Answer:
Leukopenia decreases the body ability to fight infection
Explanation:
There are three major types of cells in the blood namely: platelets, red blood cells (erythrocytes) and white blood cells (leucocytes). These cells perform individual functions in the blood tissue, however, the cell saddled with the responsibility of fighting against foreign bodies and preventing the body against infection is the WHITE BLOOD CELL (LEUCOCYTES).
According to this question, Leukopenia is a condition characterized by a decrease in the number of white blood cells in the blood. The effect of this decrease in number of white blood cells caused by Leukopenia is a DECREASE IN THE BODY ABILITY TO FIGHT INFECTION.
The site which has yielded a sample is A)Atapuerca which is representing about twenty-eight premodern homo sapiens individuals. So, correct option is A.
Atapuerca, site of a few limestone caves close to Burgos in northern Spain, known for the bountiful human (sort Homo) stays found there starting in 1976. The site called Sima del Elefante ("Pit of the Elephant") contains the earliest proof of people in western Europe — parts of a jawbone and teeth date to 1.1-1.2 quite a while back.
The close by site of Gran Dolina contains human remaining parts dating to around quite a while back and probably the earliest devices tracked down in western Europe.
Paleoanthropologists who previously portrayed the fossils credited them to another species, H. antecessor, which they proposed as the progenitor of present day people (H. sapiens) attributable to specific particularly current facial highlights. Different scientists, nonetheless, wonder whether or not to acknowledge this declaration and gathering the fossils with comparable remaining parts named H. heidelbergensis.
Hence, correct option is A.
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(Complete question) is:
Which of the following sites, dated to approximately 300,000 years ago, has yielded a sample representing about twenty-eight premodern homo sapiens individuals?
a. Atapuerca
b.Ehringsdorf
c. Steinheim
d. Swanscombe
e. Petralona
Answer;
-Stereocilia
Explanation;
-Stereocilia are not true cilia, they are very long projected microvilli, incapanble of movement on their own, in ear and male reproductive tract.
-Stereocilia are different from cilia, even though they have a similar name. They are more closely related to microvilli, and some may well consider stereocilia to be a variant of microvilli. They share some features of microvilli. However, stereocilia’s distinctive characteristics are their length and lack of motility. Stereocilia are basically apical modifications of the cell.
-Stereocilia are mechanosensing organelles of hair cells, which respond to fluid motion, or changes in fluid pressure in numerous types of animals for various functions, primarily hearing.
Muscles and human skeleton are very much connected with each other.
<h3><u>Explanation:</u></h3>
Muscles form one of the 5 systems of our body. They consists of both the skeletal muscles as well as the smooth muscles of our body. While the smooth muscles are the part of the organs, the skeletal muscles are attached with bones either directly attached, or they are attached with the bones by means of tendons. These muscles are formed of cells called sarcomeres and they are the structures which make the bones move. Bones ars like the rods and muscles are like hydraulics. So they are collectively called as musculoskeletal system.
Skeletal system is referred to as the collection of each and every bones of our body which is roughly 206 bones, and their organization in body helping us to stand and move.
