Which of the following correctly describes the energy relationship between first level consumers and third level consumers in this ecosystem?

A.) Third level consumers have 100 times as much energy available as first level consumers.
B.) First level consumers have 10 times as much energy available as third level consumers.
C.) Third level consumers have 10 times as much energy available as first level consumers.
D.) First level consumers have 100 times as much energy available as third level consumers.

Answer:

New genetic research showed that organisms with similar characteristics were not related to each other.

Explanation:

Linnaeus system of classification was based on morphological features such as the morphology of stamen and carpels. however, with new genetic advancement, it was shown that two morphologically similar organisms may have a separate evolutionary history and were not related to each other. Hence, the three-domain system was introduced to classify organisms based on a large number of features (morphological, biochemical, molecular, etc.)

Answer:

A the hole in the ozone layer is decreasing

B

Explanation:

Answer: Hippos spend lots of time in the water and now it turns out (or researchers argue), they are the closest living relative to whales. ... Thewissen says that whales are more closely linked to an extinct pig-like animal, often known as India's pig or Indohyus, while hippos are closely related to living pigs.

Explanation:

The suspect has only been questioned for a short period of time, cuz the second answer, he has been questioned before, the third one doesn’t make sense cuz it’s just age and fourth doesn’t make sense

Answer:

C - The suspect is under 18 yrs of age

Explanation:

Confessions after long periods of questioning might be used, however, this was only 30 minutes. The suspect has been questioned previously, so he knows the process. He is in fact under the age of 18, and not considered an adult, and juvenile confessions are commonly false. PLUS - I got it right on the test!

Answer:

The answer is juxtamedullary nephrons. Hope this helps.

A species is added to the endangered list when the numbers of the species decrease drastically, making the species dangerously close to getting extinct

Answer:

The esophagus.  

Explanation:

Which is a long tube that connects the mouth to the stomach

Answer:

Option D, Totipotency

Explanation:

Totipotency is the ability of a cell to differentiate into all other cells with in an organisms. A fertilized egg which has the potential to give rise to any cell with in an organism is called a totipotent fertilized egg. These totipotent cells are produced in large amount during the initial stages of embryonic development when maximum development is required and also they have the ability to form an entire organisms.

Thus option D is correct

DNA and rna is not the same?

Answer:

epigenetic inheritance

Explanation:

This phenomenon is known as genomic imprinting. Epigenetic control and inheritance is the basis of genomic imprinting: DNA methylation and histone methylation lead to inactivation (silencing) of a certain genes. The epigenetic pattern is imprinted and maintained in parents.

As a consequence of genomic imprinting, specific genes from only one parent are expressed. This is different than Mendelian type of inheritance in which in diploid cell one gene is from father while another is from mother.

Answer:

Eukaryotic cells

Explanation:

There are two main types of cells among living organisms:

c. girls may be more easily hurt and distraught by frequent changes in friendships

Generally, girls may be more hurt and distressed by frequent changes in friendships as they highly value emotional bonds. However, it's important to note everyone deals with these changes differently depending on personal factors like resilience, support system, and coping strategies.

Based on various studies, option C is generally more accurate: Girls may be more easily hurt and distraught by frequent changes in friendships. This does not mean all girls will react the same way, but on average, changes in friendships can significantly impact girls, especially during their formative years. Girls often value close bonds and shared emotions in friendships, and disruptions of these connections can lead to feelings of hurt, betrayal, and loss. Moreover, changes in friendships could influence their self-esteem and overall emotional well-being, which in turn may potentially affect their academic performance and other aspects of their lives.

However, it's important to acknowledge that everyone, regardless of gender, has a unique way of dealing with changes in friendships. The individual's resilience, support system, and personal coping strategies play a crucial role in how they navigate through these changes.

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Answer:

Speed of Biochemical Reaction (Lowering the Activation energy)

Explanation:

Enzymes are catalyst that speeds up the rate of biochemical reaction in living organism. They are protein in nature and they are involved in every process that take place in living organisms such as breaking down of food to building up of protein. In living organism, enzymes speed up the rate of chemical reaction by lowering the activation energy thereby bringing the reactants close to each other and weaken there chemical bonds which will enable the reactions to be faster.

Enzymes affect biochemical reactions in living cells primarily by lowering the activation energy, thereby increasing the reaction rate. They are specific to certain molecules and their activity is influenced by factors including temperature and pH.

