Answer:
Darwin conducted an experiment with breeding pigeons.
Explanation:
The pigeons provided the perfect animal to test his theory of selection for quite a number of reasons including its trait diversity from wing structures to color patterns to size to flight patterns. From these experiments he concluded that by natural selection of randomly occurring traits that make species better suited for survival and reproduction, evolve in the astounding diversity of organisms on Earth today.
(not my words)
Answer:
its b
Explanation:
Investiga un uso beneficioso (medicina o industrial) para las bacterias, virus y Hongos microscópicos. Explica brevemente su utilización.
Answer:
- Hongos: antibiótico penicilina
- Bacterias: producción de insulina para uso humano
- Virus: vectores basados en adenovirus para el desarrollo de vacunas
Explanation:
Los microorganismos son fundamentales para el desarrollo de diferentes tipos de aplicaciones industriales y medicinales. Por ejemplo, la penicilina es una sustancia sintetizada por el hongo Penicillium notatum, la cual es ampliamente utilizada como antibiótico debido a sus propiedades antibacterianas. Las penicilinas son antibióticos del grupo de los betalactámicos que tienen como núcleo un anillo central de beta-lactama, las cuales son capaces de destruir una amplia variedad de bacterias. Por otra parte, las bacterias pueden ser usadas para la generación de moléculas orgánicas con fines médicos. Por ejemplo, cepas de Escherichia coli han sido modificadas mediante técnicas de ingeniería genética con el objetivo de producir insulina humana, una hormona central en el metabolismo de la glucosa. Mediante técnicas de recombinación genética, el gen responsable por sintetizar insulina humana ha sido introducido en bacterias. Las cepas de E. coli son relativamente fáciles de cultivar en el laboratorio y por lo tanto permiten obtener grandes cantidades de esta hormona (insulina). Finalmente, existen ciertas tipos de virus inocuos para nuestro organismo los cuales han sido recientemente utilizados como vectores para el desarrollo vacunas. Mediante esta técnica de ingeniería genética, un determinado vector viral (por ejemplo, un virus de la familia de los adenovirus) es modificado genéticamente con el objetivo de insertar un fragmento de un agente infeccioso o 'antígeno' el cual individualmente es incapaz de producir daño. Las vacunas diseñadas a partir de vectores virales son inofensivas para el organismo pero son capaces de desencadenar una respuesta inmune contra el antígeno recombinante, generando de este modo una memoria inmunitaria en contra el agente infeccioso.
What might happen if genetically modified deer mice with white fur where accidentally released into the wild population of mice? Explain what would happen to each population of mice, brown and
gray. Discuss how the addition of this genetic variation will affect the future generations of mice.
Answer:
They die.
Explanation:
If genetically modified deer mice with white fur were accidentally released into the wild population of mice, they will die and decrease in population because these genetically modified deer mice with white fur can't survive harsh conditions of the mice. Their colour also attract the predators at night so they catch these genetically modified deer mice with white fur and feed on them which automatically decrease its population.
Question 5 of 30
What information can a scientist learn directly from a single fossil?
A. The organism's shape and size
B. How the organism is related to others
C. The life expectancy of similar organisms
D. How many offspring the organism produced
SUBMNT
Answer:
C. The life expectancy of similar organisms
A fertilizer company is trying to find a new herbal pesticide to add to its product. Company managers know that peppermint oil or lavender oil will be used. They also know that the time of day the fertilizer is applied, morning and night, affects the pesticide. An experiment will compare all combinations of these choices. Three types of insects will be subjected to each treatment and scored for quality. What are the treatments
Answer:
Peppermint oil and morning, peppermint oil and night, lavender oil and morning, lavender oil and night
Step-by-step explanation:
Fertilisers are substances, which could be organic or inorganic, that is added to soil to increase crop yield.
Pesticide can be defined as substances that are used to control pests in an environment. Example of a pesticide includes:
- fungicides,
- herbicides( these are used to kill unwanted plants) and
- insecticides.
From the existing knowledge that the time of day the fertilizer is applied, morning and night affects the pesticide, and the Company managers know that peppermint oil or lavender oil will be used.
The insects should be subjected to the following treatments to effectively compare all combinations of these choices listed above:
- Peppermint oil and morning,
- peppermint oil and night,
- lavender oil and morning,
- lavender oil and night
What does biodiversity mean?
O
same organisms at each level
different organisms at all levels
O differences within one species
similarities within one species
Answer:
Biodiversity is a kind of variation of animals, or plant species within a given habitat
Explanation:
Identify the main floral organs
of a flower.
"global warming isn’t real because it just snowed in April”, how could you respond using your knowledge of climate and weather?
Answer:
Becuase in canada here it snows and yeah.
Explanation:
PLEASE HELP!!!! How do you think cell phones affect attention in class? Describe an experiment you could perform to test your hypothesis. Include your hypothesis, operational definitions of your independent and dependent variables, who your participants would be, and how you would randomly assign them to experimental or control groups.
how many molecules of DNA would result from one molecule after five cycles of PCR?
What are the two steps of protein synthesis?
A. Cellular Respiration & Photosynthesis
B. Transcription & Replication
C. Transcription & Translation
Answer:
C. Transcription & Translation
Explanation:
Answer:
A cellular respiration & replication
Explanation:
how might a country run out of water
Answer
Along with decreasing rainfall comes rising temperatures. By 2050 the U.S. could be as much as 5.7°F warmer, and extreme weather events, such as heatwaves and drought, could be more intense and occur more frequently. As temperatures warm, evaporation increases, further decreasing water in lakes, reservoirs, and rivers.
do you think it is right for people to keep animal's in their homes?
Answer:
There are many health benefits of owning a pet. They can increase opportunities to exercise, get outside, and socialize. Regular walking or playing with pets can decrease blood pressure, cholesterol levels, and triglyceride levels. Pets can help manage loneliness and depression by giving us companionship.
Answer:
Yes,just yes no explanationOur understanding of taxonomy has changed and will continue to change as we further understand living things at the genetic level.
A. True
B. False
Answer:
a
Explanation:
4. Which makes up most of Earth's surface? (1) the
atmosphere (2) the lithosphere (3) the hydrosphere
Option 1
Option 2
Option 3
Answer:
3) hydrosphere
Explanation:
About 71 percent of the Earth's surface is water
Identify the genotype for each numbered item.
RY
Ry
TY
гу
1.
2.
O
RrYy
RY
RRYY
1
RrYY
3
RETRY
Ry
RRYy
RRY
RrYy
2
O
Y
RrYY
RrYy
TYY
myy
RrYy
Rryy
mrYy
туу
Based on the dihybrid cross, the genotype of the numbered item are as follows:
RY × Ry = RRYyRy × ry = Rryyry × RY = RrYyry × rY = rrYyWhat is genotype?The genotype of an organism is the sum total of the genes inherited by the individual from the parents.
The genotype of an organism is made of the two parents alleles, where the organism receives an allele for each gene from each of the parents.
From the dihybrid cross, the genotype of the numbered item are as follows:
RY × Ry = RRYyRy × ry = Rryyry × RY = RrYyry × rY = rrYyLearn more about genotype at: https://brainly.com/question/2235939
What would happen if a populations chose their mates randomly?
A. Allele frequency would be constantly changing at random
B. The allele frequency would stay relatively the same over time because there are no traits that are being selected for.
C. Randomly mating allows the most beneficial traits to be passed on because more individuals are going to select for them.
D. Allele frequency would begin to favor the dominant trait.
Answer:
B. The allele frequency would stay relatively the same over time because there are no traits that are being selected for.
Explanation:
Like recombination, non-random mating can act as an ancillary process for natural selection to cause evolution to occur. Any departure from random mating upsets the equilibrium distribution of genotypes in a population. This will occur whether mate selection is positive or negative assortative.
What process is not used to maintain homeostasis within cells
A. Diffusion
B. Osmosis
C. Dialysis
D. Active Transport
Answer: D
Explanation:cells cannot change their external environment to maintain homeostasis. They communicate with other cells via cell signaling, they take up nutrients for sustainability and growth, cells also breakdown unwanted molecules as a way of waste management.
Gut bacteria provide all of the following benefits Except
Answer:
Despite the acidic of the stomach, diverse phylotypes of resident microbes thrive in the stomach.
Explanation:
Of the following, which statement is false?
A) Biotic factors are living things
B) A biome is a major regional or global community of organisms
C) An example of an abiotic factor is sunlight
D) Heterotrophs can make their own food
E) Other:
Answer:
D) Heterotrophs can make their own food
Answer:
d is your answer it's definitely d
ESTOS ALIMENTOS DULCES AZUCARADOS NO SÓLO SON MALOS PARA LA SALUD,SINOQUE YANDIEN PUEDEN SER E________.AMENUDO SE DISFRASAN CON NOMBRES QUE PUEDEN SER S________ ,
La respuesta correcta para esta pregunta abierta es la siguiente.
Desafortunadamente, no anexaste opciones o incisos para responder la pregunta. Sin embargo, podemos comentar lo siguiente.
ESTOS ALIMENTOS DULCES AZUCARADOS NO SÓLO SON MALOS PARA LA SALUD, SINO QUE TAMBIEN PUEDEN SER ENGAÑOSOS. A MENUDO SE DISFRAZAN CON NOMBRES QUE PUEDEN SER SABROSOS.
Es muy importante que seas cuidadoso con los alimentos que consumes como parte de tu alimentación. Muchas empresas, a través de sus marcas, comparten publicidad engañosa para atraer más clientes bajo la promesa de alimentos sabrosos y nutritivos. Y la verdad es que no. Te están engañando.
