1. Cell theory was first proposed in 1838. Evidence obtained through additional scientific investigations resulted in the current cell theory. Which statement describes a component of the original cell theory that was removed because of the new scientific knowledge? A. All living things are made of cells. B. All cells come from other preexisting cells. C. Cells form through spontaneous generation. D. Cells are the basic structural and functional units of life. 2. Which invention from the 17th century allowed for the development of modem cell theory? A. X-rays B. computers C. the light microscope D. the scanning electron microscope 3. A plant and an animal are both living things. According to the Cell Theory, what can you conclude about these two very different organisms? A. Plants have cells but animals do not. B. They are both made of one or more cells. C. They both come from the same kind of cell. D. They both come from a non-living organism. The combined observations of Mattias Schleiden, Theodor Schwann and Rudolph Virchow

Q: 3. Identify the following structures: A, Is this an animal cell or plant cell? a.

A: A cell is the basic structural and functional key of life. A cell has multiple organelles that carry…

Q: The cell theory states thata. all living things are composed of cells.b. cells are the smallest…

A: Cells are the structural and functional unit of the living organisms. Group of cells together form…

Q: 1. Which cell would you consider more complicated and why? 2. Does the animal cell have…

A: The living, self-reproducing structural and functional unit of all living organisms is called cell.…

Q: "hen scientists set out to test a hypothesis, it is often most practical to try to prove the…

A: If anyone claims that a scientific hypothesis has been confirmed, you should inquire further. They…

Q: What is meant by the statement Cells come from pre-existing cells? Give processes, theories or…

A: Cell is the unit of life and living systems and is responsible for providing functional, structural…

Q: What are the differences between Plant and Animal Cells?

A: Introduction In this question we will discuss about the differences between plant and animal cells.…

Q: What caused scientists to discover the existence of cells? 2. What would be your Explanation of the…

A: Cells are the basic structural and functional unit of life. They are the building blocks of all…

Q: B = if the second sentence is true and the first is false C = if both sentences are true. D = if…

A: The first sentence - cellulae means six sided and of heptagonal shape... is wrong  Because yes the…

Q: Which of the following is not a principle of the cell theory? a. Every cell arises from another…

A: Cells are the smallest common denominator of life. Some cells are organisms unto themselves; others…

Q: Direction: Do you think the cells of an onion look the same as the ones found in our body? Give two…

A: Cells  The basic fundamental unit of life.

Q: The words in parentheses represent the choices for the blank. Given what you have learned here,…

A: Biological processes are processes that are crucial for all living organism to live and are composed…

Q: Who proposed cell theory? Give its postulates?

A: Any living organisms that are not visible by naked eyes said to be microorganisms, such as bacteria,…

Q: Which of the following statements is NOT part of the cell theory? a. All organisms are composed of…

A: The cell was discovered by Robert Hooke in the year 1665 while observing the cork of plants. In the…

Q: Why do you think Cell theory meets the difintion of a scientific theory

A: Robert Hooke discovered cell after the invention of microscope. Hooke saw box-shaped structures…

Q: 4. The thin structure that surrounds a cell is known as a. a nucleus. b. a cell membrane. c.…

A: The cells are the basic structural and fundamental units of all living organisms. These basic units…

Q: In your own words, discuss how the process of mitosis faithfully distributes exact copies of…

A: Ist question asked by you is a opinion based question and we are not allowed to answer such…

Q: Which statement describes pathology as a concern in cell biology?

A: Option (C) is right answer. All the other options were wrong according to the question because they…

Q: English Scientist Robert Hooke discovered cells from cork and initiated the cell theory O True O…

A: True.

Q: 9. Which of the following statements is not part of the cell theory? all living things are made up…

A: Matthias Schleiden, in the year 1838, a Germanlawyer turned botanist confirmed that despite…

Q: 2. A scientist observes two petri dishes. A colony of bacteria grows in one, and nothing grows in…

A: The invention of the microscope led to the discovery of the cell by Hooke. While looking at cork,…

Q: Discuss the cell theory. What are its importance to the modern biology?

