Name at least four processes that are common to most living organisms
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Answer: Inherited genetic variations are caused by the process of meiosis.

Inherited genetic variations are caused by the process of meiosis. Meiosis can be described as a phenomenon in which parent cell divides into four new daughter cells each having half the number of chromosomes of the parent cell. During meiosis, the phenomenon of crossing over and homologous recombination occurs which cause inherited genetic variations.

Mutations can also cause genetic variations to arise. A mutation can be described as a change in the genetic sequence which can occur naturally or can be induced. The change in the genetic sequence causes variations to arise.

Explanation:

Answer:

C is the correct option.

Explanation:

Fragmentation is a form of asexual reproduction and is seen in annelids, fungi, cyanobacteria, sponges, and flatworms.

In Fragmentation, an organism divides itself into a number of fragments. It occurs when an organism completely breaks down independently irrespective of the other parts. Each one of these fragments matures into fully grown adults that are clones of the original organism.

Asexual reproduction usually involves the participation of a single parent alone can produce new offspring. The newly produced individual is genetically identical to one another and its parent. Both multicellular and unicellular organisms divide by fragmentation which is asexual reproduction.

Fragmentation is the most common method of reproduction in lower invertebrates. It is seen in many organisms including filamentous cyanobacteria, algae, lichens, molds, many plants, and animals such as flatworms,  annelid worms, sponges, and sea stars.

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The organisms that can reproduce by fragmentation are Option d Sponges and Sea anemones.

Fragmentation is a form of asexual reproduction in which an organism breaks into two or more fragments, and each fragment develops into a new individual. Both sponges and sea anemones are examples of organisms that exhibit this mode of reproduction.

Sponges are simple multicellular animals that lack true tissues and organs. They possess a porous body structure, and when a sponge is fragmented, each fragment has the potential to develop into a new sponge through regeneration. These fragments contain specialized cells called archaeocytes that can differentiate into various cell types required for the formation of a new sponge.

Sea anemones, on the other hand, are marine animals belonging to the phylum Cnidaria. They have a cylindrical body with tentacles surrounding their mouth. When a sea anemone is fragmented, each piece can regenerate into a complete individual. The process involves the differentiation of cells within the fragments, leading to the development of new tentacles, body parts, and eventually a mature sea anemone.

Both sponges and sea anemones have remarkable regenerative abilities, allowing them to reproduce through fragmentation. This form of asexual reproduction enables them to colonize new areas, expand their population, and adapt to changing environmental conditions. Therefore the correct option is D

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The Question was Incomplete, Find the full content below :

The organisms which can reproduce by fragmentation are:

(a) Corals and Sponges

(b) Corals and Spirogyra

(c) Sea anemone and Spirogyra

(d) Sponges and Sea anemones.

correct?

correct me if I'm wrong uh

"A chain of amino acids forms" happens as the fourth  step in making a protein (option D)

The building blocks for proteins are lengthy chains composing amino acids that bond through peptides to form what determines an organic entity's entire vital functionality.

Essential to every living organism's structural integrity and functionality, these large molecules differ in their particular three-dimensional structures based on differing constituent sequences made up entirely of smaller organic components.

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Answer:

3. Anatomy.

Explanation:

Anatomy is a branch of science which studies the physical structure of humans, animals, and other living beings. Anatomy is a part of biological studies. This field in the science is focussed on the shape, structure, and the relationship relevant to the living organisms.

Anatomy is further divided into two branches, namely, microscopic anatomy and macroscopic anatomy.

Therefore, the correct answer is option 3.

Answer:

Explanation:

Title: Observation of Liverworts (Hepatophyta)

Objective: To observe the living green "leafy" gametophyte stage of liverworts and compare them with moss.

Hypothesis: Liverworts and moss may share some similarities in structure, but there may be significant differences between them.

Observations:

Liverworts Structures:

Gametophyte: The main plant body of the liverwort, which is haploid (n) and produces gametes.

Sporophyte: A structure that grows from the gametophyte and produces spores. It is diploid (2n).

Rhizoides: Root-like structures that anchor the gametophyte to the substrate and absorb water and nutrients.

Leaf-like structures: Flattened structures that resemble leaves but do not have true veins or stomata.

Thallus: The entire plant body of the gametophyte, which lacks true stems or roots.

Observations of different structures in liverworts:

Sporophyte: Small and inconspicuous, growing from the gametophyte.

Gametophore: The stem-like structure that supports the gametophyte and sporophyte.

Rhizoides: Thread-like structures that attach the gametophyte to the substrate and absorb water and nutrients.

