True or False (Circle the correct answer choice) Scientists propose explanations that are testable

Answers

Answer 1

Answer:

True

Explanation:


Related Questions

Balance the given chemical equations:: H2 + O2 = H2O. Please answer

Answers

Answer:

H2o o2 h2o2 balanced equation

H2 + O2 = H2O - Chemical Equation Balancer.

Answer:

2H2+O2=2H2O

Explanation:

H2+O2=H2O

H2+O2=2H2O

2H2+O2=2H2O (here is the balanced chemical equestion)

What is the function of carbohydrates?
A. To release energy
B. To build cell structures.
C. To store information.
D. To protect organs.

Answers

A, to release energy
carbohydrates produce a spike in blood glucose, providing the body with a short-lasting source of energy so the answer is A

Explain what would happen to germination speeds if one seed was buried 10 cm deep into the soil, another seed
at 5 cm deep and another seed sitting on the top of the soil. Explain why. (2-3 complete sentences)
WILL GIVE BRAINLIEST TO BEST ONE

Answers

Answer:During germination rapid cell division takes place. Energy is required for cell division. This energy is obtained from oxidation. The oxygen required for oxidation is supplied by the air. So, air is necessary for seed germination. Seeds placed deep in the soil do not germinate because they are unable to get sufficient oxygen. So, the correct answer is 'Unable to get sufficient oxygen'.

identify what is being asked in each item.?

______1.this layer is made up of melted metals such as iron and nickel.
______2.the layer of the erath that is divided in two layers.
______3.it is the thickest layer of the earth.
______4.this layer of the earth is composed mainly of solid iron and nickel.
______6.it is the thinnest layer of the earth.​

Answers

Answer:

1. outer core

2. lithosphere

3.mantle

4. inner core

6. crust

Which substance is a compound?
water
gold
oxygen
hydrogen

Answers

Answer:

Water is a compound because it is made of two elements: Hydrogen and Oxygen. But water is totally different from Oxygen and Nitrogen.

Explanation:

Answer:

water

Explanation:

water is a combination of one oxygen atom and two hydrogen atoms.

The fluid-mosaic model of the cell membrane suggests that the membrane is primarily composed of proteins and lipids. Which of the following is a function of proteins in the cell membrane
A to read messenger RNA to assemble amino acids
B. to provide a hydrophilic head so that water can enter the cell
c. to package and sort molecules to be sent in vesicles
D to allow substances to cross the plasma membrane via active transport

Answers

Answer:

B

Explanation:

Protein as amino acids

The fluid Mosiac Model is a theory that explains the structure of the functional cell membranes. The model is characterized by the lipid bilayer, in which protein molecules are embedded.

The correct answer is:

Option B. to provide a hydrophilic head so that water can enter the cell

The functions of protein in the plasma membrane are:

1. The lipid bilayer is amphiphilic, such that they have a hydrophobic and a hydrophilic end.

2. Membrane proteins are involved in the transportation of ions, molecules, or other substances across the membrane.

3. The membrane protein is selectively permeable such that, the aquaporins are the family of proteins, which is involved in the flow of water inside and outside the cell.

Thus, the correct answer is Option B.

To know more about fluid mosaic model, refer to the following link:

all of the following are characteristics of prokaryotes except,

Answers

Answer:

pls the options to the question

Answer:

nuclei

Explanation:

48:47
Which of the following factors would have the smallest impact on a population’s size?
a.
the total number of organisms
b.
the available water supply
c.
the variety of organisms
d.
adequate shelter

Answers

I think the answer is c

what is Construction of beds and drains or ridges and furrows.​ due today pls help

Answers

Answer:

The  Construction of beds and drains or ridges and furrows is that ridge is (lb) the back of any animal; especially the upper or projecting part of the back of a quadruped while furrow is a trench cut in the soil, as when plowed in order to plant a crop.

Hope this helps :))

it is probably incorrect but i tried

Which of the following correctly matches an organelle and its functions?
Lysosome .... movement
O
Mitochindria..... photosynthesis
Central vacuole .... storage
Nucleus .... cellular respiration
O
Ribosomes ..... manufacturer of lipids

Answers

central vacuole is storage

A ________ has to survive challenges,adapt,and be able to explain new information and developments.
A)Scientific Law.
B)Scientific Theory.​

Answers

Answer:

b) scientific theory

Explanation:

An astronaut visits Mars and discovers and unknown alien body. The astronaut studies it to determine if it is living and notices the following things about it:

it is made of cells
it can reproduce
it does not grow or develop
it does not maintain homeostasis
it can adapt to its surroundings
it uses energy
Based on these observations, is this alien body living or not?



