Answer:
As a cell grows bigger its internal volume enlarges and the cell membrane expands. Unfortunately, the volume increases more rapidly than does the surface area and so the relative amount of surface area available to pass materials to a unit volume of the cell steadily decreases.
Explanation:
What are the roles of the brain and spinal cord in the central nervous
system?
Answer:
together, the brain and spinal cord form the central nervous system. This complex system is part of everything we do. It controls the things we choose to do—like walk and talk—and the things our body does automatically—like breathe and digest food
hope that helps
Answer: The central nervous system controls most functions of the body and mind. It consists of two parts: the brain and the spinal cord. The brain is the center of our thoughts, the interpreter of our external environment, and the origin of control over body movement.
Explanation: I've answered this question many times before
Where are red and white blood cells produced in the body?
Answer:
They form in bone marrow
Organs in the body help maintain homeostasis by distributing nutrients and
removing the
oxygen
energy
tissue
waste
Answer:
Waste
Explanation:
The body need to get rid of all its waste so that it can function properly...aka maintain homeostasis.
Hope this helps :)
Why do diseases spread more quickly in crowded conditions? ( I need a short paragraph like 4 sentences) ASAP pls
Answer:
the diseases spread more quickly because there will be alot of people touching and pushing and it will transfer the disease quicker. Many people will coughing too lol
Answer:
Because people might get in touch with each other eveyonen is really close to each other and when people breath someone might have the disease so that way eveyone will breath the same air in thw place they might get the disease
The chemical formula for a substance called sodium nitrate is
NaNO.. What elements make up sodium nitrare?
Answer:
D. sodium, nitrogen, oxygen
Explanation:
Let's break up NaNO3 into its separate chemical symbols:
Na, N, O
Na is the symbol for sodium
N is the symbol for nitrogen
O is the symbol oxygen
Answer:
D
Explanation:
NaNO3 consists of sodium cation and nitrate anion. The nitrate is NO3 which is made with nitrogen and oxygen.
Which of the following is NOT evidence that species evolved from a common ancestor?
Answer:
there is no following
Explanation:
i cqnt aswer the qwestion
In evolutionary biology, a group of organisms has a common origin when its members share a common ancestor. There is a wealth of evidence from official research that supports the theory of the origin of all living organisms on Earth, from a universal common ancestor.
Charles Darwin was the first to propose the theory of the universal origin of species through the evolutionary process in his work The Origin of Species. The last world common ancestor is the most recent ancestor of all living organisms, and is believed to have lived 3.9 billion years ago.
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Compound X increases the rate of the reaction shown below. CO2 + H2O X → H.CO. Compound X is most likely -
Answer:
an enzyme
Explanation:
In the given case, the compound X is a catalyst.
• Any substance in chemistry, which enhances the rate of a reaction without getting consumed itself is known as the catalyst.
• The naturally occurring catalysts accountable for several essential biochemical reactions are the enzymes.
• The majority of the catalysts used in a chemical reaction are the sulfides, oxides, and halides of metallic elements or of the semimetallic elements like aluminum, boron, and silicon.
Thus, in the given case, the compound X is a catalyst.
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pls help me with this!!!
Answer:
1. ( c)
2. (A)
3. (b)
Explanation:
prokaryotes have no nuclues and are unicelluar while Eukaryotes are multicellular with nucleus
the speed at which these reactions happen is called your ?
Answer:
The rate of a reaction is the speed at which a chemical reaction happens. If a reaction has a low rate, that means the molecules combine at a slower speed than a reaction with a high rate.
Answer:
Explanation:
The rate of a reaction is the speed at which a chemical reaction happens. If a reaction has a low rate, that means the molecules combine at a slower speed than a reaction with a high rate
which TWO statements summarize a way that an other-feeder gets food?
A- Sphagnum moss takes in energy from sunlight.
B- Euglenas carry out photosynthesis.
C- Bacteria take in food that has already been digested by a person.
D- Paramecia sweep food into mouth-like structures.
Answer:
A and B
Explanation:
I did it
Answer:
C- Bacteria take in food that has already been digested by a person.
D- Paramecia sweep food into mouth-like structures.
Explanation:
Took the quiz
A company decides to switch to solar energy to produce electricity for their building. Why might they have made this decision? Select the two correct answers.(1 point)
Answer: A company decides to switch to solar energy to produce electricity for their building. Why might they have made this decision? Select the two correct answers.
The two correct answers would be:
Solar energy systems have minimal environmental effects
Solar energy does not produce air pollutants or carbon dioxide
Explanation:
If you look up how to get solar energy it helps you easier understand why they have minimal environmental effects and how it does not produce air pollutants or carbon dioxide.
A business decides to transition to using solar energy to power their structure. Systems that use solar energy have negligible environmental impacts. Carbon dioxide or other air pollutants are not produced by solar energy.
