Exercise
1. Fill in the blank spaces with suitable words.

(b) The sun ray should not directly focus on________.

(c) Rough surface produces ________reflection of light.

(d) Plane mirror forms_______.

Answers

Answer 1

Answer:

I’m not exactly sure, but I think the answer is

For the first, I think it would be Smooth surfaces

Second, I think the answer is No reflection of light

And the third, Reflections

I hope this helps, but don’t trust this 100%

Explanation:

Please give me brainliest

Answer 2

Answer:

1)iris

2) irregular/diffused

3) virtual image


Related Questions

The image below shows the process of DNA replication. Identify the components of the process.

Answers

Sorry I'm late, God bless!

The given diagram shows DNA replication in mammals. The labelled parts of DNA replication in this diagram are: DNA Polymerase, RNA primase, topoisomerase, Okazaki fragments, and DNA helicase.

What is DNA replication?

DNA is the genetic material in human beings. The double-stranded DNA undergoes replication to divide and form daughter strands. The main enzymes required for the replication are: DNA Polymerase, RNA primase, topoisomerase, Okazaki fragments, and DNA helicase.


DNA Polymerase: It is responsible for the polymerization of new strands of DNA


RNA primase: The polymerase requires a primase for the proper attachment on the DNA strand to begin the replication process

Topoisomerase: This class of enzyme is responsible for introducing negative supercoils in the strands of DNA which will open up the DNA double strands

Okazaki fragments: The okazaki fragments are present in the lagging strand of DNA. These are the small fragments of DNA which is not synthesized continuously

DNA helicase: These enzymes are responsible for the separation of the double strands of the DNA molecule.

The completely labelled diagram is attached with the answer.

Learn more about DNA Replication here:

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i need help! can someone pls help me

Answers

Answer:

Two

Explanation:

A male and female cromosome

A seed-bearing plant starts its growth from:

the joining of egg and sperm cells
an egg cell
a sperm cell

Answers

When a sperm cell joins an egg cell, a new life is started

Which of the following are similarities that Earth’s biomes all share?
Check all that are true.

Biomes all share the same biotic and abiotic factors other than annual precipitation levels.

Biomes are characterized by temperature, precipitation, and other abiotic factors.

Biomes are characterized by the types of plant and animal species that they can support.

Biomes are characterized by types of interactions between living things and other biotic factors.

Someone please help??

Answers

Answer:

The hot, humid rain forest, the dry desert, and the icy tundra all have something in common: Each one is a biome. A biome is a community of specific types of plants and animals that covers a large area of the Earth's surface. Rain forests cover hot, humid regions.

Explanation:

i hope this helps

Answer:

Biomes are characterized by temperature, precipitation, and other abiotic factors.

Biomes are characterized by the types of plant and animal species that they can support.

Explanation:

10 POINTS HELP ASAP



During photosynthesis, the series of reactions that captures carbon and creates sugars (or other organic
molecules) needed for energy and growth is called

A. the light reductions.

B. the Krebs cycle.

C.carbohydrate loading.

D.the Calvin cycle.

Answers

D is the answer to this question.

what process allows plants to convert sunlight energy into chemical energy

Answers

Photosynthesis is the process

Which experiment has the most reliable results?
A. An experiment that proves the hypothesis
B. An experiment that uses expensive equipment
C. An experiment in which the results are repeatable
D. An experiment with no hypothesis

Answers

Answer:

I would think C, if it is consistent then the results should be reliable!

Explanation:

Different evolutionary lines that encounter extremely similar forces of natural election tend to become more similar as they evolve. This is known as

Answers

Answer:

convergent evolution

Explanation:

Convergent evolution is the evolutionary process by which independent species evolve similar phenotypic traits as a consequence of the adaptation to similar environmental conditions and/or ecological niches. A well-known example of convergent evolution are the wings of birds, insects and bats that evolved separately in these different lineages. Convergent evolution is opposite to divergent evolution in which closely related organisms evolve different phenotypic traits (for example, Darwin's finches, which are closely related species that have both similar and different traits).

Please help with this!!!

Answers

Answer:

B

Explanation:

Answer:

Not quit sure but i think its B

This model shows a human embryo. What can you determine about its development from the model?
It has a postanal tail.
It’s a vertebrate
It has pharyngeal arches.
It has fully developed organ systems.

