The thee parts of the Cell Theory are

Answer:

B. point

Explanation:

The type of mutation that causes sickle cell anemia is a point mutation. Specifically, it is a single nucleotide substitution in which adenine is replaced by thymine in the beta-globin gene, resulting in a change from glutamic acid to valine in the hemoglobin protein. This mutation causes the hemoglobin molecules to stick together and form stiff, sickle-shaped red blood cells, which can lead to various health problems.

Tetracycline is an antibiotic that inhibits bacterial protein synthesis without killing the bacterial cell. This antibiotic can be classified as tetracycline antibiotics

Proteins are made of amino acids, and the sequence of these determine how the protein will fold up and take shape, which ultimately defines it’s function. Amino acids are linked together in a specific sequence by peptide bonds.

The building blocks of proteins are called amino acids. There are 20 different types of amino acids, each with its own unique properties, and they are joined together to form a polypeptide chain. The order in which these amino acids are arranged is called the protein's primary structure, and it determines the protein's shape, function, and activity. The sequence of amino acids in a protein determines how the protein folds and forms a three-dimensional structure, known as its secondary, tertiary, and quaternary structure. The specific arrangement of amino acids also dictates the specific chemical reactions that a protein can perform, which are necessary for many biological processes in the body.

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The given question is incorrect. The correct question is as follows:

Proteins are made of ________________________, and the sequence of these determine how the protein will fold up and take shape, which ultimately determines it's function. A) lipids B) amino acids C) nucleotides D) monosaccharides

Based on the mating activity shown, the two amphibians (frogs and toads) on the mating timetable that do not interbreed are bullfrog ad wood frogs.

Interbreeding is the act of breeding or mating between individuals of different species, subspecies, or populations that would not normally interbreed in the wild. This can result in offspring with genetic traits that are a mix of both parents.

Interbreeding can occur naturally, but it can also happen through intentional human intervention, such as in animal breeding or in the creation of hybrid plants.

In some cases, interbreeding can lead to the development of new species or subspecies over time.

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Answer:

The following is not found in both pro and eukaryotic cells are

1)Ribosomes

2)DNA

The type of scientist best qualified to perform genetic engineering to produce more productive seeds in agriculture would be a molecular biologist, the correct option is C.

Molecular biologists specialize in studying the structure, function, and interactions of molecules within biological systems, including DNA and genes. Genetic engineering involves manipulating the genetic material of organisms, which requires a deep understanding of molecular biology principles.

Molecular biologists have the expertise to identify and isolate specific genes responsible for desired traits in crop plants, such as increased productivity or resistance to pests or diseases. They can then modify or introduce these genes into target plants to achieve the desired outcomes, the correct option is C.

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The correct match of the ecology terms with their definitions is as follows:

Ecology is the branch of biology dealing with the relationships of organisms with their environment and with each other.

Some ecological terms were given in this question and are described as follows:

Abiotic factors are nonliving, inanimate, characterised by the absence of life; of inorganic matter.

Renewable resources are natural resources that is replenished by natural processes at a rate comparable to its rate of consumption by humans or other users.

Heterotrophs are organisms which requires an external supply of energy in the form of food as it cannot synthesize its own.

Decomposers are organisms that feed off decomposing organic material, especially such a bacterium or fungus.

Biotic factors are those pertaining to, or produced by life or living organisms.

Scavengers are animals that feeds on decaying matter such as carrion.

Population is a collection of organisms of same species, sharing a particular characteristic of interest, most often that of living in a given area.

Omnivore is an animal which is able to consume both plants (like a herbivore) and meat (like a carnivore).

Limiting factor is a condition that limits the growth or abundance of a population of organisms in an ecosystem.

Ecosystem is the interconnectedness of organisms (plants, animals, microbes) with each other and their environment.

Herbivores are organism that feeds chiefly on plants; an animal that feeds on herbage or vegetation as the main part of its diet.

Invasive species are species that has been introduced to an environment where it is not native, and that has since become a nuisance through rapid spread and increase in numbers, often to the detriment of native species.

Carnivore is an organism that feeds chiefly on animals; an animal that feeds on meat as the main part of its diet.

Autotroph is any organism that can synthesize its food from inorganic substances, using heat or light as a source of energy.

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A student claims that viruses are alive because they have genetic material and can reproduce. Is this student's claim correct?

The claim is not entirely correct, as the classification of viruses as living or non-living entities is a subject of ongoing debate among scientists.

While it is true that viruses have genetic material (DNA or RNA) and can reproduce, they lack other essential characteristics of living organisms.

Viruses cannot reproduce on their own; they require a host cell to replicate. They invade a host cell and hijack its machinery to reproduce their genetic material and create new virus particles.

This is different from living organisms, which can reproduce independently.

Additionally, viruses lack cellular structures like a cell membrane, cytoplasm, and organelles that are found in living organisms. They do not carry out metabolic processes,

such as obtaining and using energy, and do not maintain homeostasis, which is a stable internal environment within a living cell.

In summary, while viruses possess some characteristics of living organisms, such as genetic material and the ability to reproduce (albeit within a host cell),

they do not exhibit all the fundamental features necessary to be considered living entities. Therefore, the student's claim is not entirely correct,

as the classification of viruses remains a debated topic among scientists.

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Answer:

The correct answer is D.) the curved surface of Earth.

Explanation:

The intensity of sunlight on Earth is affected by the curved surface of Earth, which causes the sunlight to spread out over a larger area. As a result, the intensity of sunlight is less at any given point on Earth's surface than it would be if Earth had a flat surface. This also explains why the poles receive less sunlight than the equator, as sunlight is spread out over a larger area near the poles due to the curvature of the Earth.

Factors such as the mass of Earth, the speed of Earth, and the number of rotations of Earth do not directly affect the intensity of sunlight on Earth.

