Answer:
C. Standing upright allowed for sightlines over tall grasses and savanna shrubbery
Explanation:
One of the most accepted theories about the development of bipedalism of the hominids is that it was mostly because of the tall grasses and shrubs, so standing upright was providing them with better view. Once the environment changed, and the tropical rainforest was turned into savanna, the hominid ancestors had to adapt in order to survive. Being helpless against the large predators, they needed something in order to be able to detect them from bigger distance so that they can avoid them. The solution seemed to be to be able to see above the tall grasses and shrubs, which meant that they started to use their legs more and more in order to stand up taller. This gradually led to better development of legs for upright standing and walking, also causing changes in the structure of the body, providing the hominids with an adaptation that enabled them to survive in the very dangerous environment.
Answer:
The statement that best describes the graph is Carla slowed down in the beginning of her trip, stopped, and then sped up.
Explanation:
Data:
Horizontal axis = time.
Vertical axis = velocity (m/s).
A line runs in straight segments
- <em>from 0 seconds 15 m/s.</em>
- <em>to 1 seconds 13 m/s.</em>
- <em>to 2 seconds 10 m/s.</em>
- <em>to 3 seconds 4 m/s.</em>
- <em>to 4 seconds 0 m/s.</em>
- <em>to 6 seconds 4 m/s.</em>
According to the data present in the graph, it can be seen that Carla starts with a speed in her career, which decreases over time. After four seconds she stops, remains stopped for one second and starts running again, with an initial speed of 4 m/s.
<em>In conclusion, the graph show Carla -who is moving- slows down until she stops, and then starts the race again.</em>
Please make sure that you post a complete question. This is the part missing:
- <span>How might this offset transcription or translation errors?-
The existence of several codons that code for the same amino acid ensure that even when a mistake in the processes of transcribing the sequence from DNA to mRNA or translational errors, there is still a significant chance of correct amino acid being added to the protein.</span>
By producing progeny cells that include plasma cells and memory cells