The skin is the answer. It is an organ of protection.
The skin is made up of two layers namely the epidermis and the dermis. Under the dermis is found hypodermis which is subcutaneous fatty tissue.
The skin has three major functions namely protection, regulation and sensation. When the skin is broken, i.e. wounded, all these functions are affected.
The skin acts as a barrier, providing protection from radiation from the sun, mechanical impacts, pressure and changes in temperature, as well as from microorganisms and chemicals.
integumentary that's the answer
Soaring is a science when birds remain airborne and moving without flapping their wings. They are maintaining thrust and gliding downward but staying aloft
Soaring birds is where the birds can maintain flight without wing flapping, because they using rising air currents. Many gliding birds are able to lock their extended wings by means of a specialized tendon. Some land birds such as vultures and certain hawks, sustain flight for long periods without flapping their wings.
For example soaring California Condor spreads its primary feathers so that each acts as a small, high-aspect-ratio wing. This reduces turbulence at the wingtips and helping the condor to stay aloft circling slowly in thermals.
Vultures have a low aspect ratio (ratio of length to width of the wing) which generally produce a lot of drag. Vultures overcome the problem of by flying with their primary feathers extended, creating slots between them. Each primary serves as an individual high-aspect-ratio wing. This high-aspect-ratio reducing wingtip turbulence and lowering the stalling speed of the wings. This helps vultures to circle in thermals, maintaining thrust by gliding downward, but staying aloft by sinking at a rate slower than the hot air rising.
Grade: 9
Subject: biology
Chapter: animals
Keywords: birds
2) heterotrophs produce ATP 3) autotrophs consume organic molecules
4)autotrophs produce organic molecules
b. False
Answer:
Body fat can be divided into two components:
Essential body fat: It is the minimum percentage of fat required by the body in order to function efficiently and to maintain a good health. It is usually stored in small amounts in muscles, internal organs, bone marrow as well as the central nervous system.
Storage body fat: It is also called non-essential body fat as it is not required for the basic functioning of the body. Excess of food or energy is stored in the form of fat around the organs (visceral fat) and beneath the skin (subcutaneous fat) in the body. It serves as the energy reserve and is used when the body's glycogen reserves are depleted.
Hence, the given statement is true.
The body consists of essential body fat and storage body fat as fat components. The least fat percentage utilized by the body to perform necessary functions for the maintenance of good health is the essential body fat. In contrast, some of the fat is deposited and stored in the body as an energy reserve to be used at the time of depletion of glycogen reserves of the body.True.
Further Explanation:
The fat present in the heart, liver, lungs, spleen, intestines, kidney and muscles is called the essential fat as this fat is required for normal body functions. While, the fat which accumulates in form of the adipose tissue is referred to as storage fat. The storage body fat is also known as non-essential fat as it is not used for the vital functions of the body.
The essential body fat serves as the metabolic fuel for the production of the energy which is utilized to perform important cellular processes. During elevated energy requirements, for example at the time of excessive exercise, the storage body fat is used to fulfill the energy needs of the body due to the depletion of essential body fats.
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Answer Details:
Grade: High School
Subject: Biology
Chapter: Nutrients
Keywords:
Fat components, essential fat, non-essential fat, storage fat, energy reserves, glycogen reserves, cellular processes.
B.It is present towards the boundary of the root, lined by the cortex, and has the tissues like parenchyma and collenchyma inside it.
C.It is present between the epidermis and the endodermis and has tissues like chlorenchyma inside it.
The correct answer is option A,
It is present at the center of the root, surrounded by the pericycle, and has the vascular tissues like xylem, phloem, and cambium inside
Reason:
In vesicular plant species, stele is found in the central part of the stem and root. It majorly consists of vascular tissues with or without the pith. It is located adjacent to the cortex but separated by the endodermis. Its vasculature consists of Xylem and Phloem. It is further bounded by the one or more layer of cell called as pericycle.
A. Sun
B. Sand
C. Wind
D. Oil
Correct answer: D). Oil
Fossil fuel is a type of fuel that is formed by the natural process like anaerobic decomposition of dead organisms. These are formed after millions of years when the dead bodies of plants and animals are buried under the rock. Heat from the internal earth and pressure from the rock changes this fossil into the natural gas and cola etc.
Hence, the correct answer would be option D.