the number of organisms of a specific species in an ecosystem is known as a
a) community
b) population
c) carrying capacity
d) habitat

Answer: answer is cytosine

Explanation:

Answer: D

Explanation:

The nucleus is the organelle that houses DNA

A describes the smooth ER. B is a protein. C is the mitochondria.

Answer:

Ecosystem, community, population, Organism

Explanation:

Organism is a single species

Population is a group of the same species

Community is a group of different populations

Ecosystem is where communities live

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Answer:

Sustainable development is an organizing principle for meeting human development goals while simultaneously sustaining the ability of natural systems to provide the natural resources and ecosystem services on which the economy and society depend on.

Explanation:

Answer: It's Centers for Disease Control and Prevention

Explanation:

Answer:

ATP.

Explanation:

ATP molecules are sent from cell A to cell B  in order for the muscle to move because muscle movement requires energy. Beside ATP, NADH, FADH2, and creatine phosphate are the molecules that are needed for the movement of muscles. The ATP molecules is broken down into ADP + phosphate ion in which phosphate ion is used as energy to move muscles of the body so we can say that cell A send ATP molecules to cell B.

Due to the fact that enzymes are made up of functionally-group-containing amino acid chains, the pH of a solution might have an effect on the enzyme.

By raising the bond energy, temperature impacts enzymes by forcing the atoms in the enzyme's bonds to drift apart from one another.

These functional groups are susceptible to adjustments caused by external charges. Each enzyme operates within a rather narrow pH range. There is a pH where it is most active (the optimal pH). This is due to the fact that pH variations can create and destroy intra- and intermolecular interactions, altering the structure of the enzyme and its functionality.

When certain circumstances are met, enzymes work at their best. pH, enzyme concentration, and substrate concentration are variables that influence enzyme activity. Enzyme activity is affected by temperature.

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The statement regarding p53 that is not true is: "p53 promotes cell survival and growth regardless of cellular stress or DNA damage."

In fact, p53 is a tumor suppressor protein that plays a crucial role in preventing cancer by stopping cell growth and inducing apoptosis (cell death) in response to cellular stress or DNA damage.

Apoptosis, also known as programmed cell death, is a natural process of cell self-destruction that plays a crucial role in various physiological and pathological events in multicellular organisms. It is a tightly regulated and highly organized process that helps maintain tissue homeostasis, eliminate damaged or unwanted cells, and shape development.

Apoptosis involves a series of cellular events orchestrated by specific signaling pathways. These pathways can be activated by various internal and external stimuli, such as DNA damage, cellular stress, developmental cues, or immune responses. The activation of apoptotic pathways leads to the activation of specific enzymes called caspases, which are responsible for executing the cellular demolition process.

During apoptosis, cells undergo characteristic morphological changes, including cell shrinkage, membrane blebbing, chromatin condensation, and fragmentation of the cell into membrane-bound apoptotic bodies. Importantly, these changes prevent the release of harmful cellular contents and stimulate phagocytic cells to engulf and remove the apoptotic bodies, preventing inflammation and tissue damage.

Apoptosis serves several important functions in different contexts. During development, it plays a critical role in sculpting and shaping tissues and organs by eliminating excessive or unnecessary cells. In the immune system, apoptosis helps regulate the number of immune cells, eliminating autoreactive or infected cells. It is also involved in eliminating damaged or potentially cancerous cells, acting as a protective mechanism against tumor formation.

Apoptosis is a fundamental biological process that maintains tissue homeostasis, shapes development, and eliminates unwanted or damaged cells. Its highly regulated nature ensures that cells undergo self-destruction without causing harm to the surrounding tissues. Understanding the mechanisms and regulation of apoptosis is crucial for various fields, including developmental biology, immunology, and cancer research.

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Ecosystem recover in stages, gradually returning to the original system.

C is the correct answer.

Animals may be immediately harmed by the force of the disaster or indirectly influenced by changes in habitat and food supply. When their habitat is destroyed, endangered animals are particularly at risk. Debris entering reservoirs and streams or sewage treatment plants could have an effect on the water quality.

