Answer:
It is important for the cell to be able to bring necessary nutrients immedriately where it needs to and to be able to dispose of harmful byproducts of the cell process. It is equally important to be able to regulate water concentration.
Answer:
For the first question, you have to first understand how cells work. Cells transport nutrients and water through their cell membrane, and it's their only way of transporting things they need in and out of their interior. Hence, a larger surface area would be best for cells to survive.
You might ask, but then why wouldn't it be better for cells to be bigger if a larger cell membrane is beneficial to their survival? After all, as the cell gets bigger, their cell membrane gets bigger too!
Unfortunately, you'd be forgetting one thing: the insides of the cell, otherwise known as the volume of the cell, grows too. So, it becomes a mathematical question at this point: imagine a cube. If you doubled it's side length, your surface area would grow by 4 times ([tex]2x \cdot 2x = 4x^{2}[/tex]), and your volume would grow by 8 times! ([tex]2x \cdot 2x \cdot 2x = 8x^{3}[/tex])
Hence, if the cell got bigger, it's volume would grow faster than the surface area, and the cell would start to build up carbon dioxide and other waste materials.
This is the main reason why being small helps cells survive. Of course, there are many other reasons, like compactness, efficiency and survivability, but this is the main reason.
Of course, if you're smart, you'd have already discovered one thing: this is exactly the reason for your second question as well. Since a large organism being made of one or few large cells would greatly decrease surface area-to-volume ratio, the efficiency would plummet and the large organism would die. Hence, many small cells would help large organisms maintain homeostasis.
Explanation:
Hope this helped!
Separation of homologues occurs during
Group of answer choices
meiosis I.
fertilization.
mitosis.
meiosis II.
Answer:
Meiosis I
Explanation:
The separation of homologues occurs during meiosis I. The Option A.
When does the separation of homologues occur during cell division?During meiosis I, the process of cell division specifically designed for the formation of gametes, the separation of homologous chromosomes occurs. Meiosis I consists of several phases including prophase I, metaphase I, anaphase I, and telophase I.
In prophase I, homologous chromosomes pair up and exchange genetic material through a process called crossing over. During metaphase I, the pairs of homologous chromosomes align at the center of the cell. Then, in anaphase I, the homologous chromosomes separate and move toward opposite poles of the cell.
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Which of the following organelles are found in an animal cell, but not in a plant cell? (Select all that apply)
Endoplasmic Reticulum
Vesicles
Lysosomes
Ribosomes
Mitochondrion
Centrioles
Answer:
Lysosomes
Centrioles
Explanation:
HELP ME OUT PLEASE!!
Answer:For number three it is summer
Explanation:
The bases in DNA that can pair together are called;
A.
Complementary bases
B.
Purines
C.
Nucleotides
D.
Pyrimidines
Answer:
A. Complementary bases.
Explanation:
i think im right...
Answer:
A
Explanation:
Its complementary because the other 3 are all singular, and A is a pair of 2, so from that alone you know its the answer. But additionally, since they can pair together, they are complementary.
What is the name of the organisation who visits the hospital, reviewing evidence and asking staff questions to ensure compliance with the health and social care act?
Answer:
The name of the organization is "Health and Care Professions Council"
Explanation:
The Health care act shared perspective on quality, anticipates administrations to be fair to all and spotlight on improving quality. It will ensure that the nature of care doesn't change in light of the qualities of individuals utilizing administrations, their families and carers, for example, sexual orientation, race, handicap, age, sexual direction, religion, conviction, sex reassignment, or on the other hand conjugal or common association status. Any place individuals use care, it will be high caliber.
Unstable individual atoms are made stable as a result of
A)
more, physical change.
B)
less, physical change.
more, chemical bonding.
D)
less, chemical bonding.
Answer:C
Explanation:USA test prep
The image shows a mountain peak in Asia.
A snow covered mountain top.
Which force most likely created this mountain?
compression
gravity
shearing
tension
Answer:A- compression
Explanation:
Answer: a
Explanation:
took test
the diagram below shows the procedure scientists used to clone a frog from the nucleus of a skin cell. the tadpole produced by the cloning process will be genetically _______________________
a. most similar to the frog the egg cell came from
b. most similar to the frog the skin cell came from
c. different from both frogs that the cells came from
d. identical to both frogs that the cells came from
Answer: most similar to the frog the skin cell came from
Explanation:
I just took the test
The tadpole produced by the cloning process will be genetically most similar to the frog the skin cell came from. Thus, the correct option for this question is B.
