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Questions (2)
The genetic engineering of crops is a controversial and debated issue in the media and press. Which of the following would be an
44 answers
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Anita can clean a typical pool in 8 hours. Chao can clean a typical pool in 6 hours. How long should it take Anita and Chao
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Answers (30)
If there were no decomposers, which of the following would most likely happen? * Some plants might die due to a shortage of important nutrients. The amount of dead plant and animal matter would decrease. Plants and animals would remain living for a longer
A potato plant can reproduce asexually so that one potato can often give rise to many other potatoes. Strawberry plants can reproduce sexually.A potato plant puts a large amount of its energy into growing a tuber, which is the part that humans eat. The
Many sponges can reproduce asexually. Ladybugs, on the other hand, reproduce sexually. When small bits of a sponge are broken off—often by currents or by predators—they can float to new regions and regenerate as new sponges. A ladybug must find a mate
Small differences between parents and offspring accumulate over time. This process * prevents parents from being able to care for their offspring. makes it impossible for species to adapt to changes in their environment. results in only one type of
Over time, the climate of a region becomes cooler. How will this most likely affect the species living in that region? * Some species that already have or that develop cold-weather adaptations through natural selection will survive, while species without
Coyotes primarily feed on small mammals, such as rabbits, squirrels, birds, and mice. Many of these prey try to escape from coyotes by burrowing into the ground. Which of the following characteristics is most likely to be naturally selected to increase a
What genetic factor is most likely to result in the extinction of an entire species? * a lack of genetic variety in the population a genetic defect in a few members of the population a genetic resistance against many diseases a lot of genetic variety in a
Cheetahs are one example of a population that has very limited genetic variation.Which of the following groups of animals are most likely to have a limited variety in the genetics of their population? * animals that live on more than one continent animals
There are approximately 200 species of mice that live all over the world. Deer mice are a particular species of mice that prefer to live in forests, prairies, and fields. It has been observed that deer mice that live in trees tend to have longer tails
Diagram 1 shows the fossilized remains of the lower portion of a camel's leg. Each subsequent diagram shows the same portion of a camel's leg, but the diagrams are from progressively later time periods. Diagram 4 shows the most recent fossil. These
Evolution is a * theory because it is an explanation that is supported by extensive observations, experimentation, and reasoning. prediction because it makes an educated guess about events that will occur in the future variable because it is a factor that
Which of the following is an example of natural selection? * Pesticides are sprayed in a field, resulting in an increase in crop growth and a decrease in insect population. Cricket frogs prefer to sleep during the day, while red-eyed tree frogs prefer to
_______ provide evidence that living things evolved from earlier species. * Historical fictions Religions Fossils Videos of dinosaurs
Sexual reproduction produces offspring that are genetically _______ to the parents. * identical unrelated similar opposite
Which of the following is a method of reproduction that generally occurs very rapidly? * hybridizing sexual asexual germination
Which of the following is true about genes? * Genes are responsible for all the traits of an organism. In humans, genes are passed to an offspring from two parents. Genes are made up of smaller molecules known as chromosomes. The genes of a particular
An organism that contains two different alleles for a trait is said to be _______ for that trait. * recessive heterozygous dominant homozygous
A widow's peak is a V-shaped area of the hairline in the center of the forehead. The allele for having a widow's peak is dominant to the allele for not having a widow's peak.If two parents do not have widow's peaks, what is the probability that their child
Both of Tim's parents have brown eyes, but Tim has blue eyes. How is this possible? * The characteristic (blue eyes) is carried in a recessive gene. This characteristic (blue eyes) must be carried in the dominant gene. Eye color is not a genetic trait. all
Which of the following is true of a parasitic relationship? * The parasite benefits, and the host is harmed; however, the host is not generally killed. The parasite benefits, and the host is killed. The parasite benefits for a time; however, both the
The Canadian lynx is a large wild cat that lives in the cold regions of Canada. The snowshoe hare is the main prey species that is hunted by the Canadian lynx. The snowshoe hare eats grass, fern, and leaves.If the population of Canadian lynx were to
The Canadian lynx is a large wild cat that lives in the cold regions of Canada. The snowshoe hare is the main prey species that is hunted by the Canadian lynx. The snowshoe hare eats grass, fern, and leaves.If the population of Canadian lynx were to
Many animals, including the brittle star and snapping shrimp, make their homes inside sea sponges. Here, the animals not only find safe shelter, but also have a constant flow of well-oxygenated water, and may even eat the substance produced by the sponges.
Relationships between organisms may be beneficial or detrimental. Which of the following examples shows a relationship in which both organisms benefit? * A tick attaches itself to the skin of a dog and takes a blood meal. A female black widow spider
Some people have attached ear lobes and some people have free ear lobes. The differences in these traits are caused by * Captionless Image differences in environment. differences in personality. differences in diet. differences in genes.
Thank you bot
TYSM!!! HAVE A GOOD DAY BOTTTT
thanks bot a couple more questions The time t required to drive a certain distnace varies inversely with the speed, r, if it takes 7 hours the distance at 55 miles per hour how long will it take to drive the same distance at 65 miles per hour
that isnt the full answer its this one 1/6-x; where x=0,6 or 1/6-x; where x=6
simplify x/6x-x^2
