Trastorno alimenticio caracterizado por una gran pérdida de peso, que el propio paciente se provoca y que puede conducir a un estado de inanición.
Answer: Anorexia nerviosa.
Explanation:
La anorexia nerviosa es un trastorno o desorden alimenticio en donde se produce un rechazo de la comida debido a un temor excesivo a subir de peso, llegando a un estado de inanición serio. Entonces, se produce un deterioro en la salud y una debilidad causada por una ingesta insuficiente de nutrientes causando una desnutrición que altera diversas funciones del organismo. Es mas común en mujeres jóvenes o adolescentes aunque se reportan casos en ambos sexos y a cualquier edad. No debe confundirse con otro trastorno llamado simplemente anorexia, que es un síntoma que se caracteriza por una falta de apetito debido a alguna causa orgánica.
Este trastorno puede ocurrir por diversas causas que vienen acompañadas por una distorsión de la imagen corporal propia, en donde la persona considera que debe perder más peso de lo que se considera saludable y normal para su edad y estatura, llegando a estados raquíticos. También hay muchos casos en donde además de una dieta extrema, se realice ejercicio de manera excesiva o que utilicen otros métodos para bajar de peso como el abuso de laxantes u otros medicamentos.
Algunos factores de riesgo para el desarrollo de la anorexia nerviosa pueden ser:
Personalidad perfeccionistaImagen propia negativa o baja autoestimaPresiones socialesPadecer algún trastorno de ansiedadMike has a problem with his testosterone. He is unable to produce enough. Which will most likely be affected by his inability to produce testosterone? Select two options.
Answer:
Fruits will be a great choice. Such as strawberries.
Explanation:
Which of the following is NOT an example of natural selection? *
A. Plants with thorns are less likely to be eaten by herbivores than other members of the same species that lack thorns.
B. Bacterial populations in hospitals develop resistance to drugs used to combat infection by them.
C. Scientists breed cows that give greater amounts of milk than their ancestors.
D. Fruit fly larvae with an enzyme to break down alcohol are better able to feed on fermenting fruit than those that lack the enzyme.
E. Female fish that produce more eggs leave more offspring than those that produce fewer eggs.
Answer:
The Answer is C
Explanation:
When scientists breed cows to produce more milk, this has not occured naturally and thus is not natural selection.
Answer:
C. Scientists breed cows that give greater amounts of milk than their ancestors.
Explanation:
The scientists breed cows that give greater amounts of milk than their ancestors is not an example of natural selection. So, option (C) is correct.
When comparing fossil A to fossil B, which is most likely correct?
Air
Soil
Up
Fossil A
-Fossil B
What is the difference between gene mutations and chromosome mutations?
A. Gene mutations are preventable and chromosome mutations are not
B. Gene mutations can happen easily and chromosome mutations are more difficult
C. Gene mutations only affect one gene while chromosome mutations affect many genes
Answer:
C. Gene mutations only affect one gene while chromosome mutations affect many genes.
Explanation:
The difference is that the gene mutations only affect one gene while chromosome mutations affect many genes.
the water in ponds and lakes is...
Answer:
freshwater
Explanation:
Answer:
Lakes and ponds are inland bodies of standing or slowly moving water.
hope it helps
Which structures do plant cells have for making food that animal cells do not?
Answer:
chlorophyll is the answer
What are the chances that the parents will have a hairless baby guinea pig?
A. 75%
B. 25%
Answer:
I believe it is B
Explanation:
hope this helps
Answer:
B. 25%
Explanation:
There is a 50-75% or about half chance that the babies bred by a Skinny Pig and a haired Skinny pig gene carrier, will have hairless Skinny pig babies. The rest of the babies will just be skinny pig gene carriers. There is only a 25% chance that 1 or so hairless skinny babies will be born in these litters.
Which of the following can cause evolution to occur? (Select all that apply)
Mutation
If organisms choose a mate for a specific reason
People moving into or out of an area
If the population shrinks
Answer:
MutationIf organisms choose a mate for a specific reasonPeople moving into or out of an areaIf the population shrinksExplanation:
These factors are the "forces of evolution." There are four such forces: mutation, gene flow, genetic drift, and natural selection.
These are the factors that can cause evolution to occur:
MutationIf organisms choose a mate for a specific reasonPeople moving into or out of an areaIf the population shrinkswhich feature of stem cells enable them to replace cells in tissues such as skin?
The feature of stem cell which enable them to replace cell in tissues are that they can divide indefinitely to generate new cells and they can convert into the different types of cells that make up the body as they divide.
What is a stem cell ?A stem cell is a cell that has the unique capacity to grow into different types of cells in the body.
They may be utilised in the future to replace cells and tissues that have been damaged or destroyed owing to illness.
Stem cells are classified into three types which are Embryonic stem cells, Adult stem cells, Induced pluripotent stem cells.
Embryonic stem cells provide new cells to an embryo as it grows and develops into a newborn.
Adult stem cells generate new cells as an organism matures and replace damaged ones.
Induced stem cells are stem cells created in the laboratory by scientists.
Learn more about Stem Cell here:
https://brainly.com/question/2139588
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Which of these organs are parts of the brain?
а) cerebrum
b) cerebellum
c) brainstem
d) all of above
Answer:
all of above
Explanation:
Amino acids build
A. proteins
B. monomers
C. nucleic acids
Answer:
A. proteins
Explanation:
Amino acids builds up the proteins.
Which of these is an abiotic factor in a rainforest ecosystem?
