A ______ is one narrow beam of light traveling in a straight line.

Answers

Answer 1

Answer: A light ray is one narrow beam of light traveling in a straight line. It is the most basic element in geometrical optics. A light ray is an idealized and hypothetical model of a light that is used to better explain the propagation of light. In reality, light travels as a wave and can therefore be bent.

Answer 2

Answer:

In optics a ray is an idealized model of light, obtained by choosing a line that is perpendicular to the wavefronts of the actual light, and that points in the direction of energy flow. Wikipedia

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Skin color is an ______ trait.
What do we mean when we use the terms monohybrid cross and dihybrid cross? A) A monohybrid cross involves a single parent, whereas a dihybrid cross involves two parents. B) A monohybrid cross produces a single progeny, whereas a dihybrid cross produces two progeny. C) A dihybrid cross involves organisms that are heterozygous for two characters and a monohybrid cross involves only one. D) A monohybrid cross is performed for one generation, whereas a dihybrid cross is performed for two generations. E) A monohybrid cross results in a 9:3:3:1 ratio whereas a dihybrid cross gives a 3:1 ratio.
Which is the role of restriction enzyme.
Identify the following description if the feaures is a transcription, translation, or neither. 1) Two DNA molecules result from one original molecule. 2) Amino acids are linked together at ribosomes. 3) RNA base sequences complementary to those in DNA are built. 4) Complementary tRNA bases match up to mRNA bases
The energy you get from eating a peanut butter and jelly sandwich is in the form of

What part of the bacterium allows it to recognize different substances in the outside environment?

Answers

It is the cell membrane

The image below shows a cell in one of the stages of cell division.Which of the following statements correctly describes the stage in cell division shown in the image? (Look at the image attached for clarification)

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The statement that correctly describes the stage in cell division shown in the image is the cell is in telophase II of meiosis because the cell is separating and contains two copies of each chromosome. The correct option is D.

What is cell division?

The process by which new cells are created from more mature cells is known as cell division. Each and every eukaryotic cell engages in this process. There are various steps in the procedure. Every component of the cell is split into two during the process, which results in the creation of a duplicate of the original cell.

Telophase is the last stage of cell division. In this stage, the material in the cell is divided and in this step, the plasma membrane divides and separates the two cells.

Thus, the correct option is D. the cell is in telophase II of meiosis because the cell is separating and contains two copies of each chromosome.

To learn more about cell division, refer to the link:

brainly.com/question/13312481

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Answer:d

Explanation:

Which statement illustrates bias in scientific research?A zoologist publishes incomplete data on sloths which supports their original hypothesis and notes that more research is required.

A botanist publishes data about plant growth that does not support their original hypothesis and is replicable.

An ecologist publishes data funded by a construction company which supports their original hypothesis that an endangered animal's territory is not endangered.

A microbiologist publishes data funded by the National Institutes of Health that does not support their original hypothesis.

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. An ecologist publishes data funded by a construction company which supports their original hypothesis that an endangered animal's territory is not endangered.

Which term refers to the stages an organism goes through, from birth to death?a. life cycle
b. lifespan
c. longevity
d. metamorphosis

Answers

Life cycle refers to the stages an organism goes through, from birth to death.

Life cycle

A life cycle is a series of stages a living thing and organism goes through during its life. All plants and animals go through life cycles.

The life cycle starts as a seed, egg, or live birth, then growing up and reproducing.

There are three types of cycles; haplontic life cycle, diplontic life cycle, diplobiontic life cycle.

Find out more on life cycle at: brainly.com/question/7510515

the answer is A because in a life cycle it start of in birth, then growing up, then adult then giving birth and then death. after death or birth the life cycle starts all over again. but in actuality when it gives birth that's when the life cycle is restarted. think as it's us humans. we are born. after that we grow up to be a toddler - young kid => teenager => young adult => then women gives birth => new baby is born. when new baby is born then the life cycle is restarted. but the next step after a baby's born the mom and dad get old and then death is the last step.

A venule is a tiny tube which gathers blood returning from the capillaries.TrueFalse

Answers

i do beileve that that is true i might be wrong but i now ALOT about biology so i think its write if not sorry but true hope i could help :)

Answer:

True

Explanation:

That's the definition basically!

Which is the best definition of a prokaryotic cell? It has a cell wall but lacks a well–defined nucleus and organelles, and its cytoplasm doesn't have much structure.It contains a membrane–bound nucleus and organelles, and its organelles have specialized duties.
It contains a membrane–bound nucleus, a large central vacuole, a cell wall, a cell membrane, and chloroplasts.

Answers

Options:
it has a cell wall but lacks a well–defined nucleus and organelles, and its cytoplasm doesn't havemuch structure. - this is the correct one!

It contains a membrane–bound nucleus and organelles, and its organelles have specialized duties.
no!, this is false! prokaryotes don't have membrane-bound nucleus!

It contains a membrane–bound nucleus, a large central vacuole, a cell wall, a cell membrane, and chloroplasts.- no!, this is false! prokaryotes don't have membrane-bound nucleus!

so, for this we only needed to know that prokaryotes DON'T have a membrane-bound nucleus (and this is also perhaps their most important property)

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