Enzymes, which are typically proteins, play a crucial role in living cells by affecting the rates of chemical reactions. These are known as catalysts in biochemical reactions. The primary way enzymes affect these reactions is by lowering the amount of energy needed to start them, which is known as the activation energy.

The enzymes' activity can be influenced by factors such as temperature and pH, as well as the concentration of the reactants and the enzyme itself. Each enzyme is specific to its substrate, meaning it only acts on certain molecules within the cell. This precise interaction allows enzymes to speed up vital reactions that need to occur within the cell.

Therefore, the presence and activity of these enzymes ultimately determine which reactions will proceed and at what rates. For example, enzymes like salivary amylase act as catalytic enzymes to affect the rate of digestion in the human body.

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Answer:

B. nitrogenous bases

Explanation:

Nitrogenous bases are chemical compounds formed by slightly alkaline rings that contain nitrogen. Together with sugar and a phosphoric acid, they make up ribonucleic acid (RNA) and deoxyribonucleic acid (DNA). It is through these nitrogenous bases that the two strands of DNA are linked. This is exactly what we can see in the picture.

There are five types of bases, which are classified into two groups:

Pyrimidine bases are derived from pyrimidine and are formed by a ring (hexagonal) of carbon and nitrogen. The purine bases are derived from purine, are larger and have two rings (one hexagonal and one pentagonal) of carbon and nitrogen.

Answer:

The answer is b disruptive selection. Hope this helps.

Answer:

The far point of the normal eye is infinity

Astigmatism refers to a defect in which the surface of the cornea is not spherical. Instead, it is more sharply curved in one plane than another.

Nearsightedness can be corrected with a diverging lens

Explanation:

A normal eye has its far point (at infinity) and its near point (about 25cm in front of the eye).

Astigmatism is an eye imperfection which refers to the curvature of the cornea or lens. This vision condition is characterized by the irregularly shape of the cornea or lens (not equally curved  in all directions). As a consequence, refractive error occurs  which appears as nearsightedness (myopia-inability  to focus on distant objects) or

farsightedness (hyperopia-inability to focus on nearby objects).

The far point of a normal eye is infinity and astigmatism is a defect of the cornea. Myopia (nearsightedness) is corrected with a diverging lens, while hyperopia (farsightedness) is corrected with a converging lens. For a hyperopic eye, rays from an object at infinity is focused in front of the retina, while for a myopic eye, these rays are focused behind the retina.

Here are the true statements about the eye and vision correction:

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Answer:

Calcium ions

Explanation:

The excitation-contraction coupling process is the process by which the electrical activation of muscles (the depolarization of the action potential) leads to the activation of contraction.

An action potential in the skeletal muscles or muscle excitation leads to Ca release from the sarcoplasmic reticulum via calcium channel protein. Released Ca regulates the contraction of the muscle.

Answer:

The correct answer is the green light.

Explanation:

Plant themselves have a green color pigment in their leaves called chlorophyll which absorbs visible light.

Pigments absorb mostly the red and blue color light and reflect green light. This the reason why plants appear green to us and least likely to make food. Most of the autotrophs contain this green pigment.

Thus, the correct answer is the green light.

green light is the correct answer....hope this helps :))))

Answer:

C

Explanation:

Bones are moved at the joints by muscles. It requires at least two muscles acting antagonistically on the bone to move the joint. When one muscle contracts, the other relaxes. Muscles are attached to bones through tendons. An example is the humerus (bone of the upper arm) is moved at the elbow by the antagonistic action of the biceps and triceps.

Answer:

gene; DNA strand; chromosome; genome

Explanation:

Gene is a sequence in DNA molecule that has a function. It codes for a molecule, usually protein that performs a certain function within the cell. It carries the information that is necessary for the gene expression. Gene is copied into mRNA molecule during the process of transcription. mRNA is used for the protein synthesis (translation).

DNA is packed into chromosomes during the preparation for cell division. Chromosome is highly condensed form of chromatin.

Genetic is a whole genetic material of an organism.

Answer:

It is involved in the process of conjugation-exchange of genetic material between two bacteria

Explanation:

Conjugation is one of the ways by which bacteria exchange their genetic material (horizontal gene transfer). Two bacterial cells must physically connect in order to perform the conjugation. The linking occurs through a pilus.

