Answer:
Answer is option A.
Vestigial features are fully developed and functional in one group of organisms but reduced and function less in a similar group.
Explanation:
- Vestigial structures are anatomical features such as cells, tissues or organs in an organism that are previously functional and performed some important functions in the organism but no longer serve any functions in the current form of the organism and become useless as a result of a large evolutionary change. Examples include the coccyx or the tailbone in humans, the pelvic bone of a snake, wisdom teeth in humans, nipples in human males, the wings of flightless birds such as kiwi, ostrich, etc.
- Homologous features are the features that are similar in different organisms having similar embryonic origin and development and are inherited from a common ancestor that also had that feature. Also, they might have different functions. An example is the presence of four limbs in tetrapods such as crocodiles, birds, etc.
- Analogous features are the features that are superficially similar in different organisms but had separate evolutionary origins i.e., different in origin, but similar in function. An example includes the wings on a fly, a moth, and a bird where the wings were developed independently as adaptations to perform the common function of flying.
- Polygenic features are the traits or features that are controlled by multiple genes that are located on the same or different chromosomes and are also affected by the environment. These features do not follow Mendel’s pattern of inheritance and are represented as a range of continuous variation. Examples of polygenic traits or features include skin color, height, hair color, eye color, etc. For example, there is wide variation in the human skin color (from light to dark) and height (short or tall or somewhere in between).
- Sympatry describes a species or a population that inhabit the same geographic region at the same time. In sympatric speciation, new species are evolved from a surviving ancestral species while both the species inhabit the same place at the same time i.e., in a single population, reproductive isolation occurs without geographic isolation.
An example of something that does not have mass would most likely be air. Because in order for something to have mass, it must take up space and have shape. Anything that you can think of that does <u>not</u> have <u>space or shape</u> does not have mass.
Answer:
Neutrons are sub-atomic particles located in the nucleus of an atom. They have an atomic mass of one unit and have no charge.
Explanation:
<h3><u>
Full Question:</u></h3>
Which of the following departments would be included in a state government's public safety function?
A. Department of Education
B. Department of Emergency Management
C. Department of Environmental Protection
D. Department of Banking and Consumer Finance
<h3><u>
Answer:</u></h3>
The department of Emergency Management should be added to the public safety function by the state government.
Option B
<h3><u>
Explanation:</u></h3>
Public Safety function deals with those departments who are responsible for giving safety to the general citizens and curbing any sort of unexpected events that can disturb the natural environment of the state. Departments like department of police, emergency medicine are among these functions.
The department of emergency management is mainly supported by paramilitary or other trained personnel who are armed and have different tactics to curb the disturbances and nuisance being caused in the locality. It actually helps the normal citizens to live a safe and normal life. So this department should be added to the public safety function of the state.
The answer to this is nucleic acids.
