Answer:
Advantageous
Explanation:
Natural selection acts on traits that are advantageous, thus increasing chances of survival and passing on the trait.
Answer:
Explanation:
The disease sickle cell anemia is caused by homozygosity for a mutation:
Albinism is a recessive trait:
The genes S/s and A/a are linked and separated by 1 map unit.
Remember that 1 mu means that 1% of the gametes produced by an individual will be recombinant.
Son: Sa/sA
The gametes he can produce are:
Since the frequency of recombination is 1% (or 0.01), each recombinant gamete has a frequency of 0.005 (since there are two possible recombinant gametes).
The parental gametes will appear with a frequency of 0.99, each of them with a frequenct of 0.495.
Daughter: SA/sa
The gametes she can produce are:
In order for them to have an albino child with anemia (sa/sa), the gamete sa from each parent had to be produced and fused into the zygote. Since the production of gametes by each parent is an independent event, the probability of having sa/sa offspring can be calculated as:
Prob. sa gamete son × Prob. sa gamete daughter = 0.005 × 0.495 = 0.0025
The probability that a child of theirs will be an albino with sickle-cell anemia is 0.25%
Answer:
The right answer to this question is: we don't have a specific enzyme called Cellulase.
Explanation:
An enzyme is basically a system known as lock and key mechanism. It works like this: every single enzyme has its own form, and there's only one way of getting into it for the digestion to happen, the substrate needs to complete this system, as a key on a lock, and once this happens, the digestion can start. But humans don't have this enzyme, if they don't have it, the digestion won't happen in this case. Well known animals that have it are the ruminants, they can digest cellulose easily because they have the specific enzyme called cellulase.
Answer:
it impossible for humans to digest the food that contains cellulose because they do have an enzyme which is required to break beta acetal linkage.
Explanation:
cellulose is a polysaccharide and it is synthesized by animals, plants and in plant cell wall major component is cellulose.
it impossible for humans to digest the food that contains cellulose because they do have an enzyme which is required to break beta acetal linkage.
Ruminants such as cows in the rumen symbiotic anaerobic bacteria are present, cellulases enzyme is produced by these bacteria, that help to digest the cellulose.
B. Leukoctyes
C. Erythrocytes
D. Lymph
Our blood contains blood plasma, leukocytes, and erythrocytes but does not contain lymph. Lymph is a separate body fluid, transported by the lymphatic system.
Blood consists of several components: blood plasma, leukocytes (white blood cells), and erythrocytes (red blood cells). Blood plasma is a yellowish liquid component of blood that holds the blood cells of whole blood in suspension. It makes up about 55% of the body's total blood volume. Leukocytes are the cells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders. Erythrocytes, or red blood cells, are cells present in blood in order to transport oxygen. On the other hand, lymph, although a body fluid, is not a part of the blood. It is mainly composed of white blood cells and is transported by the lymphatic system, separate from the circulatory system that transports blood.
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Answer:
Homeostasis refers to the body's ability to maintain a stable internal environment (regulating hormones, body temp., water balance, etc.). Maintaining homeostasis requires that the body continuously monitors its internal conditions.
Explanation:
Answer:
Homeostasis refers to the body's ability to maintain a stable internal environment.
Explanation:
Maintaining homeostasis requires that the body continuously monitors its internal conditions.
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The Epidemic diseases spread through direct contact, airborne transmission, contaminated surfaces, water, and vectors like mosquitoes or ticks.
Direct Contact: Many infectious diseases are transmitted through direct person-to-person contact. This can include touching, kissing, or other forms of close contact where infectious agents can be transferred.
Airborne Transmission: Respiratory droplets containing infectious agents can be released into the air when an infected person talks, coughs, or sneezes. Others nearby can inhale these droplets, leading to the spread of respiratory infections.
Contaminated Surfaces: Surfaces and objects contaminated with infectious agents can serve as fomites, contributing to disease transmission. Touching a contaminated surface and then touching the face can introduce the pathogen into the body.
Waterborne Transmission: Waterborne diseases are caused by ingesting water contaminated with pathogens. Contaminated water sources can lead to the spread of diseases like cholera or giardiasis.
Vector-Borne Transmission: Some diseases are transmitted through the bites of vectors like mosquitoes, ticks, or fleas. These vectors can carry pathogens from infected individuals to new hosts.
Foodborne Transmission: Contaminated food, either through improper handling, storage, or cooking, can lead to the ingestion of infectious agents, causing foodborne illnesses.
For such a more question on diseases brainly.com/question/14083398
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Question
What are the ways in which epidemic diseases are spread?
Answer:
Epidemic diseases in the New World started when Cortez went to conquer the Aztecs and the Inca and he ended up spreading disease killing thousands. They were spread by the rise of agriculture and through trade. The carriers of these diseases were bird, humans, and animals. Diseases included syphilis, tuberculosis, flu, and typhoid fever.
Explanation: I got a 100% on Edge.
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Brainliest Maybe?
B( KIll infected cells
C( Send signals to increase immune cell formation
D( kill the pathogen