Ostriches are the largest living species of bird. Ostriches usually weigh 200 to 285 pounds, although some male ostriches have been recorded with weights of up to 340 pounds

Correct Option: C

Ostriches are the largest living species of bird. Ostriches usually weigh 200 to 285 pounds, although some male ostriches have been recorded with weights of up to 340 pounds

Prior of the implantation of the blastocyst the uterus of the recipi-ent mother should be made ready to receive the embryo. This is usually done with the hormonal treatment. The blastocyst is introduced into the uterus by one of the two methods - by using a catheter through the vagina and cervical canal to the womb or directly into the uterus through a cut made in the wall of the uterus. The womb of the mother under the influence of the hormones develops the endometrium and the blastocyst gets im-planted and the normal process of pregnancy continues.

Correct Option: C

Prior of the implantation of the blastocyst the uterus of the recipi-ent mother should be made ready to receive the embryo. This is usually done with the hormonal treatment. The blastocyst is introduced into the uterus by one of the two methods - by using a catheter through the vagina and cervical canal to the womb or directly into the uterus through a cut made in the wall of the uterus. The womb of the mother under the influence of the hormones develops the endometrium and the blastocyst gets im-planted and the normal process of pregnancy continues.

When it comes to greenhouse gases many of us think first of CO₂. But a large proportion of global greenhouse gas emissions are actually other gases, such as N₂O (nitrous oxide) and CH₄ (methane). The emission of methane and nitrous oxide is largely the result of agricultural activities; nitrous oxide from fertilisers and methane mostly from cows. In peat pasture areas these emissions are particularly prevalent.

Correct Option: D

When it comes to greenhouse gases many of us think first of CO₂. But a large proportion of global greenhouse gas emissions are actually other gases, such as N₂O (nitrous oxide) and CH₄ (methane). The emission of methane and nitrous oxide is largely the result of agricultural activities; nitrous oxide from fertilisers and methane mostly from cows. In peat pasture areas these emissions are particularly prevalent.

The glass lizards or glass snakes, genus Ophisaurus, are a group of reptiles that resemble snakes, but are actually lizards. Although most species have no legs, their head shape and the fact that they have movable eyelids and external ear openings identify them as lizards. A few species have very small stub-like legs near the rear vent. These are vestigial organs meaning they have evolved and they are no longer in use. These animals are also known as Glass Snakes or Jointed Snakes.

Correct Option: A

The glass lizards or glass snakes, genus Ophisaurus, are a group of reptiles that resemble snakes, but are actually lizards. Although most species have no legs, their head shape and the fact that they have movable eyelids and external ear openings identify them as lizards. A few species have very small stub-like legs near the rear vent. These are vestigial organs meaning they have evolved and they are no longer in use. These animals are also known as Glass Snakes or Jointed Snakes.

Mammals are members of class Mammalia, airbreathing vertebrate animals characterized by the possession of endothermy, hair, three middle ear bones, and mammary glands functional in mothers with young. Most mammals also possess sweat glands and specialized teeth. The largest group of mammals, the placentals, have a placenta which feeds the offspring during gestation. Among the mammals, pigs, hippopotamus, camels, giraffe, deer, antelope, cattle, sheep, goats belong to Order Artiodactyla; Order Cetacea: whales, dolphins and porpoises; etc. Mammals range in size from the 30–40 millimeter (1to 1.5-inch) bumblebee bat to the 33-meter (108foot) blue whale.

Correct Option: D

Mammals are members of class Mammalia, airbreathing vertebrate animals characterized by the possession of endothermy, hair, three middle ear bones, and mammary glands functional in mothers with young. Most mammals also possess sweat glands and specialized teeth. The largest group of mammals, the placentals, have a placenta which feeds the offspring during gestation. Among the mammals, pigs, hippopotamus, camels, giraffe, deer, antelope, cattle, sheep, goats belong to Order Artiodactyla; Order Cetacea: whales, dolphins and porpoises; etc. Mammals range in size from the 30–40 millimeter (1to 1.5-inch) bumblebee bat to the 33-meter (108foot) blue whale.