This answer is C Macronutrient
Answer:
A. The heartbeat can be heard
Explanation:
After the first trimester, during the fourth month, the heartbeat of the fetus becomes loud enough to be heard with the help of a stethoscope placed on the abdomen of the mother.
From fifth to the seventh month of the development, kicks and jabs are felt by the mother as the fetal legs grow and develops. Languo, a wrinkled pink colored skin covers the fetus.
Languo is in turn covered with a white greasy substance called vernix caseosa.
From eighth to ninth months, rotation of the fetus places its head pointing towards the cervix to facilitate childbirth later.
The development of testes takes place in the seventh month while the body hairs become disappeared in the eighth month.
<em>Structure and Function of ArthropodsArthropods range in length from about 1 millimeter to 4 meters (about 13 feet). They have a segmented body with a hard exoskeleton. They also have jointed appendages. The body segments are the head, thorax, and abdomen. </em><span><em> In some arthropods, the head and thorax are joined together as a cephalothorax.</em></span>
While leaving the laboratory temporarily in the middle of your work remove your lab coat and gloves.
<h3>Laboratory safety:</h3>
Washing your hands is the final thing you should do before leaving the lab after an experiment. Since most chemicals are somewhat harmful, wash your hands before you leave. After taking the necessary measures, inform the teacher.
With its risky processes, hazardous chemicals, and fire threats, the science laboratory is inherently unsafe. Avoid coming into contact with chemicals directly. Never taste, smell, or inhale lab chemicals. After taking off your gloves and before leaving the work area, wash your hands and arms thoroughly with soap and water. In a laboratory, never consume food or liquids, chew gum or tobacco, light up, or use cosmetics. These fundamental safety offer guidance on conduct, cleanliness, and safety to prevent laboratory mishaps.
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Answer:
Explanation:
Science is the study of the nature and behaviour of natural things and the knowledge that we obtain about them. A science is a particular branch of science such as physics, chemistry, or biology. Physics is the best example of a science which has developed strong, abstract theories.
Five key descriptors for the scientific method are: empirical, replicable, provisional, objective and systematic.
