Answer the following question given this paragraph: John Haslam. The end of a pine tree branch bears the male cones that produce the pollen . CC BY 2.0. Q: The end of a pine tree branch bears the male cones that produce what? Choices: - the ovaries - oxygen - the stigmas - the pollen A:
the pollen
(Question)
Answer the following question given this paragraph: A bowling ball rolls down a lane at a constant velocity. (e) A car accelerates down the road. There is friction between the tires and the road. Q: What does the tires meeting the road cause when a car accelerates? Choices: - erosion - vibration - thrust - friction A:
(Answer)
friction
Ques: Answer the following question given this paragraph: A common sign that labor will be short is the so-called "bloody show. " During pregnancy, a plug of mucus accumulates in the cervical canal, blocking the entrance to the uterus. Approximately 12 days prior to the onset of true labor, this plug loosens and is expelled, along with a small amount of blood. Meanwhile, the posterior pituitary has been boosting its secretion of oxytocin, a hormone that stimulates the contractions of labor. At the same time, the myometrium increases its sensitivity to oxytocin by expressing more receptors for this hormone. As labor nears, oxytocin begins to stimulate stronger, more painful uterine contractions, whichin a positive feedback loopstimulate the secretion of prostaglandins from fetal membranes. Like oxytocin, prostaglandins also enhance uterine contractile strength. The fetal pituitary also secretes oxytocin, which increases prostaglandins even further. Given the importance of oxytocin and prostaglandins to the initiation and maintenance of labor, it is not surprising that, when a pregnancy is not progressing to labor and needs to be induced, a pharmaceutical version of these compounds (called pitocin) is administered by intravenous drip. Finally, stretching of the myometrium and cervix by a full-term fetus in the vertex (head-down) position is regarded as a stimulant to uterine contractions. The sum of these changes initiates the regular contractions known as true labor, which become more powerful and more frequent with time. The pain of labor is attributed to myometrial hypoxia during uterine contractions. Q: Oxytocin, which stimulates the contractions of labor, is a type of what? Choices: - metabolite - inhibitor - steroid - hormone A:
Ans: hormone
(Q).
Answer the following question given this paragraph: Q: Living things that feed on others are generally known as what? Choices: - customers - isolators - producers - consumers A:
(A).
consumers
Ques:Answer the following question given this paragraph: Some mutations have a positive effect on the organism in which they occur. They are called beneficial mutations . They lead to new versions of proteins that help organisms adapt to changes in their environment. Beneficial mutations are essential for evolution to occur. They increase an organism's changes of surviving or reproducing, so they are likely to become more common over time. There are several well-known examples of beneficial mutations. Here are just two:. Q: Mutations which benefit the organism in which they occur are known as? Choices: - extraordinary mutations - helpful mutations - healthy mutations - beneficial mutations A:

Ans:beneficial mutations
Ques: Answer the following question given this paragraph: The challenge of techniques used for proteomic analyses is the difficulty in detecting small quantities of proteins. Although mass spectrometry is good for detecting small amounts of proteins, variations in protein expression in diseased states can be difficult to discern. Proteins are naturally unstable molecules, which makes proteomic analysis much more difficult than genomic analysis. Q: The challenge of techniques used for proteomic analyses is the difficulty in detecting small quantities of what? Choices: - bacteria - acids - particles - proteins A:
Ans:
proteins