Answer:
The answer is A. TRUE
Explanation:
Diapedesis can be described as the movement of the blood cells in the intact walls of the blood capillaries. Diapdesis refers to the event through which passage for the blood cells is created to move towards the tissues.
The mechanism of diapedesis occurs frequently and can be observed when leukocytes move towards the site of inflammation or any injury. Diapedesis also occurs when lymphocytes are recirculated from the blood to the lymphatic system.
The nervous system works closely with the endocrine system
Plants and animals need nitrogen to make amino acids, proteins and DNA, but the nitrogen in the atmosphere is not in a form that they can use.
The answer is intercalated discs. They allow the heart muscle cells to function as one organ due to a phenomenon known as syncytium. This is where uninuclear cells fuse to form an apparent multinucleate cell. This way the heart muscle cells can contract in synch. Intercalated discs appear in the sarcomere's (of the muscle fibres) Z line.
Answer:
Here I hope this can help you with your question! :)
Explanation:
You might be travelling with other astronauts in a journey that will take between seven and 12 months, packed in a tight space. So you’ll need to stretch and probably find a way to have part of the spacecraft spinning to create artificial gravity. Having no gravity for a long time can cause a lot of painful health problems for astronauts. Then there’s the powerful cosmic radiation that comes mostly from our Sun. It can damage electronic equipment on board and create health problems for the crew. You and the crew will have to solve these problems on your own. The atmosphere is not breathable: it is only 1% the thickness of our atmosphere, mostly made of carbon dioxide, argon, and nitrogen with only a small amount of oxygen. Growing plants on Mars is not going to be easy. The soil is really salty and acidic. It is still unclear if we should bring bacteria to Mars to help plants grow (as they do on Earth). Finally, I would say any mistake in flight or during the exploration can hurt or kill you. The room for error is really narrow. Why on Earth would you engage in such a dangerous, life-threatening endeavour? I guess the answer lies in what has made humans explore throughout the centuries. We are always looking for the next frontier.