Answer the following question given this paragraph: Omnivores are heterotrophs that consume both plants and animals. They include crows and human beings. The grizzly bears pictured in Figure below are also omnivores. Q: What do omnivores eat? Choices: - only animals - only seafood - only plants - plants & animals A:
plants & animals
(Question)
Answer the following question given this paragraph: Sexual reproduction occurs in a cycle. Diploid parents produce haploid gametes that unite and develop into diploid adults, which repeat the cycle. This series of life stages and events that a sexually reproducing organism goes through is called its life cycle . Sexually reproducing organisms can have different types of life cycles. Three are represented in Figure below and described following sections. Q: What is the term for the series of life stages and events that a sexually reproducing organism goes through? Choices: - society cycle - existence - age - life cycle A:
(Answer)
life cycle
Ques: Answer the following question given this paragraph: Muscles cannot contract on their own. They need a stimulus from a nerve cell to "tell" them to contract. Let's say you decide to raise your hand in class. Your brain sends electrical messages to nerve cells, called motor neurons, in your arm and shoulder. The motor neurons, in turn, stimulate muscle fibers in your arm and shoulder to contract, causing your arm to rise. Involuntary contractions of cardiac and smooth muscles are also controlled by nerves. Q: What do muscles need to contract? Choices: - stress - tendons - pressures - stimulus A:
Ans: stimulus
(Q).
Answer the following question given this paragraph: The basic unit of matter is an atom ( Figure below ). At the center of an atom is its nucleus . Protons are positively charged particles in the nucleus. Also in the nucleus are neutrons with no electrical charge. Orbiting the nucleus are tiny electrons. Electrons are negatively charged. An atom with the same number of protons and electrons is electrically neutral. If the atom has more or less electrons to protons it is called an ion . An ion will have positive charge if it has more protons than electrons. It will have negative charge if it has more electrons than protons. Q: What is the basic unit of matter? Choices: - nucleus - dark material - neutron - atom A:
(A).
atom
Ques:Answer the following question given this paragraph: Summary Each atom of an element contains the same number of protons, which is theatomic number (Z). Neutral atoms have the same number of electrons and protons. Atoms of an element that contain different numbers of neutrons are calledisotopes. Each isotope of a given element has the same atomic number but a different mass number (A), which is the sum of the numbers of protons and neutrons. The relative masses of atoms are reported using the atomic mass unit(amu), which is defined as one-twelfth of the mass of one atom of carbon-12, with 6 protons, 6 neutrons, and 6 electrons. The atomic mass of an element is the weighted average of the masses of the naturally occurring isotopes. When one or more electrons are added to or removed from an atom or molecule, a charged particle called an ion is produced, whose charge is indicated by a superscript after the symbol. Q: What do neutral atoms have the same number of? Choices: - toxins and protons - gases and protons - Measure and electrons - electrons and protons A:

Ans:electrons and protons
Answer the following question given this paragraph: Melting ice and grinding wood into sawdust are examples of physical changes. Q: Melting ice and grinding wood into sawdust are examples of what? Choices: - chemical changes - reversible changes - unpredictable changes - physical changes A:
physical changes