What is the Cloning process?The cloning process may be defined as a type of technique that scientists significantly use to construct exact genetic copies of living things. This process is used to create an exact genetic replica of another cell, tissue, or organism.
The copied material, which has the same genetic makeup as the original, is referred to as a clone. The skin cell of the frog is divided through the process of mitosis which produces cells that are genetically identical to the parental cell.
The process of meiosis is carried out by gamete cells or germ cells which produce daughter cells that are not genetically identical to the parental cell.
Therefore, the tadpole produced by the cloning process will be genetically most similar to the frog the skin cell came from. Thus, the correct option for this question is B.
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What’s the Summary of the ‘process of the carbon cycle’
Answer:
Explanation:
First, the carbon moves from the atmosphere to plants. Then, the carbon moves from plants to animals. Next, the carbon moves from plants and animals to soils. After that, the carbon moves from the soil to the atmosphere through nitrification. Elsewhere, the carbon moves from fossil fuels to the atmosphere when fuels are burned. Lastly, the carbon moves from the atmosphere to the oceans.
During a chemical reaction, the quantity of products
O increases.
O stays the same.
O decreases
O fluctuates.
Im pretty sure it stays the same
identifies the building blocks/monomers of carbohydrates, proteins, and lipids and describes how these monomers are joined together to make larger molecules
Answer:
pizza
Explanation:
gott it right on test
Which type of bond is formed in nitrogen gas?
Answer:
Covalent bonds are formed in the nitrogen gas.
Explanation:
"Nitrogen atoms will form three covalent bonds (also called triple covalent) between two atoms of nitrogen because each nitrogen atom needs three electrons to fill its outermost shell (Lumen Learning)."
I hope this helps! Have a great day!
PLEASE HELPPPPP!!!!!!!!!!!!!!
Describe how you can use a Punnett square to predict the probability that offspring will inherit a trait
Answer:
punnet squares show an estimated percentage
Explanation:
they determine the probability of an offspring having a particular genotype. u fill in the genotypes with the dominant and ressessive traits then u find the probalility of percentage. if it has moredominant traits as the percantage then it will be dominant if not it would be recessive
Please help me with this. All you ahev to do is just list a few features and behaviors of a sunflower.
Answer:
Features: Rough leaves in a long spiral pattern, Native to America
behaviors: heliotropism
Explanation:
Which compound that provides energy in cells is made in every tube where cellular respiration is occuring?
Answer:
ATP
Explanation:
Adenosine triphosphate, commonly known as ATP, is the chemical molecule that stores and provides/releases energy in cells. ATP is needed by the cells of every living organism and is obtained via a process called CELLULAR RESPIRATION.
Cellular respiration is the process whereby cells breakdown food molecules (sugar) to synthesize energy storing molecules called ATP. Hence, in every tube where cellular respiration is occuring, ATP is the produced molecule that provides energy.
Can someone pls do this for me!! PLS HELP 30 points!!!!
Students will:
Play the role of an environmental activist who wants to share
your concern for the current extinction event that is supported
by evidence.
Research the evidence and relate it to past
extinction events.
Research 3 animals that are endangered and construct an
explanation for how the current state of these animals provides
evidence for the 6th mass extinction event.
You will then plan, write a script, and record a video or podcast.
Submit your digital production to your teacher.
Answer:
I can help you with the Endangered animals part and how they are today!!!
Explanation:
The Amur Leopard : Critically Endangered - A species of Leopard that lives in Russia and China. There are fewer than 100 left in the wild, 180 including all leopards in captivity.
The Western Lowland Gorilla : Critically Endangered - A species of primate that lives in montane, primary and secondary forest and lowland swampland in central Africa in Angola, Cameroon, Central African Republic, Republic of the Congo, Democratic Republic of the Congo, Equatorial Guinea and Gabon. Only 100,000 are estimated to thrive in the wild
The Javan Rhino : Critically Endangered - The Javan rhinoceros, also known as the Sunda rhinoceros or lesser one-horned rhinoceros, is a very rare member of the family Rhinocerotidae and one of five extant rhinoceroses. It is Estimated that only 67 Javan Rhinos Exist in the wild today!
