The number of protons plus neutrons in an atom added together equals the atomic mass of an element. true or false

Blue-green algae is an  important organisms that play different roles in the nitrogen cycle.

Blue-green algae converts nitrogen into organic nitrogen compounds as well as Nitrobacters and other Nitrogen-fixing microbes. They are essential to healthy water bodies as they are responsible for producing oxygen and are a source of food to certain aquatic animals.

Nitrates and ammonia produced in the nitrogen cycle are as a result of nitrogen fixation made by algae and plants that animals eats and incoporate into their body compounds. They are able to convert dinitrogen however unavailable into bioavailable ammonia.

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I think it is the intestines

Classical endocrine signaling is responsible for endocrine signaling is the hormone transported in the blood

In classical endocrine signaling, the hormone is transported in the blood.

Classical endocrine signaling involves the release of hormones from endocrine glands into the bloodstream, which then carries the hormone to target cells in other parts of the body. Hormones bind to specific receptors on the target cells and trigger a response.

In contrast, paracrine signaling involves the release of signaling molecules that act on nearby cells. These signaling molecules diffuse through the extracellular fluid and bind to receptors on nearby cells, but they do not enter the bloodstream.

Autocrine signaling is similar to paracrine signaling, but the signaling molecule acts on the same cell that produced it. Autocrine signaling molecules are released into the extracellular fluid and bind to receptors on the same cell.

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Answer:

just tryna get points lol

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This is a problem in the field of ecology.

The problem of quagga mussels in the lake is an ecological issue that requires scientific assessment and management.

It falls under the discipline of ecology, which studies the relationships between organisms and their environment.

Ecologists investigate the impacts of invasive species on the ecosystem and devise strategies to control their spread and minimize their effects.

In this case, scientists will need to examine the size of the quagga mussel population, their distribution, and their ecological interactions with native species.

They will also need to recommend measures to prevent further introduction of quagga mussels and to manage their population growth, such as using chemical treatments or biological controls.

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Answer:

657

Explanation:

I don’t know lol

Answer:

sds in lysis

Explanation:

Answer:

All of the above

Explanation:

The DNA polymerase III is a multi-subunit enzyme which is essential for the synthesis and activation of the majority of the genome in Escherichia coli.

DNA replication is random in both prokaryotes and eukaryotes, causing several DNA polymerase to synergistically replicate the continuity (leading) and discrete (lagging) DNA strands.

The points that are given support and reflect the assertions that E.coli DNA polymerase III plays a very important role in nucleotide incorporation during replication.

Answer:

Explanation:

Each type of cell in a multicellular organism has slightly different DNA, allowing the different types of cells to specialize. ... The genes necessary for different types of cells to function segregate into different cell types in a multicellular organism.

Carbon is transfered by plants and animals.

Carbon flows between plants and animals, environmental storage centers that absorb and store carbon for long periods of time. Thus, the correct option is A.

Carbon cycle is one of the main biogeochemical cycles which has four main steps. In this first, carbon enters into the atmosphere as CO₂. CO₂ is absorbed by the autotrophs such as green plants for photosynthesis. Then, the animals consume plants as food, thereby, incorporating the carbon into their system. Afterwards, animals and plants die, their bodies decompose and the carbon is reabsorbed back into the atmosphere.

In this, plants use carbon dioxide for photosynthesis. Through this, they remove the inorganic carbon from the atmosphere and incorporate it into the plant's tissues in the form of sugars such as glucose, sucrose and starch. Animals get carbon by eating the plants or by hunting other animals.

Therefore, the correct option is A.

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Answer:

Explanation:

Geological substratum refers to the solid rock or layer of Earth's crust that lies beneath the soil, sediment, or other surface materials.

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When X fires 10 times and Y fires 10 times, the result will be a subthreshold summation.

Subthreshold summation happens when two or more presynaptic inputs that are sub-threshold (i.e., they cannot create an action potential) combine their effects on the postsynaptic neuron.

Here, the postsynaptic neuron has an RMP of -70mV and a typical threshold of -55mV. When neuron X is stimulated, it depolarizes by 0.5 mV.

When X and Y are stimulated simultaneously, the postsynaptic neuron depolarizes by 1 mV, which is sub-threshold (below -55mV).

