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Natalija [7]
3 years ago
9

Which of the following characteristics of living things best explains why birds fly south for the winter?

Biology
1 answer:
Anton [14]3 years ago
4 0

Answer:

In areas that have cold winters, some common bird foods, such as nectar and insects, may not be available year-round. Birds that eat those foods must fly south to find food to survive. Other birds that eat seeds or bugs that live under tree bark often hang around, since they can continue to find food all winter long.

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Pesticides on foods are stored in body tissues in a process known as
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The Process in which pesticides are stored in body tissues is known as Bio-Accumulation.
When pesticides get into our body through eating food which is not go through the process of metabolism or which is not excreted, that is stored in fatty tissues of the body and as time passes we may build up high concentration of pesticides in our body. Pesticides are the chemical compounds used for killing pests, bacteria etc.
5 0
3 years ago
What enzyme deficiency in RBC leads to hemolytic anemia due to oxidative stress? ​
natka813 [3]

In some cases, massive destruction of red blood cells caused death. This drug-induced hemolytic anemia was shown 30 years later to be caused by a deficiency of glucose 6-phosphate dehydrogenase, the enzyme catalyzing the first step in the oxidative branch of the pentose phosphate pathway.

in short terms, glucose 6-phosphate dehydrogenase

5 0
3 years ago
Based on fossilized evidence, there are scientific claims made about the evolution of certain species. If a scientist studying t
Eva8 [605]

Answer: For the scientist to have alternative hypothesis considered, it is imperative he takes certain steps, this steps will ascertain the scientific claims already made about the evolution of species.

Therefore,the scientist will simply test the alternative hypotheses inorder to know that they are incorrect.

This testing of hypotheses to ascertain their incorrectness is very useful in the study of fossils.

6 0
4 years ago
help plzzz 2 more will mark brainlest. Changes to abiotic factors in an environment can impact biotic factors. Climate change ma
Sedaia [141]

Answer: Here are three reasons if they don't help just tell me.

1. Changes in water temperature can affect the environments where fish, shellfish, and other marine species live. As climate change causes the oceans to become warmer year-round, populations of some species may adapt by shifting toward cooler areas. Oceans are becoming more acidic. 2.  Oceans are becoming more acidic. The acidity of seawater is increasing as a direct result of increasing carbon dioxide levels in the air from human activities, like burning fossil fuels. Concentrations of carbon dioxide are higher than in the last 800,000 years. Carbon dioxide dissolves in water, changing seawater chemistry and decreasing pH (making seawater more acidic). The ocean’s increased acidity results in thinner shells and more shellfish die as they become easier for predators to eat. 3.  More severe storms and precipitation can pollute coastal waters. Warmer oceans increase the amount of water that evaporates into the air. When more moisture-laden air moves over land or converges into a storm system, it can produce more intense precipitation—for example, heavier rainstorms. Heavy rain in coastal areas can lead to increases in runoff and flooding, impairing water quality as pollutants on land wash into water bodies. Some coastal areas, such as the Gulf of Mexico and the Chesapeake Bay, are already experiencing “dead zones” – areas where water is depleted of oxygen because of pollution from agricultural fertilizers, delivered by runoff. The phrase “dead zone” comes from the lack of life – including fish – in these waters.

5 0
4 years ago
Which statement is true about the law of reflection?
Leya [2.2K]

Answer:

The law of reflection defines that upon reflection from a smooth surface, the angle of the reflected ray is equal to the angle of the incident ray, with respect to the normal to the surface that is to a line perpendicular to the surface at the point of contact.

The reflected ray is always in the plane defined by the incident ray and the normal to the surface at the point of contact of the incident ray.

The images produced by plane mirrors and curved mirrors can be understood by the law of reflection.

Law of reflection is defined as:

The principle when the light rays falls on the smooth surface, the angle of reflection is equal to the angle of incidence, also the incident ray, the reflected ray, and the normal to the surface all lie in the same plane.

What is Reflection of Light?

The process through which light rays fall on the surface and gets bounced back is known as a reflection of light.

Explanation:

8 0
2 years ago
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