WRITE ABOUT A THEME: INTERACTIONS Giant lycophyte trees had microphylls, whereas ferns and seed plants have megaphylls. Write a short essay (100-150 words) describing how a forest of lycophyte trees may have differed from a forest of large ferns or seed plants. In your answer, consider how the type of forest may have affected interactions among small plants growing beneath the tall ones.

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Answer 1

A lycophyte forest can be different from a forest of large ferns or seed plants because lycophytes have single leaves that separate them from all other plant groups. Its leaves, known as microphylls, have only one vein that runs the length of the leaf. All lycophyte plants are herbaceous, so no species grows wood, which would make this forest easily dependent on climatic conditions.

What is the difference between lycophytes and ferns?

The most popularly known lycophyte is Selaginella. Selaginella are the best known lycophytes. In Botanical Science, the young leaves of ferns are called crosiers: they are born rolled up and resemble the shape of a staff or cane. When adults are called frond.

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Related Questions

What is the plant source of vitamin A called?

Answers

Your body can produce vitamin A from carotenoids found in plants. These carotenoids include beta-carotene and alpha-carotene, which are collectively known as provitamin A.

- BRAINLIEST answerer ❤️✌

Plant sources of vitamin A include: mangos, papaya, many of the squashes, carrots, sweet potatoes and maize (but not the white varieties). Other good sources of vitamin A are red palm oil and biruti palm oil.

Hope my answer helped u :)

T/F: the average-size adult has approximately 10 quarts of blood.

Answers

The statement "T/F: the average-size adult has approximately 10 quarts of blood" is FALSE.What is the correct answer?

An average adult has between 4.5 to 5.5 liters (roughly 1.2 to 1.5 gallons) of blood. To make the answer simple, an adult has an average of 5 liters of blood which is approximately 1.3 gallons or 10.5 quarts. Hence, the statement "T/F: the average-size adult has approximately 10 quarts of blood" is false.How does the body maintain blood volume?The body maintains blood volume by a process known as homeostasis. The kidney plays a critical role in maintaining blood volume. It regulates the concentration of electrolytes and water in the body. The kidneys secrete a hormone known as renin which stimulates the production of angiotensin which increases the secretion of aldosterone hormone in the adrenal gland. Aldosterone increases the reabsorption of sodium ions in the distal convoluted tubule of the kidney which leads to the reabsorption of water. By regulating the concentration of electrolytes, the kidneys maintain blood volume.

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In a scientific experiment the ____ Group is The data that comes from the norm or situation. it is the information the other group compared to

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It’s the control group.

The reason why is because the experimental group is the group in which they are experimenting with while the control group isn’t receiving any experimentation

In plant cells, this structure captures energy from the sun to produce food.

Answers

the answer is chloroplasts

Chloroplasts. They are part of the “Light reaction” in the cell.

Describe some causes of water pollution.

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Water pollution is a serious thing and is caused by many different things this commonly includes bacteria which is everywhere as well as viruses that spread is a big reason water pollution is prominent.

One of the biggest causes of water pollution are us. Humans cause about 80% of the water contamination through hazardous leaks, nuclear weapon testing, and of course, plastic waste.

what is this? If you know lmk

Answers

Answer:

it is a bug

Explanation:

Why has the human population increased over the past 300 years even though the birth rate has remained about the same?

Answers

Answer:

First, birth and death rates are both high, so little growth occurs. Second, death rates fall due to improved living conditions, while birth rates remain high. During this period population grows rapidly.

This rapid growth increase was mainly caused by a decreasing death rate (more rapidly than birth rate), and particularly an increase in average human age.

Predict how a dialysis machine works to remove wastes from the blood and to adjust fluid and electrolyte imbalances. Use your knowledge of how a nephron carries out these functions to support your prediction

Answers

A dialysis machine is designed to mimic the functions of a nephron in the kidneys, specifically in removing wastes from the blood and adjusting fluid and electrolyte imbalances. Here's a prediction on how a dialysis machine achieves these goals based on the knowledge of nephron functions:

1. Filtration: In a nephron, filtration occurs in the glomerulus, where blood is filtered through the walls of the capillaries. Similarly, in a dialysis machine, blood from the patient is circulated through a specialized filter called a dialyzer. The dialyzer consists of a semipermeable membrane that allows small molecules such as waste products, electrolytes, and excess fluids to pass through.

2. Diffusion and Osmosis: Once the blood is inside the dialyzer, diffusion and osmosis come into play. Waste products, such as urea and creatinine, as well as excess electrolytes, diffuse across the semipermeable membrane from the blood into a dialysate fluid. The dialysate fluid is a solution with a composition that is carefully controlled to promote the removal of specific substances from the blood.

