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3 years ago

Plants have a ____ which prevents bursting in a hypotonic environment

1 answer:

3 0

The answer is cell wall. It is the rigid outer layer of plant cells that is composed of subunits of cellulose molecules, pectin, lignin, or hemicellulose. It enables the plant to withstand turgor pressure, without bursting, required to give them support.

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Match the following for the following questions: Part Aa. Secretes b. Regulatory c. Hormones d. Supports Body and Anchors e. Mus

RoseWind [281]

Answer: (The question is incomplete) The human body is made up of different organs. An organ is a group of tissues in a living organism that have been adapted to perform a specific function. The different organs in the body can work together to perform a similar function. These groups of organs performing a common function constitutes an organ system. For example, the circulatory system which is responsible for transporting blood throughout the body, consists of the heart and blood vessels known as veins, arteries and capillaries.

Explanation:

The hypothalamus which is part of the endocrine system organ synthesizes and secretes regulatory hormones.

The skeleton which is part of the Skeletal system supports Body and Anchors Muscle.

The blood which is part of the Circulatory (cardiovascular) system transports substances throughout the body including the heart.

The respiratory system exchanges Oxygen and CO₂ between body and air.

The Muscular system is an organ system consisting of muscles which permits movement of the body.

The immune system of the body defends the body against diseases.

The lymphatic system functions to keep body fluid levels in balance and to defend the body against infections. It includes thymus and spleen.

The excretory system rids body of liquid waste. It includes the skin, the kidney and urethra, the bladder, and two ureters.

The digestive system which includes the stomach, the liver, anus, large and small intestine,e.t.c, breaks down food and absorbs nutrients.

The nervous system processes sensory information and controls responses. It includes the brain & spinal cord which form a part of the nervous system called the central nervous system (CNS)

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3 years ago

Physicist at a respected research laboratory reports a startling new discovery. Her conclusions are based on data from many tria

igor_vitrenko [27]

Answer:

The experimental results cannot be reproduced.

Explanation:

The ability to follow a specific set of procedures and achieve the same results is one of the key parts of the scientific method. If the results cannot be replicated, the study is invalid. Unfortunately, results of invalid studies are sometimes announced to the public before replication attempts can be made to invalidate the study. Trying to reverse public belief at that point can be impossible.

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2 years ago

If u compared an animal cell to a city, the mitchondra would be similar to the

Nitella [24]

The answer is D. Since mitchondra is the energy source for the cell, it provides energy. Be sure to reread the lesson. Hope this helped!

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3 years ago

The human digestive system is a group of organs that break down food, absorb blank

dsp73

Answer:

Absorb Energy

Explanation:

As the food breaks down in the human stomach the food breaks down and turns into energy for the body.

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3 years ago

Forests dominated by gymnosperms tend to have mechanisms to allow it to regenerate after a fire. As a consequence this type of f

Snowcat [4.5K]

Answer:

Forests dominated by gymnosperms tend to have mechanisms to allow it to regenerate after a fire. As a consequence this type of forest is dominated by trees of single age .

Explanation:

It is possible to conclude the question given above in many ways. After a forest fire in a specific forest patch occurs, the impacts are determined by the severity of the fire and the type of forest in which the occurrence occurs. Usually, the dramatic effect on the trees and plants that can be seen in that region can be seen after such an occurrence has occurred. In certain situations, the situation can also worsen, leading to the destruction of the entire cover, if the circumstances favor the propagation of fires. In such cases, the removal of the prevailing structure can lead to the formation of a new forest structure through a mechanism called 'succession,' in which there is a sequence of progression in a biologically acceptable manner through the growth of different plant species. Simply put, the new plants will attempt to adapt or acclimatize to the conditions introduced after forest fire in such a way that this will later provide the route for the growth of plants and trees that can not easily accommodate in the harsh conditions. Therefore, instead of the forest surviving for a short period of time following a forest fire occurrence, there would be changes in the nature of the forest. This suggests that option 'B' is not the response that is most suitable.
Choice 'A' appears to be logically inaccurate, taking into account that if they are of high intensity, fires may be uncontrollable. In addition, there is no clear mention of the fire's region of origin and which trees are most affected. Typically, gymnosperms illustrate a simple process in which they can not limit their destruction from the flames, while they can provide a way for their progeny to initiate next generation development in the form of seed. This occurs in the case of Gymnosperms in which, under ordinary conditions, the seeds of the plants are enclosed within a cone that is restricted from germinating. Although the fires pave the way for the seeds to germinate under certain fire conditions, which in turn leads to the emergence of the next generation of gymnosperms, and several studies indicate that these newly introduced seeds would have the same age as choice 'C' indicated. But, as this is not under the jurisdiction of the US Forest Service, legally, option 'A' tends to be wrong. At the same time, it can be seen that forest fires are not consistent in their coverage in certain cases, and thus the chances of dispersal and germination tend to be not even and thus choice 'C' can be reported to be either correct or incorrect in all possible ways.
But, first, it is important to know what an overstory is for the option 'D'. A forest consists of trees of all sizes, from the smallest to the tallest pine trees. The uppermost element that is directly in contact with the light from the sun is the overstory. The manner in which the degree of overstory damage occurs depends on the moisture content of the trees and the other associated conditions around the trees. Taking this into account, a forest fire may either lead to the loss of an entire overstory or can have impacts that are confined to plants and trees at the ground level. So, even the 'D' option can be right or inappropriate. But, therefore, choice 'C' should be the most suitable response, taking into account that most studies indicate growth of single-age trees due to germination mediated in the presence of fire. This seems to be scientifically right for a small patch where there was also fire-mediated damage. Accordingly, the most suitable response should be option 'C'.

Hence , the correct option is C.

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3 years ago