What does it mean to say that a characteristic of an organism is heritable?
what does it mean to say that a characteristic of an organisms is heritable? the characteristic can be passed on to offspring.
Is a system of naming and classifying organisms based on shared characteristics?
In biology, taxonomy (from Ancient Greek τάξις (taxis) 'arrangement', and -νομία (-nomia) 'method') is the scientific study of naming, defining (circumscribing) and classifying groups of biological organisms based on shared characteristics.
How did Anton van Leeuwenhoek make an important contribution to the development of the cell theory?
Anton Van Leeuwenhoek's single most important discovery was the existence of single-cell organisms. While using a microscope to examine pond water in 1674, he observed dozens of protists, which he called 'animalcules,' as well as spirogyra, or green algae.
What does it mean to say that experimental conditions are controlled quizlet?
What does it mean to say that experimental conditions are controlled? All physical conditions except for one are identical for all groups tested. You just studied 9 terms! 1/9.
Why is it very important for a gene to be heritable?
Heritability can give initial clues as to the relative influences of “nature” (genetics) and “nurture” (environment) on complex traits, and it can give researchers a place to start teasing apart the factors that influence these traits.
What is heredity What are the hereditary characteristics how it transmit one generation to other explain with example?
Heredity, also called inheritance or biological inheritance, is the passing on of traits from parents to their offspring; either through asexual reproduction or sexual reproduction, the offspring cells or organisms acquire the genetic information of their parents.
How did Linnaeus classify organisms?
In Systema Naturae, Linnaeus classified nature into a hierarchy. He proposed that there were three broad groups, called kingdoms, into which the whole of nature could fit. These kingdoms were animals, plants, and minerals. He divided each of these kingdoms into classes.
What is the Linnaean system of classification based on?
The Linnaean system is based on similarities in obvious physical traits. It consists of a hierarchy of taxa, from the kingdom to the species. Each species is given a unique two-word Latin name. The recently added domain is a larger and more inclusive taxon than the kingdom.
What is the major contribution of Anton van Leeuwenhoek in the development of microbiology?
Leeuwenhoek is universally acknowledged as the father of microbiology. He discovered both protists and bacteria (1). More than being the first to see this unimagined world of 'animalcules', he was the first even to think of looking—certainly, the first with the power to see.
What contributions did van Leeuwenhoek Hooke Schleiden Schwann and Virchow make to the development of the cell theory?
He realized that living cells produce new cells through division. Based on this realization, Virchow proposed that living cells arise only from other living cells. The ideas of all three scientists — Schwann, Schleiden, and Virchow — led to cell theory, which is one of the fundamental theories unifying all of biology.
What does it mean to say that the experimental conditions are controlled?
When possible, scientists test their hypotheses using controlled experiments. A controlled experiment is a scientific test done under controlled conditions, meaning that just one (or a few) factors are changed at a time, while all others are kept constant.
How does a scientific theory differ from a scientific hypothesis?
In scientific reasoning, a hypothesis is constructed before any applicable research has been done. A theory, on the other hand, is supported by evidence: it's a principle formed as an attempt to explain things that have already been substantiated by data.
Can a child have a different blood type than both parents?
The blood group of offspring can be different from their parents. There can be many permutations and combinations according to the genotype of the parents. E.g. If both parents have AB blood type, there are chances of offspring having A, B or AB blood type.
Why is heritability important for natural selection?
This affects the rate of evolution and can be used to predict the evolutionary trajectory of a population. Higher heritability means the trait evolves faster; fewer generations are required for the trait to increase to the same degree as a trait with lower heritability.
How does DNA help with the transfer of genetic material from parents to offspring?
The DNA and proteins called histones make up the the chromosomes. When the sperm fertilizes the egg, the chromosomes from each sex cell units to form the zygote, which is the first cell of the offspring.
Which theory of inheritance states that offspring have a mix of characteristics of their parents?
Blending Theory of Inheritance Blending Theory of Inheritance This is the theory that offspring have a blend, or mix, of the characteristics of their parents. Mendel noticed plants in his own garden that weren't a blend of the parents. For example, a tall plant and a short plant had offspring that were either tall or short but not medium in height.
What is the Linnaean system of classification and why is it important?
The Linnaean system is important because it led to the use of binomial nomenclature to identify each species. Once the system was adopted, scientists could communicate without the use of misleading common names. A human being became a member of Homo sapiens, no matter what language a person spoke.
What was Carl Linnaeus theory?
He believed that species were immutable. Even though Linnaeus believed in immutability, he did believe that the creation of new species was possible, but that it is limited. (?) Linnaeus was the father of taxonomic and gave us the binomial system of naming and classifying organisms.
What is the importance of Linnaean system of classification?
The Linnaean system is important because it led to the use of binomial nomenclature to identify each species. Once the system was adopted, scientists could communicate without the use of misleading common names. A human being became a member of Homo sapiens, no matter what language a person spoke.
Which statement describes the Linnaean system of biological classification?
Which statement describes the Linnaean system of biological classification? It was based on behavioral and morphological similarities and differences among organisms.
Which option accurately describes Anton van Leeuwenhoek’s impact on the scientific community during the scientific Revolution?
Which option accurately describes Anton van Leeuwenhoek's impact on the scientific community during the Scientific Revolution? He patented one of the first steam engines, improving travel and commerce in the United States.
What did Leeuwenhoek discovered about cells?
Anton van Leeuwenhoek first discovered free-living algae Spirogyra cells in water in the pond in 1674 with the improved microscope. The living cells were first discovered by Antony Van Leeuwenhoek. He observed living cells and called them 'animalcules'. Some small 'animalcules' are now called bacteria.
What did Schleiden and Schwann contribute to the cell theory?
Matthias Jacob Schleiden was a German botanist who, with Theodor Schwann, cofounded the cell theory. In 1838 Schleiden defined the cell as the basic unit of plant structure, and a year later Schwann defined the cell as the basic unit of animal structure.
What did Leeuwenhoek’s observations reveal?
What did Leeuwenhoek's observations reveal? That there were a variety of one-celled organisms. He noted many of them whirled, hopped or shot through water like fast fish. He called the moving organisms animalcules meaning little animals.
What is the meaning of independent and dependent variables?
Researchers often manipulate or measure independent and dependent variables in studies to test cause-and-effect relationships. The independent variable is the cause. Its value is independent of other variables in your study. The dependent variable is the effect. Its value depends on changes in the independent variable.
What is the main purpose of controlled variables in an experiment?
Control variables enhance the internal validity of a study by limiting the influence of confounding and other extraneous variables. This helps you establish a correlational or causal relationship between your variables of interest.
How new technology and experimental methods can lead to changes in theories?
The development of a new experimental method is most likely to change a theory if it makes it possible to: analyze samples when they are frozen. perform the experiment in a different lab. obtain and analyze results more quickly.
Why is scientific inquiry a process with many paths not a rigid sequence of steps?
Not rigid because at any stage you can go back an redo a step. For example, you can ask a new question or change your hypothesis and retest.
CAN A and O+ have a baby?
Could you please explain if it is possible for a father who has O positive blood and a mother with A positive blood to have a baby with O negative blood? I am a little confused and have been trying to research the answer. I would appreciate if you are able to assist. Yes this is definitely possible.
Is a rare blood?
Rare blood types The American Red Cross define a blood type as “rare” when it occurs in fewer than 1 in 1,000 people. Rhnull is the rarest of these. Having a rare blood type can make it difficult or even impossible to get a blood transfusion or organ transplant. It can also cause other health issues.