3. Ultrafiltration: In addition to removing waste products, a dialysis machine also helps adjust fluid imbalances. In the nephron, ultrafiltration occurs in the renal tubules, where excess fluid is removed from the blood. Similarly, in a dialysis machine, a pressure gradient is created to remove excess fluid from the blood through the semipermeable membrane. This process helps address fluid imbalances in the patient's body.

By simulating the processes of filtration, diffusion, osmosis, and ultrafiltration, a dialysis machine effectively removes waste products, adjusts fluid levels, and helps restore electrolyte balance in the blood. It serves as an artificial substitute for impaired kidney function, providing necessary support for patients with kidney failure or other renal disorders.

Can some please help? I’ll give brainliest

Answers

Answer:

The sensitive ones died out and the resistant ones were more able to survive and reproduce, this is survival of the fittest and natural selection or rather artificial selection as humans are involved causing the selection forces. More of the resistant ones will reproduce and if the resistant is heritable it will be passed on and there will be more resistant ones.

Explanation:

why do we have many more fossils of marine life than terrestrial life?

Answers

We have many more fossils of marine life than terrestrial life because the conditions required for fossilization are more commonly found in marine environments than on land.

Fossilization is a rare process that occurs when the remains of an organism are buried in sediment or other materials, preventing decay and allowing them to be preserved over time. However, for fossilization to occur, certain conditions must be met. The body must be rapidly buried in sediment, preventing scavengers and decomposition, and the sediment must be compressed and hardened over time. Additionally, the fossil must be exposed at the surface and accessible for collection.

Marine environments are more conducive to fossilization because sediment is more likely to rapidly cover and bury organisms due to the movement of water and the presence of currents. In contrast, on land, remains are more likely to be exposed to scavengers or weathering, and sediment may not accumulate as quickly or be as conducive to fossilization.

Furthermore, marine environments have a higher biodiversity and more complex food webs, leading to a higher rate of mortality and more opportunities for fossilization.

In conclusion, the greater abundance of marine fossils compared to terrestrial fossils is due to the more favorable conditions for fossilization found in marine environments. However, there are still many important fossils from terrestrial environments, and ongoing research continues to reveal new insights into the evolution of life on land.

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What sample size would I need if I wanted to do an experiment testing the effects of antibiotics on fungi vs bacteria? I need this done quick, and I’ll give brainliest!!

Answers

18 and 98 thousand if there is not a negative and positive

Fill in the blank
We have the highest high tides during ____________ and the lowest low tides during _________. Spring tides, Neap tides
Neap tides, Spring tides

Answers

We have the highest high tides during spring tides and the lowest low tides during neap tides.

The correct option is option b.

Spring tides are basically defined as the tides which happen to occur after a new moon or after a full moon. These tides when there is the largest amount of difference present between the high as well as low water are known as spring tides.

During this time, the Sun, Moon as well as the Earth are present in a straight line which cause the maximum gravitational pull. High tides are found to be higher than the normal and also the low tides are found to be lower than normal. Neap tides happen to occur 7 days after the spring tides and involved tides which are medium.

Hence, the correct option is option b.

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In multicellular organisms, life begins as a single cell until blank occurs, causing growth

Answers

the blank is fertilization

Which stage of the cell cycle occurs after mitosis in which the cell creates a cleavage furrow.

Interphase

G2

Anaphase

Cytokinesis

Answers

Answer:

Anaphase

Explanation:

After anaphase, a cleavage furrow forms in the equatorial cortex in typical animal mitosis. To divide the two daughter cells, this furrow then progresses inwards.

The sister chromatids differentiate from each other in anaphase and are pulled toward opposite ends of the cell. The "glue" of protein that binds together the sister chromatids is broken down, causing them to separate. Each one now has a chromosome of its own.

This peripheral blood smear is from a 42-year-old man with a past medical history significant for hypertension who presents with progressive fatigue and weakness over the past month. He indicates generalized abdominal fullness. Laboratory data include: WBC = 129.7 x 10^3/uL , RBC = 4.43 x 10^6/uL , HGB = 13.0 g/dL, MCV = 91 fL, RDW = 15%, and PLT = 309 x 10^3/uL. Identify the following cells and answer the accompanying questions.

1.What cytochemical stain might be done on the peripheral blood smear to aid in diagnosis?

2.What would you expect the results of the special stain to be ?

