Why are there zero hours of daylight at the North Pole and South Pole in the winter?

Answer:

Internal fertilization has the advantage of protecting the fertilized egg from dehydration on land. The embryo is isolated within the female, which limits predation on the young. Internal fertilization also enhances the fertilization of eggs by a specific male.

Answer:

Open, Closed, and Isolated Systems

A closed system does not allow matter to enter or leave, but does allow energy to enter or leave. A covered pot on the stove is approximately a closed system. An isolated system does not allow either matter or energy to enter or leave

Explanation:

The gas produced in the burning of fossil fuels that has been most closely linked to rising atmospheric temperatures is carbon dioxide. Option D

As a byproduct of combustion when fossil fuels like coal, oil, and natural gas are used to produce energy, carbon dioxide is discharged into the atmosphere.

As a greenhouse gas, carbon dioxide absorbs heat from the sun inside the Earth's atmosphere, creating the greenhouse effect, which causes global warming. The Earth's natural greenhouse effect, which keeps the globe warm enough to support life, is caused by this phenomena.

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Answer:

It will freeze.

Explanation:

What happens when you put bottle of water in freezer? It freezes and turns into ice right? Why? Because we take away the heat from the liquid water and this changes it from liquid to ice (solid). Thus, cooling water = making ice (freezing)

Answer:

Explanation:

Title: Observation of Liverworts (Hepatophyta)

Objective: To observe the living green "leafy" gametophyte stage of liverworts and compare them with moss.

Hypothesis: Liverworts and moss may share some similarities in structure, but there may be significant differences between them.

Observations:

Liverworts Structures:

Gametophyte: The main plant body of the liverwort, which is haploid (n) and produces gametes.

Sporophyte: A structure that grows from the gametophyte and produces spores. It is diploid (2n).

Rhizoides: Root-like structures that anchor the gametophyte to the substrate and absorb water and nutrients.

Leaf-like structures: Flattened structures that resemble leaves but do not have true veins or stomata.

Thallus: The entire plant body of the gametophyte, which lacks true stems or roots.

Observations of different structures in liverworts:

Sporophyte: Small and inconspicuous, growing from the gametophyte.

Gametophore: The stem-like structure that supports the gametophyte and sporophyte.

Rhizoides: Thread-like structures that attach the gametophyte to the substrate and absorb water and nutrients.

Thallus: The plant body of the gametophyte that lacks true stems or roots.

Comparison between liverworts and moss:

Similarities:

Both are non-vascular plants.

Both have a haploid (n) gametophyte and a diploid (2n) sporophyte stage.

Both reproduce by spores and require water for fertilization.

Differences:

Liverworts have leaf-like structures and a thallus, while mosses have true leaves and stems.

Liverwort sporophytes are small and inconspicuous, while moss sporophytes are tall and conspicuous.

Liverworts have rhizoides, while mosses have true roots.

Answer:

the longer it takes to orbit the sun I hope it helps

Hydrogen bonds contribute to body temperature regulation by one of the properties of water called high heat capacity. The water's high heat capacity is caused by hydrogen bonding among water molecules. These hydrogen bonds are broken down when heat is absorbed causing water molecules to move freely. When the temperature of water decreases, hydrogen bonds are formed; thereby releasing a considerable amount of energy.

Answer: Loss of sensation to pressure and loss of touch of control over all involuntary movements could be result of an injury to the dorsal column.

Explanation:

The dorsal column is the most important organ to maintain body stability, sensation, and joint actions.

Answer: I believe the answer is B or C "I might be wrong"

Explanation: D was false. and E feels off " but might be correct but it still feels off" and for A. hemoglobin transfers oxygen into the blood to the lungs * meaning it is not true.*

Answer:

CH₄ is the excess reagent and SO₄²⁻ is the limiting reagent.

