Which structure of a flower releases pollen? anther sepal pistil ovary.

Answer is B) decay at a constant rate

Answer:

B

Explanation:

Answer:

Lungs

Explanation:

If you are referring to an undeveloped fetus in a mother uterus then the lungs would be the last to develop. That is due to it not to be breathing air until around week forty.

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Answer:

Explanation:

Natural selection is where positive traits survive more, allowing those to become more common. Mutation is where radioactivity changes genes in a random way.

Natural selection allows positive mutation to become more common. Adaptation is where natural selection works for a species specifically more a new habitat.

Answer:

A) The temperature of the air and the temperature of the cloud must be below zero

Explanation:

When precipitation begins to fall in the higher clouds, if the temperatures are below freezing, it will freeze as it falls. Another thing, if the conditions are right, other precipitation can cause the hail to grow in size

Answer:

it is C.   "A form of precipitation requires melting and refreezing as they fall towards the ground."

Explanation:

Hail must melt and refreeze as it falls to the ground.

In my opinion, Dorsy is right in his claim that Billy was the fittest shark.

Physical fitness is a state of health and the ability to perform different aspects of life and daily activities.

Billy was the fittest shark among other sharks because it lives and survives for a long period of time as compared to other species of shark sow we can conclude that Billy was the fittest shark.

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Answer:

Sweating, burning fat

Explanation:

Answer:

more crops

Explanation:

up to a certain point, crops and other plants grow better

Answer:D

Explanation:

Charles Darwin's most significant contribution to the study of biology was his proposal of the theory of natural selection as the primary mechanism of evolution. In his book "On the Origin of Species," published in 1859, Darwin presented a substantial body of evidence showing that species change over time and that natural selection, acting on variations within populations, is the main cause of evolutionary change. Hence option D is correct.

Natural selection is a mechanism of evolution that occurs when individuals with certain heritable traits are more likely to survive and reproduce than those without those traits. This results in a gradual change in the characteristics of a population over time.

The process of natural selection occurs because of variation within a population. Individuals that possess traits that are advantageous in their particular environment, such as better camouflage, faster running speed, or stronger immune systems, are more likely to survive and produce offspring that inherit those beneficial traits.

On the other hand, individuals with traits that are less advantageous are less likely to survive and pass on their genes to the next generation.

Although Darwin did propose the idea of inheritance of acquired traits, he later recognized that this mechanism was not significant in evolution. Darwin's work was a significant turning point in the study of biology, and his theory of evolution by natural selection has since become the foundation of modern biology.

Hence option D is correct.

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Answer:

The Earth is made up of many rocky layers. .

Explanation:

The solid, outer layer is called the crust. Below the crust lies a layer of very hot, almost solid rock called the mantle

Answer:

The lymphatic system is a primary mechanism for tumors to move, or metastasize, to other parts of the body.

Explanation:

Answer:

Proteins

Explanation:

Proteins give the body structure

Answer:

- Peristalsis.

Explanation:

- Peristalsis is a series of wave-like muscle contractions that move food through the digestive tract. It starts in the esophagus where strong wave-like motions of the smooth muscle move balls of swallowed food to the stomach.

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Answer:

NO

Explanation:

We Need all the options

Answer:

If the newly formed metamorphic rock continues to heat, it can eventually melt and become molten (magma). When the molten rock cools it forms an igneous rock. ... Metamorphic rock can change into igneous or sedimentary rock. Igneous rock forms when magma cools and makes crystals

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Molecular methods for the detection of methicillin-resistant

Staphylococcus aureus (MRSA) gained increasing attention because it has

helped in the effective treatment of the infection.

This is an infection which is caused by the bacteria Staphylococcus

aureus with symptoms such as boils and skin infections.

Methicillin-resistant Staphylococcus aureus (MRSA) makes the infection

difficult to treat because of resistance to some antibiotics which is why

molecular methods for detection is important to use alternative treatments.

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Answer:

What are the options and what are the different celestial bodies?

Explanation:

you can't expect someone to fully answer a question where they need more information to answer it in the first place> if you edit your answer, you should be able to add those needed pieces of information to the question!

that or you might get flagged for having a confusing or incomplete answer, i wouldn't do that i'm just warning you for future reference!

Answer:

I think it is A.

Explanation: A anticodon is the complimentry base to mRNA.

