the type of immunity where antibodies are not produced but are given either artificially or acquired by a baby during pregnancy is called ?

The portion of the pancreas is a characteristic of the endocrine system. This is because it plays a vital role in regulating the blood sugar level of the body. The portion of the pancreas also produces insulin, which is a hormone responsible for regulating blood sugar.

The immune and lymphatic system defend the body against pathogens, while the circulatory system contains the heart, blood vessels, and blood that transports enzymes.

The excretory system is responsible for waste elimination. Finally, the digestive system is responsible for structures involved in ingestion, digestion, absorption, and transport of food materials.

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mass :kg

gravity: m/s

force: n

work/energy: J

power: W

Answer:

mass :kg

gravity: m/s

force: n

work/energy: J

power: W

Explanation:

Despite having the same genome, the cells in the body differentiate differently because the expression of genes is affected by the surrounding signals a cell receives. Thus, the expression of a gene may be turned on at one location and it may remain off at another location.

Genome is the sum total of all the genes present inside an organism. Genes are the basic hereditary factors that code for each and every characteristic inside the body. For example, the human genome is composed of 23 pairs of chromosomes.

Gene expression is the process of forming the functional forms of genes like the RNAs or proteins. This includes the various processes like replication, transcriptions and translation.

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The stent holds open the narrowed arteries to allow adequate blood to flow to the heart.

The statement which is true regarding asexual reproduction is the last one, which says that the offspring are clones of the parents. This is because this process only takes part the genetic pool from one parent, not from two, as occurs in sexual reproduction. Here (in asexual reproduction), the process that occurs is mitosis, that is a replication of the parent information, and it's found in organisms like bacteria (by binary fission), and only in a few animals, as geckos, that reproduce themselves without a mate by parthenogenesis.

Answer:

Hey mate......

Explanation:

This is ur answer.....

Hope it helps!

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Answer:

I believe the correct answer is A.

Explanation:

Answer:

the answer is A

Explanation:

In prophase I, tetrads of homologous chromosomes form and crossing over occurs" is the statement among the following statements that best describes the major difference between prophase I of meiosis and prophase of mitosis. The correct option among all the options that are given in the question is option "A".

The test used to check for the level of ketones in urine involves combining urine with sodium nitroprusside. If ketones are present in the urine, a substance with a purple color is produced.

This is an example of the specific chemical reaction that occurs when acetone and acetoacetate are present in the urine.The presence of ketones in urine can indicate a serious condition called ketoacidosis. Ketones are produced when the body uses fat for energy instead of glucose. This can occur in people with diabetes who have high blood glucose levels and are not producing enough insulin. It can also occur in people who are fasting, following a very low-carbohydrate diet, or have a prolonged illness or infection.The ketone test is important in the management of diabetes, as high levels of ketones can be life-threatening.

In addition to monitoring blood glucose levels, people with diabetes are often advised to check their urine for ketones when they are ill, experiencing stress, or their blood glucose levels are elevated. By detecting ketones early, appropriate treatment can be initiated to prevent complications.

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Answer:

A nucleotide is the basic building block of nucleic acids.

Explanation:

RNA and DNA are polymers made of long chains of nucleotides. A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen-containing base.

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Answer:

Light receptors within the eye

Explanation:

The increasing pollution activity and the various levels of the increasing concentration that is being increased are the parts of the imbalance in the homeostasis.

It first starts by the fishing where the activity is taking a hold on the balance in the fishes and the other organisms that are taking place in the water bodies.

The increasing carbon dioxide concentration is taking a dig on the oceans where the water bodies are becoming acidic and the habitat of the marine animals are getting impacted in the process.

Humans are making a big impact on the life of the marine animals by disoposing off their waste and the sewage through the water bodies directly into the oceans which is increasing the toxicity.

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Ectoderm: central nervous system, peripheral nervous system, epidermis Mesoderm: notochord, kidney tubule cells, skeletal muscle Endoderm: red blood cells, thyroid follicular cells, lung alveolar cells, pancreatic acinar cells

I'll list the germ layers and their corresponding tissues or structures:
Ectoderm:
- Central nervous system
- Epidermis
- Peripheral nervous system
Mesoderm:
- Red blood cells
- Notochord
- Kidney tubule cells
- Skeletal muscle

Endoderm:
- Thyroid follicular cells
- Lung alveolar cells
- Pancreatic acinar cells

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The most likely explanation for the lack of a filter blocking the passage of alcohol between the maternal and fetal circulations in humans is that: there has not been enough time to evolve such a barrier.

