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2 years ago

1. Muscles move tendons attached to bone by performing an action called _______.

Biology

1 answer:

REY [17]2 years ago

5 0

1. Contraction

2. Actin

3. Tendons

4. Epidermis

5. Dermis

6. Acne

7. A nerve signal from the brain arrives at the intersection of the nerve and muscle cells and releases acetylcholine from the neuron. This triggers chemical changes in the muscle cell involving ions, including Ca2+. Calcium triggers the thick filaments, made of myosin, to attach to the thin filaments, made of actin, in the muscle cell, and the myosin pulls the actin toward the center of the muscle cell. ATP causes the release of the actin fibers, allowing the muscle to relax and the process to begin again.

For Penn Foster.

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Products are what is created during a reaction. What are the three products of cellular respiration

Setler79 [48]

Answer:

The three products of cellular respiration are:

ATP
Water
Carbon dioxide

Explanation:

Cellular respiration is the process of breaking down glucose molecules to yield energy in the form of ATP.
C6H12O6 + 6O2 → 6CO2 + 6H2O

ATP Production:

The first step of cellular respiration, glycolysis, yields 2 net ATP.
The second step, Kreb's cycle produces 10 NADH and 2 FADH2 molecules. Both these molecules store energy that is released in the electron transport chain to produce 34 ATP.

Therefore, a total of 36 ATP are produced as a result of cellular respiration in eukaryotes.

Carbon dioxide Production:

2 molecules of CO2 are produced during the conversion of pyruvate into Acetyl Co-A by the pyruvate dehydrogenase complex.
4 molecules of CO2 are produced in the Kreb's cycle.

Water Production:

Water is produced in the Electron Transport Chain (ETC) by the reduction of oxygen.

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3 years ago

IMAGE ABOVE ITS REALLYYY EASY FOR OTHERS PLEASE HELP ONLY A SMALL PARAGRAPH OR LESS

sattari [20]

It can change but inter fearing with each other

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3 years ago

Secondary metabolites are toxic chemicals in plants that are not used in or derived from photosynthesis or respiration. What are

Anuta_ua [19.1K]

Explanation:

Metabolites are the different kinds of the substances which are essential to metabolism of the organism.

Metabolites produced by the plants can be categorized into the primary metabolites and the secondary metabolites.

The primary metabolites have important role in survival of plant and play an active role in the respiration and the photosynthesis.

On the other hand, the secondary metabolites are not involved in normal growth and the development of plant. Although absence of these type of metabolites can lead to impairment of survivability of plant in long run.

Secondary metabolites are produced mostly by the plants for the defense purposes. They include steroids, alkaloids, phenolics, essential oils, resins, tannins, lignins, flavonoids, etc.

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2 years ago

What cells act as a message chain to send signals through the nervous system?

asambeis [7]

Pretty sure the answer to this question is neurons or nerve cells.

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2 years ago

The Earth's biodiversity is determined by the variety of all living organisms on Earth. In recent years, ecologists and other sc

bogdanovich [222]

Answer-:

Preserving the biodiversity of Earth is important because biodiversity increases the efficiency of ecosystems where every species, no matter how small, has an important role to play. A greater number of species of plants means a larger range of crops. Greater diversity of organisms guarantees ecological survival for all lifeforms

Explanation:

REASONS WHY PRESERVATION OF THE EARTH'S BIODIVERSITY IS IMPORTANT-

ECOSYSTEM PRODUCTIVITY - One of the key reasons we should continue to concentrate on biodiversity protection is that it helps to improve the efficiency of the ecosystem. Naturally, a properly working ecosystem would be more immune to extreme environmental factors, such as climate change.
HEALTH DETECTIONS -The vast number of medical advances waiting to be made is one of the most significant reasons why we should continue working on saving biodiversity. To develop new cancer therapies and more, scientists use observations of plants , animals, and even microbes. As a matter of fact, all human drugs must first be tested before being tested on humans in laboratory animals. This is essential for determining their toxicity, dosing, as well as effectiveness. In some of the most remote sections of the planet, many of the animals used in these discoveries are also included.
Recreation and Natural Beauty -  The value of natural beauty is another great explanation why we should continue focusing on protecting biodiversity. There are several historical sites around the country that need to be preserved to maintain their status for future generations to enjoy, such as the redwood forest. These trees regularly have a lifespan of 600 years in the case of the redwoods. Some are as old as 2,000, too. Their growth is extremely sluggish, however. Wild and natural environments provide ways to get away from urban environments. In addition, people can enjoy outdoor activities such as bird watching, canoeing, hiking, and photography of nature.
The Ecosystem 'Survival - With a few exceptions, to survive, each species on Earth relies on the services of other species. This partnership is part of the idea of what an ecosystem is. The relationship between soil, plants , and bacteria is a pertinent example. This is known as the period of nitrogen. Other examples which are important include -: Animal waste which nourishes the soil, Crops also produce straw, which is an animal food source, As natural nitrogen fixers, algae represent and Aerate the soil with rats.
Economic Benefits -: Many advantages have been provided to humans through biodiversity, and many come in the form of products. These products are extracted and sold, and everything from crops to medicines is included.

Hence, preservation of the biodiversity of Earth is important from all aspects of life.

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3 years ago