Which of the following best describes the function of the cell membrane?
A. The cell membrane provides rigid support to plant cells.
O B. The cell membrane forms the boundary of a cell and is the site of
cell-to-cell communication,
C. The cell membrane combines amino acids into long chains to
make proteins
D. The cell membrane surrounds and supports organelles in
eukaryotic cells

Answer:

B. Temperature and pressure

Explanation:

Answer: B.

density and temperature

Explanation:

took my test got an 80 cus of the other answer

Answer:

Hey! The answer is B

Explanation:

Cell walls only belong to plants, and chloroplasts also only belong to plants. Besides that everything else belongs to both, and that means that B is the only right answer

Answer:

A.) Chloroplasts, cell wall, cell membrane, cytoplasm

Explanation: The plant cell and the animal cell can be differentiated by the presence of organelles in them.although both are classified as eukaryotes, the presence of the cell wall, vacuoles, and chloroplasts are the most remarkable and distinguishing components of the plant cells which are absent in the animal cells.

Answer:

reflection I took the test

C) reflection.

In the picture shown above, the incident ray is equal to the reflected ray. According to the law of reflection, the angle of incidence is equal to the angle of reflection. Therefore, the property of light shown above is a reflected ray.

The frequency of the dominant allele is 0.99, the frequency of the recessive allele is 0.01, and the percentage of heterozygous individuals (carriers) in the Hispanic population is 1.98%.

What is Frequency?

Frequency refers to the number of occurrences of a particular event or phenomenon in a given unit of time or space. In genetics, frequency typically refers to the number of occurrences of a particular allele or genotype in a population. For example, the frequency of a particular allele in a population is the proportion of that allele in the total number of alleles at the same locus in that population.

To calculate the frequency of the dominant and recessive alleles, we can use the Hardy-Weinberg equation:

Since cystic fibrosis is a homozygous recessive condition, we know that  \(q^{2}\)= 1/10,000, or 0.0001. We can solve for q by taking the square root of both sides:

q = √(0.0001) = 0.01

To find p, we can use the fact that p + q = 1:

p = 1 - q = 1 - 0.01 = 0.99

So the frequency of the dominant allele is 0.99, and the frequency of the recessive allele is 0.01.

To calculate the percentage of heterozygous individuals (carriers), we can use the equation:

2pq * 100%

where 2pq represents the frequency of heterozygous individuals. Plugging in our values, we get:

2pq = 2(0.99)(0.01) = 0.0198

So the percentage of heterozygous individuals in the Hispanic population is:

0.0198 * 100% = 1.98%

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Data collection can help us learn about local biodiversity by providing us with information about the species in a particular area, and the current population numbers.

The diversity of living forms found within a particular ecosystem or geographic region is known as local biodiversity. It contains all the plants, animals, fungi, and microorganisms that reside in a certain region. Humans rely on a range of resources and services, such food, water, and pollination, which is why biodiversity is significant.

In order to keep ecosystems healthy and provide habitat for a range of species as well as protection against environmental changes, local biodiversity is also important.

In summary, information can be used to identify areas of biodiversity hot spots, prioritize conservation efforts, and develop strategies to protect species. Data collection can also help us understand the impacts of human activities on biodiversity and determine how to balance development and conservation.

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The most critical factor during photosynthesis of land plants compared to aquatic plants is water.

Photosynthesis is a series of chemical reactions by which plants need water, carbon dioxide and sunlight to produce carbohydrates.

In aquatic plants, water requirements are well satisfied, but it may not occur in land plants.

In conclusion, the most critical factor during photosynthesis of land plants compared to aquatic plants is water.

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Answer:

countries with higher populations are likely to use more resources

Explanation:

The vastness of the threats to the ecosystem is directly linked to human population size and resource uses per person. Resource use, waste production and environmental degradation are accelerated by population growth.

The relationship between human population size and resource is that Countries with high populations are likely to use more resources.

Population size is refers to the total number of people that are living together in a place or people occupying a territory, state, town or country. The higher the population size, the higher the number of resources that will be needed and use.

Therefore, The relationship between human population size and resource is that Countries with high populations are likely to use more resources.

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Answer:

b. Line Graph

Explanation:

on god

Answer:

The answer is false.

Explanation:

In science, nothing is permanent, especially in biology. An ecosystem can be stable, but it is never indefinitely so.