What is Solar energy?The amount of sunlight that reaches the surface of the earth in an hour and a half is sufficient to meet all of the world's energy needs for a complete year.
Solar energy systems either use photovoltaic (PV) panels or mirrors to focus solar radiation to convert sunlight into electrical energy.
The basic principles of solar radiation, photovoltaic and concentrating solar-thermal power technologies, the integration of electrical grid systems, and the non-hardware components (soft costs) of solar energy are covered in the resources and information provided below.
Therefore, A business decides to transition to using solar energy to power their structure. Systems that use solar energy have negligible environmental impacts. Carbon dioxide or other air pollutants are not produced by solar energy.
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Assess Your Understanding
Calculate You push on a desk with a force of
120 N to the right. Your friend pushes on the
same desk with a force of 90 N to the left.
What is the net force on the desk?
Which food has the most carbohydrates?
A. beef
B. carrots
C. celery
D. mushrooms
E spinach
F.peanuts
Answer:
The answer would be peanuts, Which contain a total of 24 g of carbs.
Sorry if i'm wrong! i just went on a mini reasearch spree :3
Which statement is true of fungi?
A. Some fungi are parasites of plants & animals, causing diseases.
B. Fungi are all single-celled micro-organisms.
C. Fungi are classified in 5 major groups based on their life cycles.
D. Most fungi can be found in water habitats like ponds & lakes.
Answer:
A
Explanation:
B Fungi can be single celled or multi celled so they are not all single celled
C is not true, fungi are categorized into 4 classes
D not true fungi grow everywhere, most are not restricted to water
What is the value of having an international system for classifying and naming organisms?
Answer:
Everyone can understand what animal someone is referring to when they use the international name for the organism.
Explanation:
Since everyone uses different languages around the world, the international system helps such that they can understand each other without any language barriers and they can also quickly know which class the organism belongs to.
Siblings have similar traits because they inherit those traits from a common ancestor. How is this similar to some evidence for evolution? Similarities can be seen between siblings in species today, which shows common ancestry. Similarities can be seen among related organisms, which shows common ancestry. There are many differences between siblings in species today, which shows common ancestry. There are many differences between related organisms, which shows common ancestry.
Answer:
Similarities can be seen among related organisms, which shows common ancestry.
Explanation:
edg 2020
Similarities can be seen among related organisms, which shows common ancestry.
Common Ancestry
According to the theory of evolution, all living organisms are here as a result of descent, with modification from a common ancestor.
This means that organisms from the same ancestor will have some features in common, which could be morphological, anatomical, or biochemical.
Thus, the analogy is that of siblings having similar traits because they are from the same parent.
More on evolution can be found here: https://brainly.com/question/2725702
What effect would the enzyme have on the time to make 1 mg of product?
Answer:
The time to make the product will be reduced.
Explanation:
Enzymes are substances that acts as biological catalysts and speed up the rate at which a chemical reaction occurs by lowering the activation energy of the reaction. The activation energy is the energy required for the chemical reaction to occur.
Hence, when making a product of size 1mg, the presence of an ENZYME will reduce the amount of time required for the products to form i.e. the reaction will be sped up.
The effect the enzyme would have on the time to make 1 mg of product is reduction in the time to make the product.
First, let us define what enzymes are.
Enzymes are proteins that act as biological catalysts; and catalysts accelerate chemical reactions.
Simply put, enzymes make reactions go faster or we say enzymes speed up a chemical reaction.
Enzymes make reactions go faster by lowering the reaction's activation energy.
Activation energy is the minimum amount of energy that must be provided for compounds to result in a chemical reaction
Hence, since enzymes make reactions go faster, then the effect the enzyme would have on the time to make 1 mg of product is, reduction in the time to make the product.
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First gets brainliest!
Answer:
(F)
Explanation:
People have built canals and levees to divert water away from its natural flow and prevent floods in residential areas near the Florida Everglades. How have these changes affected the Everglades? О
О Some areas of the Everglades have dried up.
O The population of egrets has increased.
O Farm fertilizer no longer drains into the Everglades.
O Areas of wetland have been filled in for houses.
Answer:
Some areas of the Everglades have dried up.
Explanation:
These changes have caused some areas of the Everglades to have dried up. The everglades were known as the wetlands due to the massive flooding that occurred often but these canals made it so that water would not flow into some of the areas in the Wetlands. Therefore, since water never reached these areas they quickly began drying up and making the ground infertile due to the lack of water which the plants need to survive.
By which process does yeast produce the carbon dioxide responsible for bread rising?
o cellular respiration
O glycolysis
O dehydration synthesis
O photosynthesis
Answer:
The correct answer is - cellular respiration.
Explanation:
Bread rising is due to the production of carbon dioxide by yeast in both aerobic and anaerobic cellular respiration. If there is a presence of oxygen, yeast performs aerobic respiration and produce carbon dioxide from sugar or other sources of carbohydrates.