Image result for describe the 4 chambers of the heart

The right ventricle pumps the oxygen-poor blood to the lungs. The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle. The left ventricle pumps the oxygen-rich blood to the body

Answer:

When toxins damage your enzymes, they prevent the production of hemoglobin in your blood, which can accelerate aging. It also can lead to the failure of energy production and lower your protection against oxidated stress. Failure of these normal body functions increases your risk of diseases like: Cancer.

Explanation:

Toxins modify gene expression. Our genes switch off and on to adapt to changes in our bodies and the outer environment. But many toxins activate or suppress our genes in undesirable ways. Toxins damage cell membranes so they don't respond properly.

Answer:

Convergent evolution created all of these flying species.

Given what we know, we can confirm that the scandal committed by the Secretary of the Interior who worked under President Taft was that he sold Alaskan coal lands that were supposed to be national parks.

National parks are the way in which the government can preserve lands and protect the conservation of the organisms that inhabit those lands. The selling of these lands marked a major scandal at the time as they were considered shady dealings, shrouded in secrecy, that undermine conservative efforts.

Therefore, we can confirm that the answer is C, as he sold the Alaskan coal lands that were supposed to be protected national parks.

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Describe the hypothesized sequence of chemical and biological events that preceded the origin of eukaryotic cells. Simple organic molecules joined to form complex molecules due to reactions fueled by energy sources. Eventually, amino acids and then proteins formed in cells. RNA probably existed before DNA.

Answer:

Simple organic molecules joined to form complex molecules due to reactions fueled by energy sources. Eventually, amino acids and then proteins formed in cells. RNA probably existed before DNA.

The answer to your question is B.

Enzymes in saliva kill some bacteria and protect the mouth from infection. When food reaches the stomach, much of it is sterilized by the hydrochloric acid in digestive juices. Further into the digestive tract, the friendly bacteria living in the intestines provide protection from invading bacteria

It removes a high percentage of oxygen from water. (More than 80% of oxygen is removed from the water as a result of countercurrent exchange.)

Answer: Scientists observed that fossil assemblages change from later to later in a reliable and predictable pattern from location to location on Earth.

The principle of faunal succession states that the different types of fossils found on rock layers have been deposited at the same time and if we found the same fossils in two different rock layers present on different continents, it supports the fact that these continents were connected when those rock layers were formed.

The principle of faunal succession states that the different types of fossils found on rock layers can determine the ages of these rocks and have been deposited at the same time.

If we find similar fossils on different continents, it indicates that the rock layers were deposited at the same time. For example, if we find the dinosaur species in different rock layers that means those rock layers were deposited at the same time because dinosaurs could not live at two different times on different continents.

Fossils are preserved in sedimentary rocks, therefore, as the layers build up, they preserve a record of these organisms that lived there at a specific period.

Therefore, the principle of faunal succession supports the claim that a rock layer on one continent formed at the same time as a layer on another continent.

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Answer:

Small plants

...............

Answer:

b. small plants is the correctanswer

Answer:

False.

Explanation:

Visible light is not blocked by the Earth's atmosphere, although clouds and dust can scatter some of the light back.

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Answer: True, our atmosphere blocks most ultraviolet light (UV) and all X-rays and gamma-rays from reaching the surface of Earth.

Answer:

4. Catalase is a common enzyme found in nearly all living organisms exposed to oxygen which catalyzes the decomposition of hydrogen peroxide to water and oxygen.

5. hydrogen peroxide

6. the reactant is hydrogen peroxide H2O2

7.the products are water and oxygen, H2O and O2

Explanation:

5. catalase breaks down two hydrogen peroxide molecules to form oxygen.

7. H2O2> H2O + O2 , catalase acts as a catalyst.

Answer:

they both have dna and other stuff

Explanation:

yea

The majority of the chemical digestion of protein occur in small intestine in presence of pancreatic enzyme.

A necessary nutrient for practically every aspect of your body is protein. Before being released into your bloodstream as individual amino acids, it is digested in your mouth, stomach, and small intestine.

Once a protein source enters your stomach, it is broken down into smaller chains of amino acids by hydrochloric acid and proteases enzymes. Peptides, which are dismantled by proteases, are what connect amino acids together.

The majority of protein digestion takes place in the small intestine, where the chyme travels after leaving the stomach. More enzymes are present in the digestive juices that the pancreas secretes into the small intestine, which will further break down polypeptides.

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