Which best defines homeostasis? modifying the external environment maintaining a stable internal environment controlling what enters and exits the cell movement of materials into the cell

Answers

Answer 1

Answer:

B. maintaining a stable internal environment

Explanation:

Took the test :)

Answer 2

Answer: yes its B

Explanation:


Related Questions

Mosquito repellent is sprayed on one arm and the other one is not sprayed. the number of mosquito bites is counted after 2 hours. what is the dependent variable and independent variable?

Answers

Answer:

who will answer this

Explanation:

Which of the following is the independent variable for the previous
experiment?
scores on the test
the classical music
the classroom
the students taking the test

Answers

The classical music is the independent variable

Glucose is a building block of carbohydrates. Which of these best describes glucose?
A. nucleotide
B. protein
C. monosaccharide
D. lipid

Answers

Answer:

monosaccharide

Explanation:

Glucose is called a simple sugar or a monosaccharide because it is one of the smallest units which has the characteristics of this class of carbohydrates.

Glucose is the simplest monosaccharide which cannot be broken down further. Thus, option C is correct.

What is Glucose?

Glucose is the primary component of carbohydrates. Glucose is a monomer made up of carbon, hydrogen and oxygen. Molecular formula of glucose is C6H12O6.

The functional group in glucose is an aldehyde present at the first carbon atom.

Glucose is called monosaccharides because it cannot be hydrolysed further. It is the simplest carbohydrate also referred as simple sugars.

Glucose molecules are chiefly linked together forming a glycosidic bond by removal of water molecule and form a disaccharide.  

Glucose is chiefly produced by plants during the process called photosynthesis.

Glucose is the key component in metabolism. It provides energy to the body cells to carry out physiological activities. Glucose is found in blood.

Excess of glucose in the blood results in a medical condition called diabetes. It can be life threatening if not managed on time.

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what acid fermentation regenerates NAD+ with lactic acid

Answers

Answer:

actic acid fermentation

Explanation:

what is a living factor ?

Answers

Answer:

A factor of something that all living matter has

Explanation: like we have organs and lungs and a pancreas whiles rocks dont

You are in an area near the shore of a pond with many grasses and no trees. You are in a ____________________.
a.
tundra
c.
forest
b.
marsh
d.
savanna

Answers

i believe it is marsh

Answer:

marsh

Explanation:

Differentiate between Carnivores and herbivores animals ? Give 2 examples.

Answers

carnivors eat meat herbivores eat plants and herbivores have smaller teeth because they don't chew meat

Answer:

carnivores eat only meat and herbivores only greens meaning grass, tress, lettuce, etc

Explanation:

An adult panda bear must eat at least 30 pounds of bamboo in a day. There are 12 adult pandas living in part of a
bamboo forest.
How many pounds of bamboo, at minimum, must be available each day in order to support the population of
pandas?
12
30
348
360

Answers

Answer: (D) 360

Explanation:

An adult panda bear must eat at least 30 pounds of bamboo in a day. There are 12 adult pandas living in part of a bamboo forest 360 pounds must available each day.

Why does panda only eat bamboo?

Panda comes under the specialist because its eats only bamboo because it's present abundantly and Thus they don't have to fight with other animals to get it.

Bamboo is rich in fibre but has less nutrients, so pandas have to eat 20 to 40 pounds of the elements every day just to get by.

Thus, option "D" is correct, 360.

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What would happen to a plant cell if it placed in water?

Answers

Answer: It really depends on if the water solution is hypotonic, hypertonic, or isotonic. If it is hypotonic (water with less salt or other dissolvent in it than the cell), you can expect the cell to take in water and expand. If the water is isotonic (about the same amount of dissolvent in it as the cell) just about nothing will happen, or if the water is hypertonic (more dissolvent in the water than the cell) the water can seep out of the cell, and into the water.

Spontaneous generation is

Answers

Answer:

Explanation:Spontaneous generation is a body of thought on the ordinary formation of living organisms without descent from similar organisms. The theory of spontaneous generation held that living creatures could arise from nonliving matter and that such processes were commonplace and regular.