Therefore, when X fires 10 times and Y fires 10 times, the postsynaptic neuron will experience subthreshold summation and no action potential will be fired.

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The independent variable in this experiment is the number of rats.

The dependent variable is the mass of each rat.

The control group in this experiment is the mass of each rat.

Nutritionists commonly work with individuals or populations to teach them more approximately general nutrients, food, and health. Their recognition is of meal behavior. This consists of working with people to plot and put in force meal plans that improve the person's or circle of relatives' nutrition.

In place of dietitians, who're qualified to diagnose eating disorders and lay out diets to treat particular medical conditions, nutritionists address standard dietary pursuits and behaviors. Nutritionists are regularly employed in faculties, hospitals, cafeterias, lengthy-term care centers, and athletic businesses

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Answer:

The crane has a sharp and pointed beak adapted for catching and grasping prey. The sharp beak allows the crane to effectively stab and pierce its prey, such as fish, frogs, or small animals. The pointed shape helps the crane to accurately target its prey and secure a firm grip.

On the other hand, the duck has a flat beak, which is better suited for its specific feeding habits. Ducks are primarily filter feeders, and their flat beak enables them to sift through water or mud to collect small organisms, insects, and plants. The flat beak acts like a sieve, allowing the duck to strain out food particles while retaining water.

The difference in beak shape between the crane and the duck reflects their distinct feeding strategies and ecological roles. Each species has evolved its beak shape to optimize its ability to capture and consume the specific types of food sources available in their respective habitats.

Answer:

being able to manage your resources

Explanation:

Answer:

Resource management is the process of pre-planning, scheduling, and allocating your resources to maximize efficiency. Meaning that you are prepared, know how much of a resource you need, and you do not over use this resource. This is important because without resource management, we would quickly run out of needed resources and would have to find another way to get it. If there is not another way to get it, we would have to go without it for a long while.

Explanation:

Answer:

Cell Signaling

Structural Maintenance

Muscle contraction

Synthesis of DNA and RNA

Active Transport

Explanation:

Answer:

Cell Signaling

Structural Maintenance

Muscle contraction

Synthesis of DNA and RNA

Active Transport

Explanation:

I agree with the person above  me

Good luck!

Have a nice day!

Answer:

tRNA function at specific sites in the ribosome during translation which is a process that synthesizes a protein from MRNA molecule.

Explanation:

When a tRNA recognizes and binds to its corresponding codon in the ribosome, the tRNA transfers the appropriate amino acid to the end of the growing amino acid chain.

Option(B) Ureter is the correct option.

The ureter is a vital part of the urinary system in humans. It is a muscular tube that connects the kidneys to the urinary bladder. Each human has two ureters, one attached to each kidney, and they play a crucial role in the transportation of urine from the kidneys to the bladder.

The primary function of the ureter is to carry urine that is produced in the kidneys to the urinary bladder for storage before it is eliminated from the body through urination. The ureters accomplish this by using peristalsis, a wave-like muscular contraction, to propel urine along their length.

The ureters have a complex anatomical course. They originate from the renal pelvis, which is the funnel-shaped structure that collects urine from the kidneys. From there, they extend downward, crossing over the brim of the pelvis and passing behind the peritoneum, the membrane lining the abdominal cavity.

The efficient functioning of the ureters is essential for the proper elimination of waste products and maintenance of fluid balance in the body. Any obstruction or abnormality in the ureters can lead to conditions like kidney stones, urinary tract infections, or urinary reflux.

In summary, the ureters are muscular tubes that transport urine from the kidneys to the urinary bladder. They rely on peristaltic contractions to propel urine, and their structure and positioning help ensure unidirectional flow.