Thallus: The plant body of the gametophyte that lacks true stems or roots.

Comparison between liverworts and moss:

Similarities:

Both are non-vascular plants.

Both have a haploid (n) gametophyte and a diploid (2n) sporophyte stage.

Both reproduce by spores and require water for fertilization.

Differences:

Liverworts have leaf-like structures and a thallus, while mosses have true leaves and stems.

Liverwort sporophytes are small and inconspicuous, while moss sporophytes are tall and conspicuous.

Liverworts have rhizoides, while mosses have true roots.

The Nucleic acids that we have are DNA and RNA.

This question is incomplete but I will try to give you a general idea about the Nucleic acids.

Nucleic acids are large biomolecules that play a crucial role in the storage and transfer of genetic information in cells. There are two types of nucleic acids: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).

Both DNA and RNA are essential for the functioning of cells, and their structure and function have been studied extensively by scientists, leading to a greater understanding of genetics, evolution, and the molecular basis of life.

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The picture indicates the structure of RNA because it has URACIL.

Ribonucleic acid (RNA) is a nucleic acid that is present in all living cells that has similarities in structure to DNA. Unlike DNA, RNA is often single-stranded. An RNA molecule is made of alternating phosphate groups and sugar ribose, as compared to the deoxyribose that is found in DNA. Uracil is the nitrogenous base that is present in RNA.

It is made up of nucleotides which are ribose sugars that are attached to nitrogenous bases and phosphate groups. Nitrogenous bases such as adenine, guanine, uracil, and cytosine are present in them. RNA is mostly present in single-stranded, but there are special RNA viruses that have double-stranded.

So we can conclude that option C is the correct answer.

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One of the  evidence that  supports the importance of the ocean in the water cycle is evaporation.

The ocean plays a critical role in the water cycle, and there is a range of evidence to support this statement, including:

In summary, the ocean is a critical component of the water cycle, and its role in the cycle is supported by numerous lines of evidence. Without the ocean, the water cycle would be greatly disrupted, with potentially catastrophic consequences for the earth's ecosystems and climate.

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Answer:

because blood is composed of RBCs, WBCs, Plasma, and platelets. It is sticky, opaque liquid, metallic taste, pH 7.35-7.45. Considered a connective tissue because it connects all of the body systems together.

Explanation:

Answer:

The correct answer is - the brown allele is not independent from the black allele and disappears in the F1 generation.

Explanation:

IN this question it is given that there is a cross between pure black and pure brown breed and the F1 generation has all-black coat offspring and their self cross produced 961 black and 317 brown.

The black coat offspring is three times than the brown coat offspring in F2 generation which means they have 3:1 ratio that comes in the self cross of heterozygous only there for the F1 generation black coat offspring have the heterozygous genotype for the trait,

Thus, the brown allele is not independent of the black allele and disappears in the F1 generation.

Answer:

the top is the crust and the bottom is the triangle ofc

Explanation:

bc ofc

Answer:

When a child is formed, they get half of their genes or traits from each parent. These genes are like tiny sets of instructions that determine things like a child's hair color, eye color, and height. Each parent contributes their genes through their sperm or egg. For example, if a parent has brown eyes, they will contribute a gene for brown eyes to their child. If the other parent has blue eyes, they will contribute a gene for blue eyes to the child.

However, not every trait from each parent will appear in the child. Some traits are dominant, which means they will show up even if only one parent contributes that gene. Other traits are recessive, which means they will only show up if both parents contribute that gene. And sometimes, traits can be a combination of both parents' genes.

In terms of human reproduction, we are the result of sexual reproduction. This means that an egg from a female and a sperm from a male combine to form a zygote, which eventually develops into a fetus and then a baby. Each parent contributes half of their genetic material to the child, resulting in a unique combination of traits.

Explanation:

Sana makatulong

A child inherits traits from both parents through a process known as genetic inheritance. Humans have two sets of chromosomes, one set inherited from the mother and one from the father. Each set contains genes that determine various traits such as physical characteristics, eye color, hair type, and many others.

Each parent contributes their traits to the child through the genes on their respective chromosomes. Traits are typically determined by the combination of alleles. For example, if the mother has a gene for brown eyes and the father has a gene for blue eyes, the child may inherit one allele for brown eyes and one allele for blue eyes.

During reproduction, the parents' genetic material combines through the process of fertilization. The father's sperm carries genetic information in the form of chromosomes, while the mother's egg also contains chromosomes. When the sperm fertilizes the egg, their genetic material combines to form a unique set of chromosomes in the resulting zygote.

