Explain how the peahen's nesting behavior is an example of a reproductive strategy.

Answer: natural gas and Biomass Fuels

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The narrator of the film found that grass-fed beef, ducks raised in a backyard flock, and dairy products from cows were a sustainable, and always, humane product is TRUE.

The narrative in the film established that grass-fed beef, ducks raised in a backyard flock, and dairy products from cows were always sustainable and humane products.A local farmer’s wife narrated the film. She describes how she maintains the animals on her farm.

The film shows how the family farm raises its cows in pastures and lets the ducks wander around the backyard. They also use the organic approach in raising animals and crops.What are grass-fed beef and ducks?Grass-fed beef are those that graze in open pastures and are fed with grass.

Their environment is natural and stress-free, providing them with the freedom to roam and exercise. Such cows also get to consume nutrient-rich grass, which is less likely to carry bacteria and, as a result, is less likely to need antibiotics.

The ducks that are raised in a backyard flock are those that are allowed to live freely in the family backyard and get to eat natural feed. They get to socialize with the other ducks and are allowed to express their natural behaviors.

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Answer:

I think 6

Explanation:

Answer:

The answer is 12

Explanation:

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Photosynthesis is the process used by plants,Algae and certain bacteria to harness energy from sunlight and turn it into chemical energy.

Horses and humans are considered to have developed from the same ancestors. This is because they have similar body plans and the presence of hairs in their body which usually keeps them warm by preserving heat.

Common ancestors may be defined as an ancestor that significantly has two or more common descendants. These descents are present within the concept of evolutionary biology. Apart from this, these are the root point of speciation.

According to the context of this question, previously humans also walk or move with the help of four legs similar to horses. After numerous modifications and the presence of vestigial organs, it makes it possible for humans to move with two legs.

Horses and humans both have hairs on their skin. It usually helps to keep them warm by preserving atmospheric heat. So, with these two prices of evidence, we can convey that horses and humans are considered to have developed from the same ancestor.

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Plants release approximately 130 billion tons of oxygen during the process of photosynthesis. As a consequence of photosynthesis, oxygen is released by plants. However, it is estimated that plants actually emit 130 billion tonnes of oxygen annually through photosynthesis.

The biochemical process known as photosynthesis is used by plants, algae, and some bacteria to produce glucose (a form of stored energy) and oxygen from sunlight, carbon dioxide, and water. In particular, the chlorophyll, a type of green pigment found in the chloroplasts of plant cells, is where this process occurs.

Chlorophyll in plants absorbs sunlight during photosynthesis, which gives water molecules the energy to divide into hydrogen and oxygen. Using the hydrogen, glucose is created from carbon dioxide, which is subsequently used as an energy source by the plant's different cellular functions.

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The mean is the average of a data set. We can get it by making an addition of all the data set values, and then divide the result by the total number of values. In the example, the mean is 8.73.

Since I could not find the data groups, I will explain what the mean is and how to get it, and then I will provide an example for you to understand and use as a guide.

The Mean, together with media and mode, is a central tendency measure. It is used in statistical analysis to identify the tendency of a data set concerning information inclination.

This measure is used to expose the result of a research in a resumed way to avoid providing extensive information.

The Mean is the average value of a data set.

To calculate the mean you just have to add all the data and divide it by the amount of data you have.

For instance, let assume our data set is as follows,

To get the mean we need to add these values and then, divide them by the total number of values.

Addition:

4.5 + 5 + 7 + 7 + 7.5 + 7.5 + 7.5 + 7.8 + 7.8 + 8 + 8 + 9 + 9 + 9.2 + 9.3 + 10 + 10 + 10.5 + 13 + 17 = 174.6

Total number of values: 20

Mean = (Σ values) / Total number of values = 174.6 / 20 = 8.73

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Answer:

When a grain of pollen reaches the stigma, it creates a pollen tube for the sperm to journey down the style and fertilize the ovule; fertilized ovules become seeds. Fertilization is the death of the flower, as the petals drop or wither at this point and the ovary starts to enlarge and ripen into what we know as fruit

Explanation:

The body system which functions to regulate the activities of other body systems by secreting chemical messengers called hormones is the endocrine system.

