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Certain seed-eating birds are able to crack seeds according to the size of their beaks. Long beaks are able to crack larger seeds, whereas shorter beaks are able to crack smaller seeds. A graph of a bird population with different-sized beaks is shown below.After a several-year drought, smaller seeds became scarce, but drought-resistant trees continued producing larger seeds. What graph would best predict the change in beak length of the bird population?
List and describe the function of each of the four components of blood.
Some of the largest, and most beautiful, natural crystals ofcan be found in the Naica mine.a) Gypsumb) DiamondC) Limestoned) Quartz
if you expose a photosynthesizing plant to water that contains both radioactive H and Radioactive 0, in which of the products of photosynthesis will the radioactive H and O show up?
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Answer:
los aspectos más relevantes son aquellos destinados a fomentar acciones conjuntas con el objetivo de revertir problemas ambientales y plantear políticas públicas asociadas al desarrollo sostenible en ciertas regiones del planeta
Explanation:
El informe de Brundtland es un documento desarrollado en 1987 con el propósito de abordar el problema del desarrollo económico y social desde una perspectiva medioambiental, planteando así por primera vez el concepto de 'desarrollo sostenible'. El documento analiza con una mirada crítica las políticas de desarrollo económico que se llevan a cabo sin considerar la sustentabilidad medioambiental. El informe lleva el nombre Brundtland en honor a la primera ministra de Noruega durante parte de 1980, Gro Harlem Brundtland. El documento fue revelador para su época ya que visibilizó el problema del desarrollo económico y social en función de la sustentabilidad de nuestro planeta. Un punto importante a tener en cuenta del informe es que a fines de sustentabilidad medioambiental la población mundial no podría seguir creciendo a niveles exponenciales como los observados actualmente o a fines del siglo pasado, prediciendo que este valor se debería estabilizar en un valor entre los 7.700 millones y 14.200 millones de personas.
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Answer:
All of the above are true.
Explanation:
Microbial cells are surrounded by the plasma membrane or cytoplasmic membrane. It serves as a selective barrier allowing materials in and out of the cell e.g. allowing nutrients in and waste out.
Microbial cells grow independently, in that they are unicellular, and so do not depend on the other cells to carry out the process. However, they rely on nutrients, and in some environments, these may be nutrients produced by other organisms.
Microbial cells are unicellular, although some microorganisms are multi-cellular. Microorganisms such as bacteria are unicellular, that is, exist as single cells.
Bacteria and viruses are microorganisms.
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Answer:
c
Explanation:
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Threonine contains two functionalgroups: an amino group (-) and a hydroxyl group (-OH).
These functionalgroups are responsible for the molecule's properties and reactivity. The amino group is part of the amino acid structure, while the hydroxyl group is characteristic of alcohols.
The carboxyl group (-COOH) is another functionalgroup present in threonine. It is acidic in nature and can donate a proton, making threonine capable of acting as a weak acid.
The hydroxyl group (-OH) attached to the side chain of threonine is an alcohol functional group. It provides threonine with unique chemical properties.
Thus, threonine contains two distinct functional groups: an amino group (-) and a hydroxyl group (-OH).
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Answer:
It contains Amino group NH2, Carboxylic Acid group COOH, also Hyroxyl group OH
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Answer:
RequiredAnswer:-
Mass=m=50kg
Acceleration =a=2.5m/s^2
- According to Newton 's second law of motion
- Substitute the values
Answer:
125 Newton
Explanation:
Given,
mass(m)=50kg
acceleration(a)=2.5m/s²
we have,
F=ma
=50×2.5
=125 Newton
wait to see if it goes lower
increase muscle activity to generate heat
add fur or fat to increase insulation
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Answer: The correct answer would be increase muscle activity to generate heat.
Explanation:
Endothermic animals are those which maintain their body temperature mainly by their metabolic activity irrespective of environmental heat.
In case, there is a drop in environmental temperature then endothermic animals increase their metabolic activity and metabolize sugars and fats at a faster rate.
It release more heat and increase the body temperature.
One the various methods for increasing metabolism is increase in muscle activity such as done in shivering. Shivering increases muscle activities which increases body temperature.
Final answer:
An endothermic animal would increase muscular activity to generate heat in response to a sudden drop in environmental temperature. This internal heat production is part of their physiological adaptation to maintain stable body temperature in varying conditions.
Explanation:
When faced with a sudden drop in environmental temperature, an endothermic animal will typically increase muscle activity to generate heat. Unlike ectothermic animals, endotherms maintain a stable internal body temperature despite changes in the environment. They are capable of doing this because they generate their own heat internally, often through processes like muscular activity including shivering. Therefore, in an attempt to sustain a constant body temperature when exposed to a colder environment, muscular activity within the animal would increase to produce more heat. This, in turn, helps to counteract the cooling effect of the lower external temperatures.
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