:What do we need to figure out next to explain what essential elements are found in
large molecules?

Answers

Answer:

sorry I don't have this answer

What term best describes region “B” of the phospholipid model above?

Answers

Answer:

Hydrophobic

Explanation: The phospholipid has a chagred head (Phosphate region) and hydrophobic tails. Lipids are usually nonpolar and hydrophobic. That is why the tails are oriented towards the interior of the membrane.

The two parts 3 and 4 in the region B of the phospholipid model are 3- saturated fatty acids and 4- unsaturated fatty acids.

What is phospholipid model ?

Phospholipids are a class of lipids having significant role in the construction of cell membranes. It is composed of a hydrophilic head with a phosphate group and a hydrophobic tail with fatty acids end.

The fatty acids present in the phospholipid bilayer , are of two types, Saturated and unsaturated. Fatty acids chains without any double bonds or triple bonds are called saturated fatty acid.

Whereas, fatty acid chain with double bonds or triple bond are called unsaturated fatty acids. These two fatty acids chain creates the hydrophobic tail of the phospholipid bilayer.

Hence the region marked as B is saturated and unsaturated fatty acids.

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HELP!

A researcher observes the enzymatic polymerization of an organic molecule in a cell. Which enzyme is
MOST likely responsible for catalyzing the reaction?
A. a protein
O B. a nucleic acid
O C. a lipid
D. a carbohydrate

Answers

Answer:

A. a protein

Explanation:

Proteins function as enzymes in most of the catalyzing reactions, that increases the rate of reaction within cell.

Proteins are consist of multiple numbers of amino acids and the twisting and folding amino acids provide a unique identity to enzymes. Not all the proteins are enzymes but all the enzymes are proteins.

For example: Trypsin, Pepsin, and Lipases.

Hence, the correct option is "A. a protein".

What particle(s) are found in the center of the atom?

Answers

Protons and neutrons are in the center

Answer: Protons and Nuetrons are heavier then Electrons

Explanation: Protons, Nuetrons, and Electrons are the three main particles in a atom

In your own words, recognize that theories do not become laws and laws
do not become theories.

Answers

They are both separate things and if they collide it creates problems

Which would most likely interact with an open flame and cause an accident
A-Covered shoes
B-Contact lenses
C-Goggles
D-Loose hair?

Answers

Answer:

D, loose hair.

Explanation:

If your hair is long enough, it could easily drift into the flame and catch on fire.

Answer:

D. Loose hair

Explanation:

Loose hair would be the most likely to cause an accident with an open flame.

Especially if the hair is long, it can dip down into the flame and catch on fire.

The other objects would not be interacting with the flame because they would be far away, while loose hair can reach into the area where the flame is.

How are plant and animal cells similar?

Answers

Answer:

both are eukaryotic cells

Answer:

they both are eukaryotic cells

they both contain membrane-bound organelles

both have mitochondria, vacuoles, cytoplasm, ribosomes, endoplasmic reticulum, and Golgi apparatus

Science is open to change.
O True
O False​

Answers

False not unless it has went under many experiment to be proven else how

This is true in most cases. More is found about a topic, then what is known can change depending on what information can be found.

What facts did you use to predict the pH values of the solution?

Answers

To predict the Ph values of the solutions I thought about what I knew about each solution. Battery acid and stomach acid have the words acid in them, so I knew they would be on the acidic side of the scale. yeah

What causes an earthquake?


hard collisions between tectonic plates


buildup of pressure between tectonic plates


buildup of magma


extreme rock deformation

Answers

Answer: ( B. ) build up of pressure between tectonic plates

Explanation:

Explore the following website:Save The Pacific Northwest Tree Octopus What have the authors done to make the site look valid? What indications are there that the Pacific Northwest Tree Octopus is not real? Give three examples for each answer.

Answers

Answer:

They tried to make it look credible by listing the author and contacts and stuff but do not have any official sources. They are photo edited pictures from other people.

