Mosses, ferns, and lichens are primitive flowerless plants that usually reproduce by producing _______. A. fruit B. seeds C. spores D. cones

Answers

Answer 1
Unlike the other vascular plants, the flowering plants and conifers, where the adult plant grows immediately from the seed, ferns reproduce from spores and an intermediate plant stage called a gametophyte.
Answer 2
I would say C spores

Related Questions

Dutch elm disease, which has killed millions of elm trees, is caused by a type of _____ fungus. club sac zygote-forming chytrid imperfect

Answers

Dutch elm disease, which has killed millions of elm trees, is caused by a type of SAC fungus.

Mostly all the fungi belong to the Phylum Ascomycota kingdom. These fungi are characterized by the formation of a sac-like structure that contains haploid ascospores. These fungi are harmful for both agriculture and medicine purposes.

Answer:

Dutch elm disease, which has killed millions of elm trees, is caused by a type of sac fungus.

What is the phrase that pays for the Unit 2 test review


1. attitude


2. values


3.self confidence


4. sense of self

Answers

self confidence would help

According to the tree, which primates share the most recent common ancestor with humans?

Answers

Bonobos and chimpanzees. 
hope it helps
please mark as brainliest

Which is referred to as the "walking larva" of the blowfly? 1.first instar 2. second instar 3. third instar 4. pupa

Answers

 think its the second one... hope that helps

Answer

1.First Instar

Explanation

In biology of insects, there are 1-7 instars. The first instar is quite mobile and has long legs with which to disperse. At this stage, it explores cracks, and depressions in the soil in search of an egg pod. After the first instar, the larva moves little because the legs become smaller and smaller.


Flowering tundra plants must bloom and set seed quickly because _____.

Answers

Flowering tundra plants should bloom and need to set the seed quickly because the summers then are very short and so they should then be disperse as the seeds can flower then somewhere new.Hope this answer would be of help.

Answer:

the summers are very short.

Explanation:

Tundra is a type of biome located in the northern hemisphere of the planet, in regions near the Arctic, more precisely in northern America, Europe and other places such as Alaska and Siberia. These regions tend to have very short summers, however summer weather conditions are extremely important for the reproductive process of these plants, so they must bloom and set seed quickly.

Stanley Miller was able to synthesize _____. esters amino acids alcohols aldehydes

Answers

Stanley Miller was able to synthesize amino acids
Hello there,

The answer to your question is:

Stanley Miller was able to synthesize amino acids.

Hope this answer helps.

When earth completes a full rotation, how much time has elapsed?

Answers

The answer is; 24 hours.

Scientists called the full rotation of the earth a day and divided it into 24 hours on the clock. This means from sunrise to next sunrise. They also divided the earth into latitudes that indicate time zones. When one point on earth rotates and return to the same position in space, it has lapsed 24 hours.

From the capillaries of the abdominal organs and hind limbs, blood flows to the _____. from the capillaries of the abdominal organs and hind limbs, blood flows to the _____. right atrium left atrium aorta capillaries of the lungs inferior vena cava

Answers

The correct answer is "inferior vena cava".

The venous drainage from the abdominal organs such as the spleen, stomach, intestines, omentum, and mesentery are the splenic vein and superior mesenteric vein which will eventually form the portal vein which will drain into the inferior vena cava. The venous drainage from the hind limbs will form external iliac veins wherein the internal iliac veins will join to form the common iliac vein. The left and right common iliac vein will then form the inferior vena cava.
Final answer:

Blood from the capillaries of the abdominal organs and hind limbs flows into the inferior vena cava. From there, the blood flows into the right atrium and then is pumped into the right ventricle, continuing the blood circulation process.

Explanation:

The question asks where the blood flows from the capillaries of the abdominal organs and hind limbs. The blood in this case flows to the inferior vena cava.

The capillaries unite to form venules, which merge into ever-larger veins, eventually flowing into the two main systemic veins, the superior vena cava and the inferior vena cava. The inferior vena cava receives blood from veins beneath the diaphragm, including from the abdominal organs and hind limbs.

