Answer the following question given this paragraph: Nonrandom Mating If individuals nonrandomly mate with their peers, the result can be a changing population. There are many reasons nonrandom mating occurs. One reason is simple mate choice; for example, female peahens may prefer peacocks with bigger, brighter tails. Traits that lead to more matings for an individual become selected for by natural selection. One common form of mate choice, called assortative mating, is an individual's preference to mate with partners who are phenotypically similar to themselves. Another cause of nonrandom mating is physical location. This is especially true in large populations spread over large geographic distances where not all individuals will have equal access to one another. Some might be miles apart through woods or over rough terrain, while others might live immediately nearby. Q: One common form of mate choice, called assortative mating, is an individual's preference to mate with partners who are what? Choices: - close to themselves - different from themselves - far away from - similar to themselves A:
similar to themselves
(Question)
Answer the following question given this paragraph: The strength of bases is measured on a scale called the pH scale, which ranges from 0 to 14. On this scale, a pH value of 7 indicates a neutral solution, and a pH value greater than 7 indicates a basic solution. The higher the pH value is, the stronger the base. The strongest bases, such as drain cleaner, have a pH value close to 14. Q: The strength of bases is measured on what scale? Choices: - acid test - litmus test - pneumatic scale - ph scale A:
(Answer)
ph scale
Ques: Answer the following question given this paragraph: The concentration of an acid or base can be determined by titration. Q: Titration is a method to determine what in acids or bases? Choices: - alkalinity - maturation - glucose - concentration A:
Ans: concentration
(Q).
Answer the following question given this paragraph: Q: What kind of enzyme is phosphofructokinase? Choices: - covalent - intracellular - orthosteric - allosteric A:
(A).
allosteric
Ques:Answer the following question given this paragraph: An example of a mutualistic relationship is between herbivores (plant-eaters) and the bacteria that live in their intestines. The bacteria get a place to live. Meanwhile, the bacteria help the herbivore digest food. Both species benefit, so this is a mutualistic relationship. The clownfish and the sea anemones also have a mutualistic relationship. The clownfish protects the anemone from anemone-eating fish, and the stinging tentacles of the anemone protect the clownfish from predators ( Figure below ). Another example of this type of symbiotic relationship is the relationship between the plover bird and the African crocodile. The tiny blackbird acts as a toothpick for the fierce crocodile, and helps by removing tiny morsels of food that are stuck between the crocodile's teeth. These food remains are the source of food for the bird. Another example is between the ostrich and the zebra. The ostrich always moves with the herd of zebras since it has a poor sense of hearing and smell, whereas the zebra has very sharp senses. The ostrich has a keen sense of sight, which the zebra lacks. Hence, these two species depend on each other to warn one another of any nearby imposing dangers. Q: Herbivores and the bacteria that live in their intestines demonstrate a two-way beneficial relationship called what? Choices: - parasitism - pragmatism - syncretism - mutualism A:

Ans:mutualism
Ques:Answer the following question given this paragraph: The rate of evolution depends on how many of an organism's genes have changed over a period of time. Evolution is usually so gradual that we do not see the change for many, many generations. The rate of evolution also depends on the generation time of a particular species. Q: The rate of what process depends on how many of an organism's genes have changed over a period of time and on the generation time of a particular species? Choices: - digestion - respiration - photosynthesis - evolution A:

Ans:
evolution