Answer the following question given this paragraph: The largest, most complex covalent molecules have thousands of atoms. Examples include proteins and carbohydrates, which are compounds in living things. The smallest, simplest covalent compounds have molecules with just two atoms. An example is hydrogen chloride (HCl). It consists of one hydrogen atom and one chlorine atom, as you can see in the Figure below . You can watch an animation of hydrogen chloride forming at the following URL. Q: What type of compound is hydrogen chloride? Choices: - polar - metal - ionic - covalent A:
covalent
(Question)
Answer the following question given this paragraph: In vascular plants, the sporophyte generation is dominant. In seedless vascular plants such as ferns, the sporophyte releases spores from the undersides of leaves. The spores develop into tiny, separate gametophytes, from which the next generation of sporophyte plants grows. Q: In vascular plants, the sporophyte generation is what? Choices: - submissive - evident - fast - dominant A:
(Answer)
dominant
Ques: Answer the following question given this paragraph: Nearly all fish reproduce sexually, and most species have separate sexes. Those without separate sexes avoid self-fertilization by producing sperm and eggs at different times. Each fish typically produces a large number of gametes. In most fish species, fertilization takes place externally. These fish are oviparous. Eggs are laid and embryos develop outside the mother's body. In a minority of fish, including sharks, eggs develop inside the mother's body but without nourishment from the mother. These fish are ovoviviparous. Q: In ovoviviparous fish like shark, what develops inside the mother's body but without nourishment from the mother? Choices: - genes - spores - molecules - eggs A:
Ans: eggs
(Q).
Answer the following question given this paragraph: Substances that are polar experience dipole-dipole interactions. Q: What kind of interactions do polar substances experience? Choices: - monopole-dipole interactions - axial interactions - monopole-monopole interactions - dipole-dipole interactions A:
(A).
dipole-dipole interactions
Ques:Answer the following question given this paragraph: The axon of many neurons has an outer layer called a myelin sheath (see Figure above ). Myelin is a lipid produced by a type of a glial cell known as a Schwann cell. The myelin sheath acts like a layer of insulation, similar to the plastic that encases an electrical cord. Regularly spaced nodes, or gaps, in the myelin sheath allow nerve impulses to skip along the axon very rapidly. Q: What is the outer layer of an axon that acts like a layer of insulation, similar to the plastic that encases an electrical cord? Choices: - lipids sheath - nerve sheath - layer sheath - myelin sheath A:

Ans:myelin sheath
Answer the following question given this paragraph: Populations may show different patterns of growth. The growth pattern depends partly on the conditions under which a population lives. Two common growth patterns are exponential growth and logistic growth. Both are represented in Figure below . Q: What are 2 common growth patterns of population? Choices: - migratory and logistic - exponential and economical - organic and inorganic - exponential and logistic A:
exponential and logistic