The blood in the superior and inferior venae cavae flows into the right atrium, where it is pumped to the right ventricle, continuing the process of blood circulation as long as the individual is alive.

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Which of the following statements cannot be tested by science?

Answers

what's your choices?

We cannot answer if there are no choices, since it looks like a multiple choice question.

describe three parasitic flagellates and their vectors

Answers

Three parasitic flagella and their Vectors:

1.    Giardasis is a parasite that causes diarrhea or Giardia Lamblia infection in humans and animals It infects the small intestines of Human beings and animals once they ingest Giardia cysts from contaminated food and water or fecal-oral route.  Plasmid or prokaryotic DNA is the vector for this parasite

 

2.    Trypanosoma cruzi is a parasite that causes Chagas disease. These parasites occur in the bloodstreams of man but do not multiply there.  Vector for this parasite is hemipterous or kissing bugs.

 

3.    Trichomonas vaginalis is a parasite that can be found in the vagina of women and urethra of men.This parasite does not survive more than 24 hours outside the body of the host. Vector for this parasite is the human male. 

Final answer:

Three parasitic flagellates include Trypanosoma species, which cause sleeping sickness and Chagas disease via insect vectors; Giardia lamblia, causing giardiasis through contaminated water; and parabasalids, responsible for diseases like trichomoniasis.

Explanation:

Parasitic flagellates are protozoa that can cause diseases in humans, often requiring vectors for their transmission. Three notable examples include:

Trypanosoma species, which cause sleeping sickness in Africa and Chagas disease in South America. They are transmitted by insect vectors such as the tsetse fly (for sleeping sickness) and the triatomine bug (for Chagas disease).Giardia lamblia, responsible for giardiasis, a diarrheal illness. Transmission occurs through the fecal-oral route, usually by ingesting contaminated water.Parabasalids, such as those causing trichomoniasis, transmitted through sexual contact or contaminated surfaces. These organisms move with flagella and affect various tissues in the human body.

These parasites enter the human body through different routes but share a commonality in requiring either direct contact with contaminated materials or an insect vector for transmission.

When critiquing a research study study's theoretical framework, the nurse should keep in mind?

Answers

- Theoretical frameworks can be implicitly or explicitly stated in a research report.

- A theoretical framework may not be identified in all types of nursing research.


Final answer:

When critiquing a research study's theoretical framework, the nurse should consider the interpretive framework, reliability and validity, and the role of historical context.

Explanation:

When critiquing a research study's theoretical framework, the nurse should keep in mind several factors. First, the nurse should consider the function and importance of the interpretive framework, which seeks to understand social phenomena from the participants' point of view. Second, the nurse should assess the reliability and validity of the research study, which refers to the accuracy and consistency of the measurement and findings. Finally, the nurse should critically examine the role that historical context plays in the study, as it can shape community-based participatory research.

The specialization of function between the left and right hemispheres is known as __________

Answers

The term "lateralization" refers to specialized function within one particular hemisphere of the cerebral cortex of the brain. Lateral quite literally means to the side, thus one-sided cortical function can be called lateralized, hence only to one side.

Tina's second cousin was diagnosed with asthma at age 5. what would be included in your treatment plan? what factors might concern you related to compliance?

Answers

Pediatric patients diagnosed with bronchial asthma are treated with the same medications as adults, albeit in dosages based on the weight of the child (usually lower than the adult dose). Pediatric patients usually use a spacer between the inhaler and after a puff, he or she must be instructed to breathe in and out for 10 times. There is an option to use a nebulizer to give the medication but for pediatric patients (they are usually afraid of the nebulizer), this is less effective. 

The primary caregiver should also be able to recognize an asthma attack at home or at school. He or she should also be able to know how to operate the inhaler.

Asthma can be treated with breathing exercises and by using long term medication such as inhaler and nebulizer. After using an inhaler or nebulizer the person has been advised to breathe in and out ten times. Some children are afraid of nebulizer that makes that less effective.