Following a natural disaster, the neighborhood frequently goes through ecological succession and gets back to how it was before the event. Given that there has been a long history of catastrophic disasters on earth, healthy ecosystems will recover.

Management of disaster and climate risk is improved by conservation, restoration, and sustainable use and management of land, wetlands, ocean, and other natural resources. Ecosystems are crucial to the resilience and livelihoods of many nations' most defenseless citizens.

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Primary bone differs from secondary bone due to its structure (1), intramembranous ossification implies an aggregation of osteoblast and ossification (2), while endochondral ossification implies the formation of cartilage first (3).

Part 1:

Part 2: this process includes:

Part 3:

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Answer:

secretary bird

Explanation:

Answer:

C. It takes millions of years to form.

Explanation:

Oil, natural gas, and coal are collectively called fossil fuels. Fossil fuels were formed within the Earth from dead plants and animals over millions of years—hence the name “fossil” fuels. They are found in underground layers of rock and sediment. Pressure and heat worked together to transform the plant and animal remains into crude oil (also known as petroleum), coal, and natural gas.  

Blows to the brain or stroke damage can kill neurons instantly or steadily starve them of the oxygen and nutrients they require to live.

When neurons lose their connection to axons situated below the location of injury, communication between the brain and muscles can be disrupted. Pressure, stretching, or cutting can all cause neuron injury. An injury to a neuron can disrupt the transmission of signals to and from the brain, resulting in muscle weakness or lack of feeling in the injured region. Nerve damage can have an effect on the brain, spinal cord, and peripheral nerves. Pathological reasons of inappropriate neuronal cell loss include traumatic injury, environmental toxins, cardiovascular disorders, infectious agents.

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Jan Baptista van Helmont concluded that the main source of the tree's biomass was WATER (H2O). He discovered that photosynthesis requires H2O as a reactant.

Photosynthesis is a series of metabolic reactions by which plants produce simple carbohydrates (i.e., biomass) and carbon dioxide by using sunlight, oxygen (O2) and water (H2O).

Jan Baptista van Helmont partially discovered this mechanism of photosynthesis.

During his experiments, van Helmont observed that most of the mass of a tree had come from H2O, thereby concluding that plants grow by drinking water instead of by eating soil as popularly believed.

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Answer:

A.) The haploid number would be 3

Answer:

The answer is A

Explanation:

Answer:

Geography affects the weather in many ways. ... Topographical features like mountains affect the weather mostly in the way that they direct air currents. For example, air is forced to rise over mountains. Moist air will cool as it rises, and then the clouds release the water, causing precipitation like rain or snow.

Explanation:

base on research.. hope it helps

I think it is C but uh if its not D Hope this helps-

Explanation: because

Answer:

Menstruation, or period, is normal vaginal bleeding that occurs as part of a woman's monthly cycle. Every month, your body prepares for pregnancy. If no pregnancy occurs, the uterus, or womb, sheds its lining. The menstrual blood is partly blood and partly tissue from inside the uterus.

Answer:

The process autotrophs (plants) use to create food. they convert CO2 (Carbon Dioxide) and H2O (Water) into O2 (Oxygen) and glucose (sugar).

Answer:

photo synthesis is the green plants which making other organisms to convert engry into chemical

Answer:

what test are going to be carried out

The thymus is an endocrine gland that makes and helps certain white blood cells called T-lymphocytes mature. Hence, the answer is option D.

In your upper chest, just behind your sternum (breastbone) and in front of your heart, a small lymphatic gland can be found there, called the thymus. It helps to produce and train special white blood cells called T-Lymphocytes or T-cells.

The lymphatic system consists of various vessels, tissues and organs that defend against diseases and infections. They are part of the immune system. The cells that defend against diseases are called T-Lymphocytes. They are manufactured in the bone marrow, then transported to the thymus where they mature and become specialized.

