What comes first, meiosis or fertilization? Explain.

Answers

Answer 1

Answer: Meiosis comes first.

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How many moles of oxygen are needed to burn 1.33 moles of methyl alcohol (CH3OH)?2CH3OH + 3O2 2CO2 + 4H2O

Which of these corrects the shift of voice in the following sentence?Nakamura was praying for protection when the front door was flung open by force.

Nakamura was praying for protection when the front door was flung open by the police.
A prayer for protection was being said by Nakamura when a force flung the front door open.
Nakamura was praying for protection when a force flung the front door open.
A prayer for protection was being said by Nakamura when the police flung the front door open.

Answers

Answer:

Option B, A prayer for protection was being said by Nakamura when a force flung the front door open.

Explanation:

A shift in voice of a sentence or statement is considered when there is a change in the tense, person and voice of the sentence or statement.

Here the given statement is in active voice and in the option chosen the voice is passive. Here the voice is changing from active to passive which is the requirement of producing a shift in voice , thus, option B is correct.

Nakamura was praying for protection when the front door was flung open by the police.

(Must answer in your own words to receive points, thank you in advance!) Use the model here to describe the transfer of matter and flow of energy from one trophic level to another within an ecosystem. All of the following must be addressed in your response to receive full credit:

a. Discuss the transfer of biomass when one organism eats another. Use your knowledge of digestion to discuss how food is broken down and used by the consumer.

b. Explain what happens to the energy that is not transferred from one organism to another.

c. Explain why there are typically fewer organisms at the top of an energy pyramid.

d. Use specific numbers and calculations to support your explanation.

Answers

Energy and matter are transferred through the trophic levels of the ecosystem. Energy is lost at each level, resulting in a pyramidal distribution of energy and fewer creatures at higher levels.

In an ecosystem, the transfer of matter and the flow of energy occurs through trophic levels. When one organism eats another, the biomass is transferred from one level to another. However, not all energy is transferred between levels and some energy is lost as heat or used for metabolic processes. This loss of energy means a decrease in biomass and the number of organisms at higher trophic levels.

This results in a pyramidal distribution of energy, with the greatest amount of energy going to primary producers and the least to tertiary consumers. In general, the transport of matter and the flow of energy across trophic levels determines the distribution and abundance of organisms in an ecosystem.

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The ears, feet and tail of north american mammals are often smaller in northern species than they are in southern species. Explain the adaptive advantage of these size differences

Answers

This phenomenon can be explained by Allen's rule. It says that the body proportions and shape may vary in different climates. The temperature decreases as the latitude increases, so in the northern region is much colder. Animals must preserve heat in such conditions. So, exposed surface areas of the body, such as the ears, feet, and tail, are usually minimized to minimize heat loss in the cold climate. Therefore, northern species often have smaller ears, feet, and tail than the southern species.

Which of the following chemical reactions proves the fact that the products of photosynthesis are reactants of respiration?Photosynthesis:
Respiration:

Photosynthesis:
Respiration:

Photosynthesis:
Respiration:

Answers

The answer is:
Photosynthesis: 6 CO₂ + 6 H₂O → C₆H₁₂O₆ + 6 O₂
Respiration: C₆H₁₂O₆ + 6 O₂ → 6 CO₂ + 6 H₂O + ATP

Cellular respiration and photosynthesis are complement reactions to each other. These are reverse reactions. In cellular respiration glucose (C₆H₁₂O₆) and oxygen (O₂) yield carbon dioxide (CO₂) and water (H₂O) and energy is released in the form of ATP. In the opposite reaction - in photosynthesis, carbon dioxide (CO₂) and water (H₂O) yield glucose (C₆H₁₂O₆) and oxygen (O₂).

photosynthesis: C6H12O6 = 6 O2 + 6 CO2 + 6 H2O

breathing: C6H12O6 + 6 O2 6 CO2 6 H2O ATP

Cellular respiration and photosynthesis are complement reactions to each other. These are reverse reactions. In cellular respiration glucose (C₆H₁₂O₆) and oxygen (O₂) yield carbon dioxide (CO₂) and water (H₂O) and energy is released in the form of ATP. In the opposite reaction - in photosynthesis, carbon dioxide (CO₂) and water (H₂O) yield glucose (C₆H₁₂O₆) and oxygen (O₂).

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What is the most common salt found in ocean water? A.
potassium

B.
calcium carbonate

C.
magnesium

D.
sodium chloride

Answers

There are several salts in sea water, but the most abundant is ordinary table salt orsodium chloride (NaCl). Sodium chloride, like other salts, dissolves in water into its ions, so this is really a question about which ions are present in the greatest concentration.

The correct answer is D. Hope that helps!

The mitochondria is known as the “powerhouse of the cell." Why?*glucose is broken down into cellular energy (ATP).
lipids release energy as they form polypeptide bonds.
glucose is created through the process of photosynthesis.
proteins create energy as they are converted from sugars.

Answers

Answer:

Explanation:glucose is broken down into cellular energy (ATP).

lipids release energy as they form polypeptide bonds.

glucose is created through the process of photosynthesis.

proteins create energy as they are converted from sugars.

Answer: I believe the answer is glucose is created through the process of photosynthesis. I am not completely sure, I'm sorry.

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