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Science7Q4-BEMS
| Question | Answer |
|---|---|
| Most farmers in the United States use large equipment, such as tractors, for farming. In Africa, most farming is done by hand. Explain one possible reason for this difference. | Farmers in the US have access to more technology |
| What are drawbacks of using pesticides? | It can kill other organisms that are helpful. |
| In science classrooms, students are not allowed to use real blood to do blood typing. Instead, they use kits containing simulated blood. Why are they not allowed to use real blood? | There is a risk of disease transmission. |
| How has the microscope influenced history? | It has helped to cure diseases. |
| How has the automobile influenced history? | It has changed the way people travel. |
| In a bag, there are 8 marbles. There are 4 red, 2 blue, and 2 green marbles. What is the probability of drawing out a red marble? | 1/2 |
| A television commercial made the following claim, “According to Olympic athletes, brand X cereal makes you run faster and jump higher.” What are the reasons that you might question this statement? | The athletes are not in the cereal business. The athletes might have been paid to make this statement. The athletes are not medical experts. |
| How do humans receive energy from algae without actually eating the algae? | Humans eat fish that eat the algae. |
| If a body cell normally has 16 chromosomes, how many chromosomes will the gametes (sex cells) have at the end of meiosis? | 8 |
| In a fertilized egg cell, the amount of genetic information from each parent is | equal |
| A family has 2 boys and 1 girl. What is the probability that their next child will be a girl? | 50% |
| The organelle in plant cells that helps to trap light energy is | Chloroplast |
| How does a human get its energy from grass? | Humans eat cows which eat grass. |
| In _____ light energy is converted into chemical energy in the form of sugar. | Photosynthesis |
| What are the products of photosynthesis? | oxygen and sugar |
| What is one product produced by a cell during cellular respiration? | water |
| How does the production of oxygen help to contribute to an ecosystem? | It allows animals to use the product for respiration. |
| Plants are to producers, as animals are to: | Consumers |
| Green plants are important to animals because the plants produce _______ and give off ______ | food - oxygen |
| What are two factors that determine the amount of calories a person requires | age - activity level |
| What is one reason it is important to monitor the quality of our water supply? | It is important to our health and the health of other organisms |
| If a part of system is removed, what will happen? | The system is unable to do its original job/function. |
| Which is a good example of a system? | a bicycle |
| What obstacle did George Washington Carver have to overcome? | He was born into a family of slaves. |
| What obstacle did Isaac Newton have to overcome? | His mother abandoned him at a young age. |
| What obstacle did Jane Goodall have to overcome? | She had no formal education when she began her research. |
| You have found that black fur in a species of guinea pig is dominant over white fur. Using a “B” to represent the dominant allele; and using a “b” to represent the recessive allele you crossed a homozygous black fur guinea pig with a homozygous white fur | B B b Bb Bb b Bb Bb |
| B B b Bb Bb b Bb Bb What percent of the What percent of the possible offspring will have white coats? | 0% |
| B B b Bb Bb b Bb Bb What percent of the possible offspring will have black coats? | 100% |
| B B b Bb Bb b Bb Bb What is the genotype of the homozygous white fur guinea pig? | bb |
| If a horse has 60 chromosomes in its body cells, how many chromosomes are in its sperm? | 30 |
Created by:
indycreed
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