Answer: See the explanation below, please.
Explanation:
The immune system allows us to discriminate from the outsider.
There is innate immunity which we carry from birth and protects us against antigens; correspond to barriers that prevent harmful bodies from entering the body.
It is composed of some of these components:
- Skin and mucous membranes (physical barrier): the skin has microorganisms that inhibit the growth of pathogens.
-NK cells (natural killer): they are leukocytes that recognize changes in the cell surface of cells infected by viruses and tumor cells. These target cells are recognized by NK cells, which trigger cytotoxic response and destroy them.
- Neutrophils: white balloons with granules that release enzymes that destroy and digest cells.
-Cytokines (including interleukins 1 and 6, interferons, tumor necrosis factor: TNF): they are low molecular weight proteins that generate immune system response by recruiting or inhibiting the functions of specific cells (dendritic cells) or neutrophils, regulate proliferation and cell differentiation, activate or inhibit the expression of some genes.
I am afraid there is no specific answer to your question becuase there is not only one fell good chemical, there are 4:
Endorphin, Serotonin, Oxytocin and Dopamine.
Hope it helped,
Happy homework/ study/ exam!
"1. Body composition is defined as D. ratio of muscle to fat.
2. Slow-twitch fibers are designed for D. endurance.
3. A by-product of ATP breakdown is D. ADP and phosphorous
4. A tendon is important for muscles. C. It serves as an attachment point to bone
5. Most joints in the body form B. FIRST-CLASS levers.
6. The correct statement concerning good posture is D. Good posture may help to improve balance.
7. The C. Buttocks is considered part of the pelvic girdle?
8. Fitness professionals know that good posture B. is a habit that can be learned and maintained.
9. One of the positive health-related benefits of muscular fitness is D. increased endurance during exercise.
10. The sagittal plane divides the body D. into left and right halves.
11. A normal spine appear on an x-ray B. With natural curves in the neck and lower back
12. Based on the factors of stability, A. Leg curl would be the most unstable lift
13. When you flex your arm, you're performing a/an C. CONCENTRIC contraction.
14. The three body systems that benefit from good posture are B. Digestive, circulatory, and respiratory
15. C. IRON is essential for both bone health and muscle contractions.
16. B. FASCIA is the type of tissue that covers and separates skeletal muscles, providing shape and aiding in function.
17. The most common debilitating disorder among Americans under age 45 is C. tension headaches.
18. Tension headaches usually begin in the D. neck.
19. When you sit with good posture, your spine should be A. very relaxed.
20. A/an C. NEUTRAL spine is one that allows for natural curves and arches.
21. Posture and muscular balance can usually be improved by A. exercising and stretching.
22. D. SYNOVIAL is a freely movable joint?
23. Postural muscles tend to C. WEAKEN if they aren't regularly stimulated to produce adequate force.
24. Aerobic production of ATP comes from D. CARBOHYDRATES during high-intensity training.
25. Standing on your toes is an example of D. Second class lever.
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Answer:
Genome, chromosomes, and genes are all different DNA structures related to each other.
Explanation:
The genome is the set of hereditary material of an organism, the sequence of nucleotides that specify the genetic instructions for its development and functioning and that are transmitted from generation to generation, from parents to children.
The genome is organized into chromosomes, chromosomes are X-shaped supercoiled DNA structures. Each species has a characteristic number of chromosomes. In the human species each somatic cell has 22 pairs of autosomal chromosomes and one pair of sexual chromosomes (X and Y).
A gene is a unit of DNA information that encodes a functional product, such as proteins. Genes represent approximately 1.5% of the genome. Each gene have a location within the chromosomes called locus.
