Use the information to answer the following question.
The Brazil nut tree, Bertholletia excels (n=17) , is native to tropical rain forests of South America. It is a hardwood tree that can grow to over 50 meters tall, a source of high-quality lumber, and a favorite nesting site for harpy eagles. As the rainy season ends, tough-walled fruits, each containing 8-25 seeds (Brazil nuts), fall to the forest floor. Brazil nuts are composed primarily of endosperm. About $ 50 million worth of nuts are harvested each year. Scientists have discovered that the pale yellow flowers of Brazil nut trees cannot fertilize themselves and admit only female orchid bees as pollinators. The agouti (Dasyprocta spp.), a cat-sized rodent, is the only animal with teeth strong enough to crack the hard wall of Brazil nut fruits. It typically eats some of the seeds, buries others, and leaves still others inside the fruit, which moisture can then enter and allow the remaining seeds to germinate.
Predict the most likely outcome to the population of Brazil nut trees if a disease decimated the agouti population. (A) The population of large Brazil nut trees would remain constant for a while, but the population of new seedlings would likely increase in the long run. (B) The population of large Brazil nut trees would decline immediately, and the population of new seedlings would likely decrease in the future. (C) The population of large Brazil nut trees would remain constant for a while, but the population of new seedlings would likely decrease in the long run. (D) Both the population of large Brazil nut trees and new seedlings would increase in the long run.

Answers

Answer 1

Orchid bees are all to Brazil nut trees what breezes are to pine trees. In order to help pollinate Brazil nut trees, the female orchid bees act as pollinators. The fertilization of pine trees is aided by wind or breeze.

Pinetrees can they self-pollinate?

Gymnosperms like pine trees lack the blooms that attract pollinators like bees, butterflies, and birds. They are pollinated by wind. Because pine trees are monoecious, both the male and female reproductive organs (pinecones) are present on the same tree.

The pollen grains from male catkins (cones) are lighter, less sticky, and endowed with small wings or air bladders. These qualities make it simple for the pollen grains to be dispersed by the wind. In order to prevent self-pollination, which happens when pollen contacts the female cones of the same tree, the male cones are normally found on the lower branches of the pine tree.

Are pine trees pollinated?

Pine trees don't create flowers with pollen hidden inside the ovaries; they instead generate cones with exposed seeds or pollen.

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Related Questions

Over time the density of salt in surface waters can increase. What is the cause of this increase?

Answers

Explanation:

density= mass/volume

Density is directly/proportional to mads. (i.e if mads increases then density increases and vice-versa) Density is inversely proportional to volume. (i.e if volume increases then the density decreases and vise-vera)

so, when we add salt to water.

Help please ill mark brainliest!

Help please ill mark brainliest!

Answers

Answer:

DNA

Explanation:

there's my answer hopes it helps you out :)have a great day
DNAAAAAAAAAAAAA your welcome

12 In order to prepare for a future outbreak of Ebola, a harmful virus, two vaccines were tested. In order for either of these vaccines to be effective, they must?​

Answers

In order to prepare for a future outbreak of Ebola, a harmful virus, two vaccines were tested. In order for either of these vaccines to be effective, they must be safe and have thermal stability.

What is a Vaccine?

This is referred to as a biological preparation that provides active acquired immunity to a particular infectious or malignant disease.

An effective commercial vaccine should not harm the person being vaccinated and must be stable so as to be withstand different environmental changes such as temperature etc thereby making it the correct choice.

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which characteristic makes fungi similar to plants

Answers

Like plant cells, fungal cells have a thick cell wall. The rigid layers of fungal cell walls contain complex polysaccharides called chitin and glucans. Chitin, also found in the exoskeleton of insects, gives structural strength to the cell walls of fungi.

Which of the following describes the arrangement of a first class lever?

Which of the following describes the arrangement of a first class lever?

Answers

Answer:

d. is correct

Explanation:

1st Class Lever = The axis/fulcrum is in the middle

2nd class = The Resistance is in the middle

3rd class= The Force is in the middle.