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Answer:

the reaction which produce oxygen gas on earth is the photosynthesis

Explanation:

reaction; 6co2+6h2o, in the presence of sunlight and chrolophyl it produces= c6h12o6 + 6o2

effect of overtime accumulation of o2: severe cases of oxy toxity can lead to cell damage and death in living things and also cause changes in lungs, which r potentially hrmful

Answer:

False

Explanation:

Take any of the well known predators: lions, birds, etc

Answer:

C

Explanation:

Kinetic Energy formula :

K.E. = 1/2mv²

=============================================================

Given :

⇒ mass = 0.17 kg (needed)

⇒ distance = 20 m (not needed)

⇒ velocity = 22 m/s (needed)

============================================================

Solving :

⇒ K.E. = 1/2 × 0.17 × (22)²

⇒ K.E. = 11 × 0.17 × 22

⇒ K.E. = 1.87 × 22

⇒ K.E. = 41.14 ≈ 41 J

The socioeconomic impacts of flooding are decreased purchasing and production power.

This is referred to as the process in which water overflows and submerges the land which is usually dry. It leads to different types of negative consequences such as disruption of the ecosystem etc.

This occurrence leads to the displacement of people from their homes as a result of the place not being conducive enough for living due to the presence of water and other types of organisms in the home and can be prevented by providing appropriate drainage channels.

It leads to erosion in agriculture and the crops are destroyed which will lead to it decreasing production power. The purchasing power is also reduced as it threatens the livelihood of a vast majority of the affected individual.

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Answer:

plantea

Explanation:

I'm not sure if that's correct

Answer:

1. Acetylcholine:  

- Muscarinic  

- Nicotinic  

- Associated with mushroom poison  

- Only receptor found in parasympathetic synapses  

- Associated with tobacco  

2. Norepinephrine:  

- alpha-Adrenergic  

- beta-Adrenergic

- Utilizes calcium ions as a second messenger

Explanation:

Acetylcholine (ACh) is a neurotransmitter that acts in both the central and peripheral nervous systems. Cholinergic receptors are receptors that bind to ACh. Muscarinic receptors are G protein-coupled receptors involved in the parasympathetic nervous system, which play roles in a variety of physiological responses (e.g., ACh binds to muscarinic receptors in the pathophysiology of asthma, leading to an increased mucus secretion). Nicotinic receptors bind to nicotine, while muscarinic receptors bind to muscarin (muscarine is a well-known neurotoxic alkaloid found in certain mushrooms). Nicotine receptors are also called cholinergic receptors since they also respond to ACh.  On the other hand, norepinephrine (NE) binds to alpha-adrenergic and beta-adrenergic receptors in different tissues. Both alpha-adrenergic and beta-adrenergic receptors are G-protein coupled receptors. Alpha-adrenergic receptors are involved in the regulation of blood pressure and generating a sympathetic 'fight and flight response'; whereas beta-adrenergic receptors modulate sympathetic responses in the cardiovascular, metabolic, and central nervous systems (NE activates the beta1-receptor). NE can induce Ca2+ release, which is a second messenger that controls a wide variety of cellular processes.

Answer and Explanation:

The corn plant shows 2 different characters of living by the color of the stock and the corn, and if the corn is big.

This may not be true for all things, so another 2 characteristics may be if the corn stock is growing tall, and that the corn stock does really good when given enough food (soil) and water.

#teamtrees #PAW (Plant And Water)

Answer:

Fossil fuels are formed when organic matter such as the remains of animals and plants are buried and sequestered deep underground. The energy stored in these once-living things, as well as the process of being buried, causes the organic material to undergo a series of chemical transformations.

Answer:

Fossil fuels are formed when organic matter such as the remains of animals and plants are buried and sequestered deep underground. The energy stored in these once-living things, as well as the process of being buried, causes the organic material to undergo a series of chemical transformations.

Explanation:

An evolutionist using the fossils will show that the organism changed because of inheritable traits that are present in Option 1, because evolution happens continuously and changes the individual.

The inheritable trait can be transmitted from the parents to the offspring, and evolution plays a major role here as the current-day organisms that have inherited the traits from their ancestors are different from those of their ancestors.

Hence, an evolutionist using the fossils will show that the organism changed because of inheritable traits that are present in Option 1, because evolution happens continuously and changes the individual.

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Answer:

Mitochondria and chloroplast contain DNA similar to bacterial DNA

Explanation:

Both mitochondria and chloroplast have their own DNA, which by then was known to contain the hereditary material of organisms. Mitochondrial DNA has a simple circular structure, which is structurally similar to bacteria DNA and is more or less the same size.

Your answer is correct!