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Answer: 81,362,880,000,000‬ kilometres

Explanation:

A Light year refers to the distance that light travels in a year.

Light travels at a rate of 300,000 km/s.

This means that in a year it travels;

= 300,000 * 60 seconds * 60 minutes * 24 hours * 365 days

= 9,460,800,000,000‬ km in a year

Sirius A is therefore;

= 9,460,800,000,000‬ * 8.6

= 81,362,880,000,000‬ kilometres from Earth.

Answer:

C

Explanation:

because when tectonic plates crash into each other they can cause tsunamis, and earthquakes.

Hope it helps!

Motion energy refers to the energy related to an object's movement. When an object is in motion, it possesses kinetic energy, which is a form of motion energy.

The matching will be:

motion energy = energy related to an object's movement

chemical energy = stored energy related to positions of atoms within molecules

thermal energy = energy of motion of particles in a substance

nuclear energy = energy released when a nucleus splits or combines

gravitational potential energy = energy related to height

sound energy = energy generated by vibration of a string

Chemical energy is stored energy that is related to the positions of atoms within molecules. It is the energy that can be released or absorbed during a chemical reaction. When chemical bonds are formed or broken, energy is either released (exothermic reaction) or absorbed (endothermic reaction) in the process.

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First of all, the problem says that the membrane is selectively permeable.

Permeable means that it allows molecules to pass from one side to another (and vice-versa).

On the other hand, we have the concept of selectively, which means that not all types of molecules are allowed to cross through the membrane, but in this case, it also says that the membrane it's permeable for both molecules.

So, in this case:

27) Yes, in order to reach the equilibrium, the molecules will move, until there is an equal amount of each of them on both sides of the membrane.

28) The important thing here is not how many molecules of each type you draw on each side, but the amount of them should be the same on both sides. Take into count that we are not having in count the interaction between the molecules either.

29) Yes the will, because of the permeable property of the membrane. This is the reason why this equilibrium it's called a dynamic equilibrium.

Answer:

oPtion C is correct.

Explanation:

Scientific knowledge is open to change because it is based on the systematic and ongoing process of observation, experimentation, and analysis. As new evidence becomes available, scientists reassess their theories and hypotheses to align with the most accurate and current understanding of the subject.

In the case of Giovanni Schiaparelli's observations of Mars, his initial interpretation of the lines on the planet's surface as "channels" was later translated into English as "canals." Percival Lowell further popularized this idea by drawing maps depicting a fictional Martian civilization with a network of canals.

However, as technology improved and more detailed observations of Mars were made with better telescopes, it became clear that there were no actual canals on the planet. The new evidence did not support the earlier interpretations of observations, indicating that the existence of Martian canals was a misinterpretation or a product of human imagination.

This example demonstrates how scientific knowledge can evolve and change based on new evidence that challenges or contradicts previous ideas. It highlights the importance of critical evaluation, rigorous experimentation, and openness to revising theories in the face of new information.

Answer:

1. A the carbohydrates are broken into glucose excess gets stored in the liver as glycogen

Answer:

A.) They are stored as fat.

Explanation:

Answer:

of Allergies

Drug Allergy.

Food Allergy.

Insect Allergy.

Latex Allergy.

Mold Allergy.

Pet Allergy.

Pollen Allergy.

Explanation:

Answer:

food, flowers, touch, dirt etc/

Explanation:

Answer:

option d is the correct answer

Salivary gland in humans ;

1) Sublingual glands

2) Submandibular glands

3) Parotid glands

Answer:

One salivary gland in humans is Parotid glands.

Hope its helpful :-)

Answer: true

Explanation:

Once fertilized, the egg is called a zygote. Fertilization is not complete, however, until the two haploid nuclei (called pronuclei) have come together and combined their chromosomes into a single diploid nucleus.

Answer:

Testicular self-exam is important because it helps detect abnormalities, especially cancer. Physicians don't check the testicles as much, so it is important to self-exam more often. Testicular cancer is more likely to be found if checked monthly. Besides cancer, routine exams create a feel for the characteristics of the testicles and would be easier to detect a sudden change.

Explanation:

Answer:

im not sure

Explanation:

there is no photo

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¿What is the Kingdom Plantae?

It is one that is composed of multicellular, eukaryotic, autotrophic, anaerobic and immobile organisms whose reproduction is sexual or asexual.

They are classified in :-

I hope I've helped : )

Answer:

It is one that is composed of multicellular, eukaryotic, autotrophic, anaerobic and immobile organisms whose reproduction is sexual or asexual.