3.Explain your answer Calculate the Mean corpuscular Hemoglobin Concentration

4.Calculate the Hct What is this disease?

5.Name the chromosomes associated with this disease. Explain the genetic translocation associated with this disease

Answers

1. A cytochemical stain that might be done on the peripheral blood smear to aid in diagnosis is a myeloperoxidase (MPO) stain. 2. If a myeloperoxidase (MPO) stain is performed, the results would be negative. 3. The mean corpuscular hemoglobin concentration (MCHC) cannot be determined with the given data since the hematocrit (Hct) value is not provided.

1. A cytochemical stain that might be done on the peripheral blood smear to aid in diagnosis is a myeloperoxidase (MPO) stain.

2. In this case, if a myeloperoxidase (MPO) stain is performed, the results would be negative.

3. The mean corpuscular hemoglobin concentration (MCHC) is calculated by dividing the hemoglobin concentration (HGB) by the hematocrit (Hct) and multiplying by 100. However, the information provided in the question does not include the Hct value, which is necessary for calculating the MCHC. Therefore, it is not possible to determine the MCHC with the given data.

4. The hematocrit (Hct) can be calculated by multiplying the red blood cell count (RBC) by the mean corpuscular volume (MCV) and dividing by 10. In this case, the RBC count is 4.43 x 10^6/uL and the MCV is 91 fL. Using the formula: Hct = (4.43 x 10^6) x (91) / 10, the calculated Hct is 40.273%.

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A large bar of solid gold is melted into liquid. The liquid is then poured into
molds to make a number of gold coins. Was this a chemical or physical
change? Explain.

Chemical, because the gold turned into something new and is no longer gold.

Physical, because the gold changed size and shape, but is still gold.

Answers

Answer:

It is physical, the gold is still gold and there has not been any chemical change. Melting, boiling, freezing, etc. are physical changes.

Molecules that do not contain carbon are called inorganic.

true or false

Answers

Answer:

The answer is false

Explanation:

because most carbon are harmful and are added by humans

A fragment of a wild-type polypeptide is sequenced for seven amino acids. The same polypeptide region is sequenced in four mutants. Wild-type N . . . Thr-His-Ser-Gly-Leu-Lys-Ala . . . C polypeptide Mutant 1 N . . . Thr-His-Ser-Val-Leu-Lys-Ala . . . C Mutant 2 N. . . Thr-His-Ser-C Mutant 3 N . . . Thr-Thr-Leu-Asp-C Mutant 4 N . . . Thr-Gln-Leu-Trp-Ile-Glu-Gly . . . C 1. Identify the mutation that produces Mutant 1. 2. Identify the mutation that produces Mutant 2. 3. Identify the mutation that produces Mutant 3. 4. Identify the mutation that produces Mutant 4.

Answers

Here's the analysis of each mutant:

1. To identify the mutation that produces Mutant 1 (Thr-His-Ser-Val-Leu-Lys-Ala), compare it to the wild-type polypeptide (Thr-His-Ser-Gly-Leu-Lys-Ala). The mutation is a single amino acid substitution, where Gly is replaced with Val.

2. To identify the mutation that produces Mutant 2 (Thr-His-Ser-C), compare it to the wild-type polypeptide. The mutation is a deletion that removes the last four amino acids (Gly-Leu-Lys-Ala) from the fragment.

3. To identify the mutation that produces Mutant 3 (Thr-Thr-Leu-Asp-C), compare it to the wild-type polypeptide. The mutation involves two amino acid substitutions: His is replaced with Thr, and Ser is replaced with Asp.

4. To identify the mutation that produces Mutant 4 (Thr-Gln-Leu-Trp-Ile-Glu-Gly), compare it to the wild-type polypeptide. There are three amino acid substitutions: His is replaced with Gln, Ser is replaced with Trp, and Lys is replaced with Ile.

In summary:
Mutant 1: Gly to Val substitution.
Mutant 2: Deletion of the last four amino acids.
Mutant 3: His to Thr and Ser to Asp substitutions.
Mutant 4: His to Gln, Ser to Trp, and Lys to Ile substitutions.

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explain the difference between lymph, tissue fluid and plasma

Answers

Lymph, tissue fluid, and plasma are all fluids that exist in the body, but they differ in their location and composition.

Lymph is a clear fluid that circulates through the lymphatic system. It is formed when tissue fluid enters the lymphatic vessels and is transported through the lymphatic vessels and lymph nodes. Lymph contains immune cells and waste products and is important for the immune system.