Further Explanation:

Asthma is an inflammatory lung disease. The common symptom of this disease is difficulty in breathing. It does not allow the person to do physical activity. The center for disease control and prevention (CDC) estimated that around twenty-seven million Americans have asthma. According to them twenty-seven it is the most common disease among the American children.

The symptoms appear when the linings of the airways swell due to the muscles that the exercises present around them has. It leads to accumulation of mucus in the airways that result in a decrease in the amount of the exchange. The symptoms include tightening in the chest, shortness of breath, coughing and fatigue.

The asthma gasin two ways namely; breathing exercise and long term asthma. The doctor recommends the right treatment or a combination of treatment. Breathing exercise helps in getting the required amount of gases in and out of the lungs. It increases the capacity of the lungs. Inhalers and nebulizers are the long term medication that helps in controlling asthma.

Learn More:

1. Learn more about the treatment of eukaryotic cell with a drug https://brainly.com/question/10767798

2. Learn more about the proteins synthesis in a cell https://brainly.com/question/1420458

3. Learn more about an exchange of gases by blood cells https://brainly.com/question/1213217

Answer Details:

Grade: High School

Subject: Biology

Chapter: Respiratory System and disease

Keywords:

Asthma, exercise, medication, inhaler, nebulizer, inflammatory, breathing, symptoms, swell, lungs, medication.

Which of the following statements is true? Friction works in the direction opposite of motion. Lubrication can be used to increase friction. Only large masses exert gravitational force. Air resistance is greatest for objects with small surface areas.

Answers

Hello sorry for the late replay but my best answer is going to be
A.)
Friction works in the direction opposite of motion
The answer is 

A. Friction works in the direction opposite of motion.

Differential white blood cell count data table answers

Answers

Final answer:

A Differential White Blood Cell Count is a medical test that measures the number of different types of white blood cells in a blood sample. These types include neutrophils, lymphocytes, monocytes, eosinophils, and basophils, and their distributions can help indicate different health conditions.

Explanation:

A Differential White Blood Cell Count is a medical procedure that differentiates between the types of white blood cells in a patient's blood. The cells differentiated include neutrophils, lymphocytes, monocytes, eosinophils, and basophils. The frequency of these cell types is usually expressed as a percentage of the total white blood cell count. For instance, a normal differential count could present as follows: neutrophils 50%-70%, lymphocytes 20%-40%, monocytes 2%-8%, eosinophils 1%-4%, and basophils 0.5%-1%.

Increased or decreased levels of the different types of white blood cells in a differential count can indicate various health issues. For example, a high neutrophil count could suggest a bacterial infection, while a high lymphocyte count might indicate a viral infection.

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Final answer:

A differential white blood cell count measures the amount and types of leukocytes in the peripheral blood, with different ranges for different species. These cells, comprising granulocytes and agranulocytes, play a central role in the immune system. Fluctuations in their count can offer clues about ongoing infections or medical conditions.

Explanation:

The differential white blood cell count is a test that measures the amount of different types of white blood cells, or leukocytes, found in your blood. Leukocytes are the predominant white blood cells in the peripheral blood and their count varies among different species. For instance, primate counts range from 4,800 to 10,800 cells per µl, dogs from 5,600 to 19,200 cells per ul, cats from 8,000 to 25,000 cells per µl, cattle from 4,000 to 12,000 cells per µl, and pigs from 11,000 to 22,000 cells per ul.

Leukocytes are important as they are a crucial part of the immune system. Different types of leukocytes are identified by their appearance after histologic staining. The granulocytes include neutrophils, eosinophils, and basophils, and the agranulocytes include monocytes and lymphocytes.

Changes in the count of these cells can indicate an ongoing infection or a medical condition. For instance, an elevation in white blood cell count, like in Olivia's case, where the count increased to 28.5 K/µL from a normal range of 6.0–17.5 K/µL, indicates a strong immune response to an infection.

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Mr.etterly, age 66, has just been admitted to the nursing unit reporting severe chest pain, a frequent productive cough, and shortness of breath. physical assessment findings include increased ap chest diameter, finger clubbing, anduse of accessory muscles. abg findings include: ph, 7.32; pao2, 68;paco2, 55; and pahco3, 28. what is the priority problem for mr. etterly? what led the nurse to identify this problem?

