There are 206 bones in an normal adult skeleton. A typical adult human skeleton consists of 206 bones. Individuals may have more or fewer bones than this owing to anatomical variations. These include: 22 Cranial and Facial Bones; 6 Ear Bones; 1 Throat Bone; 4 Shoulder Bones; 25 Chest Bones; 26 Vertebral Bones; 6 Arm and Forearm bones; 54 Hand Bones; 2 Pelvic Bones; 8 Leg Bones; and 52 Foot Bones.

Correct Option: C

There are 206 bones in an normal adult skeleton. A typical adult human skeleton consists of 206 bones. Individuals may have more or fewer bones than this owing to anatomical variations. These include: 22 Cranial and Facial Bones; 6 Ear Bones; 1 Throat Bone; 4 Shoulder Bones; 25 Chest Bones; 26 Vertebral Bones; 6 Arm and Forearm bones; 54 Hand Bones; 2 Pelvic Bones; 8 Leg Bones; and 52 Foot Bones.

Everyone has two copies of the gene for blood type (and for most other genes as well). Since O is a recessive trait that means that someone with type O blood must have two copies of the O gene. Types A and B are dominant, and since they’re co-dominant, someone with type AB blood must have the A gene and the B gene. In reproduction, the offspring get one copy of each gene from each parent. Since the type O parent has two copies of the O gene, it’s assured that the offspring will get one of them. As for the type AB parent, the offspring has a 50/50 chance of getting the A gene or the B gene. The two possible outcomes are AO and BO. Since O is recessive and A and B are dominant, that means the possible blood types are A and B.

Correct Option: A

Everyone has two copies of the gene for blood type (and for most other genes as well). Since O is a recessive trait that means that someone with type O blood must have two copies of the O gene. Types A and B are dominant, and since they’re co-dominant, someone with type AB blood must have the A gene and the B gene. In reproduction, the offspring get one copy of each gene from each parent. Since the type O parent has two copies of the O gene, it’s assured that the offspring will get one of them. As for the type AB parent, the offspring has a 50/50 chance of getting the A gene or the B gene. The two possible outcomes are AO and BO. Since O is recessive and A and B are dominant, that means the possible blood types are A and B.

A cold blooded animal, or ectotherm, is one that does not have an internal mechanism for regulating its body temperature. Instead, a cold blooded animal relies on solar energy captured by the environment. Reptiles, amphibians and fish are examples of cold blooded animals. To change their body temperature, cold-blooded animals move to different places in their habitat. They may burrow under the ground, crawl under a log or a rock, etc. Cold-blooded means that the animals are ectothermic. They are dependent on the environment to control their body temperature.

Correct Option: B

A cold blooded animal, or ectotherm, is one that does not have an internal mechanism for regulating its body temperature. Instead, a cold blooded animal relies on solar energy captured by the environment. Reptiles, amphibians and fish are examples of cold blooded animals. To change their body temperature, cold-blooded animals move to different places in their habitat. They may burrow under the ground, crawl under a log or a rock, etc. Cold-blooded means that the animals are ectothermic. They are dependent on the environment to control their body temperature.

In physiology and medicine, hypotension is abnormally low blood pressure, especially in the arteries of the systemic circulation. Hypotension is the opposite of hypertension, which is high blood pressure. Blood pressure is the force of blood pushing against the walls of the arteries as the heart pumps out blood. If it is lower than normal, then it is called low blood pressure or hypotension. Severely low blood pressure can deprive the brain and other vital organs of oxygen and nutrients, leading to a lifethreatening condition called shock. Decreased cardiac output despite normal blood volume, due to severe congestive heart failure, large myocardial infarction, heart valve problems, heart attack, heart failure, or extremely low heart rate (bradycardia), often produces hypotension and can rapidly progress to cardiogenic shock.

Correct Option: D

In physiology and medicine, hypotension is abnormally low blood pressure, especially in the arteries of the systemic circulation. Hypotension is the opposite of hypertension, which is high blood pressure. Blood pressure is the force of blood pushing against the walls of the arteries as the heart pumps out blood. If it is lower than normal, then it is called low blood pressure or hypotension. Severely low blood pressure can deprive the brain and other vital organs of oxygen and nutrients, leading to a lifethreatening condition called shock. Decreased cardiac output despite normal blood volume, due to severe congestive heart failure, large myocardial infarction, heart valve problems, heart attack, heart failure, or extremely low heart rate (bradycardia), often produces hypotension and can rapidly progress to cardiogenic shock.

Vitamin K is a necessary participant in synthesis of several proteins that mediate both coagulation and anticoagulation. Vitamin K deficiency is manifest as a tendency to bleed excessively. Vitamin K is found in a number of foods, including leafy greens, cauliflower and, liver. However, the chief source of vitamin K is synthesis by bacteria in the large intestine, and in most cases, absence of dietary vitamin K is not at all deleterious. Vitamin K is a fatsoluble vitamin and both dietary and microbial vitamin K are absorbed into intestinal lymph along with other lipids.

Correct Option: D

Vitamin K is a necessary participant in synthesis of several proteins that mediate both coagulation and anticoagulation. Vitamin K deficiency is manifest as a tendency to bleed excessively. Vitamin K is found in a number of foods, including leafy greens, cauliflower and, liver. However, the chief source of vitamin K is synthesis by bacteria in the large intestine, and in most cases, absence of dietary vitamin K is not at all deleterious. Vitamin K is a fatsoluble vitamin and both dietary and microbial vitamin K are absorbed into intestinal lymph along with other lipids.