Ques: Q: What is the change in a species over time? Read this paragraph and choose the correct option from the provided answers: Scientists do the same thing when they classify , or put into categories, living things. Scientists classify organisms not only by their physical features, but also by how closely related they are. Lions and tigers look like each other more than they look like bears, but are lions and tigers related? Evolutionarily speaking, yes. Evolution is the change in a species over time. Lions and tigers both evolved from a common ancestor. So it turns out that the two cats are actually more closely related to each other than to bears. How an organism looks and how it is related to other organisms determines how it is classified. Choices: - variation - phenomenon - transformation - evolution A:
Ans: evolution

Ques: Q: What paired human organs play a vital role in maintaining homeostasis? Read this paragraph and choose the correct option from the provided answers: The kidneys ( Figure below ) are important organs in maintaining homeostasis , the ability of the body to maintain a stable internal environment despite a changing environment. Kidneys perform a number of homeostatic functions. Choices: - lungs - ears - eyes - kidneys A:
Ans: kidneys

Ques: Q: What scientist constructed a tree diagram, separating living organisms into three domains? Read this paragraph and choose the correct option from the provided answers: Figure 1.17 This phylogenetic tree was constructed by microbiologist Carl Woese using data obtained from sequencing ribosomal RNA genes. The tree shows the separation of living organisms into three domains: Bacteria, Archaea, and Eukarya. Bacteria and Archaea are prokaryotes, single-celled organisms lacking intracellular organelles. (credit: Eric Gaba; NASA Astrobiology Institute). Choices: - Gibbs - CT Fletcher - Mendel - carl woese A:
Ans: carl woese

Ques: Q: Specific scents are often associated with what? Read this paragraph and choose the correct option from the provided answers: Specific scents are often associated with our memories of places and events. That's because scents are more novel or specific than shapes or other things you might see. So an odor similar to that of your grandmother's kitchen or pantry might be more quickly associated with your memories of that place than a similar sight, which might be more generalized. Choices: - pheromones - behaviors - instincts - memories A:
Ans:
memories