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3 years ago

What is required to keep a resource sustainable.

2 answers:

6 0

The answer is A. This ensures that the resource has enough time to regenerate so as to sustain consumption. An example is that of the carrying capacity of a habitat. If a herd of cows exceed the carrying capacity of the grazeland, the grass will be depleted and the area will be predisposed to desertification. The environment will not be able to sustain the cows anymore until the herd number reduce.

Over [174]3 years ago

5 0

A is indeed correct

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Please help need answer.

olchik [2.2K]

Answer:

Non-use of drugs:

1. A teen is with family and friends.

2. A teen is a healthy student and athlete

3. A teen is focused and living life free and happy.

Use of drugs:

1. A teen doesn't socialize and doesn't around too many people due to social anxiety caused by the use of drugs.

2. A teen has health problems in his liver and kidney due to the abuse of drugs and is not able to play any sports due to this permanent health condition.

3. A teen is in jail due to being caught in possession of drugs and failing a drug test and being unhappy with anxiety and addiction.

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2 years ago

Explain the purpose of the placenta and describe how a fetus gets its nutrients.

marusya05 [52]

Answer:

The placenta is the temporary association of fetus and maternal tissue. It is meant for nutrition and transport of different substances.

Explanation:

The placenta is a temporary association of fetal and maternal tissues. The placenta is formed from the trophoblast of the blastula. These trophoblasts form chorionic villi which later forms the placenta. The chorion and allantois also take part in the formation of the placenta. Hence, the human placenta is known as the chorioallantoic placenta. The process of formation of the placenta is known as placentation.

The placenta has several functions but the major function is to provide nutrition to the fetus. The developing fetus gets nutrition from the mother's body by the placenta. The placenta provided with blood vessels which help in the transportation of different substances. It also helps in gas exchange between the mother and baby. Thus it plays a vital role in fetal respiration. The metabolic wastes diffuse through the placenta. Placenta also stores fat, glycogen, which participates in protein metabolism.

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3 years ago

What is the mass number of an isotope that has 1 proton and 2 neutrons

Lunna [17]

Ans. An isotope of Hydrogen called Tritium has one Proton and two Neutrons and its mass is 1

Hope this helps.

8 0

4 years ago

Need help, will mark brainliest! plsss.

yaroslaw [1]

Hello, I Am BrotherEye

Answer: Physiological mechanisms explain any health-related events or outcomes. Physiological mechanisms can be altered voluntarily. For example, exercise causes alteration in the cardiac physiology of resting state. ... Multiple physiological mechanisms are responsible for survival of an individual.

Explanation:

It Is Simple Find The Answer Choice That Is The Opposite Of The One Above

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3 years ago

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Gerald performed an experiment to determine if photosynthesis was affected by the amount of light that a plant received. The dat

Pepsi [2]

Answer: Bar Graph

Explanation: I had this question on my quiz, and wanted to just share the answer with you. It is without a doubt one hundred percent correct.

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4 years ago

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