Pilus is an appendage on the surface of bacteria cell and it is also called fimbria. Pilus is  filamentous, tubular and composed of oligomeric proteins-pilin.

Donor cell contain pilus that will attach to the recipient bacterial cell and induce the transfer.

The conjugation pilus, also known as a sex pilus, is a hollow tube composed of protein that brings two bacterial cells into contact for the process of conjugation. It enables the transfer of genetic material, usually in the form of a plasmid, from a donor cell (F+) to a recipient cell (F-).

Conjugation is a mechanism of horizontal gene transfer in bacteria where DNA is directly transferred from one cell to another using a conjugation pilus, also known as a sex pilus. The conjugation pilus is a hollow tube composed of protein that brings two bacterial cells into contact for the process of conjugation. It enables the transfer of genetic material, usually in the form of a plasmid, from a donor cell (F+) to a recipient cell (F-).

Answer:

Saturation

Explanation:

Blood oxygen saturation is usually used to detect respiratory insufficiency, this saturation increases according to a hemoglobin dissociation curve.

The curve analysis shows that hemoglobin saturation is linked to partial oxygen pressure (pO₂). The higher the pO₂, the higher the oxygen saturation in the blood. The average saturation in a healthy human being is between 95% and 99%.

Answer:

C. the oxidation of NH4+ to N2.

Explanation:

Nitrifying bacteria are specific types of bacteria that obtain their chemical energy by the oxidation of inorganic nitrogen compounds. The process of nitrification can be divided into two steps:

the answer would be (b), do to al the storms and wave heights causing the sand to be pulled offshore

Answer:

The correct answer is option a. "Much more sand piled up on the beach".

Explanation:

Even though for occasional visitors it might seem that beach sand does not move, there is a constant flow of sand between the land and the ocean. Typically, you will see much more sand piled up on the beach after winter has ended. During winter there is much less sand on the beach because winter storms produce high energy waves that pull sand offshore. Once winter has over, the gentle waves of summer carry sand back on to the beach.

Answer:

Products of photosynthesis are used in cellular respiration

Explanation:

Photosynthesis is a process performed by the plants (also some algae and bacteria) in which the energy of sunlight is transformed into chemical energy usable by those plants. Necessary components of this set of reactions are sunlight, water and CO2, while resulting products are glucose and oxygen. Products of photosynthesis are then used in the metabolic processes known as cellular respiration. During the cellular respiration, glucose and oxygen are used for the production of ATP, CO2 and water. Cellular respiration is performed in mitochondria of all living organisms.

Photosynthesis occur in the chloroplast, membrane organelles with photosynthetic pigments (such as chlorophyll).

Photosynthesis occurs in chloroplasts and converts light energy to chemical energy, while cellular respiration takes place in mitochondria, converting glucose into ATP. Thus, the answer to the comparison is 'mitochondria'. These processes form the carbon-oxygen cycle, which is vital for life energy transformations.

Photosynthesis is comparable to cellular respiration in that both are essential processes that take place in cells to make chemical energy available for life. While chloroplasts are the site of photosynthesis in plant cells, where light energy is converted to chemical energy and stored in the form of glucose, mitochondria are the sites where cellular respiration occurs. In cellular respiration, the chemical energy stored in glucose is converted back into ATP, which is a usable form of chemical energy for cells.

Consequently, responding to 'Photosynthesis is to chloroplasts as cellular respiration is to what?', the answer is mitochondria. Both chloroplasts and mitochondria work in tandem to support the life processes of plants. They together form part of the carbon-oxygen cycle, showcasing a biological, cyclical harmony, which is essential for energy transformation and sustaining life.

Answer:

a. is marked by limited changes in reproductive hormones

Explanation:

Answer:

Explanation:

There are many different equations which can be used to find acceleration, time, velocity, distance, etc. However, there are three variables we need to take into consideration for this question, initial velocity, acceleration due to gravity, and time.

The equation acceleration= velocity/time, can be used, and we need to remember that on Earth, acceleration due to gravity is calculated to be 9.8 m/s².

So using the equation:

a= v/t

v= a x t

v= (9.8 m/s²) x (2 s)

v= 19.6 m/s

Answer:40

Explanation:20+20=40

loss of sensation to pressure and touch

Answer is 1

There are a couple reasons the ice is important to polar bears, but given the choices you have the correct one would be:

A. The polar bears can’t out swim the seals, so they sit quietly on an ice platform and attack the seals when they come  up for air.