The discovery of cells was made possible by the invention of microscopes today several different types of microscopes are used by scientists

Answer:

I believe it is 1) DNA makes RNA and RNA changes into protein

Explanation:

Answer:

D

Explanation:

It seems the most likely out of all of them.

ANSWER:

this is true

Answer:

B

Explanation:

Answer:

B) Hypothesis

Explanation:

Answer:

Carbon dioxide is added to the atmosphere naturally when organisms respire or decompose (decay), carbonate rocks are weathered, forest fires occur, and volcanoes erupt. Carbon dioxide is also added to the atmosphere through human activities, such as the burning of fossil fuels and forests and the production of cement.

Explanation:

Answer:   Carbon dioxide is added to the atmosphere naturally when organisms respire or decompose (decay), carbonate rocks are weathered, forest fires occur, and volcanoes erupt. Carbon dioxide is also added to the atmosphere through human activities, such as the burning of fossil fuels and forests and the production of cement.

Explanation:

Answer:

A: Using microorganisms to clean up an oil spill.

Explanation:

Bioremediation is a subcategory under biotechnology which alters environmental conditions with the usage of living organisms. It's a process that focuses on breaking down contaminants - making it an effective method to clean up oil spills due to its efficiency and affordability compared to other options.

The nitrogen cycle is important to humans in the following way: it converts nitrogen into a form that humans can obtain by eating other organisms (option B).

Nitrogen cycle is the natural circulation of nitrogen in a series of processes by which nitrogen and its compounds are interconverted in the environment and in living organisms, including nitrogen fixation and decomposition.

During the nitrogen cycle, atmospheric nitrogen is converted to nitrogen oxides by lightning and deposited in the soil by rain, where it is assimilated by plants and either eaten by animals (and returned as faeces) or decomposed back to elemental nitrogen by bacteria.

The usable form of nitrogen that is assimilated by plants becomes accessible to humans when they consume the plants, hence, depicting the importance of the nitrogen cycle.

Learn more about nitrogen cycle at: https://brainly.com/question/1615727

#SPJ1

Friction is the answer

Answer:

Friction

A-P-E-X

It is necessary for cells to have nucleus acids in their nucleus because they carry the genetic blueprint of a cell and carry instructions for the functioning of the cell.

A nucleic acid is a chain of nucleotides that biological systems use to store genetic information. It produces the DNA and RNA molecules, which hold the data necessary for cells to produce proteins.

A "polymer" of "nucleotides," or a long molecule made up of them, is referred to as nucleic acid. All life on Earth needs nucleic acids to store genetic information; in other words, nucleic acids serve as the "source code" or fundamental blueprint for the creation of cells.

Your genetic information, which you acquired from your parents, is stored and transmitted by nucleic acids. Genes are unique pieces of nucleic acids that are in charge of creating every protein in your body. 

To learn more about Nucleic acid visit: https://brainly.com/question/11309892

#SPJ9

A plasma membrane is a bilipid layer infused with certain protein molecules. Cell membrane exhibits the characteristics of the hydrophilic and hydrophobic molecule.

The compounds like water can easily diffuse through the cell membrane.

The correct option is:

Option A. Water

The cell membrane is a semi-permeable membrane, which selectively allows the molecule to diffuse. The cell membrane is composed of the lipid bilayer and protein channels.

Polar molecules like water can easily diffuse through this protein pore without interacting with the lipid bilayer.

Water can easily diffuse through the plasma membrane, the process of osmosis.

Therefore, the correct option is A.

To know more about plasma membrane, refer to the following link:

https://brainly.com/question/14556172

Answer:

Adaptations

Explanation:

Answer: first 2 statements ie. It is essential that our diet provides these amino acids.

There are 20 essential amino acids.

Body can get essential amino acids through diet. Peanut butter contains essential amino acids in its composition. Thus, first and third option are correct.

Amino acids are fundamental in the synthesis of proteins in the body.

Everything in our body is made up of proteins. Thus, these proteins are made by amino acids through a complex process called translation.

There is total twenty different amino acids and they are required for the proper functioning of the body.

Amino acids are important in the metabolism of food. They help in maintaining a healthy digestive system.

Amino acids are required for normal growth and repair of worn-out cells in the body.

Several amino acids act as a precursor to hormone synthesis. They also function as signalling molecules.

Amino acids make up proteins and proteins are the crucial source of energy for the body.

Amino acids are helpful in maintaining healthy hair, skin and nails.

Therefore, amino acids are crucial for living organisms.

