Tightly closed cones in some conifers are adapted to open in response to

Answers

Answer 1
Conifers are the gymnosperms that are adapted to survive in cold temperatures. The leaves of the conifers are needle-like to survive in the harsh climatic conditions. Due to needle-like shape of the leaves, the leaves can not hold snow in winters. Similarly, the cones are also adapted to survive in cold temperatures.
The tightly closed cones in some conifers are adapted to open in response to CHANGE IN ENVIRONMENTAL CONDITIONS. The cones close when the weather dry.  

Related Questions

A tree grows and increases its mass. explain why this phenomenon is not a violation

Answers

A tree is not an isolated system. It gets nutrients from surrounding environment to grow and build its mass. A total mass of tree plus its environment is constant. 

Northern coniferous forests, characterized by long, cold winters and conifers with short needles, are the largest terrestrial biome. true or false?
a. True
b. False

Answers

i think it is true for show

The correct answer is a. True

Taiga - Cold in the winter and warm in the summer, the taiga is the world's largest land biome.

What is northern coniferous forest?

coniferous forest, vegetation composed primarily of cone-bearing needle-leaved or scale-leaved evergreen trees, found in areas that have long winters and moderate to high annual precipitation. The northern Eurasian coniferous forest is called the taiga or the boreal forest.

Where is the northern coniferous forest located?

The northern coniferous forest, or taiga, extends across North America from the Pacific to the Atlantic, across northern Europe through Scandinavia and Russia, and across Asia through Siberia to Mongolia, northern China, and northern Japan.

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) when cells are broken open, dna is released from cells into solution. name at least two other macromolecules that are also released from the cells, and the places they are found in the cells.

Answers

Protein, nucleic acid, carbohydrate and lipid that are released from the cell.

Protein and nucleic acid are the two macromolecules that are also released from the cells when the cell is broken up because these two macromolecules are present in the cell and performs different types of functions that helps the cell in growth and development.

There are two more macromolecules are present such as carbohydrates and lipids in the cell that are also very important for cell so we can conclude that when the cell is broken, protein, nucleic acid, carbohydrate and lipid are released from the cell.

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Sleepwalking is most likely to occur in _____.

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The answer to this question would be: NREM sleep

There are few phases of sleep. In NREM(non rapid eye movement) phase, the body muscle is not paralyzed so the movement is still possible. When someone enters the sleep phase not properly, they might be stuck in the NREM phase. Their mind is still working but the muscle is not paralyzed so they are capable to move unconsciously

Proteins are made of amino acids. what elements make up amino acids? look up the structures of the 20 amino acids in your textbook and list the 5 elements present.

Answers

DNA, RNA, ATP that is wat make it up

Estimate how much the brain would swell due to osmosis if the concentration of the cerebrospinal ±uid fell to 280mm. in other words, ³nd what the new volume

Answers

Since the average osmotic pressure of the brain is 300mM and the concentration of the solution is 280mM, that means there is 20mM difference between the brain cells and CSF. This will induce osmosis and cause water to move from the CSF into the brain until the concentration becomes same. Assuming brain volume is 1200ml and the CSF constantly replaced., then the estimation of fluid should be: 20mM/300mM * 1200ml= 80 ml
If it made percent it should be: 80ml / 1200ml= 6.67%
Final answer:

Estimating how much the brain would swell due to a drop in cerebrospinal fluid concentration to 280 mm involves understanding osmosis and brain-CSF osmotic balance, which is crucial for preventing conditions like hydrocephalus. The exact new volume would need medical evaluation.

Explanation:

The question concerns the phenomenon of brain swelling due to osmosis caused by changes in the concentration of cerebrospinal fluid (CSF). When the concentration of CSF falls, such as to 280 mm, water can flow into the brain cells due to osmotic imbalances, potentially leading to a condition like hydrocephalus. However, estimating the exact new volume of the brain due to osmosis requires sophisticated medical instruments and knowledge of osmotic pressure in the brain's environment. Normally, the pressure in the CSF ranges from 5 to 12 mm Hg, and deviations from this range can affect the brain's volume and pressure dramatically.

For example, if the gauge pressure in the fluid surrounding the brain increases significantly, it can lead to an increase in the outward force on the skull, even causing the skull to grow abnormally large in infants with hydrocephalus. In adults, a reduction in the CSF concentration can cause severe headaches and damage due to the brain resting upon the skull.

The specific volume change due to a CSF concentration drop to 280 mm would vary based on individual circumstances and would require medical assessment to determine.

Which part of the blood is most efficient at carrying oxygen? select one:
a. blood plasma solution
b. blood plasma proteins
c. blood platelets
d. membrane molecules of red blood cells
e. hemoglobin molecules of red blood cells next?

Answers

Which part of the blood is most efficient at carrying oxygen ?


Correct Answer: E. hemoglobin molecules of red blood cells 


Good luck and have a nice Benevolentpuppy day!

Which of the following has the highest viscosity? ice cold water,honey,coffee, milk

Answers

Honey, since viscosity describes the thickness or stickiness of something

Answer: water

Explanation:

The scientific method is
a. reliable.
b. impartial.
c. limited in when it can be used.
d. all of these are correct.