Explanation:

i added pictures from the web site and made note of added tiny details.

help for brainliest..........

Answers

I believe it is 137 kg. (the third one down)

___ is the only continent not to experience tornadoes. Africa Antarctica America

Answers

antartica i think sorry if i’m wrong
Antarctica is the only continent not to experience tornadoes

Which of the following is an example of a detritus food chain?
A. Graas, Insects, Snakes.
B. Plankton, Large fish, small fish.
C. Organic matter, Bacteria, Molluscs.
D. All of the above.

Answers

Explanation:

Detritus food chain is the type of food chain that starts with dead organic materials. The dead organic substances are decomposed by microorganisms. The organisms that feed on dead organic matter or detritus, are known as detritivores or decomposers. These detritivores are later eaten by predators.

2. Four students raced toy cars on a track. The mass and the acceleration of each car is
recorded in the table below.
Toy Cars
Toy Car
Mass (kg)
Acceleration (m/s)
1
0.19
0.15
2
2.0
3.0
1.5
3
0.25
0.21
4
2.5
Which toy car had the greatest applied force?
A 1
B 2.
с 3
D4

Answers

Answer:

the answer is 4

Explanation:

i dont know how to explain it but i took the test and it was right.

The car with the greatest applied force is : ( D ) Car 4

Given that :

Force applied is calculated as : Mass * acceleration

Calculating the force applied on each car

For Toy car 1

mass = 0.19

acceleration = 0.15

Force = 0.19 * 0.15 = 0.0285 N

For Toy car 2

mass = 2.0

acceleration = 1.5

Force = 2 * 1.5 = 3 N

For Toy car 3

mass = 0.25

acceleration = 0.21

Force = 0.25 * 0.21 = 0.0525 N

For Toy car 4

mass = 2.5

acceleration = 3

Force = 2.5 * 3 = 7.5 N

From the answers above the car with the greatest applied force is car 4 with a force of 7.5 N

Hence we can conclude that The car with the greatest applied force is : ( D ) Car 4

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NEED HELP DUE TODAY PLZ HELP ME I AM STUCK PLZ PLZ PLZ HELP ME!!!!

What three parts make up the modern cell theory?

Choose 3 answers:

(Choice A)
A
Cells can only come from other cells.

(Choice B)
B
Cells arise spontaneously.

(Choice C)
C
The cell is the building block of all living things.

(Choice D)
D
All organisms are made of one or more cells.

Answers

Answer:

d

Explanation:

all organisms are made of one or more cell

Question one - C

Question two - D

Question three - A

In science class, Maria observes a white-colored cut flower. She sees that the petals turn red when the flower is sitting in a vase that has
red-colored water.
She forms a hypothesis that the color reaches the flower through the stem. What should Maria do to confirm the hypothesis?
A. She should repeat the experiment with the same type of flower and photograph the changes over time.
B. She should ask her science teacher about the flower to confirm whether her hypothesis is correct.
C
She should try the experiment with a potted plant with roots and observe any color changes.
D
She should repeat the experiment with a different species of plant and photograph the changes.

Answers

Answer:

D

Explanation:

Its d I think tell me if it's wrong If it is I'm sorry

Answer:

A.

She should repeat the experiment with the same type of flower and photograph the changes over

Explanation:

Adult giraffes eat about 75 pounds of food in a day. On average, an area can provide 450 pounds of food per day for giraffes.

Based on this information only, what is the carrying capacity for adult giraffes in this area?

6
75
375
450

Answers

Answer: the carrying capacity for adult giraffes in this area is: 6.

Explanation: [ 450 pounds divided by 75 = 6. ]

Fun Fact - Giraffes can drink up to 10 gallons of water a day and spend 16-20 hours a day feeding, their favorite food is Acacia Leaves.

Adult giraffes eat 75 pounds of food in a day. On average, an area can provide 450 pounds of food per day for giraffes.

The carrying capacity for adult giraffes in this area are 6.

How the carrying capacity for giraffes in given area is determined?