Which phylum reproduces asexually through budding?

Answers

Answer:

Hydra

Explanation:

The correct answer is - Hydra

Reason -

Budding: Hydra reproduce asexually through budding, where a bud forms that develops into an adult and breaks away from the main body.

What are the possibilities for the
offspring's eye colour?

Answers

Both parents have brown eyes 75% chance of having a brown-eyed baby 18.8% chance of having a green-eyed baby, and a 6.3% chance of having a blue-eyed baby. If both parents have blue eyes: 99% chance of having a blue-eyed baby a 1% chance of having a green-eyed baby, and a 0% chance of having a brown-eyed baby.

Your child inherits the eye color from you and your partner. This is a combination of mom's and dad's eye colors. Generally, the color is determined by this combination and whether the gene is dominant or recessive. Every child has two copies of each gene. One from her mother and one of hers from her father.

Simply put brown-eyed parents can produce children with brown eyes blue eyes or virtually any color of the eye. Eye color is very complex and many genes are involved. Some people appear to have a black iris, which technically does not exist. doing. In fact, brown eyes are the most common eye color for newborns.

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draw a well leabled diagram of heart and show its internal mechanism blood flow​

Answers

Answer:

the labelled diagram is attached

Explanation:

image credits : wikipedia

draw a well leabled diagram of heart and show its internal mechanism blood flow

Explanation:

I am not sure about this ⬆️⬆️

draw a well leabled diagram of heart and show its internal mechanism blood flow

A child who isn't growing properly might want to have their
doctor.
examined by a
Omedulla oblongata
hypothalamus
midbrain
Opons

Answers

Answer:

opons.. responsible for growth

A child who isn't growing properly might want to have their doctor examined by hypothalamus. The correct option is B.

What is hypothalamus?

The hypothalamus is a deep structure in your brain. It is the primary link between your endocrine and nervous systems. Your hypothalamus keeps your body in a stable state known as homeostasis.

The hypothalamus releases thyrotropin-releasing hormone (TRH), gonadotropin-releasing hormone (GnRH), growth hormone-releasing hormone (GHRH), corticotropin-releasing hormone (CRH), somatostatin, and dopamine into the blood, where they travel to the anterior pituitary.

A hypothalamic injury can cause a variety of dysfunctions, including changes in body temperature, growth, weight, water balance, milk production, emotions, and even sleep cycles.

A child who is not growing properly may wish to have their hypothalamus examined by their doctor.

Thus, the correct option is B.

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Which body response to an acute inflammation will the nurse assess if the client is experiencing a systemic response?

Answers

The body response to an acute inflammation that the nurse will assess if the client is experiencing a systemic response is Fever and tachycardia.

Acute inflammation occurs when a specific injury occurs in which certain soluble mediators like cytokine, acute phase protein and chemokines are released to the injury site that promotes migration of neutrophils and macrophages.

The signs of inflammation include heat, pain, redness, swelling, pain and loss of function.

When acute inflammation does not settle in a week or so it can lead to chronic inflammation that can last for years also.

Fever and tachycardia are the common responses seen during acute inflammation.

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some plants, such as strawberries, develop new flowering stems through the use of aboveground horizontal stems. which term best describes these structures?

Answers

The term that best describes the structures through which some plants, such as strawberries, develop new flowering stems is runners.

Runners are horizontal stems that grow above the ground and develop into new plants at their nodes. Strawberries, spider plants, and mint are just a few examples of plants that grow runners. These plants' runners enable them to spread and reproduce vegetatively, rather than relying on sexual reproduction (i.e., producing seeds).

Runner plants, also known as stolons, are structures that grow horizontally above the ground. They typically develop from a node on the plant's main stem, and they frequently produce new roots and shoots at their nodes, allowing the plant to propagate asexually. Runners are a means of vegetative reproduction for a variety of plants.

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1. What are too small to be seen but make up everything?

Answers

Answer:

Matter is made up of small particles that are too small to be seen, even with a powerful microscope.