Answer:

A neurotransmitter is a signaling molecule secreted by a neuron or a glial cell to affect another cell across a synapse.

Explanation:

Answer:

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Explanation:

Answer: DNA and ribosomes

Explanation:

DNA is the genetic material of the cell and it is found In all living cells. Ribosomes are small, non-membrane bound organelle that is found in ALL cells and cell types.

The situation would you see a partial lunar eclipse is a portion of the Moon passes through Earth’s shadow option -c is correct answer.

As the name implies, a partial lunar eclipse happens when the Sun, Earth, and Moon aren't exactly lined up. As a result, only a portion of the Moon enters Earth's umbral shadow and is thus completely covered in red light.

a solar eclipse in which some of the sun's direct rays reach the observer because the moon does not completely block the sun's surface or photosphere. : the entire total solar eclipse that occurs outside of the path of totality.

When the Moon passes between the Sun and Earth, a partial solar eclipse occurs, but the Sun, Moon, and Earth are not exactly lined up. The Sun will appear to be partially obscured, taking on the shape of a crescent.

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Answer:

The atmosphere provides the geosphere with heat and energy needed for rock breakdown and erosion. The geosphere, in turn, reflects the sun's energy back into the atmosphere. The biosphere receives gases, heat, and sunlight (energy) from the atmosphere.

Over time, a leaking heart valve can harm the heart by increasing strain, enlarging the heart, and causing pulmonary hypertension, arrhythmias, as well as blood clots.

Mitral regurgitation, another name for a leaky heart valve, happens when the mitral valve malfunctions and opens improperly, enabling blood to travel backward into the left atrium of the heart. Over time, this may have several detrimental impacts on the heart:

Increased workload: The leaky valve increases the blood flow and pressure in the left ventricle, which can add to the heart's burden.

Heart enlargement: Over time, the heart may expand and weaken due to the greater strain, developing heart failure.

Pulmonary hypertension: The enlarged left ventricle may also result in enlarged pulmonary vessels and arteries, which would result in pulmonary hypertension.

Arrhythmias: A leaky valve may raise the chance of arrhythmias by altering the structure and operation of the heart. (abnormal heart rhythms).

Blood clots: Because of the leaky valve's instability, there is also a higher chance of developing blood clots, which can result in a stroke or other problems.

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Answer:

A & O group

Explanation:

Dad will be having io io allele and mom will be having ia io

The possible blood types for the baby are either A or O, with equal likelihood of 50% for each.

A classification system called blood type explains whether or not specific antigens are present on the surface of red blood cells. Each of the four major blood types—A, B, AB, and O—has distinct antigen markers.

A and O are the two possible blood types for a child whose mother is heterozygous for blood type A (genotype AO) and whose father has type O (genotype OO).

A baby has a 50% chance of acquiring the A allele from the mother and a 50% chance of inheriting the O allele from the father because each parent gives one of their two blood type genes to their offspring.

Baby with blood type A inherits the A allele from the mother and the O allele from the father (genotype AO).

The child will have blood type O if both parents carry the O allele (genotype OO).

Therefore, the possible blood types for the baby are either A or O, with equal likelihood of 50% for each.

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Answer:

Anatomical there are similarities among many organisms. Homologous structures found in different species that are anatomically similar because they have been inherited from a common ancestor.

Explanation:

Brainliest please?

Answer:

The answer is, Homologous

Explanation:

Homologous  structures are fully functional, show evidence of a common ancestor, and may or may not have the same function in different species.

Answer:

A. Crocodile

Explanation:

This is because we can see that when the Crocodiles are at <1% of their total lifespan, they have the least amount of remaining survivors out of 100.

The characteristics present in Homo are walked upright, used tools, includes only, surviving species of human, and hole for the spinal cord at the rear of the skull, correct options are b, c, d, and e.

Homo is a genus of primates that includes modern humans and their close extinct relatives. One of the most significant characteristics of Homo is bipedalism, which means walking on two legs. Another characteristic of Homo is the use of tools, which is evident in the archaeological record from the early Homo species.

Finally, the position of the foramen magnum, the hole for the spinal cord at the rear of the skull, shifted forward in Homo, indicating that they had a more upright posture than their Australopithecus ancestors, correct options are b, c, d, and e.

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The complete question is:

Select all of the characteristics that are present in Homo.

a. smaller brains than Australopithecus

b. walked upright

c. used tools

d. includes only surviving species of human

e. hole for the spinal cord at the rear of the skull

Answer: The extensive folding of the inner mitochondrial membrane benefits a eukaryotic cell by increasing the surface area inside the organelle, It creates more chemical reactions to occur since many of the chemical reactions happen on the inner membrane.

The extensive folding of the inner mitochondrial membrane increases the membrane surface area, thereby also increasing the number of electron transport proteins and protein complexes that are required to create ATP.

In conclusion, the extensive folding of the inner mitochondrial membrane increases the membrane surface area, thereby also increasing the number of electron transport proteins and protein complexes (ATP synthases), which are required to produce ATP.

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Answer:by rotation that is powered by the motive force

Explanation:

Answer:

Fish is a species that has a spine. Although other species in that list have spines, fish is a representative vertebrate example when learning about them.

Explanation:

A vertebrate is a species that has a spine / multiple vertebrae.

(I'm sorry if this was not the answer you're looking for)

Answer:

The sarcoplasmic reticulum ( SR) is a membrane -bound structure found within muscle cells that is similar to the smooth endoplasmic reticulum in other cells. The main function of the SR is to store calcium ions (Ca 2+ ).

Explanation:

One cell, which performs all of the processes required by the organism, makes up a unicellular organism.

The correct option is (a) performs all of the function

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Answer:

ATP .....................

ATP is how cells store energy