Answer the following question given this paragraph: Nitrogen Fixation: Root and Bacteria Interactions Nitrogen is an important macronutrient because it is part of nucleic acids and proteins. Atmospheric nitrogen, which is the diatomic molecule N2, or dinitrogen, is the largest pool of nitrogen in terrestrial ecosystems. However, plants cannot take advantage of this nitrogen because they do not have the necessary enzymes to convert it into biologically useful forms. However, nitrogen can be "fixed," which means that it can be converted to ammonia (NH3) through biological, physical, or chemical processes. As you have learned, biological nitrogen fixation (BNF) is the conversion of atmospheric nitrogen (N2) into ammonia (NH3), exclusively carried out by prokaryotes such as soil bacteria or cyanobacteria. Biological processes contribute 65 percent of the nitrogen used in agriculture. The following equation represents the process:. Q: Nitrogen is an important macronutrient because it is part of nucleic acids and proteins. atmospheric nitrogen, which is the diatomic molecule n2, or dinitrogen, is the largest pool of nitrogen in these? Choices: - gas planets - desert biomes - aquatic ecosytems - terrestrial ecosystems A:
terrestrial ecosystems
Answer the following question given this paragraph: The vagina is a cylinder-shaped organ that opens to the outside of the body. The other end joins with the uterus. Sperm deposited in the vagina swim up through the cervix, into the uterus, and from there into a fallopian tube. During birth, a baby passes from the uterus through the vagina to leave the body. Q: During birth, a baby passes from the uterus through what organ to leave the body? Choices: - Ovary - the urethra - Esophagus - the vagina A:
the vagina
Q: Answer the following question given this paragraph: Blood enters the kidney through the renal artery , which branches into capillaries. When blood passes through capillaries of the glomerulus of a nephron, blood pressure forces some of the water and dissolved substances in the blood to cross the capillary walls into Bowman's capsule . Q: Blood enters the kidney through the which artery? Choices: - cardiac artery - vas deferens - jugular - renal artery A:
A: renal artery
Question: Answer the following question given this paragraph: Static friction acts on objects when they are resting on a surface. For example, if you are walking on a sidewalk, there is static friction between your shoes and the concrete each time you put down your foot (see Figure below ). Without this static friction, your feet would slip out from under you, making it difficult to walk. Static friction also allows you to sit in a chair without sliding to the floor. Can you think of other examples of static friction?. Q: When you are walking on a sidewalk, what occurs between your shoes and the concrete each time you put down your foot? Choices: - movement - progress - grip - static friction A:
Answer: static friction
*Question*
Answer the following question given this paragraph: The male reproductive system forms before birth but does not become capable of reproduction until it matures during puberty. Puberty lasts from about ages 12 to 18 years and is controlled by hormones. Q: What stage in human males lasts from about ages 12 to 18 years and is controlled by hormones? Choices: - childhood - adolescence - maturity - puberty A:
**Answer**
puberty
Q: Answer the following question given this paragraph: Figure 15.12 Trypanosoma brucei is the causative agent of sleeping sickness in humans. The mRNAs of this pathogen must be modified by the addition of nucleotides before protein synthesis can occur. (credit: modification of work by Torsten Ochsenreiter). Q: What is the causative agent of sleeping sickness in humans? Choices: - pseudomonas asplenii - escherichia coli - bacillus aerophilus - trypanosoma brucei A:
A: trypanosoma brucei