Hello there.
<span>The crossing over is a process where the chromatids pair and exchange sections of DNA, which lead to exchange genes (this result is call genetic recombination). So, the crossing over between nonsister chromatids during meiosis is significant in heredity because it leads to an increase of genetic variation (answer d.)</span>
B. Composition mostly hydrogen and helium gas Mass 1.989 × 10³⁰ kg
Explanation:
The best data that describes the sun is that it's composition is made up of mostly hydrogen and helium gas with a mass of about 1.989 x 10³⁰kg.
- The sun is the largest body in our solar system and all planetary bodies revolves round it.
- At the core of the sun, nuclear fusion is occurring.
- Here, small atomic nuclei combines into larger ones with the release of a large amount of energy.
- The small nuclei are hydrogen and they produce helium.
- This process produce energy for the whole solar system.
- The sun is best defined as giant hot ball of gases.
Learn more:
Sun's energy brainly.com/question/1140127
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Answer:
The correct answer will be- lesioning
Explanation:
Lesioning is a technique used to treat severe movement disorders related to Parkinson's disease.
In lesioning, the lesions (damage) are created in a small part of the brain related to the movement by sending an electric current through a thin insulated wire.
This technique nowadays used in research centres to study the different parts of the brains to study the functions related to the brain.
Thus, lesioning is the correct answer.
Answer:
Hey there, the question has no options but don't worry I will give you some of the functions of lymphatic system, so you can deduce the wrong one from your options.
Explanation:
Lymphatic system is a large collection of vessels that drains fluid called lypmp towards the heart. It is a part of the circulatory system of the body.
The lymphatic system peforms some of these functions; it drains interstitial fluid from tissues; it helps in the absorption of fatty acids and fats from the digestive system; it also assists in immune response by transporting antigens to the site of infectious impact; it also transport white blood cells to the bones.
So basically, lymphatic system helps in transport, immune response, fat reabsorption in the digestive system. It transports the remaining blood or fluid about 3litres of the filtered plasma which is not absorbed into the blood stream. The fat absorption is by lymph nodes called lacteals. Any other functions out of these groups of answers is sure not associated with the lymphatic system of the body.
Salivary amylase
Explanation:
In the tongue, salivary amylase is the first enzyme to mix with food in the digestive tract. It is the primary enzyme of saliva. Salivary amylase is secreted from the salivary glands (mainly parotid glands) in the buccal cavity.
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