Question 1 options:

it is living because it met most of the characteristics of life


it can't be determined based on the accepted definition of life


it is non-living because it does not meet all the characteristics of life


it is living because it has all the characteristics of life

Answers

Answer:

Almost 100% sure its the third one its non living

Explanation:

What is NOT an example of a primary consumer?
co
A deer that eats mostly grass
b An osprey that eats mostly fish
C
A mouse that eats mostly seeds
d A squirrel that eats mostly acorns

Answers

Answer:

b An osprey that eats mostly fish

Explanation:

or a primary consumer is an animal that feeds on plants; a herbivore.

Which option illustrates where the youngest crust is formed?

Question 2 options:

A


B


C


None of them

Answers

The mid-oceanic ridges is a place located in the Atlantic ocean is know for the concept of seafloor spreading. New seafloor is being created on another side of the ridge.

The diagram or illustration represents the mid-Atlantic ridge which is the zone of upwelling of magma.  As the magma upwells it gets deposited on both sides. According to paleomagnetism the magma on both left and right sides leads to the creation of plate tectonics. Hence more close they form the more recent or younger rocks/plates as compared to those formed farther away near the continental mass.  

Thus the correct option is A.

Learn more about the illustrates where the youngest crust is formed.

brainly.com/question/1807609.

Which statement is true about prokaryotic cells?
A) Prokaryotic cells don't have a cell membrane
B) Prokaryotic cells don't have DNA
C) Prokaryotic cells don't have a nucleus
D) Prokaryotic cells can't reproduce without a host

Answers

the answer Isssss CC

The statement is true about prokaryotic cells - C) Prokaryotic cells don't have a nucleus

Prokaryotic cells

Cells come in various shapes and sizes. Based on the presence of a nucleus or membrane-bound organelles, cells are broadly classified as Prokaryotic cells or Eukaryotic cells.

Prokaryotic cells lack both, a well-defined nucleus and membrane-bound cell organelles. Examples of prokaryotes are blue-green algae, bacteria, and mycoplasma.

Learn more about Prokaryotic cells:

https://brainly.com/question/3898320

A block of lead has dimensions of 4.50 cm by 5.20 cm by 6.00 cm. The block weights 1587 g. From this information, calculate the density of lead.

Answers

Answer:

11.3 cm/g

Explanation:

A block of lead has dimensions of 4.50 cm by 5.20 cm by 6.00 cm. The block weighs 1587 g. From this information, calculate the density of lead. V = 4.50 x 5.20 X 600- ...
2 pages·418 KB

How environmental conditions influence modern history?
Plz it’s 7th grade science

Answers

Answer:

it helps future generations understand the impacts of humans and pollution on health.

Explanation:

Maltase would break down....
Proteins
Lipids
Sucrose
Maltose

Answers

Answer:

Maltase would breakdown Maltose..

All cells, whether prokaryotic or eukaryotic, will have a cell membrane.
True
False

Answers

Answer:

True

Explanation:

Both prokaryotic and eukaryotic cells have structures in common. All cells have a plasma membrane, ribosomes, cytoplasm, and DNA. The plasma membrane, or cell membrane, is the phospholipid layer that surrounds the cell and protects it from the outside environment

Answer:

True

Explanation:

Because yes.

what is four the terrestrial planets​

Answers

Mercury, Venus, Earth and Mars

Answer:

Explanation:

Terresterial comes from the greek work "terra", which means Earth. So when you hear the word "terresterial " think that it means "like Earth". More specifically, it means that a planet is SOLID, like the Earth is. So, to figure out the answer to your question, let's list the planets starting with the ones closest to the sun and work out way out toward deep space. We can also describe each planet a bit as we list them.