Hope this helped you!! Have a Wonderful Holiday!!!
lack of vegetables in diet
Answer:
Without veggies, you're more prone to digestive disorders such as constipation, hemorrhoids, and diverticulosis. Owy! Vegetables contain cellulose, which increases stool weight, eases passage, and reduces transit time.
Vegetables are edible part of the plant. It is largely consumed by different animals. These are highly rich portions of plants with starch. The difference between the fruit and vegetable is that fruit is ovary portion and other edible parts of plant are categorized as vegetables(roots, edible photosynthetic parts).
_____________________________________[tex]\huge\textbf{Nutrients}[/tex]Eating vegetables provides many health benefits to our body. It reduces the chances of chronic diseases. Chronic diseases are those disesases which are long lasting such as cancer, heart diseases, diabetes etc.
No Fats and Cholestrol The vegetables do not have animal fat and cholestrol which makes them great for consumption who have heart diseases or which are recommended to have low fats diet by the doctor. Cholestrol adds into the lump of LDL(low density lipoproteins) inside the blood vessels which cause the blockade of the vessel causing heart diseases. Vitamins Since the plants absorb nutrients and ions from the soil so they are really rich in Vitamins. Vitamin A, C and K are common in plants.Rich in Potassium and Magnesium They have potassium, magnesium, folic acid in large quantity and Dietary fibers. _____________________________________[tex]\huge\textbf{Benefits}[/tex]Potassium maintain blood pressure.The Vegetable Sources of potassium include sweet potatoes, white potatoes, white beans, tomato, beet greens, soybeans, lima beans, spinach, lentils, and kidney beans.
Dietary fiber helps reduce blood cholesterol levels and may lower risk of heart disease. Fiber is important for proper bowel function. It helps reduce constipation and diverticulosis. Fiber-containing foods such as vegetables help provide a feeling of fullness with fewer calories. Folate (folic acid) helps the body form red blood cells. In Pregnant women, this reduces the risk of neural tube defects, spina bifida, and anencephaly during fetal development. Vitamin A keeps eyes and skin healthy and helps to protect against infections. Vitamin C helps heal cuts and wounds and keeps teeth and gums healthy. Vitamin C aids in iron absorption._____________________________________[tex]\Large\textbf{Diseases caused by Desiciency of Vegetables}[/tex]
The deficiencies caused by the lack of vegetable in diet are listed as below,
Cardiovascular Diseases There is high risk of CVDs as patient would use Animal fats which are rich in cholestrolDigestive Problems The vegetables have dietary fibers thus help in Digestion, If there is no vegetables in the diet then person would suffer from constipation or irregular bowelCancer Evidence suggests that including fruits and vegetables in the diet reduces the risk of cancer. Berries contain anthocyanin, which has demonstrated an inhibitory effect in colon cancer.Vision Green leafy vegetables containing carotenoids, increase the eye’s visual performance Depression Numerous studies have found links between the consumption of fruit and vegetables and depression.Metabolic Disorder Metabolic syndrome is characterized by impaired blood glucose, elevated blood pressure, dyslipidemia, and abdominal obesity. A diet rich in fruits and vegetables is associated with a reduced risk of diabetes mellitus, hyperlipidemia, and hypertension.Scurvy It is caused by the deficiency of Vitamin C.Nyctalopia It is also known as Night Blindness, It is caused by the deficiency of Vitamin A.Haemophilia Caused by the deficiency of Vitamin K._____________________________________Best Regards,'Borz'4. If a Red (RR) and White flower (WW) were crossbred, resulting in 100% RW, what phenotype(s) would been seen in the RW genotype according to the rules of codominance?
Answer:
Red and white in the flowers.
Explanation:
The petals should be a mix of red and white together. This may come out as dots, swirls of colors, or multiple petals of each color.
Assume that producers in an ecosystem have 1,000,000 kilocalories of energy. How much energy is available to primary consumers?
this is the only question i dont understand on my worksheet please hellp
Answer:
If an ecosystem has 1,000,000 kilocalories of energy in the producers only 100,000 kilocalories of energy would be available to the primary consumers.
Explanation:
I hope this helped!
Identify the phases in the life cycle of small and big stars. supernova: In this stage, the star collapses and produces elements heavier than iron. planetary nebula: In this stage, the star emits strong energy pulses that push away the outer layers creating a cloud of ionized gas around the core. neutron star: In this stage, the star has reduced to an extremely dense core. white dwarf: In this stage, the star has reduced to a dense core.