In absence of oxygen, yeast performs anaerobic respiration or undergo fermentation to produce carbon dioxide and alcohol as waste products.
Thus, the correct answer is - cellular respiration.
All of the following our characteristics of mammals except mammals are not
A. Endothermic
B. Exothermic
C. Vertebrates
D. Heterotrophs.
Answer:
D
Explanation: Because A, B, C don't really talk much about animals. They don't go with the characteristics of mammals.
HELP.......Which best describes a way photosynthesis provides resources to animals?
Answer: I think B.
Explanation: A and D make no sense, and I just learned about photosynthesis and animals or plants need for water cannot decrease.
Photosynthesis increase plant growth, providing places for many animals to live.
What is photosynthesis?Photosynthesis provides resources to animals indirectly, by serving as the source of energy and organic matter for plants. During photosynthesis, plants convert light energy into chemical energy stored in organic molecules like sugars.
These sugars and other organic compounds produced by photosynthesis are then used by plants as a source of energy and building materials. When animals consume plants or other organisms that have consumed plants, they obtain the energy and organic matter stored in these molecules, allowing them to use the resources generated by photosynthesis for their own growth and survival. Therefore, photosynthesis plays a critical role in the food chain and supports the entire ecosystem, including the survival of animals.
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Enrichment
Directions: Fill in the 12 steps in the decay of U-235 in the diagram below. Begin with U-235 and finish with an
isotope of lead. The particles emitted in each step are listed below. Use the periodic table to find information about
mass numbers, atomic numbers, and chemical symbols. Place the correct symbol in the space corresponding to the
correct mass number and atomic number.
Step
Particle emitted
235
1
Alpha
2
Beta
231
3
Alpha
227
4
Copyright Glencoe McGw-Hill, division of The Mcww.Him Companies,
Alpha
5
Beta
223
6
Alpha
Mass Number
219
7
Alpha
215
8
Alpha
9
Beta
211
10
Alpha
207
11
Beta
12
Stable
203
81 82 83 84 85 86 87 88 89 90 91 92 93
Atomic Number
1. What nucleus is the final product?
Answer:
See explanation and image attached
Explanation:
Decay series refers to the sequence of natural nuclear transformations that occur in the heavy radioactive elements giving rise to a series of elements with different half lives and ending up with a stable nucleus.
The uranium-235 series is pictured in the image attached to this answer as obtained from Wikipedia. All the 12 steps in the decay are shown.
You can use this detail to fill in the table showing all the particles and isotopes involved in the process until the process finishes with an isotope of lead.
Which particles are located
in the nucleus?
Answer:
[tex]\boxed {\boxed {\sf Protons \ and \ neutrons }}[/tex]
Explanation:
In an atom, there is a dense center known as the nucleus. It is made up of two subatomic particles: protons and neutrons. The protons have a positive charge and the neutrons have no charge, so overall the nucleus is positively charged.
The third subatomic particles, negatively charged electrons, are located around the nucleus in a cloud.
The particles in the nucleus are [tex]\tt protons \ and \ neutrons[/tex].
An incomplete diagram of the process of photosynthesis is provided. What is the missing component that correctly replaces the question mark to complete the diagram?
Answer:
water
Explanation:
glucose would come after this diagram is complete because photosynthesis converts the sun's energy into sugar.
What plan can you use to find out how a drought will affect a forest system?
Answer:
you can measure the amount of water the flora take in on a normal day and double that for a storm and subtract the deficit by the regular intake then give the plant life that amount of water for the rest of the drought
Explanation:
ldk just want to be helpful
Look at the digital below. (4 points)
Which statement is correct about Ray 1?
1) A part of it is reflected as Ray 2.
2) A part of it is reflected as Ray 3.
3) Some of it is absorbed as Ray 2.
4) Some of it is absorbed as a Ray 3.
Please hurry I need to pass this class! :)
Answer:
1 it is an reflective of of the water too ray 2
The simple model below is a neutral magnesium (Mg) atom with the element’s most common mass number.
A purple circle labeled M g sits at center with 3 concentric black lines around it. The inner line has 2 small green balls on it. The middle line has 8 small green balls on it. The outer line has 2 small green balls on it.
What must happen to an atom of magnesium in order to become a magnesium ion Mg+2?
Answer:
It must lose two electrons and become an ion.
Explanation: Hope this helps :)
Answer:
D. It must lose two electrons and become an ion.
Explanation:
A commercial classification system such as the one presented in this chapter shows us the ______ in which the grower will sell the product, rather than showing the plant’s biological relationships.
Fill in the blank
Answer:
i have the same question
Explanation:
Each statement explains a cause that would prevent a plant not to bear seed in its life cycle except:
The plant may be harvested before it bears any seed.
The plant will grow to full maturity and produce flowers instead.
The plant may die before it reaches maturity.
The mature plant could be affected by a drought preventing seeds from growing.
Answer:
B.The plant will grow to full maturity and produce flowers instead.