1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
WINSTONCH [101]
3 years ago
13

_______________, harmful or helpful, is considered to be the source for new alleles and a main contributor to the diversity of l

ife on Earth.
Biology
2 answers:
ololo11 [35]3 years ago
7 0

The right answer is A mutation.

Alteration of the genetic material (DNA or RNA) of a cell or virus that causes a change in certain traits due to the inheritance of this genetic material from generation to generation.

Abnormal modification of the DNA of a gene, either spontaneously during cell division, or under the influence of external agents called mutagens. This gene is modified to be transmitted to the daughter cells. Some mutations have no effect on the cell. Others are the first step in a long process of cancerization.

Rare are the mutations that are beneficial.

kumpel [21]3 years ago
6 0
The answer is mutation.. I hope this helps! :)
You might be interested in
All the following statements about uncontrolled cellular division are true EXCEPT
larisa86 [58]

Answer:

C

Explanation:

You can not control your DNA.

8 0
3 years ago
GgBb _grey fur and black eyes.
gizmo_the_mogwai [7]

Answer No 4:

The possible gametes for a homozygous grey furred and homozygous black eyed rabbit will be GGBB.

Answer No 3:

The possible gametes for a heterozygous grey furred and heterozygous black eyed rabbit will be GgBb.

Answer No 4:

The possible gametes for a heterozygous grey furred and red eyed rabbit will be Ggbb.

Answer No 5:

The possible gametes for a white furred and heterozygous black eyed rabbit will be ggBb.

5 0
2 years ago
A member of the health care team is researching the etiology and pathogenesis of a number of clients who are under his care in a
hram777 [196]

Answer:

The correct answer is B. A client who has increasing serum ammonia levels due to liver cirrhosis

Explanation:

Etiology is the study of origin or cause of any disease. Pathogenesis is the mechanism of causing disease by any pathogen. Pathogens use four-step to become pathogenic which are contact, colonization, invasion, and infection.  

In pathogenesis the symptoms of disease is observed not the cause so in option B increasing serum ammonia level is the symptom of liver cirrhosis which characterize pathogenesis rather than etiology and in other option, only cause of a medical condition is described so the correct answer is B.

7 0
3 years ago
What is enviroment and its importance?​
xenn [34]

Hi! Your answer is below! I made it as brief as I could.

There are many definitions, meanings, and interpretations for the word "environment," which is frequently used. What is meant by the word "environment"? In common usage, the word "environment" might simply mean "nature" to some people, which refers to the natural environment and all of its non-human qualities, traits, and processes. For those individuals, the concept of the environment is frequently strongly tied to ideas of wilderness and pristine landscapes that have not been affected by human activity, or have only been minimally affected. For some others, however, the term "environment" also contains certain human components. Many individuals would consider pastoral and agricultural landscapes to be a component of the environment, while others are even more comprehensive and believe that the environment includes all features of the earth's surface, including metropolitan regions. Therefore, in common usage, the concept of the "environment" is linked to a variety of assumptions and attitudes that are frequently unsaid but may be firmly held. All of these applications, however, share a common underlying presumption: that humans and the "environment" have some sort of relationship. As a result, the environment serves as the "backdrop" to different aspects of human history, including the habitats and resources that people use, the "hinterland" that surrounds habitations, and the "wilderness" that people have not yet tamed or subjugated.

The word "environment" simply means "surroundings" (environs) in its most basic meaning, therefore any other entity that a person, object, element, or system is surrounded by is considered a part of that entity's environment. Individuals, things, components, and systems, however, seldom live in isolation in reality; rather, they frequently engage in a variety of interactions with the entities around them. Therefore, conceptualizing the "environment" without incorporating some sort of relational idea is not especially helpful. People, things, elements, and systems all have an impact on and are in turn affected by their environment. In certain instances, the networks of connections between various entities may be enormous and extremely complicated. As a result, the "environment" may be thought of as a "space" or "field" where networks of connections, interactions, and relationships between entities take place. Such a conceptualization will be recognizable to individuals who have studied ecology because ecologists are interested in both the biotic (living) and abiotic (non-living) components of environmental systems, particularly their interactions. In reality, the terms "environment" and "ecosystem," which refer to a community of interacting species and their physical surroundings, are sometimes used synonymously in ecological contexts. Since many environmental problems have resulted from the disruption or degradation of one environmental system as a result of changes made to another, whether unintentionally or on purpose, the idea of interconnectedness is crucial to environmental science and management.

The environment is made up of all things, both living and nonliving, that affect people. It is essential to the operation of our daily life. There was the environment/nature and its magnificent species even before there was a human home. Every species, whether on land or in the sea, coexisted peacefully. There was unrest following the start of human civilization and industry. Humans started using the environment as a tool to achieve goals without thinking about the consequences of their actions or the respect they should have for the supporter of life on Earth.

Here are a few justifications on why the environment is crucial:

  • We receive both renewable and non-renewable materials from the environment.
  • Without natural resources like the sun, moon, water, land, and air, human existence would not be conceivable.
  • Genetic diversity and variation are provided by the environment, which are necessary for life to flourish.
  • The environment aids in the disposal of waste produced during the production and consumption of products and services, which is generally in the form of rubbish.
  • Our environment includes the mountains, rivers, lakes, deserts, and other natural areas that we appreciate.

Thank you,

Eddie

8 0
2 years ago
Heredity is BEST described as __________. A. the single-most important influence on skill-related fitness B. natural abilities t
qwelly [4]

Answer: D. None of the above

Explanation:

Heredity can be defined as a biological process that involves the passing on of characters or traits from parents to their offsprings genetically. These traits can be physical for example, height, colour of eyes or mental for example, intelligence.

8 0
3 years ago
Read 2 more answers
Other questions:
  • How does mitosis differ in plant and animal cells? How does plant mitosis accommodate a rigid, inflexible cell wall?
    15·1 answer
  • What could account for the differences in lines A and B in the graph
    15·1 answer
  • Cuál es el órgano más grande el sistema nervioso que regula el equilibrio del cuerpo y controla los movimientos
    14·2 answers
  • From what artery does the right common carotid artery arise?
    13·1 answer
  • Drag the tiles to the correct boxes to complete the pairs.
    10·1 answer
  • What do the arguments for and against the use of stem cells in medical research share?​
    11·2 answers
  • What is the most likely
    14·1 answer
  • How quickly can bacterial contamination occur quizlet?
    9·1 answer
  • All sources of pollution come from human activities. please select the best answer from the choices provided t f
    15·1 answer
  • true or false? although cleft lip and cleft palate frequently occur together, cleft palate is repaired soon after birth and repa
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!