The community in an ecosystem is always stable and unchangeable is false

The community in an ecosystem is not always stable and unchangeable. Ecological communities are dynamic and constantly changing due to various factors such as natural disturbances like wildfires or human activities such as deforestation, pollution, or introduction of invasive species.

Therefore, These factors can lead to changes in the species composition and interactions within the community, which can have far-reaching consequences for the functioning of the ecosystem as a whole. Therefore, ecological communities are not static, but rather they are constantly changing in response to various biotic and abiotic factors.

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Color blindness is an X-linked trait, so there is much higher probability for male color blindness than female colorblindness (males only need one allele, females need two). So, the males are color blind and the females are not.

Color blindness can be simply defined as trouble in seeing or identifying colors like blue, green. and red. There are some cases where a person cannot see and identify any colors at all. This syndrome is also called a color vision problem or color vision deficiency.

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The members that have color blindness are Sam, Tim, Bella, and Joshua.

What is color blindness?

Reduced perception of color or color distinctions is referred to as color blindness or color vision deficit (CVD). It can make it difficult to do things like choose ripe food, dress appropriately, and read traffic lights.  Some academic tasks could be harder if you're color blind. However, problems are typically small, and colorblind people naturally adjust and develop coping techniques.

Given that color blindness is an X-linked trait, men are considerably more likely than women to be affected than vice versa (males only need one allele, females need two). As a result, whereas more women are not color blind, men are.

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Answer:

involves accumulation of rhodopsin

Explanation:

This is because dark adaptation is the ability of the eye to react to low light sensitivity and all the rod pigments of the eye bleached out which is as a result to the bright light and this make the rods nonfunctional in the initial state . Once you are in the dark, rhodopsin regenerates and tthis lead to increase in retina sensitive continuously.

The "exfoliation" or "shedding" of milk teeth is the name of the procedure.

The primary and permanent tooth sets make up the human dentition. Maxillary (upper) and Mandibular (lower) are the two opposing arches in which teeth are arranged. These can be split into their left and right halves along the midline (mid-sagittal plane).

Four Different Teeth Types and Their Purposes

The majority of individuals have 32 permanent adult teeth, which can be classified into four groups:

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Answer:

Identify minerals based on their physical characteristics. A hardness of 2.5 simply means that the mineral is harder than gypsum. Mohs In introductory geology, the key fracture types to remember are irregular, which most minerals exhibit.

Answer:

adult worm live in subcutaneous nodules and microfilarae wander through the skin,where they may be picked up by a feeding vector blackfly

Answer:

Law of Segregation

Explanation:

Gregor Mendel was a scientist known for experimenting the pea plants in relation to the topic on "Heredity." Under this, he came up with the "Law of Segregation." This states that an organism only receives one gene copy of every gamete once it makes gametes. This is also "randomly selected." This is the reason why only one copy of a gene is passed from each parent to the offspring. In order to check the allele combinations, a "Punnett square" is being used.

Answer:

Both are used for breathing.

Explanation:

When rib muscles and the diaphragm contract they increase the volume of the chest cavity, increasing the air pressure outside the body, causing air to rush into the lungs to fill the vacuum created by the increase in volume.

If the organism secretes an excess of ADH, urine would be less diluted and showing a bright yellow color due to salts concentration. Options: less water in it and bright yellow.

Anti Diuretic Hormone is a molecule that helps kidneys to control water loss through urine.

The ADH, also known as vasopressin hormone, is released by changes in serum osmolarity or blood volume. Its function is to keep homeostasis and make kidneys conserve or keep water by concentrating urine and by reducing its volume. Through these actions, the antidiuretic hormone stimulates water reabsorption, according to the organism's needs.

When the organism secretes too much ADH, the body retains too much water, and blood volume increases.

In these cases, urine would have less water and would be bright yellow because there would be a higher concentration of salts and other waste elements.  

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Answer:

72% of the oil was removed

Explanation:

Answer:

Diffusion expends no energy. Rather the different concentrations of materials in different areas are a form of potential energy, and diffusion is the dissipation of that potential energy as materials move down their concentration gradients, from high to low.

Explanation:

Answer:

Phosphorylase kinase

Explanation:

Phosphorylase kinase is a type of regulatory protein kinase which helps in the process of glycogen breakdown.

