Answer the following question given this paragraph: Clubmosses are so named because they can look similar to mosses ( Figure below ). Clubmosses are not true mosses, though, because they have vascular tissue. The "club" part of the name comes from club-like clusters of sporangia found on the plants. One type of clubmoss is called the "resurrection plant" because it shrivels and turns brown when it dries out but then quickly turns green when watered again. Q: Clubmosses are not true mosses, though, because they have what? Choices: - smooth tissue - cambrium - hydrothermal tissue - vascular tissue A:
vascular tissue
Answer the following question given this paragraph: A lens that causes the light rays to bend away from its axis is called a diverging lens. Ray tracing is the technique of graphically determining the paths that light rays take. The image in which light rays from one point on the object actually cross at the location of the image and can be projected onto a screen, a piece of film, or the retina of an eye is called a real image. Thin lens equations are. Q: What do you call a lens that causes the light rays to bend away from its axis? Choices: - optical lens - axilens - converging lens - diverging lens A:
diverging lens
Q: Answer the following question given this paragraph: Hormonal Regulation of the Reproductive System Regulation of the reproductive system is a process that requires the action of hormones from the pituitary gland, the adrenal cortex, and the gonads. During puberty in both males and females, the hypothalamus produces gonadotropin-releasing hormone (GnRH), which stimulates the production and release of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) from the anterior pituitary gland. These hormones regulate the gonads (testes in males and ovaries in females) and therefore are called gonadotropins. In both males and females, FSH stimulates gamete production and LH stimulates production of hormones by the gonads. An increase in gonad hormone levels inhibits GnRH production through a negative feedback loop. Regulation of the Male Reproductive System In males, FSH stimulates the maturation of sperm cells. FSH production is inhibited by the hormone inhibin, which is released by the testes. LH stimulates production of the sex hormones ( androgens) by the interstitial cells of the testes and therefore is also called interstitial cell-stimulating hormone. The most widely known androgen in males is testosterone. Testosterone promotes the production of sperm and masculine characteristics. The adrenal cortex also produces small amounts of testosterone precursor, although the role of this additional hormone production is not fully understood. Q: Regulation of the reproductive system is a process that requires the action of hormones from which gland? Choices: - salivary gland - adrenal gland - thyroid gland - pituitary gland A:
A: pituitary gland
Question: Answer the following question given this paragraph: The outer planets are made of hydrogen and helium, so they are called gas giants. Q: The outer planets are made of hydrogen and helium, so they are termed what? Choices: - hydrogen giants - light giants - helium giants - gas giants A:
Answer: gas giants
*Question*
Answer the following question given this paragraph: Feathers help birds fly and also provide insulation and serve other purposes. Birds actually have two basic types of feathers: flight feathers and down feathers. Both are shown in Figure below . Flight feathers are long, stiff, and waterproof. They provide lift and air resistance without adding weight. Down feathers are short and fluffy. They trap air next to a bird's skin for insulation. Q: Birds actually have two basic types of feathers: flight feathers and? Choices: - colorful plumes - landing feathers - shed feathers - down feathers A:
**Answer**
down feathers
(Question)
Answer the following question given this paragraph: Wallace and Darwin both observed similar patterns in other organisms and independently conceived a mechanism to explain how and why such changes could take place. Darwin called this mechanism natural selection. Natural selection, Darwin argued, was an inevitable outcome of three principles that operated in nature. First, the characteristics of organisms are inherited, or passed from parent to offspring. Second, more offspring are produced than are able to survive; in other words, resources for survival and reproduction are limited. The capacity for reproduction in all organisms outstrips the availability of resources to support their numbers. Thus, there is a competition for those resources in each generation. Both Darwin and Wallace's understanding of this principle came from reading an essay by the economist Thomas Malthus, who discussed this principle in relation to human populations. Third, offspring vary among each other in regard to their characteristics and those variations are inherited. Out of these three principles, Darwin and Wallace reasoned that offspring with inherited characteristics that allow them to best compete for limited resources will survive and have more offspring than those individuals with variations that are less able to compete. Because characteristics are inherited, these traits will be better represented in the next generation. This will lead to change in populations over generations in a process that Darwin called "descent with modification. " Papers by Darwin and Wallace (Figure 11.3) presenting the idea of natural selection were read together in 1858 before the Linnaean Society in London. The following year Darwin's book, On the Origin of Species, was published, which outlined in considerable detail his arguments for evolution by natural selection. Q: What did darwin call the evolutionary concept of change in populations over generations? Choices: - formation with modifications - reproduction with modifications - metabolism with modifications - descent with modifications A:
(Answer)
descent with modifications