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katrin [286]
3 years ago
13

Solar radiation travels through the earth's atmosphere and warms the planet's surface. Greenhouse gases like carbon dioxide in t

he earth's atmosphere reabsorb the heat and warm the planet. The amounts of greenhouse gases have been increasing over the past century, causing the earth's surface temperature to increase. This gradual temperature change is thought to have many negative environmental consequences.
Which of these might be a POSITIVE effect of the increase in carbon dioxide levels?
A) rise in sea levels
B) decrease in plant growth
C) increase in plant growth
D) increased melting of ice caps
Biology
2 answers:
Inessa05 [86]3 years ago
8 0

the correct answer is c} increase in plant growth.

denis-greek [22]3 years ago
5 0
Among the given choices, the only positive effect that may be thought off with the increase in level of CO2 in the atmosphere is the increase of plant growth. Carbon dioxide is an essential compound in the photosynthesis of plants. Therefore, the answer should be letter C. 
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Help me please thank you
Leto [7]

Hey ur answer should be A intelligence

7 0
3 years ago
1. How many food chains make up the food web?
viva [34]

Answer:

A food web can be formed by more than one food chain, since the webs includes all possible interactions that can occur between individuals of different trophic levels.

Explanation:

Based on the scheme shown in the image

<h3>1. How many food chains make up the food web? </h3>

This food network is made up of three food chains

  1. <em>Plant → Bird → Snake</em>
  2. <em>Plant → Insect  → Bird → Snake</em>
  3. <em>Plant → insect → Frog → Snake</em>

Food webs often include several food chains, since they are due to the interaction between organisms at different trophic levels, which actually happens within an ecosystem.

<h3> 2. Which organism is an herbivore? </h3>

In this case, both the insect and the bird are herbivorous organisms, since they feed of the producer, which is the plant.

<h3> 3. Which organism is an autotroph? </h3>

The only autotrophic organism is the plant, since it is capable of manufacturing its nutrients from sunlight and inorganic matter.

<h3> 4. Which organism is a third-order heterotroph? To what trophic level does that organism belong? </h3>

The third order heterotroph is the snake, since it feeds on other animals.  The snake is a carnivore and can be a secondary or more commonly tertiary consumer, so it can be placed in the 3rd or 4th trophic level.

<h3> 5. Which organism is an omnivore? </h3>

According to the scheme proposed, the bird is omnivorous, since it feeds on both plants and insects.

<h3> 6. Which organisms belong to more than one food chain? </h3>

In this case, the plant, the insect, the bird and the snake are part of more than one food chain.

  1. <u><em>Plant → Bird → Snake</em></u>
  2. <u><em>Plant → Insect  → Bird → Snake</em></u>
  3. <u><em>Plant → insect</em></u><em> → Frog → </em><u><em>Snake</em></u>
<h3> 7. Which organism belongs to more than one trophic level? </h3>

The bird can be located in both the second and third trophic level, being a primary consumer —when it feeds on plants— or secondary, when it feeds on insects.

<h3> 8. What are decomposers? From which trophic levels are the organisms that decomposers feed on? </h3>

Decomposers are generally bacteria and fungi, organisms capable of degrading organic matter, thus enriching the soil. Decomposers can feed on any trophic level.

<h3> 9. What does a pyramid of energy show about the amount of energy available at different trophic levels of a food chain? </h3>

As the ascent of the pyramid occurs —or at the upper trophic level— the amount of energy available decreases. This is because from one trophic level to another only 10% of the energy can be used. If a plant has 5000 Kcal available, the herbivore that consumes it can only use 500 Kcal.

<h3> 10. Why do different trophic levels have different amounts of energy?</h3>

The main <u>reason for the difference in energy in each trophic level is that energy is lost in each one of them</u>, which the organisms use in their metabolism. A consequence of the metabolism is the loss of energy as heat, which is acquired by the environment.

8 0
3 years ago
Improved bone regeneration through amniotic membrane loaded with buccal fat pad-derived MSCs as an adjuvant in maxillomandibular
muminat

Mesenchymal stem cells and HAM together may improve bone repair, especially in the horizontal dimension. Additionally, this technology lessens secondary bone resorption and the quantity of collected autogenous bone.

HAM:

  • Background: Human amniotic membranes (HAMs), a biological membrane with potential for cell therapy, osteogenesis, and healing, have come under the spotlight as a way to improve the results of treating bone abnormalities. The goal of the current study is to clinically evaluate the possibility of HAM loaded with stem cells from the buccal fat pad (BFSCs) as an osteogenic covering for only bone transplants to maxillomandibular bone lesions.
  • Materials and methods: The current investigation included nine patients with jaw bone abnormalities. Iliac crest bone graft with HAM covering (n = 5) and iliac bone grafts coated with HAM loaded with BFSCs (n = 4) were the two study groups that the patients were divided into. Cone beam computed tomography was carried out for radio morphometric characterization five months after the grafting and before the installation of the implant.
  • Results: The mean increase in bone width was found to be significantly greater in the HAM + BFSCs group (4.42 ± 1.03 mm versus3.07 ± 0.73 mm, p < 0.05). Further, the changes in vertical dimension were greater in the HAM + BFSCs group (4.66 ± 1.06mm versus 4.14 ± 1.03 mm, p > 0.05).

Learn more about  HAM here brainly.com/question/25199209

#SPJ4

7 0
2 years ago
What is acid rain and how is it a problem to oceans, rivers, lakes, ponds, etc.
amid [387]

Answer:

Any form of precipitation like rain, snow, fog, hail, and even dust that has acidic components. When the acidity of a lake  increases, the water becomes clearer and the all the animals decrease.

Explanation:

4 0
3 years ago
Goldman is a psychotherapist who follows the psychodynamic perspective. When treating a patient for a fear of spiders, Dr. Goldm
Mashcka [7]

Answer:

Goldman is a psychotherapist who follows the psychodynamic perspective. When treating a patient for a fear of spiders, Dr. Goldman <u>first has to assists the patient in identifying the unconscious roots of the fear.</u>

Explanation:

The first thing that Dr. Goldman has to do as a psychotherapist to help a patient with a fear of spiders is work with the person to try to find the reason why the patient is scare of spiders and what has provoked this fear. The cause is something that is repressed and operating on a subconscious level, if not, it would be hard for the person to deal with this fear and the cause in an everyday basis, with the help from the therapist the patient can work on this subconscious things and tolerate them.

3 0
3 years ago
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