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Answer:

The correct answer is option C "determine how a star is moving (toward, away, fast, slow)"

Explanation:

All realized components emanate and assimilate specific frequencies of light, which is important for the electromagnetic range. By considering the frequencies of light (as demonstrated by 'lines' inside the electromagnetic range) discharged by an object in space, astronomers can get a scope of information.

One thing they look at is the adjustment in situation of lines in the range from a star this can tell astronomers the distance away the star is, regardless of whether it is moving towards or away from us and how quick it is moving.

Answer:

Explanation:

It has a deoxyribose and phosphate backbone having four distinct bases: thymine, adenine, cytosine, and guanine. Is a polymer with a ribose and phosphate backbone with four varying bases: uracil, cytosine, adenine, and guanine.

The engulfed object is thus enclosed within a membrane-bound vacuole called a phagosome. The phagocyte digests the ingested particle with hydrolytic enzymes, which are contained within membrane-enclosed sacs called lysosomes found within the cell.

Answer:

The correct answer is ''The scientific study of heredity''

Explanation:

Genetics is a branch of biology that studies how hereditary characters are transmitted from generation to generation and the diversity that exists among living beings. Inheritance is the physical and biological characteristics that we share with our family and that can determine our appearance and our biological characteristics, that is, our phenotype (eye color, skin type, etc.) as well as our internal characteristics. All of this is largely derived from our genetic components, that is, our genotype.

Answer:

The ABO blood type is inherited in an autosomal codominant fashion.

The Rh system of blood groups determines the gene that forms two alleles: dominant (D) and recessive (d).

Explanation:

The dominant allele determines the synthesis of antigen D, so people with this antigen are referred to as Rh +. The recessive allele is dysfunctional so no D antigen is produced and individuals are Rh-

The ABO blood group system determines a gene that has three alleles:

A,  B, and O allele.

Alleles A and B are functional and determine the synthesis of certain antigens (agglutinogens A B) that are found on erythrocytes.

In this exercise we have to use the knowledge of blood to explain its inheritance factors, so we want to explain how:

So we know that blood types in addition to the types known as ABO, there is also the RH factor which is the biggest inheritance.

Type A blood has A antigens, B blood has B antigens, AB blood has both antigens, and type O has neither. Red blood cells also have another type of antigen called RhD, which is part of a family made up of 61 Rh type antigens. When the blood has RhD, it is type positive.

Our blood group is inherited from both parents. Just as we are given physical characteristics like skin color or hair, we also inherit blood type. Surprising as it may seem, blood group is not genetically determined at birth according to the contributions of both parents.

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Answer:

1: The process of osmosis would cause water to move into the cells causing them to swell and possibly burst. Many freshwater one celled organisms have structures called contractile vacuoles. These structures collect and pump out excess water that accumulates in the cell.

2: During active transport, a protein pump uses energy, in the form of ATP, to move molecules from an area of low concentration to an area of high concentration. An example of active transport is the sodium-potassium pump, which moves sodium ions to the outside of the cell and potassium ions to the inside of the cell.

Explanation:

Answer:

Excess sediment in water may cause a reduce in light penetration decreasing  algae's(an important food source)  ability to photosynthesize therefore not allowing it to grow. It will stop fish from seeing well enough to move around or feed. Sediment can clog fish gills, reducing resistance to disease and lowering growth rates.Certain chemical pollutants bind to sediment and so if there is excess sediment it can very rapidly change the water quality. These

chemicals that bind to the sediment are dangerous to small animals and plants as well as larger forms of life.

Explanation:

Answer:

3

Explanation:

I hope this is correct and have a great day

Answer:

3 and 4

Explanation:

Passage of solid waste comes after digestion. Absorbtion of nutrients happens in the small intestine after breaking down food using HCI in the stomach. Hope this helps!

Answer:

B

Explanation:

when water is frozen, it expands, something to do with anomolous expansion of water.

Water increases its volume when it becomes a solid.

Volume is a measure of occupied three-dimensional space. It is often quantified numerically using SI derived units or by various imperial or US customary units. The definition of length is interrelated with volume.

The surface-area-to-volume ratio, also called the surface-to-volume ratio and variously denoted sa/vol or SA:V, is the amount of surface area per unit volume of an object or collection of objects.

If volume is the amount of 3-D space contained by a closed surface (e.g. the amount of space within a given cube, or cylinder, or any other 3-D shape), liquid volume is a way to measure an amount of liquid by describing it how much 3-D space it occupies.

