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goblinko [34]
4 years ago
12

What are the wavelike muscle contractions that help move food along the digestive tract?

Biology
2 answers:
Butoxors [25]4 years ago
6 0
It's called peristalsis. It occurs through the oesophagus all the way through the digestive tract.
goldfiish [28.3K]4 years ago
4 0
It is peristalsis. jsjsjsis
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Acid rain and other forms of pollution can cause soil acidification, which decreases the number of decomposers in the soil. What
Liono4ka [1.6K]

Answer:The question is incomplete because the options are not given. Here are the options.

a. The level of energy available in the ecosystem would increase, which would cause the population of autotrophs to increase.

b. The level of available nutrients in the soil would decrease, which would cause the population of producers to decrease

C. The population of primary consumers would increase because of increased production by autotrophs.

d. The population of primary consumers would increase because of decreased competition from decomposers.

The current answer is option B.

The level of available nutrients in the soil would decrease, which would cause the population of producers to decrease.

Explanation:

This is because when the soil is acidic it will reduce the availability of plants nutrients in the soil and it will result in accumulation of toxic chemicals which can affect the growth of plants.

If nutrients are not available for plants growth which is primary producer, it will result in poor growth, low photosynthesis and hence the production of glucose will be reduced because nutrients is essential for plants growth.

4 0
3 years ago
#1 The subatomic particle that is neutral is the _____.
Viefleur [7K]

The subatomic particle that is neutral is the Neutron. (An) electron is a negatively charged particle

According to modern atomic theory, the proton can't move from one energy level to another

With the work of the English chemist John Dalton, the current atomic theory, which has continuously undergone refining, started to blossom at the beginning of the 19th century.

The modern atomic theory holds that atoms are no longer indestructible and now contain electrons, protons, neutrons, and other sub-particles. Isotopes are variations of an element's atoms that can exist.

The concepts of atoms and how they create matter are established by current atomic theory. Atoms are composed of negatively charged electrons revolving around a core nucleus made up of electrically neutral neutrons and more massive positively charged protons.

To learn more about atomic theory please visit -
brainly.com/question/24894311
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7 0
2 years ago
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ch4aika [34]
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3 0
3 years ago
Which statement best explains why the atmosphere is considered an open system?
katovenus [111]
The answer is B

An open system has its energy and matter leave and enter the system's boundaries unlike in a closed system where energy remains within the system.
The earth's atmosphere shares heat and water vapor with the hydrosphere (oceans, seas and lakes), energy form the sun, in the atmosphere and then partly radiated back to space
5 0
3 years ago
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What are the functions of leaves? (Select all that apply.) PLEASE ANSWER ASAP AND GET 25 POINTS
Fantom [35]

The main function of a leaf is to produce food for the plant by photosynthesis. Chlorophyll, the substance that gives plants their characteristic green colour, absorbs light energy. The internal structure of the leaf is protected by the leaf epidermis, which is continuous with the stem epidermis.

Conifer Leaf.  

Microphyll Leaf.  

Megaphyll Leaf.

A leaf is an above-ground plant organ and it is green. Its main functions are photosynthesis and gas exchange. A leaf is often flat, so it absorbs the most light, and thin, so that the sunlight can get to the chloroplasts in the cells. Most leaves have stomata, which open and close.

The two main functions performed by the leaf are photosynthesis and transpiration. Photosynthesis is the process by which green plants make their food from carbon dioxide and water in the presence of sunlight.

8 0
3 years ago
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