A: Schielden and schwann gave cell theory whuch was then modified by virchow. According to cell theory:…

Q: What part of the cell theory did rudolf virchow propose

A: All living organisms possess life and are made up of basic unit structure called cell. An organism…

Q: 9. The cilia a. are microfilaments b .Are microtubules c. Presents in respiratory cells d. paralysed…

A: Introduction: Cilia are the hair like projections on the outer surface of the epithelial cells.

Q: Draw and label the important parts of a hypothetical cell.

A: Our body is made of tiny cells, which in turn collectively form tissues, those tissues grouped…

Q: What are the advantages if any of the modern cell theory over it predecessor?

A: Spontaneous generation is considered an initial ideology or hypothesis, that states that the living…

Q: Mattias Schleiden and Theodor Schwann studied plant and animal cells under a microscope. Together…

A: Rudolf VirchowIn 1839, Schleiden and Schwann worked together to detail the first two principles of…

Q: Which of the following best describes an observation/experiment from a model organism that has…

A: Model organisms are organisms that can be used as simple reference to study about various organisms.…

Q: THREE (3) POSTULATES of Cell Theory, if a 6-year-old student asks you about this?

A: The cell is the basic unit of life. The tissue is a group of cells that perform specific functions.…

Q: What are the tenets of cell theory? Select all that apply.   A. Every living organism consists of…

A: Cell theory is the scientific theory which is universally accepted Cell theory was formulated by…

Q: B. cell wall, cell membrane, cytoplasm, nucleus C. cell membrane, chloroplast , nucleus, cytoplasm…

A: According to the guidelines 3 MCQs can be answered at a time. please repost the other question…

Q: Which of the following is NOT a principle of the cell theory? Select one: O a. The cell is the basic…

A: Given: The following is not a principle of the cell theory.

Q: 1. As a science student, you're working in the lab using your compound microscope. The room is quite…

A: Note - we are supposed to answer 1 question at a time according to our guidelines.   Introduction…

Q: Cell culture refers to the removal of cells from an animal and their subsequent growth in a…

A: Cell culture is defined as the growth of bacterial colonies in a nutrient medium usually outside…

Q: What are the differences between plant and animal cells ?

A: Plant cells and animal cells are quite similar structurally because both of them are eukaryotic…

Q: Which of the following is not a part of the cell theory? a Cells come from pre-existing cells. b…

A: After the invention of microscope, Robert Hook once observed cork in it and found so many small…

Q: Which statement is not part of the cell theory?

A: Cell theory was given by Schleiden (German botanist)  and Schwann (British zoologist) in 1839.…

Q: 1. What are cell lines? 2. What are 2 applications of cell lines in biomedical research?

A: Cell Lines are the cultures of animal cells that can be propagated repeatedly and even indefinite…

Q: All of the following statements are true regarding the cell theory except O A. All cells arise…

A: When enzyme binds to its substrate, it forms enzyme-substrate complex. The shape of the enzyme upon…

Q: 1. What was cell theory all about ? 2. Why do you think scientist are interested to study cells? 3.…

A: 1. What was cell theory all about? Answer:- The cell theory states that all living things are…

Q: Can you differentiate animal cell and plant cell and state how the cells are different?

A: The cells or organisms can be divided into basically two eukaryotic and prokaryotic cells. The…

Q: What are two major differences between plant and animal cells?

A: Cells are the smallest units of life, and hence are often referred to as the "building blocks of…

Q: 6. Label each of the following situations as one of the characteristics of life. Situation a. a cell…

A: All living organisms have various key functions or characteristics that are sensitivity,…

Q: Each cell in an organism has all of the basic parts. Each has a function that benefits the other…

A: Honeycomb is a large structure consisting of little rooms or compartments within which the honey…

Q: Identify if the Down Syndrome changes the structure of a cell. If so, explain what was changed from…

A: Down syndrome is a chromosomal condition that affects the structure of a cell. Symptoms vary from…

Q: What types of cells would you expect to have high numbers of the following organelles?

A: Cell is the smallest structural and, functional unit of life. It is simple machinery that houses all…

Q: Often, medical researchers use cancer cell lines to study a range of biological processes. Why do…

A: Cancer cells are abnormal cells which have lost the regulation mechanism. In short it can be seen…

Q: 1. How does a nucleus, cytoplasm, and plasmalemma define a cell? What are their importance?

A: A cell is characterized as the functional and structural unit of life. A cell possesses the…

Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.