Which of the following is NOT a reason why scientists use mice and rats to do experiments. A.they have similar physiology B.they have similar anatomy C.they have similar genetics D.they have similar long lives

Q: Which of the following phenotypes would most likely be the result of aHox gene mutation? a. abnormal…

A: Hox genes, a subset of homeobox genes, are a gathering of related genes that determine areas of the…

Q: Which of the following is an example of negative feedback in animals? A. a mother in labor B.…

A: Answer : Option (C) is correct. - human body at 37 degree Celsius

Q: What is the difference between monozygotic (MZ) and dizygotic (DZ) twins?A. MZ twins develop from…

A: Cell division is the process of division of cell into daughter cell. The cell division can take…

Q: When there is too much glucose in the blood, the pancreas releases insulin to help store away the…

A: Maintaining blood glucose level is an example of  Answer option : A homeostasis

Q: Look at the picture. Which sentence about the structure pictured is correct? A. It brings oxygen…

A: We get oxygen by breathing in fresh air, and we remove carbon dioxide from the body by breathing out…

Q: If a scientist discovers a new monkey in Paraguay, its genome will probably be MOST similar to that…

A: The group of eukaryotic, multicellular, and heterotrophic organisms is classified under the kingdom…

Q: Which of the following is not true about human and ape skeletons?a. Humans have a long, narrow…

A: Humans and apes are primates whose body similarities demonstrated that they have common ancestors.…

Q: A heterodont organism has: A. An absence of molars B. Only canines C.…

A: A heterodont organism is one that has many tooth types in its dentition, each of which has a unique…

Q: Mr. Fede runs an experiment to see if eating fatty foods raises cholesterol He uses two groups of…

A: Fatty acids are the building blocks of fat. Any lengthy chain of hydrocarbon with a single…

Q: The three domains of life a. represent variations of the same basic cell type. b. include two…

A: Life forms are classified into mainly 3 domains. They are 1. Archaea 2. Bacteria 3. Eukarya

Q: Aristotle’s use of the syllogism is best illustrated by which of the following statements? if the…

A: The objective of the question is to identify which of the given statements best illustrates…

Q: According to "Homo naledi – New Questions on Human Evolution ", what are NOT possible explanations…

A: The question is asking us to identify which of the given options are not plausible explanations for…

Q: The skeletons of early fossil Homo and archaic Homo sapiens are marked by very ____ skeletons; this…

A: The cerebral cortex is the part of the brain that consists of the gray matter. The cerebral cortex…

Q: Which of the following is not true about prolactin in female rats? O a. It helps trigger the…

A: The reproductive cycle in females of mammals can be of two types: The estrous cycle and the…

Q: Which of the following is a Monotreme? a. kangaroo b. koala c. bandicoot d. platypus

A: The group of multicellular and heterotrophic organisms belonging to the kingdom Animalia is called…

Q: Which of the following is an important model organism for studying development? a. E.coli O b. D.…

A: Model organisms:         When the process of development is studied in detail the model organisms…

Q: Here is a similar pair of lists, dealing with a later phase of human evolution. Choose the correct…

A: Human evolution is the evolutionary process lying in the history of primates that led to the…

Q: tail docking involves amputating a portion of the tail an animal for a variety of reasons. why is…

A: Tail docking is often performed in pigs to prevent tail biting. Tail biting is a behavior in which…

Q: Living things can be distinguished from nonliving things because they havea. complexity. c. cellular…

A: All living organism are made up of single prokaryotes or more cells eukaryotes. They reproduce to…

Q: A hypothesis in biology is best described as a. a possible explanation of an observation. b. an…

A: Hypothesis biology:                An imaginary or tentative explanation for phenomena, facts, or a…

Q: From the choices below, identify those that are characteristics of all living things. (There may be…

A: It would seem that there would never be a requirement to define what life's purpose is. Let me ask…

Q: Over many generations, humans inherited thumbs to help us grasp onto objects. This trait that…

A: Evolution is the basis for development of complex features from simple features .