Answer:

atoms and molecules

Explanation:

hhdjxjcjkd

Step 1: drag the lac promoter to the stretch of dna. do not drag the lacz gene to the dna. now drawwing the lacz gene to the dna. inject some lactose. specifically,what is lactose being converted into?

Answers

This leads to the production of beta-galactosidase, which can then break down lactose into glucose and galactose.

What is DNA?

DNA (Deoxyribonucleic Acid) is a complex molecule that carries genetic information in all living organisms. It is made up of nucleotides, which consist of a sugar molecule (deoxyribose), a phosphate group, and a nitrogenous base. The order of these bases determines the genetic code, or the instructions for the development, function, and reproduction of all living things.

Lactose is being converted into glucose and galactose by the enzyme beta-galactosidase, which is encoded by the lacZ gene that is downstream of the lac promoter in the lac operon. When lactose is present, it binds to the repressor protein that usually binds to the operator region of the lac operon, preventing the repressor from binding to the operator and allowing RNA polymerase to transcribe the lacZ gene and other genes in the operon.

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Difference between Hilum and micropyle. ​

Answers

Answer:

Hilum is an elliptical scar on the seed, which marks the point of attachment of the funicle.

Micropyle is the small end of the helium in which the pollen tube go through prior to fertilization.

Answer:

Anton van Leeuwenhoek’s contribution in the development of cell theory?

Need help ASAP with this answer

Need help ASAP with this answer

Answers

Answer:

C.

Explanation:

Animals found in the tundra include the musk ox, the Arctic hare, the polar bear, the Arctic fox, the caribou, and the snowy owl. Many animals that live in the tundra, like the caribou and the semipalmated plover, migrate to warmer climates during the winter.

I hopes it's help :)

Scientists are studying the evolutionary history of a group of plants in the united states, and they developed an evolutionary tree. What information about the organisms best helps the scientists to determine the evolutionary relationships among them?.

Answers

Scientists studying the evolutionary history of plants in the United States use a combination of morphological characteristics, genetic data, fossil evidence, and geographic distribution to determine the evolutionary relationships among them. By analyzing these factors, scientists can construct an evolutionary tree that represents the lineage and evolutionary history of the plants in question.

Scientists studying the evolutionary history of a group of plants in the United States use various information about the organisms to determine their evolutionary relationships. The following factors are especially helpful in this process:

1. Morphological characteristics: By examining the physical features of the plants, such as the shape and structure of leaves, flowers, fruits, and stems, scientists can identify similarities and differences among species. Shared characteristics suggest a closer evolutionary relationship.

2. Genetic data: Analyzing the DNA or RNA sequences of the plants provides valuable insights into their evolutionary relationships. By comparing the genetic makeup of different species, scientists can identify common genetic traits and determine the degree of genetic relatedness.

3. Fossil evidence: Fossils of extinct plants provide a glimpse into the evolutionary past. By studying the fossil record, scientists can trace the development and diversification of plant species over time. Fossils help establish the order of appearance and disappearance of different groups of plants, aiding in the construction of an evolutionary tree.

4. Geographic distribution: The geographical distribution of plants can provide clues about their evolutionary history. Species that are closely related are often found in the same or nearby regions. Analyzing patterns of distribution helps scientists understand the movement, dispersal, and speciation of plants.

In conclusion, scientists studying the evolutionary history of plants in the United States use a combination of morphological characteristics, genetic data, fossil evidence, and geographic distribution to determine the evolutionary relationships among them. By analyzing these factors, scientists can construct an evolutionary tree that represents the lineage and evolutionary history of the plants in question.

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Summary of gene expression starting with DNA anding with proteins.

Answers

Answer:

Normally, transcription begins when an RNA polymerase binds to a so-called promoter sequence on the DNA molecule. ... Some regulatory proteins affect the transcription of multiple genes. This occurs because multiple copies of the regulatory protein binding sites exist within the genome of a cell.

Explanation:

Gene expression is the process of using a gene to produce a protein. It also comprises the processes of mRNA translation and DNA transcription for the production of the protein. It might potentially involve further protein processing after protein synthesis.