The placenta is an organ that is formed during pregnancy and is responsible for providing nutrients and oxygen to the developing fetus while also eliminating waste products. It also acts as a barrier between the maternal and fetal circulations, protecting the developing fetus from potentially harmful substances in the maternal bloodstream.

However, the placenta is not completely impermeable, and some substances, including alcohol, can cross the placental barrier and enter the fetal circulation. The amount of alcohol that reaches the fetus depends on a number of factors, including the amount of alcohol consumed by the mother, the timing of consumption, and individual variations in metabolism and other factors.

Alcohol is a known teratogen, meaning that it can cause abnormalities in fetal development. Because of this, it is recommended that pregnant women avoid alcohol consumption whenever possible. However, the exact reasons for why there is a lack of a filter blocking the passage of alcohol between the maternal and fetal circulations in humans are not fully understood.

One possibility is that there has not been enough time for humans to evolve such a barrier, as alcohol consumption is a relatively recent phenomenon in human history. Another possibility is that such a barrier would also block important molecules that need to be passed to the fetus, making it difficult to develop a filter that could selectively allow certain substances to pass through while blocking others.

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Most scientists believe that all life on Earth had a single source due to the remarkable adaptability and genetic similarities of all known organisms, and the complexity of the biochemical processes involved in the origin of life.

The fact that all life on Earth shares a common genetic code and is derived from a single source is not evidence that the Earth is not perfect for life. Rather, it is an indication of the remarkable adaptability and diversity of life that has evolved from a common ancestor.

The reason why most scientists believe that all life on Earth had a single source is that the genetic code and basic biochemistry of all known organisms share many similarities, suggesting a common ancestry. It is also believed that the origin of life on Earth was a rare event that required specific environmental conditions and chemical reactions to occur.

While it is possible that life could have originated multiple times on Earth, it is unlikely given the complexity of the biochemical processes involved in the formation of life. The origin of life is still a subject of scientific inquiry and debate, and while there are many theories, there is no conclusive evidence to support any one hypothesis.

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The principle of independent assortment states that the inheritance pattern of one trait does not affect the inheritance pattern of another trait.

During the process of meiosis, independent sorting takes place. The chromosome is cut in half and is called haploid. To understand the law of independent assortment, it is very important to understand the law of separability. Two different genes are classified in different gametic cells.

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Answer: its a

Explanation:

Cancer is a disease characterized by uncontrolled cell division and tissue invasion (due to DNA alterations).

Cancer is fundamentally a mitotic illness in which the cancer cell ignores or overrides the usual mitotic "checkpoints" that control the process. When a single cell undergoes a transformation into a cancer cell, cancer is said to have started.

Every cell's genes play a significant role in controlling mitosis. This control may not always work. If it only affects one cell, it has the potential to spread and create other uncontrolled cells through self-replication. They are malignant cells.

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2(a) Forms of energy with examples:Energy is the capability to do work. There are different forms of energy with relevant examples. They are listed below. 1. Thermal Energy: Thermal energy is the energy produced by heat. It is the sum of kinetic energy in the molecules of an object.

Example: fire and geothermal energy 2. Electrical Energy: Electrical energy is a type of energy that is transmitted by electricity. Example: Batteries, lightning 3. Kinetic Energy: Kinetic energy is the energy possessed by a moving object. Example: Windmill, moving cars 4. Potential Energy: Potential energy is the energy stored in an object. Example: a stretched rubber band, water in a dam 5. Chemical Energy: Chemical energy is the energy released from the chemical reaction between substances. Example: Wood burning, gasoline combustion 2(b) Explanation of the term Biotechnology and differentiation between Green and Blue Biotechnology Biotechnology is a combination of biology and technology.