Answers

A. reliable, it is a well thought out formula 

What structural feature of cells can allow molecules to flow directly from the inside of one cell to the inside of the next? (a) cilia (b) plasmids (c) plasmodesmata (d) choroplasts PLEASE HELP ME!

Answers

C . Plasmodesmata is correct :)
c is the right answer

whats the relationship of the organelles of the endomembrane system

Answers

They all work together to package, label, and ship protein and molecules.
Final answer:

The organelles of the endomembrane system - the nuclear envelope, endoplasmic reticulum, Golgi apparatus, lysosomes, and vacuoles - interact and cooperate via direct contact or vesicle transfer. Their individual functions contribute to the overall function of the cell in terms of production, modification, transportation, and disposal of substances.

Explanation:

The organelles of the endomembrane system are interconnected through direct contact or by the transfer of membrane segments as tiny vesicles. The endomembrane system consists of the nuclear envelope, the endoplasmic reticulum, the Golgi apparatus, lysosomes, and vacuoles.

The nuclear envelope is contiguous with the endoplasmic reticulum, which manufactures lipids and proteins. These products are then sent to the Golgi apparatus in vesicles, which modifies them for their specific functions and addresses them for transport to their proper locations. Lysosomes contain enzymes that break down waste materials and cellular debris, while vacuoles are storage organelles that can hold a variety of substances.

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Compare and contrast tidal volume (tv), inspiratory reserve volume (irv), expiratory reserve volume (erv), and vital capacity (vc). why and how could an individual's tidal volume decrease and increase?

Answers

Tidal volume was the measure of air that regularly enters the lungs amid calm relaxing. The Expiratory Reserve volume was the measure of air you can powerfully breathe out pas an ordinary tidal termination. Then, the vital capacity was the measure of air a man can move into or lungs and is the entirety of the considerable number of volumes aside from leftover volume. Amid practice is the point at which the tidal volume could increment because of the additional carbon dioxide

A pressure (decubitus) ulcer that has a skin break through all layers of the skin is classified as stage _____.​

Answers

This is classified at being stage III. In stage III, the decubitus ulcer begins to show a breaking in the skin, throughout all layers. This is the most dangerous stage, and needs to be treated almost immediately. This will help to prevent any further damage that could be caused.

What happens to any matter that is not used by consumers in a food chain

Answers

Matter that is not used by consumers in the food chain become "detritus". Which is simply just waste. It is left to decompose. 

Answer:

Material not consumed by consumers in the food chain generates the debris chain.

Explanation:

Debris chain, where the basis is non-living organic matter not consumed by consumers, is due to the decomposition of vegetable and animal bodies and their droppings. This matter is processed by decomposing microorganisms (fungi and bacteria), which release it in the form of plant nutrients, or in the form of debris that will be consumed by detritivorous organisms, in turn consumed by carnivores.

On average, women receive only ____ milligrams of iron per day​. science forum

Answers

On average, women receive only 12 to 13 milligrams of iron per day. 
Iron is a mineral that is important to a healthy body. 
The Institute of Medicine recommends 18 milligrams to the women of childbearing age because of the monthly loss of iron in menses. When a pregnant woman increases iron requirements to 27 milligrams daily.

Bacteria reproduce asexually by A) mitosis. B) meiosis. C) conjugation. D) binary fission.

Answers

It is D) binary fission. 
I would also go with the answer D) binary fission
Hope this helps!

Genetics, botany, and zoology are all branches of what subject ?
A. Chemistry
B.biology
C.physics
D.astronomy

Answers

B. Biology, Biology is the study of life. All of these branches lead to Biology since they deal with living organisms.

Final answer:

Genetics, botany, and zoology are all branches of biology, which is the overarching science concerned with the study of life and living organisms.

Explanation:

Genetics, botany, and zoology are all branches of biology, which is the correct answer to your question. Biology is the scientific study of life and living organisms, encompassing various specialized fields. For instance, genetics is concerned with how traits are inherited, botany focuses on the study of plants, and zoology is the branch that specializes in the study of animals. Other branches of science include fields such as physiology, the study of the functions of living organisms; geophysics, which explores the physical processes and properties of Earth; and agriculture, which involves the cultivation of plants and animals for food, fiber, biofuel, and other products beneficial to life.

True or false: natural monopolies may occur

Answers

the answer would be true
true, because in certain markets such as railways, it is just more efficient if there is only one supplier.

A 7 kilogram cat is resting on top of a bookshelf that is 1 meters high. What is the cat’s gravitational potential energy relative to the floor ?

Answers

The equation of motion that is suitable for this situation is:
Potential energy = MgH, Where:
M = mass = 7
g = gravitational acceleration = 9.8 m/s
H = height = 1
Potential energy = mgh = 7 * 9.8 * 1 = 68.6.
Therefore, the gravitational potential energy relative to the floor is approximately 69 J.

what is not a characteristic of life?

Answers

The seven characteristics of life include: responsiveness to the environment; growth and change; ability to reproduce; have a metabolism and breathe; maintain homeostasis; being made of cells; passing traits onto offspring

Answer:

Immortality is not a characteristic of life.

