What are several reasons why apoptosis happens

Answers

Answer 1

Answer:

There are several reasons: it gets rid of cells that are not needed, in the way or potentially dangerous to the rest of the organism. "Cells that are not needed may never have had a function. In other cases, they may have lost their function, or they may have competed and lost out to other cells.

Explanation:


Related Questions

When someone reads for a long period of time their eyes often get tired. This is most likely due to the continued

Answers

emission of blue rays from phone screen

Patrão e empregado, para se comunicarem, usam a língua portuguesa. Compare o modo como cada umdeles fala:"— Pois não, Seu Washington. Que posso fazer pelo senhor? Houve algum problema?""— Aquele puro-sangue qui o sinhô tinha!"IDENTIFIQUE, nos trechos, uma palavra que foi falada pelas duas personagens de modos diferentes.Qual a diferença entre as formas de falar e escrever essa palavra? Qual forma é escrita de modo formale qual é escrita de modo informal? *

Answers

Answer:

Ese

Explanation:

Roles of bones in bony fish include which of the following?
a for general protection and support
bas places of attachment for muscles
x
to protect the fish's brain
d all of the above

Answers

Answer:

D All of the above

Explanation:

Like our bones, bones in fish can provide general protection and support to their body.

(Fun fact, jellyfish do not have bones, so when they are out of the water, they loses their bell shape structure and looks more like a flat piece of jelly. But fish tends to look the same when it is in water and out of water.)

The bone is also where the muscles will attach to, which allows for movement.

(Imagine our fingers, the muscles in our fingers are attached to our bones, which allows us to do things like typing.)

Bones can also protect the fish's brain.

(Brain can be very fragile and soft, so having a hard structure around it can protect the brain. It's kind of similar to protecting the liquid egg in an egg shell.)

Which action is not an example of someone maintaining homeostasis?
1. a woman breathing hard while jogging
2. a man bleeding from a cut
3. a girl sweating because it's hot outside
4. a boy shivering in the cold

Answers

Answer:

2 is the answer

Explanation:

because f

Answer: The answer is 2. A man bleeding from a cut.

Explanation: I took the quiz just now; this is the correct answer.

A nucleotide does NOT contain:
O Aphosphate group
O A nitrogen group
O A 5-carbon sugar
O Polymerase

Answers

Answer:

Polymerase

Explanation:

DNA polymerase adds nucleotides but it is not in nucleotides.

1. How will photosynthesis affect the dissolved oxygen levels in the
water?

Answers

Answer:

Vegetation- riparian vegetation directly affects dissolved oxygen by releasing oxygen into the water during photosynthesis. It indirectly affects dissolved oxygen concentrations because vegetation shading a stream may decrease water temperatures, and as temperature decreases dissolved, oxygen increases.

Hope this is fine for you

What organism pollinates 30% of all the food Americans eat?

a. bees
b. rabbits
c. bats
d. birds

Answers

A. Bees
Bees pollinate a large amount of flowers that turn into food

2. Understanding human strengths is a focus of which kind of psychology?

Answers

Answer:

Positive psychology

Explanation:

Positive psychology is understood as the scientific study of human well-being as well as the strengths that allow individuals, communities, and societies to prosper. The field of positive psychology is based on the belief that people want to have a life full of positive affect and satisfaction (hedonic well-being), as well as to have a life full of meaning (eudaemonic well-being), to cultivate the best within themselves and enhance their experiences of love, work and fun. In this way, positive psychology will consist, precisely, of the theoretical study, measurement, classification and construction of positive emotion (focusing on human strengths), commitment and life satisfaction, especially in relation to lifestyle and health.

The diagram shows part of a frog’s body.



The structure labeled X most likely helps with which activity?

swimming
climbing
jumping
fertilizing

Answers

The answer is swimming

Answer:

A. Swimming

Explanation:

My mommy don't love me ;-;

For a certain plant, purple flowers (allele: P) are dominant and white flowers (allele: p) are recessive. A heterozygous purple plant is crossed with a true-breeding (purebred) white plant. What are the possible genotypes (allele pairs) of the offspring?

