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Answer:

The answer is protein.

Explanation:

Answer:

many zoos, aquariums, and other institutions are involved in captive-breeding programs that try to breed endangered or threatened animals

Explanation:

Answer:

Captive breeding is the process of breeding animals in controlled environments within well-defined settings, such as wildlife reserves, zoos and other commercial and noncommercial conservation facilities.

Explanation:

Answer:

the answer is nerve cells

Answer:

rex was covered in a coat of downy feathers

Explanation:

Some mammals did have hair but T. Rex mostly had feathers

Answer:

No, they did not have hair

Answer: I think the answer is B

Explanation:

Answer:

b

Explanation:

mostly 99% of all species die

The hormones affected by oophorectomy are estrogen and progesterone.

The gland affected by oophorectomy is the pituitary gland.

Explanation:

Explanation:

By osmosis, due to the difference in osmotic pressure on either side of the membrane, the water passes through the membrane, which means that the water moves from high osmotic pressure / concentration regions to low pressure / concentration regions to a stable state. Thus, water moves from hypotonic regions (low solute concentration) to hypertonic regions (high solute concentration).

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In biology, osmosis is the diffusion of water across a semipermeable membrane. A hypertonic solution has a higher solute concentration, causing water to move into the bag. A hypotonic solution has a lower solute concentration, causing water to move out of the bag.

In biology, osmosis refers to the diffusion of water across a semipermeable membrane from an area of lower solute concentration to an area of higher solute concentration. When comparing the solution inside the dialysis bag and the solution outside the bag, we can determine their osmotic relationships.

A hypertonic solution has a higher solute concentration compared to the solution it is being compared to. If the solution inside the dialysis bag has a higher solute concentration than the outside solution, it is hypertonic. In this case, water will move from the outside solution into the dialysis bag, causing the bag to swell or gain water.

A hypotonic solution has a lower solute concentration compared to the solution it is being compared to. If the solution inside the dialysis bag has a lower solute concentration than the outside solution, it is hypotonic. In this case, water will move from inside the dialysis bag to the outside solution, causing the bag to shrink or lose water.

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In multicellular organisms, life begins as a single cell until fertilization occurs.

Explanation:

In a multicellular organism, the gametes, that is haploid (single-celled n) eggs (female) and sperm cells (male) are fused by fertilization to form the zygote (2n). The zygote then undergoes several cycles of divisions to become an embryo and then foetus. After gestation, a full multicellular organism is formed.

All multicellular organism are started from single cells or germ cells from each parent.

Answer:

When two or more different tissues group together to perform a function is called Multi cellular organism.

Explanation:

An organ is the level of biological organization formed when two or more different tissues group together to accomplish a specific function. Organs like the stomach, heart, or brain are made up of tissues such as muscle and connective tissues, and these organs make up part of organ systems.

The level of organization that is formed from two or more different tissues that group together to perform a specific function is known as an organ. In multicellular organisms like humans, different tissues such as muscle tissue, connective tissue, and nervous tissue work in harmony to form organs, for example, the stomach, heart, or brain. These organs then collectively make up various organ systems, such as the digestive system, circulatory system, or nervous system, which contribute to the functioning of a living organism.

Understanding the structure and function of cells is crucial to comprehend the roles of tissues, and this knowledge, in turn, helps grasp how organs perform their functions. The study of epithelial and connective tissues provides insight into the complex interactions that enable organs to operate efficiently within living organisms.

Answer:

D)The total mass of the reactants is equal to the total mass of the products.

Explanation:

Law of conservation of energy states that matter can neither be created nor be destroyed but it can change from one form to another.

In a chemical reaction, the total mass of the reactants and the total mass of products remains the same. The same amount of matter ends up in the product as was the total mass in the reactants. The conservation of mass will be depicted in a balanced chemical equation.

The correct answer is D) The total mass of the reactants is equal to the total mass of the products.

The law of conservation of matter states that matter cannot be created or destroyed in an isolated system. This means that the mass of the reactants at the beginning of a chemical reaction must be equal to the mass of the products at the end of the reaction. The law does not require that the same number of reactant particles, the same total number of chemical bonds, or the same number of molecules be present in the reactants and products. Instead, it is the total mass that remains constant.

For example, consider the chemical reaction where 2 hydrogen gas molecules (H2) react with 1 oxygen gas molecule (O2) to form 2 water molecules (H2O). The balanced chemical equation is:

[tex]\[ 2H_2 + O_2 \rightarrow 2H_2O \][/tex]

In this reaction, 4 hydrogen atoms (2 molecules of H2) and 2 oxygen atoms (1 molecule of O2) react to form 2 water molecules, each containing 2 hydrogen atoms and 1 oxygen atom. Although the number of molecules and the number of chemical bonds change during the reaction, the total mass of the reactants (4 hydrogen atoms + 2 oxygen atoms) is equal to the total mass of the products (2 water molecules, each containing 2 hydrogen atoms and 1 oxygen atom).

Therefore, the conservation of mass is upheld, as the mass of the reactants is equal to the mass of the products, which is the essence of the law of conservation of matter.

