Answer the following question given this paragraph: Unsaturated hydrocarbons that contain at least one double bond are called alkenes . The name of a specific alkene always ends in ene , with a prefix indicating the number of carbon atoms. Figure below shows the structural formula for the smallest alkene. It has just two carbon atoms and is named ethene. Ethene is produced by most fruits and vegetables. It speeds up ripening and also rotting. Figure below shows the effects of ethene on bananas. Q: What is the name for unsaturated hydrocarbons that contain at least one double bond? Choices: - lipids - acids - enzymes - alkenes A:
alkenes
(Question)
Answer the following question given this paragraph: 22.2.1 Lytic Cycle 1. Attachment: The virus binds to specific receptors on the host cell. Entry: There are two ways in which a virus can enter cells. Firstly, the virus can inject its nucleic acid into the host cell. Secondly, if a virus is contained in an envelope, the host cell can phagocytosise the entire virus particle into a vacuole. When the virus breaks out of the vacuole, it then releases its nucleic acid into the cell. Replication: The virus's nucleic acid instructs the host cell to replicate the virus's DNA or RNA. Assembly: New virus particles are assembled. Lysis and Release: The virus directs the production of an enzyme which damages the host cell wall, causing the host cell to swell and burst. The newly formed virus particles are now released. Q: What does a virus inject into the host cell? Choices: - cells acid - Acetic acid - proteins acid - nucleic acid A:
(Answer)
nucleic acid
Ques: Answer the following question given this paragraph: called an alkaline battery when adapted to operate under alkaline conditions. Button batteries have a high output-to-mass ratio; lithiumiodine batteries consist of a solid electrolyte; the nickel cadmium (NiCad) battery is rechargeable; and the leadacid battery, which is also rechargeable, does not require the electrodes to be in separate compartments. A fuel cell requires an external supply of reactants as the products of the reaction are continuously removed. In a fuel cell, energy is not stored; electrical energy is provided by a chemical reaction. Q: In a fuel cell, energy is not stored; electrical energy is provided by what? Choices: - fusion reaction - carbon reaction - consumption reaction - chemical reaction A:
Ans: chemical reaction
(Q).
Answer the following question given this paragraph: Like salt water in the ocean, many solutions are normally in the liquid state. However, matter in any state can form a solution. An alloy, which is a mixture of a metal with one or more other substances, is a solid solution at room temperature. For example, the alloy bronze is a solution of copper and tin. Matter in the gaseous state can also form solutions. Q: An alloy is a mixture of what with one or more other substances? Choices: - acid - water - protein - metal A:
(A).
metal
Ques:Answer the following question given this paragraph: Sahara Desert in northern Africa (left). Rainforest in northeastern Australia (right). Two very different biomes are pictured here. A biome is a group of similar ecosystems with the same general abiotic factors and primary producers. Both are found at roughly the same distance from the equator. Q: What is a group of similar ecosystems with the same general abiotic factors and primary producers called? Choices: - ecological environment - ecoculture - population - biome A:

Ans:biome
Answer the following question given this paragraph: The haploid life cycle ( Figure below ) is the simplest life cycle. It is found in many single-celled organisms. Organisms with a haploid life cycle spend the majority of their lives as haploid gametes. When the haploid gametes fuse, they form a diploid zygote. It quickly undergoes meiosis to produce more haploid gametes that repeat the life cycle. Q: What is the simplest life cycle? Choices: - diploid life cycle - binary life cycle - metamorphic cycle - haploid life cycle A:
haploid life cycle