Answers

Pp=50% and pp=50% so it’s a 50/50 chance of what the offspring will be

The possible genotype of all the offspring will be PP, and Pp as per the given situation.

What is genotype?

An organism's genotype is made up of all of its genetic components. The alleles or variations that an individual carries in a specific gene or genetic region are also referred to as the genotype.

The term "genotype" broadly refers to an organism's genetic make-up; in other words, it characterizes an organism's whole gene pool.

The phrase can also be used to describe to the alleles, or different forms of a gene, that an organism carries in a more specific meaning.

In the Punnett square attached, the genotype of the organism is PP and Pp, which means the generation will be having purple flower.

Thus, the possible genotype will be 50% PP and 50% Pp.

For more details regarding genotype, visit:

https://brainly.com/question/12116830

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Team of scientists is studying several plant species that they think could become new farm crops. The scientists want to apply selective breeding to develop one of the species into useful crop plants. Which property of a plant species would be MOST USEFUL for meeting the scientists' goal? A. very low genetic variation B. very high genetic variation C. producing only a few fruits and seeds each growing season

Answers

Answer:

B. very high genetic variation

Explanation:

Selective breeding is the process by which crops or animals with desired phenotypic traits are chosen to produce offspring, which will contain the desired qualities. In this case, a group of scientists is trying to apply the principles of selective breeding to develop a particular crop plant.

This goal of producing a useful crop plant by the scientists can only be achieved when the plant species in question possess a HIGH GENETIC VARIATION i.e. difference in genetic constitution of individuals of the same species. This allows the individuals in the population to survive better.

Answer: It is b

Explanation:

Review the Protein to Trait Example. How did the differences in proteins lead to different traits for this feature?

Answers

Answer:

Proteins are responsible for shaping and growth of an organism.

Explanation:

The differences in proteins lead to different in traits because it is the protein that determines the trait. The gene's sequence is like language that instructs cell to manufacture a particular protein that is necessary for the growth and development of the organism. These proteins shaped the structure of organisms so we can say that difference in traits occur due to difference in their proteins.

why is poop good for other mammals ​

Answers

Answer:

It can be used to keep them warm

Also, cow dung is used by us to burn or to build stuff

Most importantly, faeces are deocmposed wste which is absorbed into the soil for plants to grow, hence allowing other mammals to flourish

Explanation:

It adds excess nutrients like nitrogen and phosphorus to the environment. Excess of these nutrients in many ecosystems creates unstable conditions that allow algae blooms to cloud our rivers, lakes, and streams

What is a shadow? Explain by giving an example.​

Answers

Answer:

Shadows are made by blocking light. Light rays travel from a source in straight lines. If an opaque (solid) object gets in the way, it stops light rays from traveling through it. This results in an area of darkness appearing behind the object. The dark area is called a shadow

Answer:

Shadows are made by blocking light. Light rays travel from a source in straight lines. If an opaque (solid) object gets in the way, it stops light rays from traveling through it. This results in an area of darkness appearing behind the object. The dark area is called a shadow

An example of shadow is a faithful dog that follows behind you all day.

Humans lived with domesticated dogs over thousands of years which resulted in many breeds of dogs. Humans bred some dogs to have thick
coats to keep the dogs warm in cold climates while other dogs have thin coats that live in warm climates.
Which evidence supports the claim that dogs inherit these characteristics?
O
A. During mitosis, mutations occurred and the offspring's DNA stored this information
B. As dogs digested food, mutations occurred which changed the dog's physical appearance.
O C. Since dogs lived closely in contact with humans, the dog's genetic information remained the same.
D. During meiosis, new combinations of genetic information occurred, and the offspring's genes expressed this information.

Answers

Answer:

Did humans tame woolly mammoths or other megafauna?

Considering that some people are gifted with handling animals (e.g. horse whisperers), could paleoindians or other Pleistocene peoples have gained the confidence of woolly mammoths or mastodons to use them as transportation and other tasks, the way that Asian elephants are used today?

