Answer the following question given this paragraph: Q: What term is used to describe the process by which organisms give rise to offspring? Choices: - variation - photosynthesis - osmosis - reproduction A:
reproduction
(Question)
Answer the following question given this paragraph: Q: Most plants grow continuously, except for what periods? Choices: - abnormal - mutant - winter - dormant A:
(Answer)
dormant
Ques: Answer the following question given this paragraph: Right Atrium The right atrium serves as the receiving chamber for blood returning to the heart from the systemic circulation. The two major systemic veins, the superior and inferior venae cavae, and the large coronary vein called the coronary sinus that drains the heart myocardium empty into the right atrium. The superior vena cava drains blood from regions superior to the diaphragm: the head, neck, upper limbs, and the thoracic region. It empties into the superior and posterior portions of the right atrium. The inferior vena cava drains blood from areas inferior to the diaphragm: the lower limbs and abdominopelvic region of the body. It, too, empties into the posterior portion of the atria, but inferior to the opening of the superior vena cava. Immediately superior and slightly medial to the opening of the inferior vena cava on the posterior surface of the atrium is the opening of the coronary sinus. This thin-walled vessel drains most of the coronary veins that return systemic blood from the heart. The majority of the internal heart structures discussed in this and subsequent sections are illustrated in Figure 19.9. While the bulk of the internal surface of the right atrium is smooth, the depression of the fossa ovalis is medial, and the anterior surface demonstrates prominent ridges of muscle called the pectinate muscles. The right auricle also has pectinate muscles. The left atrium does not have pectinate muscles except in the auricle. The atria receive venous blood on a nearly continuous basis, preventing venous flow from stopping while the ventricles are contracting. While most ventricular filling occurs while the atria are relaxed, they do demonstrate a contractile phase and actively pump blood into the ventricles just prior to ventricular contraction. The opening between the atrium and ventricle is guarded by the tricuspid valve. Q: What guards the opening between the right atrium and the right ventricle? Choices: - superior vena cava - brachiocephalic trunk - aorta - tricuspid valve A:
Ans: tricuspid valve
(Q).
Answer the following question given this paragraph: Figure 12.27 The Synapse The synapse is a connection between a neuron and its target cell (which is not necessarily a neuron). The presynaptic element is the synaptic end bulb of the axon where Ca2+ enters the bulb to cause vesicle fusion and neurotransmitter release. The neurotransmitter diffuses across the synaptic cleft to bind to its receptor. The neurotransmitter is cleared from the synapse either by enzymatic degradation, neuronal reuptake, or glial reuptake. Q: What is the term for a connection between a neuron and its target cell? Choices: - dendrite - axon - impulse - synapse A:
(A).
synapse
Ques:Answer the following question given this paragraph: Penguins are flightless birds that are strong swimmers and spend much of their time in the water. Q: What are flightless birds that are strong swimmers and spend much of their time in the water? Choices: - Emus - Ostriches - Cassowaries - penguins A:

Ans:penguins
Answer the following question given this paragraph: The two members of a given pair of chromosomes are called homologous chromosomes . We get one of each homologous pair, or 23 chromosomes, from our father. We get the other one of each pair, or 23 chromosomes, from our mother. A gamete must have the haploid number of chromosomes. That way, when two gametes unite, the zygote will have the diploid number. How are haploid cells produced? The answer is meiosis. Q: The two members of a given pair of chromosomes are called what? Choices: - tissue chromosomes - divergant chromosomes - isolated chromosomes - homologous chromosomes A:
homologous chromosomes