What is the process of gene expression?

DNA to mRNA to protein translation. The simplest definition of gene expression is the production of the gene's corresponding protein, and this complex procedure involves two main phases.

Transcription is the process by which the data in DNA is converted into a messenger RNA (mRNA) molecule in the initial phase.

Therefore, a cell's nucleus is where an mRNA transcript is created. The mRNA travels from the nucleus to the cytoplasm for the following stage of gene expression.

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human chorionic gonadotropin (hCG)
The hormone produced by cells around the embryo that maintains the corpus luteum and pregnancy is called

Answers

The hormone produced by cells around the embryo that maintains the corpus luteum and pregnancy is called human chorionic gonadotropin (hCG).



Human chorionic gonadotropin (hCG) is a hormone that is produced by cells around the embryo, that is, trophoblastic cells that develop into the placenta, after fertilization. Its main function is to maintain the corpus luteum during the early stages of pregnancy. The corpus luteum is a temporary endocrine structure that develops after the release of an egg from the ovary, that is, after ovulation. It produces progesterone, which is essential for the maintenance of pregnancy in humans.

If an egg is fertilized by a sperm, the resulting embryo secretes hCG, which signals the corpus luteum to continue producing progesterone. This is necessary to prevent the lining of the uterus from shedding and to maintain the pregnancy. If the corpus luteum did not receive this signal, it would degenerate after about 12 days, and progesterone levels would decline. This would cause the lining of the uterus to be shed and menstruation to occur. The levels of hCG in a woman's blood and urine can be used to diagnose pregnancy. hCG levels rise rapidly in the first few weeks of pregnancy and can be detected by a blood or urine test. After about 10 weeks of pregnancy, hCG levels start to decline and eventually level off.

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Which organisms in this food web have a Producer/Consumer
Relationship?

Answers

Answer:

what food web?

Explanation:

I need help pleaseeeeeeee

I need help pleaseeeeeeee

Answers

Answer:

1. co2 and sunlight

2. glucose and oxygen

3. palisade

4.site

5. xylem and phlegm

6. stomata

7. guard cells

Which of the following examples support reasons for humans to selectively breed for traits? Select ALL that apply.

1. a bird that can no longer fly
2. watermelons that have less seeds
3. basil plants that require less water
4. corn plants resistant to disease
5. a dog that does not shed its coat

Answers

2, 3, 4, 5, so all numbers but 1

What remind’s you of the ribosomes in a cell???
Plz help due today!!

Answers

Answer:

i imagine them as peopel in a big city, or animals in the wild with predators that are hungry, the cell uses the ribosomes for food and to heal the cell with energy.

Explanation:

probably a factory since they make proteins

Identify an invasive species in your local ecosystem. Discuss how the species adapted to its native environment, including the types of adaptations and adaptive techniques.

Answers

Answer:

i live near the Gulf of Mexico so the loin fish would be considered an invasive species but you can go.ogle invasive species in the state that u are in and a lot would pull up to tell u

Explanation:

Invasive species when introduced compete with the native species present in the environment for food and space. One such example of invasive species is Invasive carp.

What is adaptation?

Adaptations are the changes in an organism which help them in adjusting more in an ecosystem. Adaptations can be of different types such as structural, physiological, etc depending upon the environment.

When a highly invasive species is introduced, they are more likely to compete with the native species present in the environment. When the population sizes and genetic diversity of native species are large enough, the native species may be able to evolve traits which allow them to co-occur with the invasive species and live in the same ecosystem.

One examples of invasive species is the Invasive carp, which are fast-growing, aggressive, and adaptable fishes that outcompetes the native fish species present in the waterbody for food and habitat in much of the mid-section of the United States.

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What best describes an animal at the top of the food chain on the trophic level?
B) Carnivore
A) Primary Producer
C) Herbivore
D) Decomposer

Answers

B) Carnivore

An animal at the top of the food chain on the trophic level is typically a carnivore. Carnivores are animals that primarily eat other animals, they are at the top of the trophic level as they are not being consumed by other animals. They are also known as top predators as they have no natural predators.

