I don't think so. All a dichotomous key is is a key to different types of species/animals.
Answer:
3.)A person shivering when their body temperature is low.
7.)Ants moving within their mounds depending upon the time of day
1-A plant bending toward a light source.
.-Iguanas laying in the sunlight if their body temperature is low.
.-A unicellular organism beating microscopic hairs to escape a chemical pollutant in its environment
.-Birds migrating when seasons change.
The maintenance of relatively constant internal environment of an organism is called Homeostasis.It is an automatic regulations of the body systems and organs controlled by the brain and some receptors, specific for certain body fluctuations.E.g Thermoreceptors Chemoreceptors etc.
The fluctuations in the body internal systems must be controlled within a narrow limits, for existence of living organism.The brain receives inputs from the receptors, and the outputs from the brain ensures the homeostatic control.
The above examples are typical homeostatic responses by the organisms involved, because the inputs from the receptors send signals to the brain ,and the organisms responded to these with the example above.
Explanation:
Answer:
La contaminación del suelo afecta a la seguridad alimentaria al reducir el rendimiento y la calidad de los cultivos Unos alimentos inocuos, nutritivos y de buena calidad solo pueden producirse si nuestros suelos se mantienen sanos. Si no lo están, no podremos producir suficientes alimentos para alcanzar el #HambreCero
The answer is D- An ovum is a sex cell. If it contains a mutation, this mutation may be passed from parent to offspring. Only mutations on gametes may be passed from parent to child. This is because these cells use during sexual reproduction.
The possible benefits of genetic engineering include:
More nutritious food.
Tastier food.
Disease- and drought-resistant plants that require fewer environmental resources (such as water and fertilizer)
Less use of pesticides.
Increased supply of food with reduced cost and longer shelf life.
Faster growing plants and animals.