0.040 g

Explanation:

Step 1: Write the balanced reaction for the methane anaerobic oxidation

CH₄ + SO₄²⁻ ⇒ S²⁻ + CO₂ + 2 H₂O

Step 2: Establish the theoretical mass ratio between the reactants

According to the balanced equation, the theoretical mass ratio of CH₄ to SO₄²⁻ is 16.04:96.06 = 0.1670:1

Step 3: Establish the experimental mass ratio between the reactants

50 mg (0.050 g) of CH₄ react with 60 mg (0.060 g) of SO₄²⁻. The experimental mass ratio of CH₄ to SO₄²⁻ is 0.050:0.060 = 0.83:1

Comparing both mass ratios, we can deduce that CH₄ is the excess reagent and SO₄²⁻ is the limiting reagent.

Step 4: Calculate the mass excess of CH₄

The mass of CH₄ that reacts with 0.060 g of SO₄²⁻ is:

0.060 g SO₄²⁻ 16.04 g CH₄/96.06 g SO₄²⁻ = 0.010 g CH₄

The mass excess of CH₄ is:

0.050 g - 0.010 g = 0.040 g

Answer:

Explanation:

Table salt, also NaCl (sodium chloride) is an ionic compound in which there is a transfer of an electron from the sodium atom to the chlorine atom. This electron transfer is characteristic of an ionic/electrovalent combination/bonding. While table sugar, also C₁₂H₂₂O₁₁ (sucrose) is an organic compound; thus has covalent bond within it's carbon chain, carbon-hydrogen bond and carbon-oxygen bond. Covalent bonding involves the sharing of electrons between two atoms, these electrons that are shared are referred to as "shared pair".

Answer:

The areas with the fastest population growth also have some of the worst gender equality scores.

Explanation:

When women are free to choose what happens to their bodies and lives, average family size plummets, as is evident in all countries with below-replacement fertility rates.

Answer:

C. This ensures that the member's best interest is protected.

Explanation:

EDG2021

Answer:

C) This ensures that the member's best interest is protected.

Explanation:

algae being they are high oxygen producers

Answer: yes atom is the smallest level of organization

Explanation:

Yes, it is true that when Refraction occurs the amplitude of the wave changes as it travels from one medium to the other.

Refraction is generally termed as bending of light ray when light travels from one medium to the other medium. Bending highly depends on whether the Medium may be dense or light.

Refraction may also be defined as the redirection or change of the direction of the wave that is passing from one medium to the other. It can be most commonly observed, for example, refraction in glasses, lenses etc.

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Answer:

During the conversion of glucose to pyruvate glycolysis or during the conversion of pyruvate to alcohol

Explanation:

During the conversion of glucose to pyruvate, NAD+ is converted into NADH.

Alcoholic fermentation is a biological process that converts sugars into cellular energy while emitting ethanol and carbon dioxide as byproducts.

The NADH + H+ from glycolysis would be recycled back to NAD+ during the fermentation process, allowing glycolysis to continue. NAD+ is reduced during glycolysis to form NADH + H+.

Thus, during this, when glucose is converted to pyruvate, NAD+ is being converted to NADH.

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Answer:

ratio of 3:1 means that there are 4 parts altogether. The fractions from the ratio can therefore be deduced as. 34and14. These represent the percentages: 75%:25%

A plant has many broad leaves with rough edges., type of plant is - Juglans nigra

1.

1b. match with broad leaves

2.

2b. Match with many leaves

3.

4.

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Answer:

Green plants are green because they contain a pigment called chlorophyll.

Explanation:

Answer: A pigment called  Chlorophyll

Explanation: chlorophyll absorbs light in the red (long wavelength) and the blue (short wavelength) regions of the visible light spectrum. Green light is not absorbed but reflected, making the plant appear green.

The primary processes that provide energy for all other life processes are cellular respiration and photosynthesis.

Cellular respiration is the process by which cells convert organic molecules, such as glucose, into usable energy in the form of adenosine triphosphate (ATP). It occurs in the mitochondria of eukaryotic cells and involves a series of enzymatic reactions that break down glucose and other molecules, releasing energy in the process.

