Q: Magnetite crystals of different ages and on different continents pointed to different spots. the simplest explanation is that the continents have done what? Read this paragraph and choose the correct option from the provided answers: Magnetite crystals of different ages and on different continents pointed to different spots. The simplest explanation is that the continents have moved. Choices: - reacted - changed - evolved - moved A:
moved

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Q: What two layers is the skin made of? Read this paragraph and choose the correct option from the provided answers: Skin is made up of two layers, the epidermis on top and the dermis below. The tissue below the dermis is called the hypodermis, but it is not part of the skin. Choices: - respiration and dermis - layers and dermis - Blood and dermis - epidermis and dermis A:
(Answer)
epidermis and dermis

Ques: Q: What is defined as a change in the inherited traits of organisms over time? Read this paragraph and choose the correct option from the provided answers: One idea is that evolution happens. Evolution is a change in the inherited traits of organisms over time. Living things have changed as descendants diverged from common ancestors in the past. Choices: - variation - divergence - generation - evolution A:
Ans: evolution

(Q).
Q: What are the insects that suck up the sap from plants? Read this paragraph and choose the correct option from the provided answers: Insects eat in many different ways and they eat a huge range of foods. Around half are plant-eaters, feeding on leaves, roots, seeds, nectar, or wood. Aphids and leafhoppers suck up the sap from plants. Praying mantises are predators, hunting other small creatures, including insects like moths, caterpillars, flies, beetles, and spiders. Insects like mosquitoes and aphids have special mouthparts that help them pierce and suck. Others, like assassin bugs ( Figure below ) and certain species of female mosquitoes, eat other insects. Fleas and lice are parasites, eating the flesh or blood of larger animals without killing them. Choices: - plagues and leafhoppers - butterflies and leafhoppers - roaches and leafhoppers - aphids and leafhoppers A:
(A).
aphids and leafhoppers

Ques:Q: What resource is considered nonrewable for human purposes, because it takes so long to form and is depleted by farming and other activities? Read this paragraph and choose the correct option from the provided answers: Although renewable, soil takes a very long to formup to hundreds of millions of years. So, for human purposes, soil is a nonrenewable resource. It is also constantly depleted of nutrients through careless use and eroded by wind and water. For example, misuse of soil caused a huge amount of it to simply blow away in the 1930s during the Dust Bowl (see Figure below ). Soil must be used wisely to preserve it for the future. Conservation practices include contour plowing and terracing. Both reduce soil erosion. Soil also must be protected from toxic wastes. Choices: - water - acid - sunshine - soil A:

Ans:soil

Q: What process determines the dna sequence of an entire genome? Read this paragraph and choose the correct option from the provided answers: 17.3 | Whole-Genome Sequencing By the end of this section, you will be able to: Describe three types of sequencing Define whole-genome sequencing Although there have been significant advances in the medical sciences in recent years, doctors are still confounded by some diseases, and they are using whole-genome sequencing to get to the bottom of the problem. Whole-genome sequencing is a process that determines the DNA sequence of an entire genome. Whole-genome sequencing is a brute-force approach to problem solving when there is a genetic basis at the core of a disease. Several laboratories now provide services to sequence, analyze, and interpret entire genomes. For example, whole-exome sequencing is a lower-cost alternative to whole genome sequencing. In exome sequencing, only the coding, exon-producing regions of the DNA are sequenced. In 2010, whole-exome sequencing was used to save a young boy whose intestines had multiple mysterious abscesses. The child had several colon operations with no relief. Finally, whole-exome sequencing was performed, which revealed a defect in a pathway that controls apoptosis (programmed cell death). A bone-marrow transplant was used to overcome this genetic disorder, leading to a cure for the boy. He was the first person to be successfully treated based on a diagnosis made by whole-exome sequencing. Today, human genome sequencing is more readily available and can be completed in a day or two for about $1000. Choices: - dna replication - chromosomal counting - genetic factorization - whole-genome sequencing A:
whole-genome sequencing