Learn more about amino acids, here:

https://brainly.com/question/15687833

#SPJ2

Xanthium and burdock seeds has spines and gets stuck to the body of animals or clothes of humans.

Plumule and radicle is part of an embryonal axis which gives rise to the root system.

Megasporophyll or Carpel is the whorl of a flower which has the female sex organs

Pistil is the female organ of a flower which consists of ovary, style and stigma.

Fertilisation is the process of fusion of male and female gametes in the ovules.

A carpel is the female reproductive organ of a flower that is part of the pistil. It is a hollow, vase-shaped structure that consists of an ovary at the base, a long, slender style, and a sticky stigma at the top. The ovary contains one or more ovules, which are the structures that develop into seeds after fertilization.

The carpel plays a crucial role in sexual reproduction of flowering plants. When pollen lands on the stigma it germinates and grows down the style to the ovary, where the male and female gametes unite to form a zygote. This process is called fertilization and leads to the development of a seed inside the ovule.

Different flowers have varying numbers of carpels, ranging from one to many, and they can be fused together to form a compound pistil. The carpel is essential for the production of fruits and seeds, which are important for plant reproduction and the continuation of the plant species.

Learn more about  Carpel from given link

https://brainly.com/question/1221547

#SPJ1

Answer: It stores the cell's DNA, and it coordinates the cell's activities, which include intermediary metabolism, growth, protein synthesis, and reproduction (cell division).

Hope this helps!

Answer:

Blood pressure that measures frequently above normal may result in a diagnosis of high blood pressure or hypertension which may lead to other health problems such as heart disease, heart attach, and stroke.

Answer - high blood pressure

A national rainforest in Puerto Rico is MOST closely associated with ecotourism. The correct answer is c).

Ecotourism is a form of tourism that is focused on responsible travel to natural areas that conserves the environment and improves the well-being of local people. The goal of ecotourism is to educate visitors about the natural and cultural heritage of a particular area and to promote conservation efforts.

A national rainforest in Puerto Rico would be an ideal location for ecotourism because it offers visitors the opportunity to explore a unique and diverse ecosystem while also supporting conservation efforts and providing economic benefits to local communities. In contrast, a water park, hunting grounds, cruise ship, or jet ski rental shop may not be focused on responsible travel or conservation efforts and may have negative impacts on the environment and local communities.

Therefore, the correct answer is c) A national rainforest in Puerto Rico.

For mored details regarding Ecotourism, visit:

https://brainly.com/question/23394092

#SPJ1

A.this statement is correct since non-polar molecules diffuse easily through the semi-permeable membrane

B.this statement is false since this is diffusion, a form of passive transport that does not require ATP

C.this is false for the same reason

D.This is true since this is passive transport

E.This is false because proteins and carbohydrates can't simply pass through the phospholipid bilayer since they are big charged molecules

F.This statement is true since those are small molecules that can easily pass through the semi permeable membrane

G.this statement is false since molecules that diffuse are usually non poalr

Answer:

Disfunction of the cell and also transfer of materials wont work properly.

Explanation:

If the nucleas is severely damaged,activities of the cell won't work properly since the nucleas controlls activities of the cell.

If the lysosome is damaged,worn out tissues from the cell won't get rid.

If the vacuile is damaged osmotic pressure of the cell will be interfered with.

If endoplasmic reticulums are damaged,transport of proteins and lipids won't take place.

The correct asnwer is d, basal nuclei.

Parkinson's disease occurs due to the lower level of dopamine in brain. It causes unnecessary tremors that originate especially from the region called thalamus. Therefore, thalamus is the correct answer.

In Parkinson's disease the tremors are different from any other kind of tremors, they are especially known as essential tremors. It is the disorder that causes the rhythmic contraction of muscles in an uncontrolled way, causing difficulty to the person in performing simple tasks.

There are some possibilities that can cause Parkinson's disease such as - Mercury poisoning, anxiety disorder, any kind of brain disease. Even though, there are evidence that 60 - 80% of cases are due to sudden reduction in the dopamine producing cells.

Parkinson's can be diagnosed by observing the person's symptoms. A neurologist can give the most correct diagnosis for Parkinson's. It has tremors in many places of the body, but most commonly affected areas are- hand and fingers, mouth or tongue, legs.

Learn more about Parkinson's and dopamine at,

https://brainly.com/question/12104662

The countries with a population density growth of over 250 in 200is Cherokee, Forsyth, Hall, Barrow, Paulding and Henry.