Explanation:

Firstly the characteristics of life is responsiveness to the environment, growth  and change, reproduction, metabolism, maintain homeostasis, being made of cell, and passing trades on to offspring.

We know that life is limited so immortality or unlimited duration of existence is not a characteristic of life.

An allele is one of the alternative forms of a gene that governs a trait. If a fern plant is heterozygous for a particular trait, how can the alleles that control that trait be described? A. one dominant, one recessive B. two dominant C. three recessive, one dominant D. two recessive

Answers

"Hetero" means different. So the plant has two different alleles; one dominant and one recessive as in (A).

Answer:

The correct answer is A. one dominant, one recessive

Explanation:

A gene can have many alternative forms called alleles. These alleles can be present in homozygous condition or heterozygous condition. In homozygous condition chromosome contains two same forms of an allele of a gene. In heterozygous condition a chromosome contains two different forms of an allele of a gene.  

These alleles can be dominant or recessive. A dominant allele can be expressed in both homozygous and heterozygous condition, but a recessive allele will only express in homozygous condition.

So If a fern plant is heterozygous for a particular trait then it contains one dominant and one recessive allele because in heterozygous condition two different forms of allele is present. Therefore the right answer is A.

What evidence would you look for to see if a chemical reaction has occurred?

Answers

a change in the substance by temp, color, 

Energy conversion within an animal cell would be severely limited by removal of the cell's

Answers

mitochondria is your answer ..

How does the temperature affect enzyme function? use evidence from your data to support your answer?

Answers

If the temperature is too high, it can alter the structure of the enzyme and make it unable to bind to the substrate. But, if the temperature is too low the chance for the enzyme to collide with the substrate will be lower too. The enzyme works best in the highest temperature before its structure changed.
The data from the experiment should look like a bell. There is an optimal temperature for the enzyme and increasing/decreasing from that temperature will result in reduced reaction speed.
An increase in temperature will increase the reaction rate of enzymes. For instance, a 10 degree celsius rise in temperature will increase the activity of most enzymes by 50% to 100%. But too high temperature negatively affect enzymes and their functioning.



Scientists always prove or disprove their explanations by _____.


gathering evidence


using mathematical formulas


recording thoughts


doing laboratory experiments

Answers

Correct answer: A). Gathering evidence

The scientific explanation uses measurements and observations in order to explain something in the natural world. The Scientist uses the scientific method to collect evidence in the experiment that is related to the hypothesis.

They can gather the evidence by just observing the natural world and its phenomena or by performing an experiment in the laboratory or by running a model.

Hence, the correct answer would be option A.

Why do different individuals such as siblings have different restriction enzyme recognition sites?

Answers

The DNA material found in each person is unique, no two individual have the same type of DNA material. Because of the differences in the DNA molecule of individuals, the restriction enzyme recognition sites are also different too. Restriction enzyme recognition sites refer to the different locations on a DNA molecule which contain specific base pair nucleotide that are recognized by restriction enzymes.

Channel proteins that form a narrow passageway in gap junctions are known as which of the following

Answers

Channel proteins which form a narrow passageway in the gap junctions are known as CONNEXONS.
Connexons are usually found at gap junctions, they form passage way which allow small molecules and ions to pas from cell to cell. Gap junctions are typically found in epithelial cells where the movement of ions facilitate coordinated functions. 
Final answer:

Connexons are the channel proteins that form a narrow passageway in gap junctions.

Explanation:

Channel proteins that form a narrow passageway in gap junctions are known as connexons.

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The part of the cell that regulates what can enter or leave is the

Answers

Yes, the cell membrane regulates what enters the cell and leaves the cell. The cell membrane is a fluid mosaic consisting of a phospholipid bilayer and integral and peripheral proteins. The proteins of the membrane serve many purposes: transport, receptors, etc. The cell membrane is amphipathic, meaning is has hydrophilic and hydrophobic regions.

Which best describes the vulva?

Answers

The female exterior genitals. 

I hope this helps!

Answer:

The vulva refers to the female external genitalia.

It includes labia majora, labia minora, cli-toris, the opening of urethra, vagina, Mons pubis, and anus.

Cli-toris is located at the top of labia where internal labia meet.  

The opening of the urethra is located just below the cli-toris through which a female excrete or pee.  

Below the urethral opening, there present a vaginal opening. It provides the path for menstrual blood and babies to come out of the body.  

Mons pubis helps in cushioning the pubic bone.


The first genetic map, using drosophila to measure crossover frequencies, was actually and personally constructed by:

Answers

The first genetic map was constructed by STURTEVANT.
Sturtevant is an American geneticist, he constructed the first genetic map in 1913 using the drosophila chromosomes. 
Genetic map is the graphical representation of the arrangement of genes on a chromosome. Genetic map is used to locate gene or group of genes that determine particular traits.
The first genetic map was constructed by Alfred Sturtevant. In 1913, he was the first constructing a genetic map of chromosome. He worked on the biological model drosophila melanogaster next to Thomas Morgan, another geneticist.
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