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Amanda [17]
3 years ago
14

1. How have humans evolved in regards to their brain size, jaw

Biology
1 answer:
ale4655 [162]3 years ago
6 0

Endocasts of Homo erectus (left) and Homo sapiens (right) illustrate rapid increase in brain size. As early humans faced new environmental challenges and evolved bigger bodies, they evolved larger and more complex brains. Large, complex brains can process and store a lot of information.

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On the hawaiian islands, evidence indicates that the 50 species of plants in the the "silversword alliance" all arose from a sin
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6 0
3 years ago
The amount of heat required to change the temperature of 1 g of a substance by 1°C is defined as .
yaroslaw [1]
I think the answer you are looking for is calorie with a lowercase "c". However the substance should be water.
8 0
3 years ago
In the structure of 4-isopropyl-2,4,5-trimethylheptane, identify the primary, secondary, tertiary, and quarternary carbons
Ahat [919]

The classifications of the carbon as primary secondary tertiary and quaternary depends on the number of the carbon atoms attached to a carbon. In case, the carbon is attached to a single carbon, then it is referred as primary carbon. If the carbon is attached to two carbons, then it is referred as the secondary carbon, if the carbon is attached to three carbons then it is referred as tertiary, and if the  carbon forms all the bond with another carbon atom then it is referred as quatenary carbon.

The given below is the picture showing the primary, secondary, tertiary, and quarternary carbons in 4-isopropyl-2,4,5-trimethylheptane:


8 0
3 years ago
______________ is a way to calculate the age of an organic object by measuring the proportion of carbon-14 present. A) Calculus
Inga [223]
The answer is D: Radiometric dating
8 0
3 years ago
Read 2 more answers
Environmental factors that can influence gene expression can be internal or external.
muminat

Answer:

True!

Explanation:

Changes in gene expression can be induced by external factors like environment (diet, smoking), internal signals such as stress (hypoxia, nutrient deprivation), inflammation and tissue repair, and even genetic material such as non-coding RNAs. Genetic factors affecting gene expression

6 0
2 years ago
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