Fewer resources would be necessary for a human to travel long distances by riding on the back of a woolly mammoth or paleocamel, as the megafauna could graze and get energy. People may also have traveled by boat during late Pleistocene times (the kelp highway along PNW).

How could we test such a hypothesis? Cave art showing a rider on the back of one of the megafauna? A bridle and/or bit? A talisman worn by a camel is known to have been crafted from a meteorite(1), and so talismans or decorations might have adorned the hypothesized woolly steed. Metal was not a known technology during stone tool usage, as far as we know, though.

PLEASE HELP I WILL GIVE BRAINALIST

Answers

ITS C I’m pretty sure

Answer: It's C

Explanation: Someone else said it was C and I don't want to leave any misinformation so I'm writing it's C. Good luck! :D

what is a sound wave

Answers

Answer:

A sound wave is a vibration.

Explanation:

What are the 2 parts to an experiment?

Answers

Answer:

The treatment generally consists of the independent variable, which is the variable that is being manipulated by the experimenter, and the dependent variable, which is observed or measured to see if it is responding to the independent variable.

BRAINLIST PLEASE

Answer:

the independent and dependent variables

Explanation:

____________is when humans choose the traits of an organism.

Answers

Answer:

artificial selection

Explanation:

Go Deep! Look at the Parent Chromsomes and Key pictured below. Would it be possible for these parents to have a daughter with Hemophilia?

Answers

Answer: No, the daughter will be a carrier only.

Explanation: Hemophilia is a sex-linked recessive disorder. The recessive gene is carried on the X chromossome. Males have only one X chromossome, while females have 2. So, for a male individual to have hemophilia, it only needs the recessive gene to be on the X chromossome. In a female, the disorder is expressed when both X chromossomes has the recessive gene.

In the Parent Chromossomes picture shown, the father's X chromossome doesn't have the gene for hemophilia and the mother is heterozygous for the trait, i.e., she carries the recessive gene.

A daughter will inherit an X chromossome from the father and an X chromossome from the mother.

In this family, the daughter will inherit the X with dominant gene H for the father and has a possibility of inheriting another dominant gene H or recessive gene h from the mother.

For the daughter to be hemophiliac, she has to inherit 2 recessive genes. Since in either case she won't, she only inherits 1 recessive gene, the daughter will be a carrier for the trait, not have the disease.

What is the best definition for translation?

Group of answer choices

A. Assembling an amino acid sequence from RNA

B. Making RNA from DNA

C. Making RNA from an amino acid sequence

Answers

Answer:

i think b

Explanation: bc i took bio last year. sorry if its wrong

Mendel established several principles of heredity from his experiments and observations. What did he conclude regarding the inheritance of genes from parents?

Answers

This could be wrong but, he said that we take 50% from each parent.

23 from mom and 23 from dad to make up the full 46. Each of those chromosomes carry a specific genetic code.

Hope it’s right :)

HELP i need help with this it’s due today

Answers

Answer:

It is A, as higher elevations are colder in climate

Explanation:

How does cellular respiration demonstrate the conservation of mass?
GIVING BRAINLIEST

Answers

Answer:

Mass is conserved in living systems through the processes of photosynthesis, cellular respiration, and the carbon cycle. It is demonstrated in cellular respiration through the process of braking down food to provide energy and releasing carbon dioxide.

Explanation:

Answer:

Mass is conserved in living systems through the processes of photosynthesis, cellular respiration, and the carbon cycle. It is demonstrated in cellular respiration through the process of braking down food to provide energy and releasing carbon dioxide. Hopefully this helps you. Please mark me Brainiest Thank you.