Answers

In humans, tails are vestigial structures, meaning the embryo can express it in early stages of development, but then, they loose it. Option A) It has a postanal tail.

What is a vestigial structure?

Vestigial structures are those body parts that have lost or reduced their original function during the evolution of a species.

These vestigial structures might be found in many animals, including human beings. They were plenty functional in the ancestors of new species, but now are typically degenerate, stunted, or rudimentary, and tend to be much more variable than homologous non-vestigial parts.

An example of these structures is the coccyx. This tailbone is the remnant of a missing tail. Actually, all mammals have a tail at some point in their development, even in humans, it is present for a period of 4 weeks during embryogenesis, but after a period of time this tail disappears and its forming vertebras get fussed with each other composing the coccyx.

In many animals, the function of the tail is to stabilize, equilibrate and mobilize. But in humans, the coccyx, located at the end of the vertebral column, has lost this original function. Although it is still an area of muscle insertion.

The correct option is A) It has a postanal tail.

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What happens to the rate of photosynthesis as the intensity of light or concentration of CO2 increases? And How is your conclusion from the question above different from what happens as temperature increases?

Answers

Answer:

The rate of photosynthesis increases the intensity of light or concentration of CO2 increases, however, at a certain temperature, the rate can decrease due to enzyme denaturation.

Explanation:

Photosynthesis is a unique metabolic process specific to only some organisms. The photosynthetic process, however, cannot occur without some vital ingredients including light, Carbon dioxide (CO2) and optimum temperature.

An increase in the concentration of light (from sun) and CO2 (from atmosphere) increases the rate at which photosynthesis occurs i.e. more light, CO2 results in more photosynthetic process. However, an increase in TEMPERATURE also increases the photosynthetic rate but at a particular temperature, the enzymes that bring about the photosynthetic process can be denatured or damaged, hence, at an EXCESSIVE TEMPERATURE, photosynthesis can be inhibited.

What do all cells in your body have in common?

Answers

Answer:

they all have a membrane

Explanation:

although some cells may have similar structure and chemical features, the only thing they all share is a membrane^^

I will mark brainliest for whoeva can solve this ​

Answers

Casey!!! Hope this helps

Which of the following is a reactant in photosynthesis?
a. O2
b. C6H12O6
c. COOH
d.CO2

Answers

B. C6H12O6


Explanation:

The reactants for photosynthesis are

6CO2+6H2O+C6H12O6+6O2

Where do you get a Genetic Disease such as DMD?

Answers

Answer:

DMD is inherited in an X-linked pattern because the gene that can carry a DMD-causing mutation is on the X chromosome. Every boy inherits an X chromosome from his mother and a Y chromosome from his father, which is what makes him male. Girls get two X chromosomes, one from each parent.

Explanation:

Explain why metabolism in eukaryotic cells depends on the endoplasmic
reticulum, but prokaryotes have survived quite well without such an internal
transport system?

Answers

Explanation:

Metabolism in eukaryotic cells depends on the endoplasmic reticulum because it transports materials between membrane-bounded organelles within the cell.

mutation will always result in the formation of a deadly tumor, or the development of a major body defect.
Explain why this is incorrect.

Answers

Mutations also occur because of incorrect copying of information in Mitosis.

FUN FACT OF THE DAY (day:5)

Sharks have the thickest skin of any animal species. Some sharks have skin that is 6 inches thick. Sharks have the largest brains of any fish.

Answers

Answer:

dats cool

Explanation:

I need to know what prokaryotic and eukaryotic cells have in common

Answers

Answer:

first one

Explanation:

ribosomes

1. Because water vapor molecules are lighter than nitrogen or oxygen molecules,
a. Hot air rises
b. Air pressure is low at high altitudes
c. Humid air is lighter than an equal volume of dry air at the same temperature
d. Clouds form in cold fronts

Answers

Answer:

your answer should be A if not try C

Explanation:

The answer is A I think

The FBI uses STR (short tandem repeat) analysis to identify criminals, and the FBI stores the information in a database. How many regions, or loci, of DNA are used for STR analysis? 5 13 26 30

Answers

Answer:

13

Explanation:

Short tandem repeats (STRs), also known as microsatellites, are short DNA sequences containing core repeat units of between 2-7 nucleotides (nts) which are tandemly repeated. The STR analysis is commonly used in molecular biology laboratories in order to identify DNA samples by comparing STR loci between samples. For example, the Federal Bureau of Investigation (FBI) uses 13 STR loci for the identification of individuals in the USA. It is important to note that these 13 loci are independently assorted (i.e. they are not linked), and thereby their combined use results in a very low ("nearly zero") false-positive identification rate.

