Answer the following question given this paragraph: Why does it snow instead of rain? Air temperature determines which type of precipitation falls. Rain falls if the air temperature is above freezing (0 C or 32 F). Frozen precipitation falls if the air or ground is below freezing. Frozen precipitation may fall as snow , sleet , or freezing rain . Below, you can see how the different types form ( Figure below ). Q: What determines which type of precipitation falls in the atmosphere? Choices: - air density - moon phase - time of day - air temperature A:
air temperature
(Question)
Answer the following question given this paragraph: Unlike corals, jellyfish spend most of their lives as medusae. They live virtually everywhere in the ocean. They are typically carnivores. They prey on zooplankton, other invertebrates, and the eggs and larvae of fish. Q: Unlike corals, jellyfish spend most of their lives as what? Choices: - infants - pupae - cercariae - medusae A:
(Answer)
medusae
Ques: Answer the following question given this paragraph: A combustion engine is a complex machine that burns fuel to produce thermal energy and then uses the energy to do work. In a car, the engine does the work of providing kinetic energy that turns the wheels. The combustion engine in a car is a type of engine called an internal combustion engine. (Another type of combustion engine is an external combustion engine. ). Q: What is the name of the type of combustion engine that you would find in a car? Choices: - internal oxide engine - internal vapor engine - internal modern engine - internal combustion engine A:
Ans: internal combustion engine
(Q).
Answer the following question given this paragraph: The sun's energy is converted to chemical energy by a plant. An animal gets energy when it eats the plant. The student gets energy when it eats the animal. The boy's energy is used to pedal the bike. Q: The sun's energy is converted to chemical energy by a what? Choices: - bacterium - mammal - amphibian - plant A:
(A).
plant
Ques:Answer the following question given this paragraph: Types of Receptors Receptors are protein molecules in the target cell or on its surface that bind ligand. There are two types of receptors, internal receptors and cell-surface receptors. Internal receptors Internal receptors, also known as intracellular or cytoplasmic receptors, are found in the cytoplasm of the cell and respond to hydrophobic ligand molecules that are able to travel across the plasma membrane. Once inside the cell, many of these molecules bind to proteins that act as regulators of mRNA synthesis (transcription) to mediate gene expression. Gene expression is the cellular process of transforming the information in a cell's DNA into a sequence of amino acids, which ultimately forms a protein. When the ligand binds to the internal receptor, a conformational change is triggered that exposes a DNA-binding site on the protein. The ligand-receptor complex moves into the nucleus, then binds to specific regulatory regions of the chromosomal DNA and promotes the initiation of transcription (Figure 9.4). Transcription is the process of copying the information in a cells DNA into a special form of RNA called messenger RNA (mRNA); the cell uses information in the mRNA (which moves out into the cytoplasm and associates with ribosomes) to link specific amino acids in the correct order, producing a protein. Internal receptors can directly influence gene expression without having to pass the signal on to other receptors or messengers. Q: What type of receptors, also known as intracellular or cytoplasmic receptors, are found in the cytoplasm of the cell and respond to hydrophobic ligand molecules that are able to travel across the plasma membrane? Choices: - external - essential - mechanical - internal A:

Ans:internal
Ques:Answer the following question given this paragraph: Q: How many protons do all atoms of a particular element have in their nuclei? Choices: - varying number - three - zero - same number A:

Ans:
same number