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tatyana61 [14]
4 years ago
15

How did bipedalism in humans support the evolution of our skulls?

Biology
2 answers:
aleksandrvk [35]4 years ago
8 0
The evolution of human bipedalism which began in primates about four million years ago or as early as seven million years ago with sahelanthropus has led to morphological alterations to the human skeleton including changes to the arrangement and size of the bones of the foot, hip size and shape, knee size, leg length, and the shape and orientation of the vertebral column. The evolutionary factors that produced these changes have been the subject of several theories.
nasty-shy [4]4 years ago
4 0
We could do thing with our hands without having to use some of our energy in getting up to try to balance on our two rear legs.

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Free_Kalibri [48]

It has more similarity to fossils in layer A than layer D.


4 0
3 years ago
Read 2 more answers
The hormones in boys responsible for producing male characteristics are Testosterone and ___ .
leonid [27]
The primary hormones involved in  the functioning of the male reproductive system are follicle stimulating hormone (FSH),Luteinizing hormone (LH) and Testosterone.

Hope this helps.
4 0
3 years ago
Similarities between plants and animals​
zepelin [54]

Answer:

Plants and animals are living things. They feed, respire, excrete, grow, move, reproduce and are sensitive to their environment. Animals and plants need food for energy but they feed in different ways.

4 0
3 years ago
What can you conclude is one disadvantage of the arrangement of glucose molecules that gives chitin and cellulose their strength
Lynna [10]
The correct answer is the option B) It does not allow for the accumulation of glycogen and, therefore, limits the organism's mobility.
Explanation:
In cellulose and chitin the arrangement of glycogen in in alternate arrangement that provides the support to the plants that makes it strong and the limits its mobility.
If plants lac their special arrangement of the glycogen in chitin and cellulose the water will flow in and it will not be stand upright.
Thus, the correct answer is option B) It does not allow for the accumulation of glycogen and, therefore, limits the organism's mobility.


5 0
1 year ago
The reaction-center chlorophyll of photosystem I is known as P700 because
jonny [76]

Answer:

The correct answer will be option-B.

Explanation:

Photosystem of a plant is complex pigment-protein molecules which absorbs the light energy required for the formation of a glucose molecule.

Two types of Photosystem are present in the plants which are: P₆₈₀ and P₇₀₀. The 680 and 700 denote the wavelength of the light energy absorbed by the pigment of the chloroplast. The electrons get excited only at their absorbing wavelength.

Thus, Option-B is the correct answer.

3 0
3 years ago
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