Tree cover
Biodiversity
Trophic levels
Precipitation
It's 58 degrees outside and a meteorologist says a cold front is headed to you area. What should you wear to prepare? *
sandals
rain jacket
snow jacket
hat and gloves
What risk is most likely to happen when using wind as an energy source
Answer:
As with all energy supply options, wind energy can have adverse environmental impacts, including the potential to reduce, fragment, or degrade habitats for wildlife, fish, and plants. Furthermore, spinning turbine blades can pose a threat to flying wildlife like birds and bats.
Only forager bees leave the nest for their jobs
A
True
B
False
Why do identical twins separated at birth show DIFFERENCES as seen in the pictures?
A. Their DNA changed because of the different environments they lived in.
B. Different genes were turned on or off because of he different environments they lived in.
Answer:
B. Different genes were turned on or off because of the different environments they lived in.
Explanation:
Your DNA does not change but it can turn on some parts and off others depending on your enviroment.
Answer:
B. Different genes were turned on or off because of he different environments they lived in.
Explanation:
The identical twins separated at birth show different genes were turned on or off because of he different environments they lived in.
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Answer:
Deoxyribonucleic Acid [DNA]
Explanation:
DNA, is a complex molecule that contains all of the information necessary to build and maintain an organism.
viruses are a chain between living and nonliving beings . they are obligatory paracites and have either RNA or DNA .
What does DNA prove about organism ancestry?
A. Plants and animals are not related to one another
B. That all organisms are related to one another
C. DNA and RNA are completely different forms of genetic coding
D. Extraterrestrial life will have DNA as well
Answer:
B. That all organisms are related to one another
Answer:
B. That all organisms are related to one another
Explanation:
Fossils, anatomy, embryos, and DNA sequences provide corroborative lines of evidence about common ancestry, with more closely related organisms having more characteristics in common. DNA underlies the similarities and differences in fossils, anatomy, and embryos.
What are the characteristic of a cell?
Answer:
All cells have a cell membrane, cytoplasm, and DNA. cells differ in how their genetic information is contained. All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing. When viewed together, these characteristics serve to define life.
hope this helps
have a good day :)
Explanation:
Please help the picture is above I’ll mark as brainliest.
The most important feature that permits a gene to act as a molecular clock is The most important feature that permits a gene to act as a molecular clock is having a reliable average rate of mutation. having a larger proportion of exonic DNA than of intronic DNA. its being acted upon by natural selection. having a large number of base pairs. its recent origin by a gene duplication event
Answer:
The answer is "The first choice".
Explanation:
The hypothesis of such a molecular clock says because DNA and protein sequences develop at a pace generally constant over time as well as between different organisms. The whole idea is thus incredibly beneficial and for estimation of the historical periods, if the molecular biological hypothesis is valid, then the most significant feature enabling DNA to act as a molecular clock it has a reliable mean mutation.
What organelle reforms around the chromatids at opposite ends of the cell?
A. Chloroplast
B. Vacuole
C. Centriole
D. Nucleus
A utility company has proposed building a natural gas power plant next to a lake. The picture below shows the proposed power plant.
The company claims burning natural gas will release only harmless gases such as water vapor (H2O) and carbon dioxide (CO2). Why would environmental scientists disagree with this claim?
A
The emission of carbon dioxide leads to rapid cooling of the Earth’s lakes and oceans.
B
The emission of carbon dioxide leads to an increase in the temperature of the atmosphere.
C
The emission of water vapor leads to a decrease in the humidity of Earth’s atmosphere.
D
The emission of water vapor pollutes the atmosphere, causing harm to plants and animals.
Answer: B is right
Explanation: Carbon dioxide is a greenhouse gas which is involved
with increasing temperature of atmosphere
Crossing over occurs during Prophase II.
A. True
B. False
Answer:
B. False
Explanation:
Crossing over not occurs in prophase II. It occurs only during prophase I.
which landform can be created by wind
Answer:
Aeolian landforms
Explanation:
It is the landform created by wind and named for the Greek God of wind 'Aeolus'.
Human sperm and egg cells have ____ chromosomes.
A. 42
B. 21
C. 23
Answer:
They each have 23 chromosomes
Explanation:
Answer:
C. 23
Explanation:
Human sperm and egg cells have 23 chromosomes.
Seed tray can be used for sowing of cucumber seeds ______
True or false
Answer:
true
Explanation:
You can germinate cucumber seeds by direct seeding into a garden bed or in the soil in a seed tray.
Adrenergic receptors Select one: a. can be activated by the release of epinephrine. b. have two structural forms - muscarinic and nicotinic. c. when activated stimulate skeletal muscles to contract. d. can be found in both the sympathetic and parasympathetic divisions. e. are activated by the release of acetylcholine.
Answer:
The correct answer is a. can be activated by the release of epinephrine.
Explanation:
Epinephrine is a hormone and neurotransmitter naturally secreted by the body through the adrenal glands, synthesized and stored in the adrenal medulla and released into the systemic circulation. Epinephrine is a non-selective adrenergic agonist, stimulating alpha1-, alpha2, beta1, and beta2-adrenergic receptors. The systemic actions of catecholamines are mediated by the binding of these compounds to plasma membrane receptors, of the GPCR type widely distributed throughout the body and known as adrenergic receptors, which are activated by the catecholamines adrenaline (epinephrine) and noradrenaline . These receptors cause different effects depending on the G protein subtypes to which they are associated and the signal transduction mechanism linked to the specific G protein.
What is the role of transport proteins in
active transport?
A. They move molecules against the gradient.
B. They collect molecules of water to assist in the process.
C. They store the ATP needed to power the process.
