I think it’s either the first or last one
Research participants’ uses occipital lobes when they
are engage in tasks that require the construction of mental image. <span>The location
of occipital lobe is in
the back portion of the brain behind the parietal and temporal lobes that is primarily
responsible for processing visual information. It contains the brain's visual
processing system, which processes images from our eyes and links that
information with images stored in memory or called visual-spatial processing. Other
function includes movement and color recognition.</span>
Non-bird dinosaurs lived between about 245 and 66 million years ago, in a time known as the Mesozoic Era. This was many millions of years before the first modern humans, Homo sapiens, appeared.
Answer:
2.6 billion years old
Explanation:
Initial:
100% k-40
0% ar-40
After 1.3 billion years:
50% k-40
50% ar-40
After 2.6 billion years:
25% k-40
75% ar-40
So the rock is 2.6 billion years old.
Answer:
Difference in their beak size, colour of their feather and body size.
Explanation:
The genetic variation that occurs in the three different species of bird is the difference in their beak size, colour of their feather and body size. The difference of beak size occurs due to difference in their food selection that is available to the birds. Some birds of the population feed on small food particles having small beak size whereas other have large beak size due to preference of large food materials. Some birds have colour like their surrounding that helps them to hide from their predators. Some birds specie have large body size due to availability of more food or due to genetics.