Tissue fluid is a fluid that surrounds the cells in tissues. It is formed when blood plasma filters out of the capillaries and into the spaces between cells. Tissue fluid supplies nutrients and oxygen to the cells and removes waste products.

Plasma is the liquid part of the blood. It contains water, electrolytes, proteins, hormones, and waste products. Plasma carries nutrients, hormones, and waste products to and from the cells and tissues in the body.

In summary, lymph is a fluid that circulates through the lymphatic system, tissue fluid is a fluid that surrounds the cells in tissues, and plasma is the liquid part of the blood that carries nutrients, hormones, and waste products to and from the cells and tissues in the body.

PLEASE HELP!

What claim or claims can you make about the impact of climate change on sea level rise?

What is your evidence for this claim?

Answers

Answer:

POLUTION

Explanation:

Answer:

I can make the claim that climate change and the sea level rise have a positive correlation. The graph shows that as the impact of climate change increases so does the sea level conveying that they are positively correlated.

Which of the following is an example of a negative tropism?

A. stems and leaves growing upward
B. leaves curling when touched
C. roots growing downward
D. leaves turning toward the light

Please help ASAP

Answers

Answer: B because leaves curling when touched is a negative tropism

Explanation:

Explain what can increase the spread of cancer in the body.

Answers

Answer:

In metastasis, cancer cells break away from where they first formed (primary cancer), travel through the blood or lymph system, and form new tumors (metastatic tumors) in other parts of the body. The metastatic tumor is the same type of cancer as the primary tumor.

scientific evidence documents the pattern of evolution. the evidence exists in a variety of categories, including direct observation of evolutionary change, the fossil record, homology, and biogeography. sort the following examples into the correct categories. drag each phrase to the appropriate bin.
- Development of drug resistant bacteria
- Discovery of transitional forms of horses
- Discovery of shells of extinct species
- Similarities in mammalian forelimbs
- Same genetic code in fireflies and tobacco plants
- Vestigial pelvis in right whales
- Similarity of endemic island species to nearby mainland species
- The high concentration of marsupial species in Australia

Answers

The following are the examples of scientific evidence documents the pattern of evolution and their respective categories: Categories of observation of evolutionary change.

What is the scientific evidence?

Development of drug-resistant bacteria: Discovery of transitional forms of horses, Fossil record, Discovery of shells of extinct species. Homology Similarities in mammalian forelimbs. Same genetic code in fireflies and tobacco plants. Vestigial organs Vestigial pelvis in right whales Biogeography Similarity of endemic island species to nearby mainland species.

The high concentration of marsupial species in Australia. The scientific evidence documents the pattern of evolution that exists in a variety of categories. These categories include homology, biogeography, direct observation of evolutionary change, and the fossil record.

Answers

Answer:

Explanation:

pH ranges from 0 to 14, with 7 being neutral. pHs less than 7 are acidic while pHs greater than 7 are alkaline(basic)

Which of the following cognitive skills have not been displayed by animals? A. Using tools B. Forming concepts C. Transmitting culture D. Using syntax.

Answers

A cognitive skill which have not been displayed by animals is: D. Using syntax.

A cognitive skill is also referred to as cognitive ability and it can be defined as a brain-based skill that is required by a living organism for the manipulation of information, acquisition of knowledge, reasoning and performance of various tasks from the simplest to the most complex.

Some examples of the cognitive skills that have been displayed by animals include the following:

The use of tools.The transmission of culture.The formation of concepts.

However, animals do not speak words or have a spoken language and as such they do not have the cognitive skill to use syntax.

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Answer:

It’s D

Explanation:

On edge 2022

!PLEASE ANSWER ASAP! How much of farmed aquaculture in the US consists of oysters?

Answers

two thirds

Explanation:

The removal of both the left and right hippocampus will ultimately result in:_____.
a. the inability to form non-declarative memories.
b. the inability to recognize stimuli.
c. the inability to form declarative memories.
d. the inability to express emotions.

Answers

Answer:

C. the inability to form declarative memories ;)

Explanation:

Granite that is
uplifted to the
surface has a
great reduction
in pressure. The
surface of the
rock expands and
cracks into slabs
that break away
from the solid
surface.