It is the use of living organisms or their products to modify or create useful products, improve existing products, and develop new treatments and cures for diseases.Biotechnology is divided into two main branches:Green Biotechnology and Blue Biotechnology. The following is an explanation of the differentiation between Green and Blue Biotechnology:Green Biotechnology:Green biotechnology refers to the biotechnology of plants. It is concerned with the use of biotechnology in plant breeding, genetic engineering, and agriculture. Example: Genetically modified crops, plant tissue culture.Blue Biotechnology:Blue biotechnology is a branch of biotechnology that focuses on marine and aquatic applications. Blue biotechnology is concerned with the use of marine organisms and products in industry, medicine, and agriculture. Example: Aquaculture, marine biotechnology.

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Explanation:

Water transport and adhesion to surfaces in some mosses and liverworts.

Hope this helps :)

Answer:

Rhizoids are a structure in plants and fungi that functions like a root in support or absorption.

Explanation:

Answer:

All living things such as Humans, plants and mushrooms respire, reproduce, locomote, grow, die and decompose.

Explanation:

Since Humans, plants and mushrooms are all living things (biotic) they have following common characteristics -

a) They all are made up of cells which divide by the process of either mitosis or meiosis to grow and reproduce.

b) They all show locomotion in some way.

c) They all have certain vital tissues that are nothing but the specified cells that helps performs specific function.

d) They all die and are decomposed by microbes.

e) They all respire and need nutrition for their survival.

Answer:

Global soil resources contain more organic carbon than the world's atmosphere and all of its plants combined.

Explanation:

Hope this helps sorry if incorrect

Answer:

All seeds do not germinate to form new plant because some are not fulfilled with the appropriate amount of nutrients.

Explanation:

A new seed does not germinate in spite of a suitable environment due to a lack of enough nutrients in the soil, a seed may undergo the dormant stage, and too much or little water in the soil.

Germination may be defined as a process through which a seed grows into a seedling.  

A lack of nutrients does not deliver enough energy to seed for germination. If the soil has too little water or no water, a seed remains dormant throughout, while if it has too high water, then the seed becomes susceptible to infections.

Under all the above conditions, a seed will germinate into a seedling in spite of a suitable environment.

Therefore, it is well described above.

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Answer:

A. Mid ocean ridge

Explanation:

A divergent plate boundary often forms a mountain chain known as a ridge. This feature forms as magma escapes into the space between the spreading tectonic plates.

The mid-ocean ridge, rift valley is a geological feature can be created by a divergent boundary. Therefore option A is correct.

A divergent boundary is a type of tectonic plate boundary where two lithospheric plates move away from each other. This movement creates a gap or space between the plates, allowing magma from the asthenosphere (the partially molten layer of the Earth's mantle) to rise and fill the void.

As the magma reaches the surface, it cools and solidifies, forming new crust. This process occurs primarily in the oceanic lithosphere, resulting in the formation of mid-ocean ridges.

Mid-ocean ridges are underwater mountain ranges that run along the seafloor and span across the Earth's oceans.

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The chlorophyll to phosphorus ratio is a measure used in aquatic ecology to assess the nutrient status and potential for eutrophication in water bodies.

This ratio is important in understanding eutrophication because phosphorus is a key nutrient that can fuel excessive growth of algae and aquatic plants. Understanding the chlorophyll to phosphorus ratio in the Australian environment is particularly important because of the diverse aquatic ecosystems in that nation and the difficulties caused by nutrient pollution.

Australia has various types of water bodies, including rivers, lakes, estuaries, and coastal areas, which are vulnerable to eutrophication. Understanding this ratio in the Australian context can help inform targeted interventions and conservation efforts to maintain ecological health and water quality.

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----- The complete question is:

What is the chlorophyll a to phosphorus ratio? Why is it important in understanding eutrophication and discuss its application to the Australian environment? -----

The first vestiges of eyes in the embryo are called d. optic vesicles.

During embryonic development, the first vestiges of eyes are formed as outgrowths from the developing brain known as optic vesicles.

The optic vesicles arise from the neural tube and give rise to various structures of the eye. These structures include the retina, lens, and optic nerve.

The optic vesicles eventually invaginate to form the optic cups, which further differentiate into different layers of the retina. The optic discs, on the other hand, refer to the region where the optic nerve exits the eye and is not specifically related to the initial development of the eyes.

Therefore, the correct answer is d. optic vesicles.

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