The endocrine system is a collection of glands that produce and secrete hormones directly into the bloodstream. These hormones act as chemical messengers, traveling through the blood and affecting various organs and tissues throughout the body. The endocrine system works to regulate many bodily functions, including growth and development, metabolism,  function, and mood.

The endocrine system plays a critical role in maintaining homeostasis in the body. It works in conjunction with the nervous system to regulate various bodily processes, but unlike the nervous system, which uses electrical impulses to send messages, the endocrine system uses hormones. The endocrine glands produce hormones in response to specific stimuli, such as stress or low blood sugar, and release them into the bloodstream, where they travel to their target tissues and organs. Once there, the hormones bind to specific receptors on the cells, triggering a response. This allows the endocrine system to exert precise control over various bodily functions and maintain balance in the body.

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Explanation:

it consists of mouth, pharynx, gullet, stomach, small intestine, large intestine, appendix, colon, rectum, and anus.

All these parts are found in most vertebrates

Eutrophication does not result in an increased oxygen content of a river, lake, or other body of water.

Due to the increased availability of one or more limiting growth elements required for photosynthesis, such as sunshine, carbon dioxide, and nutrient fertilizers, eutrophication is characterized by excessive plant and algae development. In the course of millennia, as lakes deteriorate and accumulate sediment, eutrophication naturally takes place.

Eutrophication frequently results in hypoxia, or the lack of oxygen, in both freshwater and marine environments. Species kills are one of the direct repercussions of hypoxia, particularly for fish that require a lot of dissolved oxygen.

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The complete question is :

Eutrophication does not

a. results in an increased oxygen content of a river, lake , or other body of water.

b. initially decreases the content of photosynthetic microorganisms in a body of water.

c. kills off the existing bacteria in a body of water.

d. results in a period of high level aerobic bacterial decomposition of organic matter.

e. results in all of the above

Answer:

How many chromosomes an individual has

The correct sequence of the evolutionary development of the vertebrate brain, from earliest to most recent, is:

1. A bilaterian thought to be a vertebrate contained a mass of cartilage that appeared to surround a brain.

2. As they became predators, vertebrates grew in body size and developed longer neurons and insulating myelin.

3. Larger sense organs provided more information while new motor neurons allowed for more complex movement.

4. The brain evolved a divided structure with specialized functional regions, such as the cerebellum.

5. Regions of the brain were modified in different lineages, depending on their ecological and evolutionary history.

This sequence shows the gradual development of the vertebrate brain, from its early beginnings as a simple structure to its current complex and specialized organization.

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Given a bacteria culture starts with 2000 bacteria. a) It take 2.93 hours for the number of bacteria to double ; b) It will take  4.21 hours. for the bacteria population to grow to 90000.

a) After 6 hours the estimated count is 60 000. Round your answer to 2 decimal places of an hour. For calculating the time taken for a number of bacteria to double, we use the formula, t = (ln 2)/k where, t = time, k = doubling time (in hours), and ln = natural logarithm. Given that the initial number of bacteria is 2000 and the number of bacteria after 6 hours is 60 000. The estimated growth rate, k = (ln N₁  - ln N₀ )/(t₁  - t₀ ) where N₁ is the final number of bacteria, N₀ is the initial number of bacteria, t₁ is the final time, and t₀  is the initial time. So, we have k = (ln 60 000 - ln 2000)/(6 - 0) = 1.418 / 6 hours = 0.236. Therefore, t = (ln 2)/k = (ln 2)/0.236 = 2.93 hours (approximately) to double the number of bacteria. Hence, the answer is 2.93 hours.

b) Assume the doubling period was half an hour.  Round your answer to 2 decimal places of an hour. Given that the doubling period was half an hour. Therefore, the growth rate, k = 1/doubling time = 1/0.5 = 2 per hour. Let t be the number of hours to grow to 90,000 bacteria. Then, we have 90,000/2000 = 2^(t/0.5) => 45 = 2^(t/0.5) => ln 45 = (t/0.5) ln 2 => t = (ln 45)/(0.5 ln 2) = 4.21 hours (approximately). Therefore, the answer is 4.21 hours.