Answer: The right answer is a. cytoplasm; nucleoplasm

Explanation:

The plasma membrane separates the cytoplasm from the neucloplasm

A prediction is a forecast based on current knowledge or evidence, and among the choices, 'Your best guess as to what will happen next in a text' is the best description. It's related to a hypothesis but more specific, often taking the form of an if-then statement in scientific contexts. The correct answer to the student's question is option (A).

The best description of a prediction from the options provided is A. Your best guess as to what will happen next in a text. A prediction is essentially a forecast based on current knowledge or evidence. It can take the form of an if-then statement, which is often used in scientific contexts, such as If the student turns on the air conditioning, then the classroom will no longer be too warm. This is because a scientific prediction generally follows the logical structure of an hypothesis testing: if the condition A is true, then result B is expected to follow. However, in the context of reading comprehension, it is more about anticipating future events or information in a text, often without a strict if-then structure.

While hypotheses and predictions are related, a hypothesis is more of an informed speculation that forms the basis of an investigation, whereas a prediction is a more specific guess that can result from a hypothesis and is typically used to suggest what the findings of the investigation will be.

Answer:

Benjamin Franklin

Explanation:

REMEMBER THE KEY ON THE END OF THE KITE!

Final answer:

Benjamin Franklin was the first person to discover that lightning is a form of electricity through his kite experiment, influencing future scientific research in the field of electricity.

Explanation:

The first person to discover that lightning is a form of electricity was American polymath Benjamin Franklin. Through his experiment involving flying a kite during a thunderstorm, Franklin demonstrated that sparks drawn from a key tied to the kite string were similar to those produced by static electricity. This illustrated the direct connection between the grand scale of an electrical storm and electricity at a more human scale, contributing significantly to the understanding of electromagnetic forces. Franklin's innovative work initiated widespread exploration in the field of electricity, influencing other scientists like Luigi Galvani, who experimented with static electricity in frog muscles, and Alessandro Volta, who developed the first electric battery.

Bacteria are smaller than human cells. So the statement is false.

Bacteria and archaea are classified under the domain prokarya. They are unicellular organisms found in a wide range of extreme environments.

Bacteria are known to exhibit a variety of shapes and sizes. Bacteria also vary in their way of an arrangement with their colony of bacterial cells.

Bacteria are mostly microscopic but some bacteria, large enough to be visible by the unaided eye have been observed. The size of bacteria generally ranges from 0.2 to 2.0 micrometers. The size of bacteria is a very important factor in their survival.

Bacteria are able to thrive in a variety of microenvironments due to their small size. The size of bacteria also contributes to their parasitic nature.

The high surface area to volume ratio allows them to take as many nutrients as possible.

Therefore, bacterial cells are smaller than human cells and the statement is false.

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The primary consumers require 10,000 kcal of energy to support the secondary consumer level that has 1000 kcal, based on the 10 percent energy transfer efficiency between trophic levels.

If the secondary consumer level of a trophic pyramid has 1000 kcal of energy, the amount of energy required by the primary consumers to support this pyramid is significantly higher due to the energy lost at each trophic level. According to ecological principles and the research conducted by Howard T. Odum in the Silver Springs ecosystem, there is a roughly 10 percent efficiency in energy transfer between trophic levels. Therefore, if the secondary consumers have 1000 kcal, then the primary consumers need 10 times that amount to maintain that level of energy, which is 10,000 kcal.

Hence, the correct answer is c. 10,000 kcal.

Answer:

C) Natural selection..

Final answer:

Natural Selection is the key factor in biological resistance, influencing the adaptation and survival of populations over time.

Explanation:

Natural Selection plays the greatest role in biological resistance among the given options. Natural selection is the process by which specific traits that aid in survival are favored and passed on to future generations, leading to the adaptation of a population to its environment.

Genetic drift and gradualism also influence evolution but do not play as significant a role in biological resistance as natural selection does. Genetic drift is a random fluctuation in allele frequencies, while gradualism pertains to a slow, steady change over time.

For example: In a population of bacteria exposed to antibiotics, individuals with genetic variations that confer resistance to the antibiotic will survive and reproduce, passing on this resistance to their offspring. Over time, the population will become more resistant due to natural selection.

Answer with Explanation:

The Miocene epoch was deeply characterized by seasonal conditions, such as having more colder winters in the northern areas.

In the late Miocene, open vegetation system expanded. These included grasslands, woodlands and shrublands. As a result, more primates inhabited the area. Several habitats became diverse from each other, thus allowing the species to adapt, including their locomotion. For example, the species who used to live on trees, turn towards living on land (terrestrial life). Certain animals also came about such as pigs, giraffes, monkeys, etc. Scavenging hominins also scattered. When it comes to hominins, a major type of locomotion evolved called "bipedalism." This allowed the hominins to walk using the lower limbs (two feet).

Answer:

The Miocene epoch was deeply characterized by seasonal conditions, such as having more colder winters in the northern areas. In the late Miocene, the open vegetation system expanded. ... As a result, more primates inhabited the area.

