Answer:
the only hereditary variants can pass their hereity to the future generation
Three environmental factors that could cause certain neurologist conditions:
- Radiation: This may produce Cancer in the brain, making it spread.
- Genetic Mutation: This has many symptoms, it can cause autism, Down syndrome, strokes etc.)
- A lot of Drugs/Alcohol: This may cause long term diseases, delirium, and dementia.
Is it okay?
Answer:
Three environmental factors can be:
1.Ionizing radiation: cancer in the bone marrow or stomach
2.Solar radiation: skin cancer
3. Electromagnetic fields: induction of cataracts of the eyes.
Explanation:
1. Radiation sickness occurs when exposed to very high doses of ionizing radiation. It may be acute or chronic. The risk for cancer is dose dependent and an accumulation effect begins if the doses are very low.
2. Skin cancer is malignant that is caused by the uncontrolled division and growth of skin cells, with the ability to invade healthy tissues.
3. The thermal effects of electromagnetic fields produced by radar waves include the increase in body temperature by more than 1º C. Its effects include the cataracts of the eyes, and physiological and thermo-regulatory responses as the body temperature increases .
B. The lower esophageal sphincter
C. Peristalsis
D. The pyloric sphincter
Answer:
the lower esophageal sphincter
Explanation:
B. Convergent evolution
C. DNA hybridization
D. Natural selection
Hypertension
Diabetes
Pulmonary Heart Disease
Answer:
Diabetes
Explanation:
Diabetes is a metabolic disease. :)
The carrying capacity of a biological species in an environment is the maximum population size of the species that the environment can sustain indefinitely, given the food, habitat, water, and other necessities available in the environment. In population biology, carrying capacity is defined as the environment's maximal load, which is different from the concept of population equilibrium. Its effect on population dynamics may be approximated in a logistic model, although this simplification ignores the possibility of overshoot which real systems may exhibit.
Reaching carrying capacity through a logistic growth curve
Reaching carrying capacity through exponential growth, followed by die of and carrying capacity degredation
Carrying capacity was originally used to determine the number of animals that could graze on a segment of land without destroying it. Later, the idea was expanded to more complex populations, like humans. For the human population, more complex variables such as sanitation and medical care are sometimes considered as part of the necessary establishment. As population density increases, birth rate often increases and death rate typically decreases. The difference between the birth rate and the death rate is the "natural increase". The carrying capacity could support a positive natural increase or could require a negative natural increase. Thus, the carrying capacity is the number of individuals an environment can support without significant negative impacts to the given organism and its environment. Below carrying capacity, populations typically increase, while above, they typically decrease. A factor that keeps population size at equilibrium is known as a regulating factor. Population size decreases above carrying capacity due to a range of factors depending on the species concerned, but can include insufficient space, food supply, or sunlight. The carrying capacity of an environment may vary for different species and may change over time due to a variety of factors including: food availability, water supply, environmental conditions and living space. The origins of the term "carrying capacity" are uncertain, with researchers variously stating that it was used "in the context of international shipping" or that it was first used during 19th-century laboratory experiments with micro-organisms. A recent review finds the first use of the term in an 1845 report by the US Secretary of State to the US Senate.