Natural increase: when the birth rate exceeds the death rate, leading to an increase in population density.

Migration: when individuals or groups move from one location to another, leading to an increase in population density in the area of migration.

Urbanization: as urban areas grow, population density increases due to the concentration of people and infrastructure in a smaller area.

Increase in life expectancy: as medical advancements and improved living conditions increase life expectancy, population density may increase.

Economic factors: an increase in economic opportunities and resources can attract more people to a particular area, leading to an increase in population density.

It is important to note that while an increase in population density can lead to various economic and social benefits, it can also cause issues such as overcrowding, strain on resources, and environmental degradation.

Learn more on population density here: https://brainly.com/question/13902749

#SPJ1

Answer:

When an ozone molecule absorbs UV-B, it comes apart into an oxygen molecule (O2) and a separate oxygen atom (O). Later, the two components can reform the ozone molecule (O3). By absorbing UV-B in the stratosphere, the ozone layer prevents harmful levels of this radiation from reaching Earth's surface.

Explanation:

Answer:

The last answer. By absorbing some of the UV light that harms living things.

Explanation:

As the harmful UV light heads for earth, the Ozone Layer absorbs a great amount of the harmful UV radiation that comes from the sun, and If it weren't for the Ozone Layer, we would probably all be practically blind from the radiation hitting our eyes.

-Hope this helped & Happy Holidays!

Earth's orbit is not a perfect circle. It is elliptical, or slightly oval-shaped. This means there is one point in the orbit where Earth is closest to the Sun, and another where Earth is farthest from the Sun.

pls mark pls pls pls

Acetyl-CoA, also known as acetyl-coenzyme A, connects glycolysis and the Krebs cycle. The molecule is an acetyl group carried by coenzyme A and is sometimes referred to as CoASH or CoA.

The process through which glucose is turned into energy is known as glycolysis. ATP, NADH, water, and two pyruvate molecules are all produced. The principal source of energy for cells and a crucial part of aerobic respiration is the tricarboxylic acid (TCA) cycle, sometimes referred to as the Krebs cycle or the citric acid cycle. The cycle IN glycolysis transforms the chemical energy of acetyl coenzyme A into the reducing ability of nicotinamide adenine dinucleotide (NADH).

learn more about glycolysis here:

https://brainly.com/question/4109143

#SPJ4

Answer:

Kinetic energy is a form of energy that an object or a particle has by reason of its motion. If work, which transfers energy, is done on an object by applying a net force, the object speeds up and thereby gains kinetic energy.

Explanation:

Answer:

hope it helped

Explanation:

Gregor Mendel is known for his study on pea plants about the inheritance.

To understand the inheritance, he had experimented with pea plants.

He had performed a cross-pollination production method between two different plants of the pea and prevented self-pollination in it.

The answer is Option a, concentration of dissolved salt in the solution is greater than the concentration in the cells. Here the statement describes the characteristics of a hyper-tonic solution.

In comparison to another solution, a hyper-tonic solution has a higher solute concentration. The hypo-tonic solution is the opposite solution with a lower concentration. Scientists must compare the contents of cells to their surroundings. A cell is said to be hypo-tonic if it is placed in a hyper-tonic solution.

The environment is hypo-tonic, or more weakly concentrated, if the cell's cytoplasm is a hyper-tonic solution. Due to the fact that solutes and water have a tendency to diffuse or flow along gradients, this is extremely important. One solution will eventually result from the combination of two solutions.

The solutions will become isotonic when the water passes between the two solutions if the solutions are separated by a permeable barrier that only enables water to pass through. Despite having varying volumes, isotonic liquids have the same concentration.

The electrical activity of these cells relies on the positive and negative charges of the ions in the hyper-tonic solution.

Hyper-tonic Solution Examples

1. Human Kidney

The human brain contains unique proteins called osmoreceptors that are able to gauge the osmolarity of the environment surrounding the cell in order to control the amount of water in the body. Because there isn't enough water in the blood to hydrate the solutes, the environment can become a very hypertonic solution.

2. Sea Turtle Osmoregulation

Salt water is a solution that is more hyper-tonic than fresh water. This suggests that a cytosol that is more hyper-tonic than salt water is required for cells to operate. In contrast to freshwater turtles, sea turtles, for instance, live in a considerably more hypertonic environment.

To know more about Hyper-tonic solution refer to :

brainly.com/question/29309024

#SPJ4

Answer:

C.GCA

Explanation:

Answer:

its C

Explanation: