Answer;
A. Movement in his lower extremities
Explanation;
-The 1st lumbar vertebra or the L1 vertebra is the smallest and most superior of the lumbar vertebrae. As the first vertebra in the lumbar region, the L1 vertebra bears the weight of the upper body and acts as a transition between the thoracic and lumbar vertebrae.
-The lumbar vertebrae contain spinal cord tissue and nerves which control communication between the brain and the legs.
The Himalayan region is located at a height of more than 3300m above sea level. Similar to Terai, the hilly region's altitude spans from 600 to 3300 meters above sea level. In Terai, it is hot, whereas the Himalayas are frigid. In the Hilly region, the temperature is moderate and neither hot nor cold.
<h3>How the Himalayan differ from the Terai region ?</h3>
Due to differences in geographical makeup and height, the mountainous, hilly, and Terai regions differ from one another. Mountains are found in high elevation.
- Bengal tigers are most numerous in the Himalayan grasslands, where they coexist with Asian elephants and one-horned rhinos. Red pandas, golden langurs, and takins can find refuge in the highlands. Bengal tigers and snow leopards are only known to coexist here in the globe.
- Rhododendrons are found all throughout the world, although they are more prevalent in the wetter regions of the eastern Himalayas, where they can grow as tall trees or short shrubs. In the alpine zone's lower elevations, when humidity is high, mosses and lichens thrive; flowering plants are found at higher elevations.
- Sloths, Himalayan black bears, yellow-throated martens, Himalayan gorals, Ganges dolphins, gharials, and crocodiles are some other rare animals. Human-animal conflict is a pressing issue in the Terai Arc, which encompasses a substantial portion of the state of Uttar Pradesh.
- Cycas pectinata, Gnetum montanum, Duabanga grandiflora, Calamus species, Cythea pinulosa, Pandanus nepalensis, and Podocarpus neriifolius are examples of the typical vegetation in this area. The Terai region as a whole is dominated by Shorea robusta (sal).
To know more about the Himalayan region please click here : brainly.com/question/26697261
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Once the DNA of a person has been copied it can be compared to the DNA of other people by using PCR (Polymerase Chain Reaction).
<span>A) Humans and other apes represent divergent lines of evolution from a common ancestor. I feel would be the answer that makes the most sense. </span>
The answer is: <span><span>has antigens A and B on the red blood cells
</span>
Human blood contains either:
A antigens (A)
B antigens (B)
A and B antigens together (AB)
none of these antigens (O)
corresponding to the A,<span> B</span>,<span> AB</span>, and O blood types, respectively.
Antigens are molecules that can cause an immune response to be mounted against them in the form of antibodies. Antigen is an abbreviation for 'antibody generator'.
In the case of the ABO blood groups, the antigens are sugars on the red blood cells.
Antibodies are complex proteins made by certain immune cells, and these proteins have the ability to bind foreign material or microbes, which can block their harmful action and label them for quicker elimination.
Example:
When a person has a blood type with a particular antigen (e.g. A), he or she won't produce antibodies against that blood type, so they are safe to receive blood from individuals with similar blood types (won't be considered foreign). They can also receive blood from blood type O donors because they don't have any antigens that would cause an immune response.
But this person with blood type A, has antibodies against blood type B (to defend oneself from foreign material), so if they were transfused type B blood in this case, they would experience a dangerous immune reaction as the antibodies would bind the B antigens of the B blood type red blood cells.
<span>
Blood type O individuals are universal donors = can donate blood to anyone.
Blood type AB individuals are universal receivers = can receive blood from any group.</span></span>