Explanation:
Some Astronomers believe the life cycle of small stars begins in this order:
Planetary nebula phase: this phase is the result of the previous red giant phase (when the star turns red in color). However, at this stage, the star keeps expanding, glowing, and getting hotter as it strives to complete its life--cycle.White dwarf phase: As the name implies, the star now has a reduced size and a dense core than during the Nebula phase, while still glowing with surface temperatures of over 100,000°C.Neutron star: This stage occurs next after the White dwarf phase which may result in the final death of the star. Here the star is reduced to an extremely dense core.While the life cycle of big stars begins in the order:
Supernova phase: At this phase, the star collapses and produces other heavier elements.Neutron star phase or may formBlack Holes.please help with all of them,, i will be giving “thanks” && brainliest:) i’m bugging you PLEASE HELP ASAP
Answer:
22. C
23. C
24. Not clear, maybe 18%
25. Left ventricle, because according to the graph nearly 50% of the organ contains mitochondria, more than the left atrium.
Explanation:
22. Active transport requires cell's energy to move molecules, usually in the form of ATP.
23. This is a trick question, you might think it is diffusion or osmosis, but is is exocytosis. Diffusion and osmosis don't require vesicles for transport. It isn't endocytosis, because that is moving molecules inside the cell. The question asks for moving out the cell.
24. Look at the chart, it is less than 20, but more than 10 and more than halfway. I am not sure exactly the percentage, I would approximate it to be 18%.
25. Most likely left ventricle.
please give thanks :)
NEED THIS ANSWER ASAP
What are the major structures and functions of the reproductive
system?
Answer: The primary reproductive organs are the gonads, which produce the gametes and hormones. The secondary, or accessory, structures transport and sustain the gametes and nurture the developing offspring
Explanation: Searched this up, hope its correct, I learned something like this in Bio last year
The _________________ are new substances that are created following a chemical reaction.
Group of answer choices
products
reactants
coefficient
chemical reaction
Answer:
products
Explanation:
reactants combine to produce products in a chemical reaction
Answer:
reactants is the answer
plz help will give brainliest
Answer:
The valley was good for farming. The surrounding mountains provided pastures for herds. The region contained rivers for fresh water.
1. The diagrams below represent the crystal shape and type of cleavage of
two different minerals. The crystal shape and type of cleavage of these
two minerals are determined mainly by the minerals
Crystal shape: cubic
Cleavage: three directions
- all at right angles
O A) color and type of luster
Crystal shape: rhombohec
Cleavage: three directions
- not at right angles
B) streak and hardness
OC) composition and atomic arrangement
OD) density and magnetism
Answer:composition and atomic arrangement
Explanation:
Explain how a defiancy of magnesium could cause yellows leaves or stunted growth
Answer:
not enough pigment in the plant
Explanation:
if there is not enough pigment in a plant it cant grow properly and it cant change its color.
According to the cell theory, where do cells come from?
Answer:
preexisting cells :)
Explanation:
Answer:
Cell theory is the historic scientific theory, now universally accepted, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells. Cells are the basic unit of structure in all organisms and also the basic unit of reproduction.
Explanation:
Hope this helped!!
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-BB
can anyone help me with this?
1.This diagram shows an ionic bond formed between the Chlorine and Sodium atoms.
2.This diagram show a covalent polar bond between one oxygen atom and two hydrogen atoms.
are based on common human or environmental properties, such as
population, average temperature, and political boundaries,
O A. Physical regions
O B. Functional regions
O C. Perceptual regions
D. Formal regions
Why does humus tend to increase with the clay content of soil?
A.
As the clay content increases, there is more surface area in the soil for organic matter to adsorb to, which decreases the rate of decomposition.
B.
As the clay content increases, the amount of plant lignin in the soil increases.
C.
As the clay content increases, the permeability decreases, which increases the rate of decomposition.
D.
As the clay content increases, there is more surface area in the soil for organic matter to adsorb to, which increases the rate of decomposition.
Answer:
A.
As the clay content increases, there is more surface area in the soil for organic matter to adsorb to, which decreases the rate of decomposition.
Explanation:
This is true because, humus which is the dark rich matter made up of organic matter would be able to be adsorb into the clay content of the soil due to the size of the particles component. The surface area in the soil is a strong factor when compared with other soil type with smaller surface area.