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ohaa [14]
3 years ago
12

The fossil record documents trends in which brains that are large relative to body size evolved in certain lineages, including h

ominins. in such lineages, what can you infer about the costs and benefits of large brains?
Biology
1 answer:
REY [17]3 years ago
7 0
The correct response is this: NATURAL SELECTION FAVORED THE EVOLUTION OF LARGER BRAINS, THIS SUGGESTS THAT THE BENEFITS OF LARGE BRAIN OUTWEIGHS THE COSTS.
In fossils record, the shift from Australopithecus to homo is characterized by larger body and brain sizes and all through subsequent evolution, brain size has to continue to get bigger. The possession of large brain make man to be much more advanced in thinking than all other animals.
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Imagine that part of a population of South American finches is blown by a storm onto an island far offshore and manages to survi
lina2011 [118]

Answer: The observation "A" leads us to conclude that the finches populations are from two different species

Explanation:

According to the biological concept of species, <em>a set of individuals are from the same species if they are able to reproduce and leave fertile offspring</em>. This is key so one species can be successful and perpetuate through time. If they cannot leave descendants, then the species will be extinct. However, it’s possible that two individuals from different species mate and have descendants, but they cannot leave fertile offspring. When they are from different species, the offspring will be sterile and it is called a hybrid.  

In the case of the South American finch, the island's finch population and mainland's finch population belong to different species because their offspring is sterile. To have different features, as different feather's color, or to have other dietary preference is not enough to say that they are different species. This is because within the same species, individuals can have variations. For example, we can different eye color and belong to the same species.

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3 years ago
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lakkis [162]

Answer:

D) infectious proteins with no associated nucleic acid.

Explanation:

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Which energy-rich molecule produced by cellular respiration directly powers cell work?.
GaryK [48]

Answer:

A single glucose molecule produces about 38 molecules of ATP through the process of cellular respiration.

Explanation:

Cellular respiration is a metabolic pathway that breaks down glucose and produces ATP.

I hope this helps. :)

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