Answers

acidosis, the pH of a human should be 7.4 and never lower than 7.35

The priority problem for Mr. Etterly is Acidosis because his blood pH is found to be 7.32 which is significantly lower than that of normal one.

What are the symptoms of acidosis?

The symptoms of Acidosis include shallow breathing, increased heart rate, a frequent productive cough, sleepiness, confusion, fatigue, etc.

The nurse identifies this health problem of Mr. Etterly by analyzing the difference in blood pH.

The pH of the blood is very rarely found to be lower than 7.34 which is slightly acidic in nature due to unable to terminate enough carbon dioxide from your body via the process of breathing.

Therefore, it is well described above.

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What type of sex chromosome will be contained by the sex cells of a female giraffe?

X chromosome

Y chromosome

X and Y chromosomes

Egg cells do not contain sex chromosomes.



Of what is this an example? A child with a widow's peak has a mother who is homozygous dominant for a widow's peak and a father who is homozygous dominant for a widow's peak.

homozygous dominant

homozygous recessive


heterozygous


heterozygous recessive




PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!



Answers

1. X chromosome only

2. T or t

3. heterozygous

4. male

5. homozygous recessive

6. homozygous dominant

7. female

X chromosome will be contained by the sex cells of a female giraffe and Homozygous dominant for a widow's peak. So, the correct options for 1 and 2 are (A) and (A) respectively.

What is X chromosome?

X chromosome is defined as one of the two sex chromosomes in humans while the other chromosome is the Y chromosome. Sex chromosomes make up one of the 23 pairs of human chromosomes in each cell where the X chromosome spans about 155 million DNA building blocks that are base pairs and represents about 5 percent of the total DNA in cells.

A female giraffe, like many mammals, exhibits dimorphism in female chromosomes, meaning females have XX chromosomes while males have XY chromosomes, unlike other organisms such as birds. A sex cell of an organism is also called a gamete, or a cell that is formed through meiosis or reductional division.

Gametes are haploid which only contain one set of chromosomes. Thus, a female giraffe will produce all gametes containing an X chromosome. While the child having widow's peak is homozygous dominant.

Thus, X chromosome will be contained by the sex cells of a female giraffe and Homozygous dominant for a widow's peak. So, the correct options for 1 and 2 are (A) and (A) respectively.

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The Northeast’s rocky and jagged shoreline provides many _____.

Answers

Final answer:

The Northeast's rocky and jagged shoreline offers various opportunities for tourism, including sights and recreational activities. They are shaped by wave action, and their diversity ranges from cliffs to sandy beaches, important for both ecological health and the local economy.

Explanation:

The Northeast’s rocky and jagged shoreline provides many opportunities for tourism, including sightseeing, hiking, and recreational activities such as sailing and fishing. The complex coastline, shaped by the sediment transported by wave action, contains well-sorted gravel and sand, indicating a high-energy environment where wave action is strong. Destinations like Island Beach State Park in New Jersey are examples of this, showcasing the natural beauty and geological features that attract visitors.

These coastlines are diverse, varying from steep cliffs to sandy beaches and coves, often protected from extensive wave damage due to their orientation, as is the case in parts of the Mid-Atlantic States. Moreover, the shoreline's ecological health can be affected by the proximity to human settlements and their activity. Therefore, sites like Santa Cruz Island off the California coast, exhibit a range of habitats for both wildlife and human enjoyment while highlighting the need for conservation and careful management of these delicate coastal ecosystems.

In regions like New England, both the mountains and the coastline provide a dual attraction for tourism and activities such as skiing and summer vacations. The dynamic and varied coastal geography offers a wealth of opportunities for both recreation and the economy in areas like finance, telecommunications, and healthcare, making these coastlines invaluable to local communities.

why are the cells in a multicellular organism organized into tissue

Answers

Hi there!!!!!!!!!

I think this might help you hopefully. 
HAVE A GREAT DAY!!

~ TRUE BOSS

Memories can often be triggered by an associated environmental stimulus. this process is called _____.