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Colony C showed a decrease in size every two weeks after the initial treatment with pesticide. Colony A showed an increase in size, and colony B showed no significant change.

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Post-synaptic inhibitory potentials (IPSPs) group of answer choices(a) are formed when postsynaptic membrane permeability increases for k (b) are a type of graded potential(c) are formed when the postsynaptic permeability for cl- ions increases. The correct answer is (e) all of the above.

Post-synaptic inhibitory potentials (IPSPs) are the hyperpolarizations of postsynaptic potentials. They result from the binding of neurotransmitters to receptors on the postsynaptic membrane. The permeability of the postsynaptic membrane increases for chloride (Cl−) or potassium (K+) ions, which results in the hyperpolarization of the membrane potential. As a result, the membrane potential is more negative than the resting potential and more difficult to depolarize. The postsynaptic potential is proportional to the quantity of neurotransmitter that was released and the number of receptors on the postsynaptic membrane. The postsynaptic inhibitory potentials (IPSPs) are a kind of graded potential, which means they can have varying amplitudes and durations, depending on the quantity of neurotransmitter released.

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Answer:

yes my number is 9160361705 in what's app

Explanation:

yes Agriculture animals may reproduce both sexually and asexually

Answer:

Many organisms can reproduce sexually as well as asexually. Aphids, slime molds, sea anemones, and some species of starfish are examples of animal species with this ability.

Explanation:

Hope this answer helps you :)

Have a great day

Mark brainliest

Using the theories of lizard species, we got that Decreased fecundity is the life-history trait which is expected in Vivipara lizards in the mountains as compared to individuals from warmer, lowland regions.

Due to the fitness trade-offs, the mountain population must strike a balance between the survivorship and the fecundity. Therefore, the mountain population exhibits the higher survivorship but lower fecundity than lowland populations.

Hence, In the lizard species  Vivipara, most females from the colder, mountainous part of the range live much longer than do individuals from warmer, lowland regions as Compared to the lowlands, the life-history trait which  is expected in lizards living in the mountains is Decreased fecundity.

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Answer:

$7

Explanation:

the first one: 5+2+10=17

second one: 4+7+12=23

23+17=40

Answer:

brainiest is my answer lol

Explanation:

Numerous viruses go through the maturation step before being transmitted to another host final stages of assembly.

Flaviviruses are a bunch of enveloped positive-stranded RNA viruses accountable for notable mortality and morbidity throughout the world. Flaviviruses fuse with the endosomal membranes of the prey cell in a pH-dependent fashion by entering cells via a clathrin-dependent endocytic pathway.  Flaviviruses derived from the endoplasmic reticulum assemble at bud into membranes as immature virions on which E and prM proteins interact as heterotrimeric spikes.

The flaviviruses maturation process is staged by the proteolytic cleavage of the precursor membrane protein into shifting to infectious particles from the inert virus. The  peptide β-barrel structure consists of the fusion loop in E, controlling fusion with host cell membranes. during maturation, The structure helps to identify the stages of the pH-directed conformational metamorphosis and leads to the release of pr when budding from the host.

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The given statement, "pericardial fluid is located in a space external (superficial) to the visceral pericardium," is false because pericardial fluid is located in a space internal to the visceral pericardium but external to the parietal pericardium.