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Answer:

3.4

Explanation:

If the purple flower is heterozygous:

                Pp    x    pp

            Pp   Pp   pp   pp

the expected ratio of purple flower offspring to yellow flower offspring would be 50:50.

Chi square = [tex]\frac{(O - E)^2}{E}[/tex] where O = observed frequency and E = expected frequency.

phenotype            O              E                 Chi square

purple                   87             73                [tex]\frac{(80-73)^2}{73}[/tex] = 0.67

yellow                   59             73                [tex]\frac{(59-73)^2}{73}[/tex] = 2.68

Total = 0.67 + 2.68 = 3.35 to the nearest tenth = 3.4

Degree of freedom = 2 - 1 = 1

Critical Chi square value (alpha = 0.05) = 3.84  

SInce the critical Chi square value is greater than the calculated value, the null hypothesis is accepted.

Answer: Enzymes are life’s great facilitators. They create the conditions needed for biochemical reactions to happen fast. The general name that chemists use for chemical entity that increases the speed of a reaction is  “catalyst.” Enzymes are biological catalysts they catalyze the chemical reactions that is happen inside living things.

Explanation:

Answer:

B

Explanation:

Answer:

A scanning transmission electron microscope has achieved better than 50 pm resolution in annular dark-field imaging mode and magnifications of up to about 10,000,000× whereas most light microscopes are limited by diffraction to about 200 nm resolution and useful magnifications below 2000×.

Answer:

cell

Explanation:

is a building block of living things

Answer:

A

Explanation:

These are the materials that can be decomposed

Answer:

Light pollution does not affect predation levels, so the correct answer is A

Explanation:

Increase predation is one of them which is not affected by Light pollution.

Hence, the correct option is A.

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Answer:

Because natural selection acts directly only on phenotypes, more genetic variation within a population usually enables more phenotypic variation. Some new alleles increase an organism's ability to survive and reproduce, which then ensures the survival of the allele in the population.

Natural selection is the process through which populations of living organisms adapt and change. Individuals in a population are naturally variable, meaning that they are all different in some ways. This variation means that some individuals have traits better suited to the environment than others.

Natural selection is a mechanism of evolution. Organisms that are more adapted to their environment are more likely to survive and pass on the genes that aided their success. This process causes species to change and diverge over time.

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Cortex, especially neo-cortex and pre frontal cortex. Where neuroplasticity can occur.

Answer:

The nucleus in a cell is like a brain in a human. It is the power house. The nucleus tells everything in the cell what to do and when to do it.

Explanation:

Answer:the nucleus is an organelle found in eukaryotic cells. The nucleus hold most of the genetic material from the cell.

Explanation:

Answer:

People feel fireworks before hearing it because light travels faster than sound.

Explanation:

We always see the colors of the fireworks before hearing their defeaning sounds. This is because light travels faster than sound, so we can see the light before hearing the sound. An example of this is seeing lightning before hearing thunder. When lightning strikes, the air around it moves very quickly, causing vibrations.

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Answer:

B

Explanation:

Mitosis carries out the process of asexual reproduction, produces two identical daughter cells and forms diploid cells. Meiosis carries out the process of sexual reproduction, forms four different daughter cells and makes haploid cells.

Answer:

Left is synthesis, right is digestion

Explanation:

Synthesis refers to the creation of a product, whereas digestion refers to the breakup of the reactant or initial substance.

Answer: Orbit

Explanation: The Earth’s axis being in orbit means that the Earth is in different positions around the sun at different points in time, causing day and night.

Answer:

The answer is ATP, however, NADH is part of what goes into producing ATP.

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Explanation:

Deliver nutrients to the body cells.

Answer:

The upper arm bone or humerus

Explanation:

Answer:

Form the cell membrane around food to create a vacuole that is kept separate from the rest of the cytoplasm while enzymes break down the food.

Cells maintain homeostasis without using energy by relying on passive transport processes.

Passive transport mechanisms do not require the input of cellular energy (ATP) and instead rely on the inherent kinetic energy of molecules and the concentration gradients of substances.

One common example of passive transport is simple diffusion, where molecules move from an area of higher concentration to an area of lower concentration until equilibrium is reached.

Similarly, facilitated diffusion utilizes protein channels or carriers to facilitate the movement of specific molecules across the cell membrane without energy expenditure.

Osmosis is another passive process where water molecules move across a selectively permeable membrane to balance the concentration of solutes on both sides.

By utilizing these passive mechanisms, cells can maintain a stable internal environment and achieve homeostasis without the need for energy expenditure.

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