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Oduvanchick [21]
2 years ago
13

1) A specialized function shared by the many cells lining the lungs and the lumen of the gut isA) decreased oxygen demand due to

the lack of oxygen in foods.B) increased exchange surface provided by their membranes.C) greater numbers of cell organelles contained within their cytoplasm.D) greater protection due to increased cellular mass.E) lowered basal metabolic rate due to cooperation between cells
Biology
2 answers:
PilotLPTM [1.2K]2 years ago
6 0

Answer:

B) increased exchange surface provided by their membranes.

Explanation:

The intestine that characterizes by being folded, and by having its walls covered by villi that project into the lumen. They are more concentrated in the first portion of the intestine, decreasing to the final region of the organ.  They are involved in nutrients absorption by increasing the absorption area.

Nutrients are absorbed by primary cells and transported to the bloodstream.  Mucus is secreted to protect the epithelium during digestion. Villi also transport water from the blood to the intestinal tract, which helps in food decomposition.

Besides the absorption function, the intestine characterizes by doing the peristaltic movement, secretion through special glandules, digestive function, absorptive functions, secretion functions, and endocrine functions.

Animals must have a respiratory membrane to make gas interchange. This surface must be humid, thin, and revested by a simple plane epithelium, plenty of vessels. The membrane must be permeable and exposed for gases to circulate. This membrane might be on the body surface or in specific respiratory organs, such as lugs. The gas exchange occurs by simple diffusion. Oxygen tends to diffuse to the interior of the organisms, while carbon dioxide tends to get out of it.

gogolik [260]2 years ago
4 0

Answer:

B) increased exchange surface provided by their membranes

Explanation:

Alveoli are tiny air sacs that are responsible for exchanging oxygen (O2) and carbon dioxide (CO2) in the lungs. Alveoli have elastic fibers in order to expand and recoil depending on the volume of air breathed in. The alveolar epithelial cells (pneumocytes) may adopt a shape that serves to increase the surface area of gas exchange. On the other hand, intestinal epithelial cells have microvilli, which are microscopic projections in the plasma membrane. Microvilli serve to increase the cell's surface area, thereby facilitating the absorption of nutrients and water.

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Which of the following types of reproductive barriers separates a pair of insect species that could interbreed except that one m
Arte-miy333 [17]

Answer:

Answer is B, habitat isolation.

Explanation:

Habitat isolation can simply be explained as a situation whereby two insects or organisms of the same species, that have the ability to meet and reproduce could not, because they are living in different habitats.

These different habitats might even be in the same geographical location or area. That is, one insect might be living in or on the surface of the water, and the other living in the soil or the tree. Due to this effect, the insects are unlikely to meet and reproduce.

8 0
2 years ago
Describe how the kidney and bladder work together to remove waste from the body (y'all I understand nothing about biology)
riadik2000 [5.3K]
The kidneys remove any waste that is not needed in ur body then ur bladder lets all the waste out
3 0
2 years ago
Question 5
ArbitrLikvidat [17]

The environmental effects of an individual or group in terms of resources used and waste produced is an individual or group's ecological footprint (option A).

<h3>What is ecological footprint?</h3>

Ecological footprint is the measure of how much biologically productive land and water area an individual, population or activity requires to produce all the resources it consumes and to absorb the waste it generates using prevailing technology and resource management practices.

Living organisms make use of resources in the environment and these can either leave negative or positive effect on the environment that will affect sustainability.

Therefore, it can be said that the environmental effects of an individual or group in terms of resources used and waste produced is an individual or group's ecological footprint.

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8 0
2 years ago
When natural sources of ionizing radiation become increased because of accidental or deliberate human actions such as mining, th
MatroZZZ [7]

The question is incomplete as it does not have the options which are:

artificial

enhanced natural

extraterrestrial

manmade

Answer:

Enhanced natural resources

Explanation:

Natural resources are the resources used by the humans for survival present in the environment or provided by the surrounding environment.The natural resources includes the wood, gas, air, water and other substances.

The substances which emits harmful radiations like radium, thorium, uranium are known as radioactive isotopes.

When these ionizing radiation emitting natural substances increases in the environment due to human activities like the particle accelerators, X-rays and other methods which produces these substances then these substances are refereed to as the enhanced natural substances.

Thus, Enhanced natural resources is the correct answer.

6 0
3 years ago
In this lesson, you have learned that the stomach is an organ in the digestive system that is made up of different tissues that
k0ka [10]

Answer:

The whole body works together, as a “team.”If one of the parts of the body won’t work together as a team, everything will get messed up. The stomach muscles churn and mix the food with digestive juices that have acids and enzymes, breaking it into much smaller, digestible pieces. An acidic environment is needed for the digestion that takes place in the stomach.

Explanation:

6 0
2 years ago
Read 2 more answers
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