It sends signals and the process of phosphorylating occurs which then helps in the activation of glycogen phosphorylase and subsequent breakdown of glycogen in the body. This makes phosphorylase kinase the right option.

El niño causes a drop in temperatures and increases in rainfall across Texas.

The unusual warming up of the surface of the water in the eastern tropical region of the Pacific ocean is termed El niño. El niño is a phase of the phenomenon called the El niño Southern Oscillation (ENSO).

El niño is the warmer phase of this phenomenon. The cool phase of the ENSO phenomenon is called the La niña. It results in the cooling of the regions of the water's surface.

El niño impacts the currents of the oceans starting from Australia to Southern America. It is an irregular event and can happen once from two to seven years.

Therefore, in texas, it results in a drop in temperatures and increases in rainfall.

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Answer:

Explanation:

First let's define a few things.

An allele is a variant form of a gene, each gene can have two or more possible alleles, one inherited from each parent. The copies, however, are not necessarily the same. When the copies of a gene differ from each other, they are known as alleles. A given gene may have multiple different alleles, though only two alleles are present at the gene’s locus in any individual. Alleles can sometimes result in different phenotypes (observable traits), with certain alleles being dominant. (overriding the traits of other alleles)

Let's make a table of our bird's alleles.

We can see from the phenotype of her bird's offspring, yellow is dominant over white, and patterned is dominant over solid.

Let's use Y for dominant yellow, w for recessive white, P for dominant pattern, and s for recessive solid. I know dominant and recessive traits usualy use the same letter with recessive traits being lower case, but in this case it makes it easier to determine phenotype.

Our parent birds are dihybrid cross which involves 2 genes coding two traits, with dominant yellow pattern both represented by PPssYYww.

So look at the chart. It has then been color coded by the traits the bird will exhibit. We have:

9 birds with Patterned Yellow Wings

3 birds with Solid Yellow Wings

3 birds with Patterned White Wings

1 bird with Solid White Wings

This is the same ratio Maria found in the phenotypes of her birds.

Now we can answer the questions:

Number of genes and alleles? We can see that there are 2 genes, one gene for pattern, and one gene for color, but there are also 2 alleles the variant of the Pattern and the variant of the color.

Which phenotypes are coded for by the same gene?  

yellow and white; patterned feathers and solid - This one as you can see from the phenotype chart, and as discussed earlier, there are 2 genes, one for color, the other for pattern.

yellow and patterned feathers; white and solid

all by the same gene

each by a separate gene

Answer:

rocks and sediments

Explanation:

On Earth, most carbon is stored in rocks and sediments, while the rest is located in the ocean, atmosphere, and in living organisms.

Answer:

Nonvascular Seedless Plants. Nonvascular seedless plants, as their name implies, lack vascular tissue. Vascular tissue is specialized tissue that transports water, nutrients, and food in plants. As they lack vascular tissue, they also do not have true roots, stems, or leaves.

Answer:

Nonvascular plants have no vascular tissue and lack true roots, stems, and leaves. As a result, they must live in moist places to absorb water and nutrients directly from the surrounding environment. They also grow much smaller because they must transfer nutrients from cell to cell. Seedless vascular plants have vascular tissue, so they can live farther away from water and grow much larger. Seedless vascular plants also have true roots, stems, and leaves.

Explanation:

It was the sample answer on edg 2021

Answer:

I think B

Explanation:

I dunno I guessed Dont use this

Unicellular organisms can move in two distinct ways—movement and locomotion. Movement enables an organism to change its form or shape. ... Unicellular organisms achieve locomotion using cilia and flagella. By creating currents in the surrounding environment, cilia and flagella can move the cell in one direction or another.

Hope I helped.

Answer:

they move through the body till they die of body failure or bacteria

There are exclusively Gram-negative bacteria present in the culture. Maybe you've been decolorizing too long. The Stapylococci in the culture may be older than 24 hours. You failed to include iodine.

Sink drains, refrigerator condensate pans, and other sources of standing water are the principal sources of Gram-negative bacteria contamination in ISO-classified environments.

Gram-negative bacteria (GNB) are among the most serious public health issues in the world because of their high level of antibiotic resistance. Hospitals must take these bacteria seriously because they put patients in the intensive care unit (ICU) at risk and increase morbidity and mortality.

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