What is the name of Rh factor related to?
(A) Bear
(B) from cat
(C) from man
(D) from monkey
The term "Rh factor" is derived from the Rhesus monkey, in which the protein was first discovered. The Rh factor is a protein that can be present on the surface of red blood cells, and it is named after the Rhesus monkey because the protein was initially identified in Rhesus monkey blood during scientific experiments. The Rh factor is an important component in blood typing and can be either Rh-positive (presence of the protein) or Rh-negative (absence of the protein) in humans.
Female sterilization is called?
(A) vasectomy
(B) psychedeme
(C) tubectomy
(D) neurotomy
female sterilization is commonly referred to as tubectomy. Tubectomy is a surgical procedure in which a woman's fallopian tubes are blocked, cut, or sealed to prevent eggs from reaching the uterus for fertilization. This method of permanent contraception is also known as tubal ligation.
What is the locomotor part of hydra?
(A) pseudopod
(B) cilia
(C) tentacles
(D) None of these
If the image formed in a mirror is always erect, equal in size to the object, then the mirror is?
(A) concave
(B) convex
(C) Flat
(D) None of these
If the image formed in a mirror is always erect (upright) and equal in size to the object, the mirror is a flat mirror (plane mirror). Flat mirrors reflect light without distorting the image, producing an erect image that is the same size as the object and reversed from left to right.
Which mirror is used in solar cooker?
(A) convex mirror
(B) plane mirror
(C) concave mirror
(D) None of these
A concave mirror is used in a solar cooker. Specifically, a concave mirror focuses sunlight onto a small area, increasing the intensity of the sunlight and generating heat. This concentrated sunlight is then used for cooking in solar cookers, harnessing solar energy for practical applications.
To accomplish which action is dialysis used?
(A) Lungs
(B) liver
(C) Heart
(D) kidney
Dialysis is used to accomplish the action of kidney function. It is a medical procedure used to remove waste products, excess salts, and fluids from the blood when the kidneys are no longer able to perform these functions adequately. Dialysis helps maintain proper electrolyte balance and removes toxins from the body, which are essential roles of healthy kidneys.
Which is the most powerful muscle in the human body?
(A) finger
(B) feet
(C) jaw
(D) wrist
The masseter muscle, which is one of the muscles used for chewing and is located in the jaw, is often considered one of the most powerful muscles in the human body in terms of its force and capability. However, the term "most powerful" can be interpreted in different ways, considering factors like strength, endurance, or speed. Different muscles might be considered the most powerful depending on the specific criteria used.
Sun sign vitamin is-
(A) Vitamin A
(B) Vitamin C
(C) Vitamin K
(D) Vitamin D
Vitamin D is often referred to as the "sunshine vitamin" because our bodies can produce it in response to sunlight exposure. When our skin is exposed to sunlight, it synthesizes vitamin D, which is important for bone health and various other bodily functions.
Which element is present in both cement and bones?
(A) calcium
(B) phosphorus
(C) nitrogen
(D) silicone
Calcium is the element that is present in both cement and bones. In cement, calcium is a key component of calcium silicate compounds, which contribute to the strength and durability of the material. In bones, calcium is a vital mineral that provides structural support and strength. It plays a crucial role in various physiological processes in the human body, including muscle function and nerve signaling.
Which plant has seed but no fruit?
(A) Almond
(B) Sykes
(C) Groundnut
(D) Reed
Certain plants, like gymnosperms, produce seeds but lack fruits. Gymnosperms, including pine trees and cycads, have exposed seeds on cone scales, distinguishing them from angiosperms, which produce seeds enclosed within fruits. The absence of a fruit covering the seed is a characteristic feature of gymnosperms, a group of seed-producing plants.
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