Answer:

bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb

Explanation:

just Because it is

I really need help someone please help me!!

Answers

Answer:

OK Where is the problem

Explanation:

Sasssmrmdmdjekkwkwlelelekkrkrkrke

Alguien dígame por favor cual es el proceso por el cual los seres vivos obtienen energía desde el punto de vista de la biología, necesito una respuesta compleja, gracias

Answers

Answer:

Explanation:

La degradación de carbohidratos, sobre todo de la glucosa, es la fuente principal de energía en la célula. La degradación oxidativa de la glucosa a CO₂ y H₂O produce una gran cantidad de energía libre, la cual puede almacenarse en la célula en compuestos ricos en energía como el ATP.

La glicólisis es la etapa principal en la degradación de la glucosa, la cual se oxida hasta piruvato. Ocurre en ausencia de oxígeno y por lo tal organismos anaerobios utilizan este mecanismo para obtener energía. Durante este proceso se obtienen 2 moléculas de ATP.

Luego, el piruvato se oxida para dar un acetilo, que se une a una Coenzima A dando acetil-CoA. Luego éste entra en el ciclo de Krebs, que es la vía central del metabolismo oxidativo. El acetilo se combina con oxalacetato para dar citrato. A través de ocho reacciones dos carbonos se oxidan completamente a CO₂ y se regenera el oxalacetato. Durante el ciclo se genera GTP, un compuesto con un enlace de alta energía. Además, cada vuelta del ciclo produce tres moléculas de NADH y una de FADH₂, que son transportadores de electrones.

Durante la fosforilación oxidativa, los electrones de estos transportadores se combinan con oxígeno y la energía liberada en el proceso promueve la síntesis de ATP.

What is the function of the cell wall in plant cells

Answers

Answer:

The cell wall surrounds the plasma membrane of plant cells and provides tensile strength and protection against mechanical and osmotic stress. It also allows cells to develop turgor pressure, which is the pressure of the cell contents against the cell wall.

chloroplast diagram needs labeled

what are the labels 1-6?

Answers

1- outer membrane 2- inter membrane space
1-outer membrane
2-inner membrane
3-chloroplast DNA
4-ribosomes
5-thylakoid
6-stroma

what is the ability to do work called

Answers

Answer:

Workable?

Also Energy. Because Your Moving...

Explanation:

Able/Abiltity to Work.

I Hope This Is What You Were Asking. <3 <3 <3

In a strand of DNA, if the percentage of thymine is 30%, what would the percentage of cytosine in the same DNA strand be?

Answers

Answer:

20% cytosine

Explanation:

Their is 30% thymine and a total of 30% adenine, and there is 20% cytosine and 20% guanine.

Well in DNA the complimentary pairs are Adenine and Thymine, Cytosine and Guanine - Whatever Thymine has Adenine must have the exact same (So in this case Thymine has 30% this must mean Adenine also has 30%) so if there is 40% remaining this must be split between the pair Cytosine and Guanine which would give 20% each

PLEASE HELP QUICK!!!!! WILL GIVE BRAINIEST!!!!!

Answers

Hi I can help you! But it seems to me that I can not read the directions cause you only took a picture of the full 2 questions and half of the directions, please post again with full directions or send me a message :)

HELP BE SPEEDY When cells are damaged, new cells are created by cell division. How does the cell
theory support this fact?
a. It states that cells come from previously existing cells.
b. It states that all living things are made up of one or more cells.
c. It states that all cells have a nucleus which divides.
d. It states that the basic units of structure and function are cells.

Answers

Answer:

a. It states that cells come from previously existing cells

Help I’ll mark you Brainly.

Answers

??????????/Explanation:

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