The correct answer is <span>hollow ball of cells formed after a fertilized cell undergoes cell division.
It is found in the earliest development of mammals and an embryo forms out of it.
</span><span>The definition of blastocyst
mammalian blastula in which some differentiation of cells has occurred.</span>
Answer:
The weather of San Francisco gets colder with the California current.
Explanation:
The template California´s current oceanic ecosystem is one of the most productive and diverse in the world.
The California current flows from the northern latitude, running along the occidental coast of North America, forward to the South.
The cold current makes coasts colder than the east coasts. When winds blow from the sea, they bring cold air over the land because the cold California current lowers the air temperature. Even more, winds coming from the northwest originate upwellings that bring colder water from the bottom, lowering, even more, the current temperature.
Thus the temperature of California’s coastal cities, such as San Francisco, is relatively cool.
Answer:
C. Substance B gives off OH– ions that combine with H+ ions when dissolved in water.
Explanation:
A base is a substance that interacts with water to yield excess hydroxide ions in an aqueous solution.
Bases are certain metallic oxides, metallic hydroxides and aqueous ammonia.
Bases reacts with acids to produce salts which is substance C as described in first option.
Substance A is an acid and it gives off Hydrogen ion.
Answer:
Pica
Explanation:
Pica is an eating disorder that involves eating items that are not typically thought of as food and that do not contain significant nutritional value, such as hair, dirt, and paint chips. Pica is the practice of craving substances with little or no nutritional value. Most pregnancy and pica related cravings involve non-food substances such as dirt or chalk. The word pica is Latin for magpie which is a bird notorious for eating almost anything.
Urbanization is slowly killing the ecosystem through pollution. With industrial revolution we began to affect our atmosphere, recent increase in the worlds population has magnified the effects of agricultural and economic activities. Through air and water pollution in the urban areas due to urbanization and toxic waste being indisposed it has caused a major threat to human and living organisms. There had been a rapid increase in spread of diseases not to mention experiences of long drought lifespans on the earth.