Explanation:

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Potato tuber cells do not contain chloroplasts as they are grown inside the soil so no sunlight is required so no chloroplasts.

Explanation:

Instead of chloroplasts potato tubers consists of amyloplasts. In all plant cells, plastids are always there. They are required as it is the place where amino acids and fatty acids are made. Amyloplasts are the place of starch synthesis in non-green plants.

If you place the potato tuber in sunlight the amyloplast may get converted to chloroplasts.

A hand-held SPAD-502 plus chlorophyll meter device is to check the chloroplasts.  

Answer: Photosynthesis is process of green plants and organisms use sun or UV light to synthesize from CO2 (carbon dioxide) and water to make food. Usually producing green pigment called chlorophyll (what makes leaves green) and oxygen as a byproduct which they do not need.

Explanation:

Photosynthesis is the process by which a plant uses carbon dioxide, water, sunlight, and minerals in the soil to create food.

(in the simplest matter)

Answer:

in case of an accident you wont get it on your bare skin and hand.

Explanation:

you dont want to get hurt.

Answer:

Protection

Explanation:

gloves protect your hands from chemicals if they spill

Explanation:

 Water-soluble vitamins (which dissolve in water), such as vitamin C and the B vitamins, are not stored in the body and must be replaced every day.

Answer:

Small amounts of vitamin A, vitamin D, vitamin E and vitamin K are needed to maintain good health. Fat-soluble vitamins will not be lost when the foods that contain them are cooked. The body does not need these vitamins every day and stores them in the liver and adipose (fat) tissue when not used.

Only beach nourishment uses a hard structure to manage erosion.

Beach nourishment refers to the addition of sand on the beach to reduce the erosion effect by water currents.

Vegetation management is the (re)plantation of plants to reduce the erosion effect on beaches caused by waves.

In the statements given above, the addition of hard structure doesn't primarily means beach nourishment, likewise, vegetation management doesn't replace the sand on the beach but rather prevents sand erosion. However, vegetation management brings in plants that hold the sand, especially on dunes. Floods cannot be controlled by beach nourishment but with the help of plants, their impact can be minimized.

Therefore, the correct answer is option

3. Only beach nourishment uses a hard structure to manage erosion.

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Answer:

A

Explanation:

Biomass=Bad

Decreasing the amount of soil and decreasing the amount of biomass decrease the amount of atmospheric carbon dioxide. Hence option A is correct.

When animals breathe or decay (decompose), carbonate rocks are worn, forest fires happen, and volcanoes erupt, carbon dioxide is naturally released into the atmosphere. Human activities such as the combustion of fossil fuels, the destruction of forests, and the manufacture of cement all contribute to the atmospheric addition of carbon dioxide.

The primary cause of the rise in carbon dioxide concentrations is the use of fossil fuels by humans as a source of energy.

We are adding carbon to the atmosphere in only a few hundred years that plants removed from the atmosphere through photosynthesis over many millions of years in the form of fossil fuels like coal and oil. Hence, option A is correct.

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Explanation:

F. Ribosome

Around the endoplasmic reticulum, proteins are transported.  The Endoplasmic Reticulum is a cytoplasmic membrane network. This continuous method not only raises the surface area within the cell but also conducts protein folding, synthesis, and transport.

Further Explanation:

Free ribosomes synthesize most proteins that operate in the cytosol (such as actin) or nucleus (such as DNA polymerase). Proteins that act within the endomembrane system (such as lysosomal enzymes) or those that are intended for cell secretion (such as insulin) are synthesized in the rough endoplasmic reticulum ER by bonded ribosomEs.

The rest of the ER that doesn't include ribosomes is called the smooth ER, and may contain lipids, enzymes, and other proteins. The first amino acids in the that polypeptide chain serve as a signal sequence as a protein bound for the endomembrane system is being synthesized by a ribosome. The signal sequence ensures that the ribosome binds to the ER's outer membrane and the protein gets into the ER lumen.

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Answer:

The Greeks believed in the geocentric model of the universe.

According to this model, the Earth was present in the center whereas the Sun, moon, other planets etc revolved around it. According to Plato, the Earth was spherical in shape and it did not move. Greek philosophers, such as Aristotle and Plato, believed the Earth to be the center of the universe. All other heavenly bodies orbited around the Earth according to the Greek philosophers.

Answer:

"A model that shows global systems, the processes that operate within each system and the ways those systems and processes interact."

Explanation:

In the global system mainly four types of models interact or co-ordinate between each other. When we take an example of the ecosystem, these four models can be predation, parasitism and herbivore. Interaction takes place in such a way that one model gets the benefits while the other one gets affected. But when talk about mutualism, both of them gets benefited from the interaction. The basis of the global system property is firstly made by the species interaction.

Answer and Explanation:

root vegetables, such as carrots, are classified as what type of of root system? taproot system.Taproot system is one of the three major types of rooting systems found in plants including adventitious root system and fibrous root system. Taproots arise from the radicle of a germinating embryo. The radicle of many plant species dies soon after maturation and, hence, the taproot gets converted into the fibrous root system in the later stages.

Answer: d Taproot system

Explanation: