b. area of square c2 = area of square a2 + area of square b2 + area of defect1 – area of defect2
c. area of square c2 = area of square a2 + area of square b2 – area of defect1 – area of defect2
d. area of square c2 = area of square a2 + area of square b2 + area of defect1+ area of defect2
e. area of square c2 = area of square a2 - area of square b2 + area of defect1 - area of defect2
Answer: c. area of square c2 = area of square a2 + area of square b2 – area of defect1 – area of defect2
(Option C)
Explanation:
The cosine rule helps to determine the different angles and sides of a triangle. The cosine rule is helpful when you need to find the third side of the triangle when the other two sides of the triangle are given and the angle between them.
B)Seeds are protected and nourished by a fruit
C)The zygote is the first cell of the gametophyte phase
D) Fertilization produces a diploid cell.
Fertilization produces a diploid cell is the common phase that occurs in the life cycle of both the moss and fern. Hence, the correct option is D.
Fertilization refers to the fusion of haploid gametes of the male and female to produce a diploid cell, which is called zygote.
Mosses belong to bryophytes and ferns belong to class pteridophytes. Both undergo sexual and asexual reproduction. They undergo asexual reproduction by the production of spores, while sexual reproduction with the formation of gametes.
Both undergo oogamous mode of sexual reproduction with the formation of zygote that is diploid in nature. It is facilitated by the fusion of non-motile female gamete with the motile male gamete, which is termed as sperm.
Therefore, the correct option is D.
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Answer;
D) Fertilization produces a diploid cell.
Explanation;
In mosses; A single spore germinates to form a branched, filamentous protonema, from which a leafy gametophyte develops. The gametophyte bears organs for sexual reproduction. Sperm, which are released by the mature antheridium (the male reproductive organ), are attracted into the neck of an archegonium (the female reproductive organ). Here, one sperm fuses with the egg (fertilization) to produce the diploid zygote.
The life cycle of a fern is very different from the life cycle of many other plants. Ferns have an intermediate stage, called a gametophyte, which then grows into a mature fern. During Gametophyte stge, the spores are produced on the underside of mature plants. These will germinate and grow into small, heart-shaped plants called gametophytes. The gametophytes produce both sperm and egg cells, and will fertilize itself, or others to yield a diploid cell.
Answer: The clavicle
Explanation: The clavicle is a long, slender bone that connects the shoulder to the breastbone, is commonly referred to as the collarbone and is often visible just beneath the skin.
The bone known as a collarbone is called the clavicle. It articulates with the manubrium of the sternum medially and the acromion of the scapula laterally.
The bone known as a collarbone is called the clavicle. It is an elongated bone that articulates with the manubrium of the sternum medially and the acromion of the scapula laterally. The clavicle has three regions: the medial end, the lateral end, and the shaft. It forms the sternoclavicular joint with the manubrium of the sternum and articulates with the acromion of the scapula. Despite its vital function, the clavicle is one of the most commonly fractured bones in the body. This is often due to its positioning and the amount of force exerted upon it during activities such as a fall whilst arms are outstretched. Despite potential incidents, the surpassing structure of the clavicle helps keep the underlying blood vessels and nerves intact during fractures.
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B. 32 units
C. 128 units
D. 256 units
2. If the strength of the magnetic field at B is 6 units, the strength of the magnetic field at A is _____.
A. 1.5 units
B. 0.75 units
C. 24 units
D. 10.6 units
1. The strength of magnetic field at A is 64 unit, then the magnetic field strength at B. is 256 units.
64 × 64 = 256 units.
2. If the strength of magnetic field B is 6 units then the strength magnetic field at A is 24 units.
which is 256 : 4 = 16 units.
Magnetic field is one of the two ways where the intensity of magnetic field is being expressed.
Answer:Question 1 = 256 units
Question 2 = 24 units
Explanation: The answer is based on the inverse square law of magnetic force which states that the magnetic force is proportional to the strength of the field and inversely proportional to the square of the distance between them.