Answers

The process is called priming

Which vessels allow diffusion of oxygen and nutrients across their cell layers?

Answers

The correct answer is "capillaries".

Capillaries are small blood vessels that is composed of a single layer of endothelial cells. The thinness of the capillaries as well as the thin single layer of endothelium will allow the diffusion of oxygen and nutrients across their cell layers. Some capillaries are fenestrated (i.e. kidneys) or sinusoidal (i.e. liver) which also contribute to the diffusion of oxygen and nutrients.

Answer:

Capilleries

Explanation:

Capillaries are the places where the exchange of substances between blood and surrounding tissues occurs. Substance exchange can occur between and through the cells that make up the vessel wall. The pores present in some types of blood capillaries also act as transfer sites. It is noteworthy that the permeability of these vessels varies from one body region to another. In summary, we can say that it is the capillaries that allow the diffusion of oxygen and nutrients through their cell layers.

Blood capillaries are vessels of the cardiovascular system that are characterized by their small caliber.

Which brain region would be least involved in visual imagery encoding?

Answers

Visual imagery encoding is the process of storing new info by converting it into mental pictures. This process relates incoming information to knowledge that is already in the  brain. That way it is creating two different mental placeholders (visual and verbal).
Visual imagery encoding occurs in the visual processing regions in occipital lobe.

Increased global movement of people decreases the risk of pandemic flu

Answers

it is false because when people move it does nothing but spread

Answer:

false

Explanation:


The Dunkers is a religious group which moved from Germany to Pennsylvania in the 1700's. The Dunkers do not mate outside of their small group, and this has led to a change in the frequency of certain genes. The Pennsylvania Dunkers are now unique for other populations, including their German relatives. Which of these best describes this occurred?
A) gene flow
B) speciation
C) genetic drift
D) natural selection

Answers

the answer is C. Genetic drift.

Answer:

C) genetic drift

Explanation:

A client who has taken diazepam for several months has developed physical dependence. the nurse has set up a schedule to taper drug doses to avoid a withdrawal syndrome. which symptom would indicate that a withdrawal syndrome has occurred? select all that apply.

Answers

Diazepam is an anti-convulsant and anti-anxiety drug under the class of benzodiazepines. Benzodiazepines are GABAa receptor agonists wherein it promotes the inhibitory function of GABA (which primarily is a depressant) therefore relieving anxiety symptoms. In benzodiazepine withdrawal, there are many symptoms such as sleep disturbance, increased tension, panic attacks, etc. In this question, the correct answers would be "headache", "increased anxiety", and "tremors". 

Name three arthropod head appendages

Answers

The answer is Antennae, ocelli, and mandibles. Antennae are used by arthropods to sense their environment. Ocelli also referred to as eye spots, detect light and the mandibles are used to cut food or used as weapons in some arthropods. Antennae and mandibles are paired appendages while ocelli are three in some arthropods such as bees.


"can you identify the types of cell in which each organelle is found?"

Answers

dang i cant quit do that off the top of my head sorry 

What must be true for natural selection to happen?
a.there cannot be any predators.
b.the population must be below carrying capacity.
c.all organisms must have the same genotype.
d.there must be competition for resources?

Answers

The only option given above that is true for natural selection to occur is option d: 'there must be competition for resources'. Natural selection would also occur under predatory pressure. Natural selection occurs through individuals with advantageous characteristics (phenotypes) surviving and passing on their genes (genotypes) to their offspring.

Answer:

The answer is D.

D. There must be competition for resources.

Explanation:

support the claim that all living things are made up of cells

Answers

We know all living things are made up of cells because all cells come from cells, you cant have a cell without it coming from a different cell.

In insects, what is the adaptive significance of spiracles? in insects, what is the adaptive significance of spiracles? they dilate and constrict during flight or other types of movement, functioning as a "breathing" mechanism. they close off tracheae to minimize water loss. they are thin and highly branched, offering a large surface area for gas exchange. they open into the body cavity, allowing direct contact between hemolymph and tissues.

Answers

They close off tacheae to minimize water loss.
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