100 POINTS! PLEASE HELP

Answer:

C. Specimens are placed in a vacuum

Answer:

C. Specimens are placed in a vacuum

Explanation:

Since transmission electron microscopes must be used in a vacuum the specimen cannot be living. In a vacuum, there is no oxygen so nothing could survive it.

Answer:

wage employment programmes

food security programmes

Answer: meiosis creates new combinations of genetic material in each of the four daughter cells. These new combinations result from the exchange of DNA between paired chromosomes. Such exchange means that the gametes produced through meiosis exhibit an amazing range of genetic variation.

Explanation:

B. The sika deer out competed the white-tailed deer in consuming flowering plants and shrubs.

Answer:

C

Explanation:

Primers can be exploited for sequence verification of plasmids

Answer: B: They use them as Vectors.

Explanation:

I took the test.

The process which connects glycolysis and the citric acid cycle is acetyl CoA formation.

Glycolysis is the reaction pathway busy which a glucose molecule is converted to two pyruvate molecules with the production of two net ATP molecules.

This is a cyclic reaction pathway in which a mole of acetyl CoA is oxidized to two molecules of carbon (iv) oxide with the production of the reducing equivalents NADH and FADH2 as well as two ATP molecules.

The pyruvate from glycolysis is oxidized to an acetyl CoA molecule by the pyruvate dehydrogenase complex. The acetyl CoA produced then enters the citric acid cycle.

Therefore, the process which connects glycolysis and the citric acid cycle is acetyl CoA formation.

Learn more about glycolysis, citric acid cycle and acetyl CoA at: https://brainly.com/question/11125539

Answer:

It's B

Explanation:

I took one for the team.

Answer:

The answer is D Photosynthesis uses light energy, while cellular respiration uses chemical energy.

Explanation:

Answer:

B. happens on accident

Explanation:

it is not A. because "deliberately" means that the intention of the action(s)  was to break the law not just make a mistake.

It is not C. because its the exact opposite of a mistake.

It is not D. because you typically don't break the law with an honest mistake, maybe if you didn't see the speed sign so you go over the limit or something but those occasions are far and in between.

May I have a brainliest?

Answer:

translation

Explanation:

Answer:

Translation

Explanation:

Answer:

The correct answer is: C. Active Transport.

Explanation:

Because Na+ and K+ are ions, which makes them charged molecules, they can only diffuse through the cell membrane when using specialized protein channels. This is called facilitated diffusion and is a form of passive transport because sodium and potassium move following their gradients, which are made of the difference in concentration between the inside of the cell and the outside of the cell. For example, potassium is highly concentrated inside the cell and poorly concentrated outside the cell, so potassium diffuses from the inside to the outside to even the concentrations.

But the question asks in which process Na+ and K+ move in and out of the cell SIMULTANEOUSLY, so the answer is actually active transport. Active transport is the opposite of passive transport. While passive transport occurs naturally and doesn't need ATP (energy) to happen, active transport needs ATP because it moves molecules AGAINST their gradient. One of the most famous and important structures involved in active transport is the Na+/K+ pump, which consists of a specialized protein using energy to enter 2 potassium ions and take out 3 sodium ions at the same time. This Na+/K+ is fundamental to maintain the gradients, which are important for the correct functioning of many cells.

Answer:

The stomach and small intestines absorb the glucose and then release it into the bloodstream. Once in the bloodstream, glucose can be used immediately for energy or stored in our bodies, to be used later

Answer:

The answer is A.

Explanation:

ATP, the mitochondria

The molecule depicted in the figure above is ATP and the cell organelle in which it would most likely be created is: the mitochondria.

Cell organelles can be defined as the internal organs that are typically responsible for the performance of various functions (tasks) within the body of a living organism such as an animal, plant, and humans, especially for the survival of the organism.  

Some examples of cell organelles found in the body of living organisms include the following:

Mitochondria is commonly referred to as the "power house" of a cell because it is saddled with the responsibility of providing and transforming all of the energy required by living organisms in the form of adenosine triphosphate (ATP).

In conclusion, it is very important that energy (ATP) is provided by mitochondria for the survival and optimum performance of a living organism.

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Answer:

Air is matter because it's make up of a mix of different gases. These are made up of elements such as hydrogen, oxygen, and nitrogen, which are made of matter.

Explanation:

is there a word count requirement?

Answer:

Air is matter because it takes up space and has mass.

A way to prove this is by inflating a balloon. Before inflating, the balloon was empty and shapeless. When the balloon was filled with air you know it filled with something. That would be matter.

Answer:

I think it is 3

Explanation:

The other questions can be explained as an opinion but 3 can be studied and it can be experimented.

Like a prokaryotic cell, a eukaryotic cell has a plasma membrane, cytoplasm, and ribosomes. However, unlike prokaryotic cells, eukaryotic cells have: a membrane-bound nucleus. numerous membrane-bound organelles (including the endoplasmic reticulum, Golgi apparatus, chloroplasts, and mitochondria)

The function of the carbohydrates do NOT include option A. catalyzing reactions

It is considered to be sugar molecules. Along with fats and proteins, carbohydrates should represent the three important nutrients that should be found in food and drinks. Glucose or blood sugar represents the source of energy.

It functions include structural materials, stores of glycogen, and sources of energy.

Therefore, the correct option is a.

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Answer:

The seaweed in the Kelp forest goes through photosynthesis, takes in carbon, other organisms eat the seaweed and take in the carbon.

Answer:

This is essential because all organisms depend on one another and is vital for the survival of living organisms. These organisms are linked by the flow of nutrients which is engineered by the nutrient cycles.

Answer:

The first one

Explanation:

Plants take the enegry from the sun, to make food, but if the sun goes away tthe plants don't have a source to make food from.

Answer:

Luminosity is an intrinsic(natural) measurable property of a star independent of distance. The concept of magnitude, on the other hand, incorporates distance. The apparent magnitude is a measure of the diminishing(decrease) flux of light as a result of distance according to the inverse-square law.

Answer:

Explanation:

Sickle cell anemia is a  result of the point mutation, and in a change in just one nucleotide in a gene for hemoglobin. This mutation will cause the hemoglobin in the red blood cells to distort to a sickle shape when deoxygenated. "The sickle-shaped blood cells clog in the capillaries, cutting off circulation."

Answer:

The answer is B. Gravity is the force that pulls objects toward Earth's center.

Explanation:

Gravity is the force by which a planet or other body draws objects toward its center. The force of gravity keeps all of the planets in orbit around the sun.

Answer:

Gravity is the force that pulls objects toward Earth’s center

Explanation:

Answer:

Over time, PCBs would collect in top predators such as salmon, making them unsafe for human consumption.

Explanation:

PCBs last a long time in the environment before breaking down and may find their way into the food chain. Low levels of PCBs can be found in fish, shellfish, meat, poultry, milk, dairy products, and other foods. Since PCBs have not been made since 1977, the levels in the environment have been declining over the past several years. Predators at or near the top of the food chain (e.g. birds, fish) have the highest levels of PCBs in their bodies.

Answer:

salt

Explanation:

bc the water depends on the salt to change i think

Answer:

there's not a picture I cant see it

Answer:

the answer is plateaus.