1. A type of movement of substances across the cell membrane that requires no energy is --

A. cell mediated movement

B. facilitated diffusion

C. active transport

D. receptor protein action

Answers

Answer 1

Answer:

B. facilitated diffusion

Explanation:


Related Questions

Why are bacteria called the borderline between plants and animals​

Answers

Answer:

it's because they have the both characteristics of plants and animals

example:-

bacteria have cell wall that is a characteristic of the plants.but at the same case they also produce some nucleic acids that are only found in animals.

so, they are the borderline between plants and animals.

Explanation:

brainliest plz

why are the offspring of asexually reproducing organisms genetically identical to their parent?

Answers

Answer: Because thear is only one parent.

The phospholipid by layer is What

Answers

Phospholipids are made up of two layers, the outer and inner layers. The inside layer is made of hydrophobic fatty acid tails, while the outer layer is made up of hydrophilic polar heads that are pointed toward the water.

1. Ai là người đã đặt nền móng cho di truyền học

A. Men đen

B. Moocgan

C. Newton

D. Anhxtanh

Answers

Explanation:

here your answer

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PLS HELP WILL MARK BRAINLYIEST What is a rule for making a positive atom which has positive charge?

Answers

Answer:

the octect rule

Explanation:

Explanation:

If there are more protons than electrons, then the element is a positive ion. If there are more electrons than protons, then the element is a negative ion.

hans and zacharias janssen contribution to cell theory

Answers

Answer:

1590’s

What year did Hans and Zacharias Janssen contribute to the cell theory? Hans and Zacharias Janssen are known for inventing the compound optical microscope. They made it in the 1590’s. This contributed to “The Cell Theory” by making it easier and more practical whilst observing cells.

Explanation:

Cell theory states that all biological organisms are made up of cells, which is the structural and functional unit of life.

Scientists Hans and Zacharias Janssen invented the compound microscope that played a vital role in observing cellular functions.

Hans and Zacharias Jansen invented the compound microscope, which consisted of the eyepiece and an objective lens.

The scientists discovered the compound microscope in the late 16th century, which then helped many scientists to magnify and observe the microscopic structures.

Thus, the Janssens discovered the compound microscope.

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hello, i need help with this :]

Answers

Answer:both would be an unshaded square

Explanation:because if they both have the same thing and it doesn’t say either are shaded then they aren’t shaded

in a typical animal, mitosis produces _________, while meiosis produces____________.

Answers

In a typical animal, mitosis produces two identical daughter cells, while meiosis produces four unique daughter cells.

Meiosis is a type of cell division that involves the parent chromosome being halved and then divided again to form four unique daughter cells which have only one copy of chromosome from the parent.

This process occurs in sex cells such as the sperm and egg cells.

Mitosis is also a type of cell division but occurs with the parent cells to form two identical daughter cells.

This type of cell division have produces the same number of chromosomes the parents have and occurs in cells of the body which undergoes growth or during replacement of worn-out tissues.

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what is the most dangerous plant known by man kind?

Answers

Answer:

1). The oleander, also known as laurel of flower or trinitaria, is a shrub plant (of Mediterranean origin and therefore, resistant to droughts) with intensely green leaves and whose leaves, flowers, stems, branches and seeds are all highly poisonous, hence it is also known as "the most poisonous plant in the world".

2). The Dendrocnide Moroides is known as "the world's most dangerous plant," with even morphine rendered ineffective against its venom, Nature reports. The shrub has numerous names including the Gympie Gympie, Stinging Bush, Queensland Stinger and the Giant Australian Stinging Tree.

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The most dangerous plant known by man kind is The Dendrocnide Moroides.

Poultry products are a likely source of infection by:

Answers

Poultry products are a likely source of infection by Salmonella enterica

which causes typhoid.

Most farm animals such as pigs, cattle and poultry have been found to be

infected with Salmonella enterica as a result of their contact and exposure

to a dirty environment.

This is why it is advisable to apply much heat on poultry products such as

eggs to kill the micro-organism.

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Please heeelp. :(
I don't understand anything about this topic, its urgently.

Answers

Question 3 you could say that…
The closer you are to the equator (30N-30S) the more solar radiation present. This leads to, less clouds appearing in them areas and the climate bring quite hot.

If a hom.ozygous white horse [tex]C^WC^W[/tex] and a hom.ozygous black horse [tex]C^BC^B[/tex] are bred together, what is the likelihood that their offspring will be roan with both colors represented in their hair if this gene follows a codominant inheritance pattern?
A.) 50%
B.) 25%
C.) 100%
D.) 0%

Answers

Answer:

c

Explanation:

looked at the answer when i finished the test and got it wrong lol

The roan coat color in horses is also an example of codominance. A “red” roan results from the mating of a chestnut parent and a white parent. Therefore, option (C) 100% is correct.

What is co-dominant inheritance?

In the genetic phenomenon known as codominance, both alleles of a gene pair found in a heterozygote are allowed to fully express themselves. Because of this, the phenotype of the offspring is a combination of the phenotypes of both the mother and the father. As a result, the trait does not exhibit dominant or recessive characteristics.

The blue roan horse has hair that is both white and gray, whereas the red roan horse's hair is both white and a reddish-brown color. The hairs of the offspring take on the coloration of both of its parents' coats. This is a situation of co-dominance.

Therefore, the resulting heterozygous progeny will have a 100% codominant inheritance pattern.

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Entre las personas , la practica de estilos de vida denominados saludables ¿que consecuencias tiene sobre su metabolismo?

Answers

Answer:

El estilo de vida es una expresión utilizada para describir la forma en que se entiende o se percibe la vida. Este concepto no tan filosófico, sino más bien al estilo característico en que desarrolla  de vida. Estos aspectos abarcan, relaciones personales, del consumo, y la forma de vestir. Ademas de ello, en la descripción de las actitudes, aptitudes, y preferencias que refleja un individuo en la sociedad.

Por su parte, se puede decir que el metabolismo es el conjunto de reacciones químicas a partir de los alimento, las cuales se desarrollan en el cuerpo con la finalidad de producir energía necesaria para el desarrollo del ser vivo.

Con todo esto, se puede decir que el estilo de vida, específicamente el consumo de alimentos pueden afectar de manera importante el metabolismo en un sentido que de acuerdo a las características de los productos que se consuman, las reacciones químicas generadas pueden variar.

Asimismo, dichos factores pueden ser de riesgo o generadores de bienestar, ya que alteran de manera directa el proceso dinámico de degradación de alimentos.  

Explanation:

what is the role of the enzyme aromatase in sexual differentiation in reptiles?

Answers

Answer:

Aromatase helps to convert sex steroids, a group of hormones that influence sex development and reproduction, from male sex hormones (androgens) to female sex hormones (estrogens)

Explanation:

hope it helps you

the contractile organelle of skeletal muscle fibers is

Answers

Answer:

The myofibrils are the contractile organelles in the muscle fibers.

Which RNA nucleotide is complementary to thymine?

adenine

uracil

guanine

cytosine

Answers

Answer:

uracil

Explanation:

uracil ofc ig yuh

which statement is true regarding the agricultural production of genetically modified organisms

Answers

Explanation:

GMO stands for genetically modified organisms. The DNA of these organisms have been genetically altered through the techniques of genetic engineering which makes the organism better than its wild variety. These genetically altered organisms are also known as transgenic as they consist.

Genetically modified organism  are in widespread use nowadays. But some reports shows that they might causes some health risks and may even lead to cancer. Thus, option D is correct.

What is genetically modified organisms?

Genetically modified organism or GMOs are plants or animals with recreated or specially designed genes. The genetic modification is carrying for acquiring desirable characteristics and flourishment in growth.

Genetically modified crops will grow easily with inserted properties and characteristics. However they contains certain toxins that will effects human beings.

Health issues such as reproductive disorders, hepatic and pancreatic disorders, allergic reactions and even cancer. Therefore, genetically modified organism creates problems rather than their benefits.

Hence, option D that is, GMOs may be hazardous to human health in ways that we cannot yet understand is correct.

To find more about GMOs, refer the link below:

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your  question is incomplete and your complete question probably was:

Which of the following are true regarding genetically modified organisms?

a) Widespread use of GMOs may promote a loss of biodiversity.

b) No scientific evidence has been found that GMOs pose any special risks to humans or the environment.

c) GM plants make up a significant part of our food supply.

d) GMOs may be hazardous to human health in ways that we cannot yet understand.

e) GMOs can be more nutritious than standard crops.

Organs such as the heart serve e function of working together as components of-

Answers

Answer:

the circulatory system

Explanation:

for instance your heart, your lungs,your blood, and your blood vessels all work together as a team.

Ellie loves to canoe out at Sebago Lake. One summer day she went out on the water and gave her dad a call
on her cell phone to let him know she was okay. Although she was comfortable out on the water, her dad,
back on land, was suffering tremendously from the heat. Explain why Janet felt cooler than her dad, even
though they were within a mile of each other.

Answers

Ok I M very confused

what is the life cycle of a liverhook​

Answers

Answer:  

Image result for what is the life cycle of a liverhook​

Following ingestion, the young flukes migrate to the liver, through which they tunnel, causing considerable tissue damage. The infection is patent about 10-12 weeks after the metacercariae are ingested. The whole cycle takes 18-20 weeks.

Explanation:


What are the 2 main groups into which cells are classified? What is the major difference
between them?

Answers

Answer:

Eukaryote and Prokaryote

Eukaryotes have a nucleus and prokaryotes don't

Answer:

Prokaryotic and Eukaryotic

Explanation:

Guys please help me this is my second time asking the same thinggg pls

How are coastal ecosystems a major source of oxygen for the rest of Earths waters?

Answers

Answer:

The ocean produces oxygen through the plants (phytoplankton, kelp, and algal plankton) that live in it.

Explanation:

These plants produce oxygen as a byproduct of photosynthesis, a process which converts carbon dioxide and sunlight into sugars the organism can use for energy. (hope this helps <3)

During the time of pandemic how Embroidery helps you become productive as a member of the family?

Answers

Answer:

It helps deal with stress, taking your mind on the task at hand. Trying something new can be fun and even productive around the house.

16. Which of the following stimuli would cause the liver to produce more glycogen?

Some people say it’s B or C, which one is correct?

Answers

The answer should be C

Why are chromosomes arranged in homologous pairs in meiosis

Answers

Answer:

They allow for the recombination and random segregation of genetic material from the mother and father into new cells.

Explanation:

Someone help and plz make sure it’s right :) will mark brainiest

Answers

Answer:

total # of species

Explanation:

species richness is a number of different species represented in the ecological community landscape or region.

Answer: Species richness is the number of different species represented in an ecological community, landscape or region.

what is the geosphere, also called the lithosphere

Answers

Answer:

The lithosphere is part of a larger sphere called the geosphere. ... The lithosphere refers to the outer part of the geosphere, which includes the upper part of the mantle and the crust. The lithosphere is also part of the Earth where the rock cycle is found.

what can be said about altitude, atmospheric pressure, and the partial pressure of oxygen? check all that apply.

Answers

As both altitude and atmospheric pressure increase, the partial pressure of O2 will decrease.

Though I could not locate the options online to provide an exact answer, I can offer a general overview of the question at hand.

The interactions between altitude and the partial pressure of oxygen are inversely proportional. This means that as one increases, the other will decrease. The proportion of oxygen is 21% of the air content at all altitudes. However, as the altitude increases, the atmosphere becomes thinner, meaning that the partial pressure of O2 will decrease given that 21% of a thinner atmosphere results in less oxygen.

On the other hand, the relationship between atmospheric pressure and oxygen is that they are directly proportional. This means that as one decreases, the other does as well. In this case, since atmospheric pressure is the sum of the partial pressures of all gases, we can conclude that as it decreases, so to will the partial pressure of oxygen.

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11. In the carbon-fixing stage, ATP and NADPH are used to convert CO2 into?

12. What is another name for the Calvin Cycle and why?​

Answers

Explanation:

G3P

This process is called carbon fixation, because CO2 is “fixed” from its inorganic form into organic molecules. ATP and NADPH, which were made during the light dependent reactions, use their stored energy to convert carbon dioxide into a three-carbon compound called G3P.

Answer:

11. This process is called carbon fixation, because CO2 is “fixed” from its inorganic form into organic molecules. ATP and NADPH, which were made during the light dependent reactions, use their stored energy to convert carbon dioxide into a three-carbon compound called G3P.

12. The Calvin cycle is another name for the light-independent reactions. This is a biosynthetic multi-step reaction that fixes carbon dioxide to ribulose.

What U.S regions would you recommend against placing spotters?

Answers

Answer:

I would reccomend the southeast region against placing spotters.

Explanation:

Answer:

I would recommend the northeast and nortwest region of the us against placing spotters.

Explanation:

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