HIV directly attacks CD4 helper lymphocytes directly. (D)
The subdural space is the space that exists between the meningeal layer of the dura and the arachnoid mater.
<h3>What is subdural space?</h3>
The subdural space which is also called subdural cavity, is a space within the dura mater that collects blood from the small veins of the brain so we can conclude that subdural space is the space that exists between the meningeal layer of the dura and the arachnoid mater.
Learn more about veins here: brainly.com/question/393019
Actin filaments are found in cells that form cytoskeletal structures. These are generally present below the plasma membrane.
Amoebae move by crawling over a surface (cell crawling), which involves GROWTH OF ACTIN FILAMENTS TO FORM PSEUDOPODIA. Pseudopodium is a bulge in the plasma membrane towards the direction of movement.
Answer:
Explanation:
Answer 1 will be vestigial and answer 2 will be dolphins evolved from organisms with legs. Vestigial organs are those which are not in use but were once used by our ancestors for example an appendix
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