Answer the following question given this paragraph: The most basic division of living plants is between nonvascular and vascular plants. Vascular plants are further divided into seedless and seed plants. Seed plants called gymnosperms produce seeds in cones. Seed plants called angiosperms produce seeds in the ovaries of flowers. Q: What are the two divisions of vascular plants? Choices: - root and seed - seedless and semi-seeded - aquatic and terrestrial - seedless and seed A:
seedless and seed
Answer the following question given this paragraph: Maturation of the ovum. Notice only 1 mature ovum, or egg, forms during meiosis from the primary oocyte. Three polar bodies may form during oogenesis. These polar bodies will not form mature gametes. Conversely, four haploid spermatids form during meiosis from the primary spermatocyte. Q: Four haploid spermatids form during meiosis from what? Choices: - the zygote - the sister chromatic - the ova - the primary spermatocyte A:
the primary spermatocyte
Q: Answer the following question given this paragraph: Rickets is softening of the bones in children that occurs because bones do not have enough calcium. Rickets can lead to fractures and bowing of the leg bones, which is illustrated in the Figure below . Q: Lack of what mineral causes rickets? Choices: - zinc - potassium - magnesium - calcium A:
A: calcium
Question: Answer the following question given this paragraph: Gene expression is regulated primarily at the transcriptional level. Q: Gene expression is regulated primarily at the what level? Choices: - manufacturing - translational - binding - transcriptional A:
Answer: transcriptional
*Question*
Answer the following question given this paragraph: Q: What is generated when a heart ventricle contracts? Choices: - vein pressure - blood force - artery pressure - blood pressure A:
**Answer**
blood pressure
*Question*
Answer the following question given this paragraph: Pure elements with a high metallic character, meaning those that have chemical properties most similar to properties of metals, are generally very reactive. Metals tend to lose electrons in chemical reactions, as indicated by their low ionization energies. Within a compound, metal atoms have a relatively low attraction to shared electrons, as indicated by their low electronegativity values. By following the trend summary in Figure below , you can see that the most reactive metals would reside in the lower left portion of the periodic table. The most reactive metal that occurs naturally in reasonable quantities is cesium, which is always found in nature as a compound, never as a free element. It reacts explosively with water and will ignite spontaneously in air. Francium is below cesium in the alkali metal group, but it is so rare that many of its properties have never even been observed. Q: Exemplified by cesium, which ignites spontaneously in air, pure elements with a high metallic character tend to be very what? Choices: - radiactive - inactive - proactive - reactive A:
**Answer**
reactive