What issues, organs, and systems were involved in this process of heavy breathing

Answers

Answer:The respiratory system is the network of organs and tissues that help you breathe. It includes your airways, lungs and blood vessels. The muscles that power your lungs are also part of the respiratory system.

Explanation:

Which of the following provides the information necessary to stipulate a protein's 3- D shape? a. side chains of various amino acids b. number of water molecules in the vicinity c. sequence of amino acids in the polypeptide chain d. peptide bonds between different amino acids

Answers

The correct option is B ;  Number of water molecules in the vicinity  ,A protein molecule has hydrogen bonds. The folded polypeptide chain forms many hydrogen bonds with neighboring areas, which aid in stabilizing its three-dimensional structure.

The information required to determine a protein's three-dimensional structure is included in the amino acid sequence of the protein. When the protein starts to fold, the ordering of the amino acids enables certain amino acids to interact noncovalently with other amino acids.

The folding and intramolecular bonding of the linear amino acid chain, which ultimately creates the protein's distinctive three-dimensional form, are driven by the main structure of a protein, which is its amino acid sequence.

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Can someone please answer these multiple choice questions. (29 to 32) Will mark as brainliest.

Can someone please answer these multiple choice questions. (29 to 32) Will mark as brainliest.

Answers

29.D
30.A
31.C
32.A
If you need more help for things like this ask me cause this is fun ab I enjoy this!

What inheritance pattern is most consistent with increased phenotypic expression of a rare?

Answers

The inheritance pattern most consistent with increased phenotypic expression of a rare trait is autosomal dominant inheritance. Autosomal dominant inheritance is the inheritance pattern most consistent with increased phenotypic expression of a rare trait. In this pattern, a single copy of the mutant allele is sufficient to cause the trait, and affected individuals have a 50% chance of passing the trait to their offspring.

Autosomal dominant inheritance occurs when a single copy of the mutant allele is sufficient to cause the trait or disease. In this pattern, an affected individual has a 50% chance of passing the trait to each of their offspring. Examples of autosomal dominant traits include Huntington's disease and Marfan syndrome.

To understand why autosomal dominant inheritance leads to increased phenotypic expression of a rare trait, let's consider an example:

Let's say there is a rare trait called "Trait X." In autosomal dominant inheritance, if an individual carries the mutant allele for Trait X, they will exhibit the trait. So, even if the trait is rare, if one parent carries the mutant allele, their offspring will have a 50% chance of inheriting the allele and expressing the trait.

For instance, if a parent with Trait X has a child with a non-affected individual who does not carry the mutant allele, the child has a 50% chance of inheriting the allele and expressing Trait X. This can lead to an increased phenotypic expression of the rare trait, as the trait can be passed down through generations.

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Which molecules make up carbohydrates?

1.nucleotides
2.nucleic acids
3.monosaccharides
4.O amino acids

Answers

Answer:

b

Explanation:

Answer:      monosaccharides

Explanation:

regarding the length of fibers the parasympathetic nervous system has

Answers

The length of nerve fibers, the sympathetic division has short preganglionic fibers and long postganglionic fibers. Option D is correct.

In the sympathetic division of the autonomic nervous system, the preganglionic fibers are short, while the postganglionic fibers are long. The preganglionic fibers in the sympathetic division originate from the thoracic and lumbar segments of the spinal cord. These fibers are relatively short and connect the spinal cord to the sympathetic ganglia, which are located near the spinal cord.

Once the preganglionic fibers reach the sympathetic ganglia, they synapse with the postganglionic neurons. From there, the postganglionic fibers extend to their target organs or tissues, which can be located far from the spinal cord. These postganglionic fibers are comparatively long, allowing them to reach a wide range of target areas throughout the body.

Hence, D. is the correct option.

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--The given question is incomplete, the complete question is

"Regarding the length of nerve fibers, the sympathetic division has ______ preganglionic fibers and ______ postganglionic fibers. A) short, short B) long, long C) long, short D) short, long."--

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