Q: 1. Snorkels are long breathing tubes that allow a swimmer to look at things under the water without…

A: Snorkeling is a swimming process through which a person can swim through a swim suit and mask fitted…

Q: Virusesa. have DNA confined in a nucleus.b. are relatively rare compared to living organisms.c. do…

A: Viruses are small and infective particles. These are primarily made up of nucleic acid and proteins.…

Q: Which of the following is a correct way to distinguish reptiles from amphibians? a. Reptiles have…

A: Reptiles are vertebrates whic are cold blooded. They have dry skin that is covered with scales or…

Q: Read following statements A and B and choose the correct option. A: All vertebrates are chordates…

A: The group of multicellular and heterotrophic organisms belonging to the kingdom Animalia is called…

Q: Studies of the infant brain show signs of what scientists call synaptic pruning. What occurs during…

A: One of the most important and complex organs in the human body is the brain. Made up of billions of…

Q: Humans maintaining an average internal temperature of 37 °C is an example of which of the following?

A: The body temperature of human body is regulated by the hypothalamus of the brain and maintains…

Q: Mr. Fede runs an experiment to see if eating fatty foods raises cholesterol He uses two groups of…

A: Fatty acids are the building blocks of fat.. Any lengthy chain of hydrocarbons with a single…

Q: Which of the following answer choices describes the pattern of nutrition used by embryos of birds?…

A: oviparous creatures, birds lay eggs that serve as the protective environment for the development of…

Q: Which of the following is the last step in the Oparin-Haldane Model for the beginning of life?   a.…

A: oparin and haldae suggested the  origin of life on earth , via the abiotic evolution .

Q: To obtain information on the body condition of rodents, you obtain: You can have more than one…

A: The objective of the question is to identify the methods to assess the body condition of rodents.…

Q: Which of the following is not a fundamental characteristic of all of life on earth? a. all life…

A: While many organisms on Earth do indeed require oxygen for their metabolism there are also numerous…

Q: Socrates, Plato, and Aristotle agreed that the only animals to possess rational souls are:…

A: The question is asking about the philosophical views of Socrates, Plato, and Aristotle on which…

Q: According to "Homo naledi – New Questions on Human Evolution ", where was Homo naledi found and how…

A: The question is asking for the location where the Homo naledi, a species of archaic human, was…

Q: Which of these statements is correct?   a Scientists claim that they can prove a hypothesis b…

A: Hypotheses are often defined as proposition or supposition that is based on evidence which is…

Q: A scientist noticed that in acidic pond water some salamanders developed with curved spines. This…

A: Scientific methods in biology is the methods or order wise/ chronological sequence in which data is…

Q: The passage proposes that there are quantitative “laws” of biology that have their basis in physical…

A: Biological law or biological rule is a universal principle which explains the pattern of occurrence…

Q: Which of the following is a difference between Adapoids and Omomyoids?   A. Adapoids had a bony…

A: The question addresses a key differentiation between two groups of early primates, Adapoids and…

Q: Question 4: What percentage or Americans believe that evolution does not occur and that humans and…

A: Correct option is B.Between 20% and 40% According to the Pew Research Center, 62 percent of…

Q: Which of the following statements about Au. afarensis anatomy is most accurate? O a. Au. afarensis…

A: Australipithecus afarensis (Au. afarensis is an extinct species of australopithecine. These species…

Q: Genetics determine exactly who you are, agree or disagree with this statement.

A: Genetics is the scientific study of genes and heredity—how certain characteristics or…

Q: The Miller experiment created   a. life.   b. artificial proteins.   c. DNA.   d. simple molds.…

A: The Miller and Urey experiment proved that the organic molecules needed to sustain life could be…

Q: Assume that you are the nurse at a large elementary school where children frequently come to you…

A: Epistaxis or nose bleeding is the bleeding from the nose.

Q: A mutation in the control region of a Hox gene that is normally expressed in the thorax causes the…

A: Mutations are changes in the sequence of DNA which may or may not affect the phenotype of the…

Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.