Photosynthesis, on the other hand, is the process by which plants, algae, and some bacteria convert sunlight, water, and carbon dioxide into glucose and oxygen. This process occurs in the chloroplasts of plant cells, specifically in the chlorophyll-containing structures called thylakoids. During photosynthesis, light energy is captured by chlorophyll molecules, which drives the synthesis of glucose through a series of complex reactions.

Together, these two processes form a cycle of energy flow in ecosystems. Photosynthesis captures energy from the sun and converts it into chemical energy in the form of glucose, which is then used by organisms in cellular respiration to generate ATP, the energy currency of cells. This ATP is subsequently used for various life processes such as growth, reproduction, movement, and maintenance of cellular functions.

In summary, cellular respiration and photosynthesis are the fundamental processes that provide the majority of energy for all other life processes, sustaining the functioning and survival of organisms in ecosystems.

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Answer:

discovered 5 percent

Explanation:

Despite its size and impact on the lives of every organism on Earth, the ocean remains a mystery. More than 80 percent of the ocean has never been mapped, explored, or even seen by humans. A far greater percentage of the surfaces of the moon and the planet Mars have been mapped and studied than our own ocean floor has.

According to the National Ocean Service, it's a shockingly small percentage. Just 5 percent of Earth's oceans have been explored and charted – especially the ocean below the surface. The rest remains mostly undiscovered and unseen by humans.

Secondary succession is the kind of succession that might develop in a neighborhood park after the Zombie Apocalypse if the grass wasn't cut anymore and pioneer species would first colonize the bare soil.

Thus, pioneer species like weeds and grasses would colonize the bare soil and disturbed regions in the initial stage of secondary succession. These species can swiftly adapt to a new habitat since they are frequently resilient and rapidly developing.

In secondary succession, the pioneer species are the early settlers multiply and spread, the soil conditions become more stable and draw in additional species like shrubs and tiny trees. These animals are modifying the environment in a way that makes it possible for bigger and more diversified populations of creatures to live in more complicated settings.

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Answer:

ATP, Cellular resperation

Explanation:

A biodiversity hotspot is ​a natural ecosys​tems that are largely intact and where native species and communities associated with these ecosystems are well represented.

Answer:

A biodiversity hotspot is a biogeographic region with significant levels of biodiversity that is threatened by human habitation.

Explanation:

have a nice day.

The following statement which explains why water can support life below water is water is denser when frozen, protecting underwater organisms. Therefore, the correct option is A.

Since its density decreases when it freezes, water tends to float on top of liquid water. On the surface of water bodies such as lakes and seas, this characteristic develops an insulation layer. This layer provides a stable environment for life below the surface and helps protect aquatic species from sudden temperature changes. Without this special feature, aquatic ecosystems are likely to experience greater temperature variation, making them less likely to support life.

Therefore, the correct option is A.

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Your question is incomplete, most probably the complete question is:

Which of the following explains why water can support life below water?

85°F is approximately equal to 29.4°C.

To convert Fahrenheit (°F) to Celsius (°C), you can use the following formula:

°C = (°F - 32) * 5/9

Using this formula, to convert 85°F to Celsius:

°C = (85 - 32) * 5/9

°C = 53 * 5/9

°C ≈ 29.4

This conversion is often used when dealing with scientific or international temperature scales, or when comparing temperatures in different geographic locations. It is important to remember that Celsius and Fahrenheit are two different temperature scales, Celsius is used extensively around the world while Fahrenheit is used more frequently in the United States and some other countries.

Therefore, 85°F is approximately equal to 29.4°C.

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Answer:

D. Tongue rolling

Explanation:

Not many people can do this

D. Tongue rolling

A discontinuous variant refers to such things as eye color or blood group, that have a restricted number of possible values. In other words, someone's blood can be A, B, AB, or O, but it can not be something in between.

Examples of discontinuous variants encompass tongue rolling, fingerprints, eye color, and blood groups. continuous variation fluctuates around an average or a mean of species. Discontinuous variation does not have an average or mean.

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