The thymus gland starts to make T-Lymphocytes before birth. It is most active during childhood and stops working after puberty. At this stage, the body has all the T-Lymphocytes it needs.

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Plants with flowers and fruits belonging to the Anthophyta division have developed different structures capturing the feeding interest of different animals, from insects like bees to primates. Colored and big floral structures such as petals can call the attention of those species, but also the resources such as pollen, nectar, fruits, and seeds. We can name these structures then, being the 1 structure the ovule, and the 2 structure the ovary, where a female flower stores its ovules, the 3 structure being the style, and inside, the pollen tube, and the 4 structure the stigma, where the pollen reaches first the female structures. 5 and 6 are the male structures of the flower, the anther, and filament, respectively, and 7 and 8 are the sepals and the receptacle of the flower, being these structures for the protection of the upper floral forms.

Each time a rat was put inside Chamber A in a lab environment, it experienced shock. The rat eventually exhibits a fear response as soon as it is put in the chamber. The animal no longer reacts with fear when placed in the chamber following the ablation of the amygdala's primary nucleus.

A shock and a bell sound are both heard by the rat. Now, when the animal hears a bell, it experiences fear, as shown by freezing behaviour. Unconditioned stimulus is the sound of the bell.The ability to recognise emotions from facial expressions is compromised by amygdala injury.

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In a laboratory setting, a rat has experienced shock each time it has been placed inside Chamber A. Over time, the rat shows a fear response as soon as it is placed in the chamber. After the destruction of the ____________ of the amygdala, the animal no longer shows a fear response when placed in the chamber.

Answer:The target cells of neurons include other nerve cells in the brain, spinal cord, and autonomic ganglia, and the cells of muscles and glands throughout the body.

Explanation:please give braineest

Answer:

A nerve is formed by a bundle of many neurons. Neurons develop from the neural tube of the early embryo and in many animals continue development until sometime after birth. The development of motor neurons that have elongated axons is best understood. These cells are derived from tissue on the ventral side of the neural tube.

Explanation:

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Answer:

The map uses color to indicate where a country falls compared to the world average. Green shows that a country is below the average ecological footprint size, whilst red shows countries that are above it.

As a local farmer, the type of crops that would be appropriate for my region would depend on several factors, including climate, soil type, and market demand.

For instance, if the area has a warm and humid climate, crops such as rice, maize, and beans would be ideal. On the other hand, if the area is colder and drier, crops such as wheat, barley, and potatoes would be more suitable. As a farmer, it is essential to ensure that the crops are not only productive but also nutritious.

Some ways to achieve this include using organic fertilizers to enrich the soil, implementing crop rotation practices to prevent soil depletion and pest infestation, and using natural methods to control pests and diseases, such as companion planting or biological control.

Another important factor to consider as a farmer is access to irrigation, as water is crucial for plant growth and development. Depending on the location, this could be achieved through methods such as drip irrigation or rainwater harvesting.

Overall, as a farmer, my main priorities would be to maximize crop yields while ensuring that the crops are healthy and nutritious. This can be achieved by carefully selecting appropriate crops for the region, implementing sustainable farming practices, and ensuring adequate access to water and other resources.

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a) Microtubules play a role in distributing chromosomes to the new cells during cell division.

Microtubules are protein polymers that form a crucial part of the cytoskeleton in eukaryotic cells. They are long, thin, and cylindrical, and play a role in maintaining cell shape, facilitating cell division, and transporting materials within the cell.

Microtubules are composed of individual subunits of a protein called tubulin and they can rapidly assemble and disassemble, making them flexible and dynamic. During cell division, microtubules help separate the chromosomes in the cell, pulling them to opposite ends of the cell and ensuring that each new cell receives a complete set of chromosomes. In addition to their role in cell division, microtubules are involved in processes such as cell movement, intracellular transport, and cilia and flagella movement.

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Answer:

Pretty sure it's D. Could be wrong tho.

Answer:

Write the names of the cells

Explanation:

I've just done that literally on monday