Answers

Granite that is uplif tree d to the sueca great reduction

Which is the biggest muscle in the human body?

a
gluteus maximus
b
gluteus minimus
c
sartorius
d
heart

Answers

Answer:

a. gluteus maximus

Explanation:

Cause it is

Answer:

A — gluteus maximus

Explanation:

believe it or not man

apparently the butt is the biggest

who knew

Which is the biggest muscle in the human body? agluteus maximus bgluteus minimus csartorius dheart

Evaluate the statements below and choose all that are true with regard to enveloped viruses. A. M protein may be located on the inner surface of the envelope
B. Envelopes are interior to the capsid
C. Influenza neuraminidase and hemagglutinin spikes protrude from the envelope D. Phages that lyse their host cell acquire an envelope E. Viruses of animal cells that bud out of a host cell acquire an envelope

Answers

A. The statement "M protein may be located on the inner surface of the envelope" is true.
B. The statement "Envelopes are interior to the capsid" is false because envelopes are exterior to the capsid.

C. The statement "Influenza neuraminidase and hemagglutinin spikes protrude from the envelope" is true.

D. The statement "Phages that lyse their host cell acquire an envelope" is false because bacteriophages, or phages, do not typically acquire an envelope.

E. The statement "Viruses of animal cells that bud out of a host cell acquire an envelope" is true.

Matrix (M) proteins can be found on the inner surface of the viral envelope, providing structural support and linking the envelope to the viral capsid. Envelopes are exterior to the capsid. They surround the capsid and contain lipids and proteins.

Influenza viruses have two main surface glycoproteins, neuraminidase and hemagglutinin, that form spikes protruding from the viral envelope. Bacteriophages, or phages, do not typically acquire an envelope. They have a protein capsid that surrounds their genetic material. Many enveloped animal viruses acquire their envelope by budding out of the host cell. The viral envelope is derived from the host cell membrane during this process.

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Question 6 1 pts The fossils of Pakicetus, Ambulocetus, Rodhocetus, and Dorudon are examples of fifteen million years of evolution between Indohyus and Balaena (modern baleen whale). demonstrating the O adaptive traits O analogous traits O transitional fossils O homologous traits Perform the indicated operation and simplify the result.4x^2 - y^2- 8x^2 + 10xy + 3y^2Multiplied by 4x^2 - 9xy - 9y^22x -5x - 3y^2 What is wiser: freely offering your respect or love, or having them earned? why? how many 106 w lightbulbs can you use in a 130 v circuit without tripping a 15 a circuit breaker? (the bulbs are connected in parallel, which means that the potential difference across each lightbulb is 130 v.) answer in units of bulbs. Describe the effects on the ecosystem that would occur if the coyote population decreased Daniel deposits $20,000 into an account earning interest at 6% per year compounded quarterly. He wishes to withdraw $400 at the end of each month. For how many months can he make these withdrawals You are a student doing summer healthcare work in a small village in Central America. You have been told that the local people have serious health problems related to iron deficiency anemia. There are no vitamins available for them to take. Consider alternative methods with which iron levels could be increased. Are Cannon's total sales increasing at a faster rate when the amount of money spent on advertising is $80,000 or $130,000? institutional theory can be defined as . a. the theory that organizations operate according to taken-for-granted institutional norms and rules b. the relevance or importance of an event or decision in the eyes of the individual, work group, and/or organization c. the ability to perceive whether a situation or decision has an ethical dimension d. a thought experiment that examined how individuals would formulate principles if they did not know what their future position in society would be e. the principle that states that each person has basic rights that are compatible to the basic liberties of others Once you have taken notes, you should not alter them.a. trueb. false your crazy uncle left you a trust that will pay you $26,000 per year for the next 21 years with the first payment received one year from today. if the appropriate interest rate is 5.9 percent, what is the value of the payments today? Give the formula of the salt, bolding or underling the ion of interest. Based on the measured pH, determine if the ion in each salt is acidic, basic, or neutral. which has the smallest dipole-dipole forces?which has the smallest dipole-dipole forces?ch3 brh 2 ohclbrcl find the projection of u = i j k onto v = 8i j 9k. identify the epidemiologic triad, including host, agent, and environmental factors as related to hiv. Read the sentence below and answer the question that follows.The Centennial High School parking lot is five blocks down from the softball field."These directions are an example of describing a place by giving itslocationA. spatialB. absoluteC. relativeD. exact You must decide what proportion of your wealth, w, to invest in two risky assets. Let the return to these two assets be X and Y respectively. The return to the portfolio, P, can be described as: P= When a marketing manager thinks about the needs customers want satisfied, rather than how one product beats another, this marketing manager is looking more broadly at the ______ market. find an equation of the vertical line through(8,9) in the form axbyc, where a, b, and c are integers with no factor common to all three, and a0. Cynthia makes 4 deposits of $50 each and 3 withdrawals of $75 each. What is the total change in Cynthia's account?