Explanation:
Innate behavior is an instinctive behavior you are born with. Example; Infants cry to let caregiver know they need food, water, love etc.
The answer is instinct behavior.
Answer:
1. Integumentary System
2. Digestive System and Endocrine System
Explanation:
An organ system combines multiple organs to perform one or more biological functions.
The integumentary system which human skin, is an organ system that protects the outer body. So the stretch marks women experience during pregnancy are evident on the skin, and since it was mentioned in the question that "A mother's body undergoes many changes to accommodate the developing fetus during pregnancy" it can be concluded that the skin stretched due to fetus development.
The digestive system here, the liver, can get disordered by a liver disease known as Cholestasis, which alters the flow of bile produced by the liver for digestion and can lead to bilirubin buildup poisoning blood and causing itchiness that can be experienced during pregnancy.
The Endocrine system is the Hormone center of the body, it affects the mood, and can cause itchiness too.
Answer:
Explanation:
Weathering can best be defined as the physical, chemical and biological disintegration of rocks to form sediments and soils.
It is an important natural process that has sculpted landscapes and produced useful Agricultural soils over decades.
From the definition, one can extract three main types of weathering.
- Physical weathering is also known as mechanical weathering. It is the breaking down of rocks to form soils by physical means. The freezing and thawing of ice, thermal expansion of rocks, salt crystal growth, pressure release e.t.c causes chunks and bits of rocks to fall off and form soils.
- Chemical weathering is the decomposition of rocks to form sediments and soils. It involves oxidation, carbonation, hydration and even hydrolysis of rocks to form soils.
- Biological weathering utilizes the life activities of plants and animals to drive weathering. Burrowing animals breaks of chunks of rocks and power them into essential soil matter. Chemicals secreted during life process of plants are important to weathering.
The options are missing in the question statement. However, I managed to find from another source. These are
A.they ruled much of West Africa
B.they built large cities in the West African rain forest
C. they controlled the gold for salt exchange
D. they grew powerful through trade
Answer:
B. They built large cities in the West African rain forest.
Explanation:
"They built large cities in the West African rain forest" doesn't describe all three kingdoms of Ghana, Mali, and Songhai. Ghana, Mali, and Songhai were three of the greatest western African trading states. They controlled the trade of gold, salt, and merchandise between North Africa and sub-Saharan Africa in the 16th century. Their strong trade grew them powerful.
The answer is C) Two. Dipolar means there are two magnetic poles charging with the same magnitude but opposite polarity.