The pericardium is a double-layered sac that surrounds and protects the heart. The visceral pericardium, also known as the epicardium, is the inner layer that is in direct contact with the heart muscle. The parietal pericardium is the outer layer that forms the sac around the heart.

The space between the visceral and parietal pericardium is called the pericardial cavity. This cavity contains a small amount of pericardial fluid, which serves as a lubricant. The pericardial fluid helps reduce friction between the layers of the pericardium during the movement of the heart.

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Answer:

If there's not a study guide, try going over your notes. Typically teachers let you choose what you talk about, but I'm in flvs. It's been a while since I've been in bio, but you got it. (last year) it's not as scary as you think. You can always look at the lesson while yall talk!

Explanation:

Hope this helps and good luck!

Answer:

There are quizlet flash cards you can use, sadly i cant put the link for you bc it wont let me.

Answer:

Explanation:

Yes, the disease specialist's explanation is plausible based on what we know about evolution by natural selection. Let me break it down for you in simpler terms.

The disease specialist is suggesting that the tropical fungus mentioned by your colleague might be related to the fungal pathogen causing the illness at the hospital. They explain that even though the tropical fungus may have been brought to Vancouver Island some time ago, it might not have caused any illness until now. This could be because the tropical fungus was originally adapted to a different environment and couldn't infect people in the new environment of Vancouver Island.

Now, here's where evolution by natural selection comes into play. Over time, organisms can undergo changes in their traits and abilities through a process called natural selection. Mutations, which are changes in the genetic material of organisms, can happen randomly. If a mutation occurs in the tropical fungus that enables it to infect individuals in the Vancouver Island environment, it could be favored by natural selection.

For example, let's say that due to a mutation, the tropical fungus developed adaptations that allowed it to thrive in the new environment and infect people. These adaptations might include changes in its ability to penetrate human cells or evade the immune system. As a result, the fungus would become more successful at causing infections in the Vancouver Island population.

So, the disease specialist's explanation is plausible because it suggests that over time, through natural selection acting on mutations, the original tropical fungus could have evolved adaptations that made it capable of causing illness in the new environment of Vancouver Island.

Drosophila that live in the same parts of the Hawaiian islands, represent a type of reproductive isolation known as behavioral isolation.

Behavioral isolation occurs when two populations of the same species have differences in courtship rituals or other types of behavior that prevent them from interbreeding. In this case, the differences in courtship rituals between the males of different Drosophila species may prevent them from successfully mating and producing viable offspring, leading to the development of separate species over time.

Here,

The elaborate courtship rituals involving fighting and stylized movements that attract females, observed in males of different species of the fruit fly Drosophila that live in the same parts of the Hawaiian islands, represent a type of reproductive isolation known as behavioral isolation.

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The correct option is 2

enzymes speed up chemical reaction is Enzymes use light energy to speed up chemical reactions.

What is the enzyme in a chemical equation?

An enzyme acts as a catalyst by providing an alternate pathway for the reaction that may have a lower the activation energy.

An enzyme is a substance that acts as a catalyst in living organisms, regulating the rate at which chemical reactions proceed without itself.

Enzymes create chemical reactions in the body. They actually speed up the rate of a chemical reaction to help support life. The enzymes in your body help to perform very important tasks. These include building muscle, destroying toxins, and breaking down food particles during digestion.

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it is the Enzymes lower the activation energy of a reaction

why bro gave wrong answer and dummies saying its true

Answer:

Is a nerve cell or a neuron

Explanation:

Answer:

Plant cells contain all of the same organelles as animal cells, including mitochondria, a nucleus, ribosomes, smooth and rough ER, Golgi apparatus, lysosomes, peroxisomes, cytoplasm, and a cell membrane. However, they also contain some subcellular structures that are absent in animal cells, such as chloroplasts , a vacuole, and a cell wall.

Explanation:

please add me as brainliest.

Answer:

D

Explanation:

Answer:

a: 30 percent

b: 1.7 percent

c:68.7 percent