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3 years ago

Which events are likely to be catastrophic to an ecosystem?Select the two correct answers

Biology

2 answers:

forsale [732]3 years ago

7 0

Answer: C - introduction of an unchecked invasive species.

E- massive flooding.

Explanation:

The catastrophic event can be define as the event which can cause huge damage to the living and non-living factors of the ecosystem. It can make the environment unsuitable for the survival of the living beings and can become the cause of mass extinction.

C is the correct option because the introduction of invasive species can reduce the population of members of the native species if the invasive species compete with the native species for resources.

E is the correct option because the massive flood will wiped out the living beings and can destroy the landscape and property of the region where it occurs.

emmainna [20.7K]3 years ago

3 0

A catastrophic event with respect to an ecosystem is an event that can cause great damage or suffering to an ecosystem.

Hence options C - introduction of an unchecked invasive species and option E- massive flooding are the correct options.

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What is malaria?biology

Vitek1552 [10]

Answer:

Malaria can be described as a disease which is caused by a parasitic organism. The Anopheles mosquito carries the parasite Plasmodium in it. When this mosquito bites a human being, the parasite gets transferred into the blood of the person causing malaria. Before entering the blood cells, the plasmodium travel to the liver where they get matured.

Malaria is a life-threatening disease which kills many humans each year, especially people living in underdeveloped countries.

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2 years ago

A group of 250 women over the age of 40 are recruited for a study to determine the effects that calcium has on bone health. Half

egoroff_w [7]

Answer:

A. True

Explanation:

The result indicates that taking calcium has no effect on the development of osteomalacia in the women. This is because, of the over 120 women placed on the calcium supplements, it happens to be minimal number of people ( less than 20 people) that develop the osteomalacia disease of the bone.

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2 years ago

From Earth, Jupiter appears to be very bright in the night sky because it is Select one: a. very large and reflects a lot of sun

Alexxandr [17]

Answer:

Explanation:

why ?

size - very large compared to other planets

Its relative closeness (compared to other stars)

High reflective albedo of the light colored clouds

The fact that it is never inside Earth's orbit means that it is always mostly illuminated from our point of view regardless of relative positioning.

HOPE I HELPED

PLS MARK BRAINLIEST

DESPERATELY TRYING TO LEVEL UP

✌ -ZYLYNN JADE ARDENNE

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2 years ago

If sunlight is the source of energy for most organisms on earth, how are humans and other animals able to utilize this energy if

mixas84 [53]

Humans get D vitamin from sunlight. the plants perform photosynthesis and grow , we eat those fruits and vegetables grown in the plants. so indirectly we humans and other animals are benifitted from sun sunlight . flesh eating animals eat herbivores animala so they are also benifitted

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2 years ago

You've been experiencing acid indigestion lately, and you'd like a quick fix for the problem. You do a little research on the In

Licemer1 [7]

Answer:

<em>C: After 1 hour, the pH of the solution in the PEPCID AC beaker was 9.2 and the pH of the solution in the Alka-Seltzer beaker was 8.3</em>

Explanation:

The degree of acidity or alkalinity/basicity of a substance is its pH. The value of pH ranges from 1 to 14 with the former being extreme acidity and the latter being extreme alkalinity while pH 7 is considered neutral.

Hence, any pH below 7 is considered acidic and above 7 is considered alkaline.

Reactions involving equal volumes of an acid and a base can end in acidic, alkaline or neutral pH depending on the strength of the acid/base involved;

Equal volumes of strong acid with strong base will result in neutral pH
Equal volumes of weak acid with strong base will result in alkaline pH
Equal volume of strong acid with weak base will result in acidic pH

If substance A and B reacts with equal volume of the same acid under the same condition and the end result of A is a solution with pH of 9.2 and that of B is a pH of 8.3, it simply means substance A is a stronger base than substance B.

<em>Hence, the only outcome that supports the hypothesis that a tablet of PEPCID AC can neutralize more stomach acid than a tablet of Alka-Seltzer is that the pH of the solution in the PEPCID AC beaker was 9.2 and the pH of the solution in the Alka-Seltzer beaker was 8.3 after being subjected to the same condition.</em>

If an indigestion is due to excess stomach acid, the only way to reduce the acidity is to consume a substance that will decrease the degree of acidity in the stomach. This means that the patient will need to consume something that is alkaline in order to increase the pH.

8 0

2 years ago