No hay nada como basar tu dieta diaria en frutas, verduras y un equilibrio entre proteínas, carbohidratos, azúcares naturales y grasas.
Si es necesario, consulta a tu médico o a un nutriólogo para que te expliquen qué tan malo pueden ser los alimentos con muchos químicos.
¿Son sabrosos? Sí, pero también están llenos de sal, grasas, azúcares en excesos que le hacen mucho daño a tu salud.
En México ya existe una ley que obliga a todos los productos colocar unas etiquetas de color negro con blanco en todos los productos con la leyenda: "exceso de sodio," "exceso en grasas," exceso en azúcar."
Esto, con el propósito de que la gente se entere antes de comprarlos.
What is a scientific theory?
A. A way to get the perfect results that you want.
B. An idea that explains several things at once.
C. A false hypothesis.
D. A hunch or guess.
Answer:
i want to say B because they experiment and get multiple types of results
Answer:
The answer would be The letter B that I understand the question
O daltonismo é um distúrbio moderado ligado ao cromossomo X que se caracteriza pela cegueira para as cores verde e vermelha. Considerando-se o cruzamento de uma muher carreadora do alelo para o daltonismo ao se casar com um homem de visão normal, cuais as chances de as filhas desse casal serem carreadoras é de ?
Answer:
50%
Explanation:
Olá. Primeiramente é necessário informar que perguntas em português devem ser postadas no campo "world Languagens". Isso porque esse não é o servidor basileiro e sim o servidor americano. Caso contrario, a sua pergunta pode nunca ser respondida e até mesmo excluida do site.
Em segundo lugar, para que seja possivel que você repsonda a essa pergunta você precisará preencher um Quadrado de Punnett, como mostra a figura abaixo.
Como você sabe, as mulheres possuem os cromossomos XX e os homens XY. Como a mulher apresentada na pergunta acima possui o alelo para o daltonismo, mas não apresenta daltonismo, podemos considerar que apenas um dos cromossomos dela possuem esse alelo. O alelo para o daltonismo é recessivo, sendo assim, podemos considerar que essa mulher possui os alelos XDXd. Homem com quem essa mulher se casa, não possui daltonismo, logo os alelos dele são XDY, como mostrado na figura.
Ao preencher o quadrado de Punnett, você verá que existe a possibilidade desse casal possuir duas filhas, uma delas pode possuir os alelos XDXd, igual a mãe e, portanto, ser carreadora do alelo para o daltonismo.
Sendo existe uma chance, em duas filhas desse casal ter uma filha carreadora de daltonismo. Isso é igual a 1/2, que resulta em 0,5, ou 50% de chances de ter uma filha carreadora de daltonismo.
help me ls 20 points !!! i will mark brainliest just someone help me quick
Answer:
Mutations and sexual reproduction is the right answer
Hope it helps:)
Please mark me the brainliest if you won't mind:)
Explain why the process of fertilization is the same for self-pollinating flowers and cross-pollinating flowers.
Answer:
Self-pollination occurs when the pollen from the anther is deposited on the stigma of the same flower or another flower on the same plant. Cross-pollination is the transfer of pollen from the anther of one flower to the stigma of another flower on a different individual of the same species.
Which process involves TWO DNA divisions?
A. Mitosis
B. Meiosis
Answer:
b) meiosis
Explanation:
Answer:
B. Meiosis
Explanation:
Meiosis involves two DNA divisions.
For each group write the # of valence electrons
Answer:
Explanation:
Bascially just count starting from 1 (skip the transition metals) and put helium at 2 valence. Everything else is just a regular pattern.
Amalia has the flu, a communicable disease that causes a cough and a runny nose. Which best describes how she likely got it?
She does not exercise.
She has a poor diet.
She touched the doorknob in a classroom.
She inherited it from her parents.
Answer:
is this multiple choice if not i have a better way of answering the third one like; as someone in her class has the flu the person touched the doorknob ,after a while she also touched it and without washing her hands she touched her nose then the disease had entered her body
YOU CAN SIMPLFY IT SINCE IF YOU TO BE IN A TEST YOU CANNOT REMEBER ALL THAT... :)
BUT I TRIED
Explanation:
Answer:
She touched the doorknob in a classroom.
Explanation:
anyone can get a cold By Touching something that was affected, or getting near someone who has been affected.
I hope this helped!
Which describes a group of organs that work together to perform a common function? tissue O organism O organ system O cell
22. What is the importance of cilia and flagella for
microorganisms?
help me ..................
Answer:
1,1,6
Explanation:
saw ur other post w the actual Q; ans 1, 1 and 6.
Answer:
Explanation:
The first two pictures show an ovum and a sperm so it is 1 for both boxes. The third picture shows embedding into the uterus wall and that is 6.
I was wondering what is this until you posted the questions in another post.
