Rudolfensis was discovered having a larger brain size compared to Homo Habilis which is smaller, the teeth of Homo Rudolfensis are not preserved, they have square upper jaw, slightly developed brow ridge, they have a larger face which is also flat and longer. However, the Homo Habilis have small upper jaw with human like teeth, round upper jaw, strongly developed ridge brow and a small face which is not very flat.

2- Records show that Homo Erectus also dispersed into North America.

3 Fossil hominids have been dated to have existed about 7-8 million years ago

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3 years ago
Which answer best defines what the Lotka-Volterra predator-prey model mathematically describes?-The competition among many preda
yanalaym [24]

Answer:

The simultaneous effect of a predator population on a prey population and a prey population on a predator population over time.

Explanation:  

The mathematical models of Lotka-Volterra equations explain the existing interaction between species in which prey and predator influence and affect each other. The model follows a few assumptions,    

  • The ecosystem is isolated and closed. There is no migration.
  • The whole individuals are reproductively equivalent.
  • In the absence of the predator, prey shows an exponential growth rate. The prey is in the ideal environment.  
  • When there is no prey, the predator population decreases exponentially because of the lack of food. The predator environment is ideal, but it is limited by prey density.  
  • The predation rate is proportional to the encounters rate, which also depends on density.  
  • The predators affect the prey populations, inducing its decrease proportionally to the number of prey and predators present.  
  • The prey population also influences the predator population proportionally to the number of encounters between the two species.  

In these equations, the variable D is the number of predators, and P the number of prey items.

The parameters are always constant:  

• r1: prey growth rate.  

• a1: predator hunting success.  

• r2: predator growth rate.  

• a2: the success of the predator in hunting and feeding.

In nature, many factors affect interactions, such as dense-dependent factors and dense-independent factors. Also, in reality, there are stochastic factors. Stochasticity refers to the variability in the system involving those factors that are affecting or influencing population growth. Stochasticity might be related to good years and bad years for population growth.

In real situations, the compliance of the whole assumption does not occur. The previously mentioned constants might vary, constantly changing the interaction between the predator and the prey. These parameters change in different degrees, resulting in varying circumstances for both species.

3 0
4 years ago
When explaining to your friend how to use a food processor, what are 2 pieces of important information to remember?
Masteriza [31]

Answer:

the 2 pieces are first check the power wattage different areas have different wattage things,then blades u need to cut the food do not touch them you will lose a finger

Explanation:

hope I helped

5 0
3 years ago
Please help me!!
quester [9]

Answer:

A. AAU GAU ACU GCA GC would be the mRNA sequence.

B. Asparagine, Aspartic acid, Threonine, Alanine, (I couldn't get the last one.)

C. AAU GUA CUG CAG C

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A. You need to switch A to U, C to G, G to C, and T to A

B. I used the full names of the amino acids. I didn't use the abbreviations on the codon chart.

C. After the 5th nitrogen base, you need to move the rest of the bases into the "3 letter groups."

P.S. you gave "CG" at the end of the original sequence. I couldn't completely answer for that codon. If you weren't given that last base, that is OK.

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