Explanation:

En las clases de ciencias estan hablando de varios movimientos que presentan las plantas debido a estimulos de ambiente, Pedro propone, un proyecto de investigacion para mostrar la infliensa de la luz solar en dichos movimientos:parada,semiacostada, y acostada. ¿en que parte final debe colocar el movimiento numer3? A.En los procedimientos b.En los resultados c. En las conclucione d.En los propocitos

Answers

Answer:

En resultados

Explanation:

El experimento se basa en analizar el movimiento de la planta en respuesta a la luz solar, desde distintas posiciones:

planta paradaplanta semiacostadaplanta acostada

Durante su experimento, Pedro debe ir registrando los movimientos que observa en las distintas plantas a medida que recibe la luz del sol. El registro de dichos movimientos ante el estímulo forma parte de los resultados.

- Objetivo o propósito del trabajo: analizar la influencia de la luz solar como estimulo para generar un movimiento en plantas desde distintas posiciones.

- Procedimiento: Ubicación de plantas en distintas posiciones y bajo las mismas condiciones ambientales. Exposición de todas las plantas a la misma cantidad de radiación solar. Observación del movimiento durante un periodo de tiempo determinado.

- Resultados: Registro del movimiento de cada planta en cada posición durante el periodo de tiempo que fueron expuestas a radiación. En esta instancia de vuelca en tablas o gráficos, o se describe qué fué lo que se observó durante el experimento. Cuál fue la respuesta de cada una de las plantas.

- Conclusión: Relación entre lo esperado y lo observado. Comparación con otros trabajos similares.  

When two species occupy exactly the same niche, one species will be eliminated from the community by _____.
A.
a secondary disturbance
B.
the superior competitor
C.
the keystone species
D.
a primary disturbance

Answers

Answer:

Answer is B

Explanation:

Hope it helps

Find the length of the diagonal of a square whose side
is 10 cm​

Answers

Answer:

14.14 cm

Explanation:

YOU CAN MARK ME AS BRAINIEST IF YOU WANT

The diagram below illustrates two different protein molecules found in organisms. Which of the following statements is not correct?
The proteins have different functions
The proteins are both composed of amino acids
The sequence of amino acids in both proteins are the same
The shapes of these proteins determine their functions.

Answers

Answer:

Proteins are one of the most abundant organic molecules in living systems and have the most diverse range of functions of all macromolecules. Proteins may be structural, regulatory, contractile, or protective; they may serve in transport, storage, or membranes; or they may be toxins or enzymes. Each cell in a living system may contain thousands of different proteins, each with a unique function. Their structures, like their functions, vary greatly. They are all, however, polymers of alpha amino acids, arranged in a linear sequence and connected together by covalent bonds.

Alpha Amino Acid Structure

The major building block of proteins are called alpha (α) amino acids.  As their name implies they contain a carboxylic acid functional group and an amine functional group.  The alpha designation is used to indicate that these two functional groups are separated from one another by one carbon group. In addition to the amine and the carboxylic acid, the alpha carbon is also attached to a hydrogen and one additional group that can vary in size and length.  In the diagram below, this group is designated as an R-group.  Within living organisms there are 20 amino acids used as protein building blocks.  They differ from one another only at the R-group position. The basic structure of an amino acid is shown below:

Figure 2.1 General Structure of an Alpha Amino Acid

There are a total of 20 alpha amino acids that are commonly incorporated into protein structures (Figure 2.x). The different R-groups have different characteristics based on the nature of atoms incorporated into the functional groups. There are R-groups that predominantly contain carbon and hydrogen and are very nonpolar or hydrophobic.  Others contain polar uncharged functional groups such as alcohols, amides, and thiols. A few amino acids are basic (containing amine functional groups) or acidic (containing carboxylic acid functional groups). These amino acids are capable of forming full charges and can have ionic interactions. Each amino acid can be abbreviated using a three letter and a one letter code.

Explanation

what comes next?
Light enters the eye.
Light focuses on the retina.

Answers

Answer:

cornea refracts light

not sure

what kingdom grows on land and in water feeding on both plants and animals

Answers

Answer:

Amphibians kingdom

Explanation:

They inhabit a wide variety of habitats, with most species living within terrestrial, fossorial, arboreal or freshwater aquatic ecosystems.

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