Adult giraffes eat = 75 pounds of food per dayArea provides = 450 pounds food per day

so, carrying capacity for giraffes in the area equals,

 food provided by are per day\ food eater by giraffes in a day

=450\75

= 6.

Hereby, carrying capacity of giraffes in this area is measured.

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Info
What step of the scientific method comes after forming
question?
a

Answers

After forming a question in the scientific method making a hypothesis comes next

Answer: making hypothesis

Identify the independent variable by highlighting it red. Identify the dependent variable by highlighting it yellow. 1. If I increase the temperature of the seeds, then germination will increase,​

Answers

Answer:

Independent variable: temperature ; Dependent variable: germination

Explanation:

The independent variable is what is being changed in an experiment. The dependent variable is what you are measuring in an experiment.

When the independent variable is changed (in this case, temperature), it effects the dependent variable (germination).

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Natalie wants to rent a car for the day. She only has $48 total to spend. There is a flat fee (one-time fee) of $26 for the day. In addition to the flat fee, there is a charge of $0.75 per mile. How many miles can Natalie drive? Please Help!!! Time LImit. Extra Points and Brainiest. Acids are a group of molecules with similar physical and chemical properties. Acids react with metal, but vegetable oil does not. What can you infer from this observation? Choose the two statements that apply. A. The combination of atoms in acids and oil result in very different properties. B. Acids and oil have different properties because they have different shapes. C. The atoms present in molecules affect their properties. D. Vegetable oil is most likely some type of acid. HELP I WILL GIVE BRAINLIEST I NEED ANSWER ASAP!!!Mr. Green wants to know how far he can run. He knows he can run 103,000 mm. How many miles can he run? Show all work if you want to receive credit.I know the answer is 0.064 miles but I need the work!! help please A race car accelerates from 0 m/s to 20.0 m/s with a displacement of 35.0 m. What is the vehicle's acceleration? a 5.7 m/s2 b .84 m/s2 c 6.1 m/s2 d .29 m/s2 [tex]2 + \frac{60}{( - 3)} - 5( - 2)[/tex]Simplify please I would like to be in a production of my favorite musical and I want to be the main character.A. Insert a comma after favorite.B. Insert a comma after musical.C. Insert commas after andD. No change needed.How should this sentence be changed WILL MARK BRAINLIEST 7. When the numbers 5.56 x 10^2 and 3.81 x 10^3 are added the result is:a) 4.36 x 10^3b) 4.366 x 10^3c) 4.366 x 10^2d) 4.37 x 10^3 An _______ is an activity to get you thinking about your project including your role, the challenge and objectives. Question 4 options: obstacle course benchmark hour nap entry event active or passive voice? it took her two hour to respond to all of the emails in her inbox? if it is passive what would the new sentence be? Micheal wants to test the effect of stomach acid concentration on the solubility of a particular oral medication. Which experiment design setup would best help him answer his question? Which action is taken by a player on offense in a game of lacrosse Attacking the opponents goal Throwing the ball out of bounds Protecting the goal Guarding an opponent 9) Change each of the following adjectives into an adverb by adding an appropriateending.solemnWhat do I add to the ending like the question asked? What is the purpose of the Electoral College? A. to help choose Senators B. to help choose Supreme Court justices C. to help choose the Speaker of the House D. to help choose the President What is the ultimate source of energy for an ecosystem? The perimeter of a rectangular movie screen at a local cinema is 148 feet. If the length of the screen is 30 feet longer than the width, what is the length of the screen, in feet? What are the effects of the earths tilt, rotation, and revolution? Which planet is closest in size to Jupiter? (PLEASE SOLVE) The position of a particle is r (t)=(3.0t2i+5.0j6.0tk)m. (a) Determine its velocity and acceleration as functions of time. (b) What are its velocity and acceleration at time t = 0? The purpose of a government in an indirect democracy includesall of the following, EXCEPTAto make money from government-owned businessesBto make rules and enforce behaviorto allow citizens a say in how they are governedDto protect the rights of individuals a suit is being sold at a 20 % off (discount). The sale price is $ 270. What was the original price ?