Mercury - Closest to the Sun and, because of that, its very hot here. A lot of the ground on this planet is lava made of molten metal which is a liquid BUT there is also solid ground so it is terresterial. ✓

Venus - 2nd closest to the Sun. There is ground here, so it's terresterial. ✓

Earth - 3rd closest to the sun. There is solid ground here too so... Terresterial ✓

Mars - Also Solid. Terresterial ✓

Jupiter - Jupiter is made of Gas. If you went there, there would be nothing solid to walk on, but instead simply pass through it like it was a cloud. Therefore it is NOT terresterial

Saturn - Also a "Gas Giant" plant. (They are called gas giants because these planets are huge! You could fit 764 planet Earths inside of Saturn and over 1300 Earths could fit inside Jupiter!) Gas = NOT terresterial

Uranus - Another Gas Giant. Not terresterial

Neptune - The last of the gas giant planets and the furthest from the Sun. Again, its made of gas so its... not terresterial!

If you have trouble remembering the order, try memorizing this:

   "My   -   Very  -  Epic - Mother - Just  -  Served  -   Us   -   Nachos"

Mercury - Venus - Earth - Mars - Jupiter - Saturn - Uranus - Neptune

Let me know if you need any more help! I am a scientist at NASA and my research focuses on all the planets you're currently learning about! Im happy to help out where I can.

What are the two inputs for aerobic cellular respiration?

a. oxygen and glucose
b. carbon dioxide and atp
c. carbon dioxide and water
d. glucose, atp and water

Answers

A is your answer and Hey

Oxygen and glucose are the two inputs for aerobic respiration.

What are Cellular respiration?

The process of cellular respiration involves the oxidation of biological fuels in the presence of an inorganic electron acceptor, like as oxygen, to generate significant amounts of energy that are used to power the major creation of ATP.

The process of converting chemical energy from foods into adenosine triphosphate (ATP) in an organism's cells, followed by the discharge of waste products, is known as cellular respiration. 

During catabolic reactions, which divide big molecules into smaller ones and release energy, respiration takes place. One of the main mechanisms through which a cell releases chemical energy to power cellular activity is respiration.

Therefore, Oxygen and glucose are the two inputs for aerobic respiration.

To learn more about Cellular respiration, refer to the link:

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What is a gene and why are they important?

Answers

Answer: A gene is a basic unit of heredity in a living organism. Genes come from our parents. We may inherit our physical traits and the likelihood of getting certain diseases and conditions from a parent. Genes contain the data needed to build and maintain cells and pass genetic information to offspring.

Explanation: Its the answer.

Explanation:

genes are basic units of inheritance which occupy specific positions in chromosomes.

genes determine the specific characters of an organism

Which molecule is formed when the protein ferrodoxin transfers electrons to an electron carrier?

Answers

Answer:

NADPH, it from the energy storage molecule

Hope this helps

Answer: NADPH

Explanation:

woof

Which of the following are needed by all living things? water, oxygen, food water, nutrients, energy source rain, nutrients, sunlight water, oxygen, energy source

Answers

Answer:

A.

Explanation:

Answer:

A

Explanation:

The diagram shows molecules that a mitochondrion and produces during a cellular process. Which other molecules is a product of this process?

A. DNA
B. RNA
C. C6H1206 (glucose)
D. ATP

Answers

Answer:D

Explanation: DNA and RNA are held in the nucleus and have nothing to do with what is shown in the image which is the process of cellular respiration. What is fascinating is that the mitochondrion has its own DNA but it does not produce it in a cellular process. C is false because the mitochondrion takes in glucose so it will go alongside the pyruvate O2. So we can conclude that it produces ATP with H2O and CO2 during this process.

ATP molecule is also a product of the cellular process that occurs in the mitochondria.

MITOCHONDRIA:

The mitochondrion is a membrane bound organelle found in eukaryotic cells. The mitochondrion is regarded as the power house of a cell because it is the site of the cellular process that synthesizes energy for the cell.

The cellular process that occurs in the mitochondria is called cellular respiration. Generally, cellular respiration breaks down glucose molecule in the presence of oxygen. The chemical equation is as follows:

C6H12O6 (glucose) + 6O2 (oxygen) → 6CO2 (carbon dioxide) + 6H2O (water) + ATP (energy)

From the attached image, it can be seen that water (H20) and carbon dioxide (CO2) are products. However, ATP molecules is also synthesized during this cellular process.

Therefore, ATP molecule is also a product of the cellular process that occurs in the mitochondria.

Learn more: https://brainly.com/question/23126016?referrer=searchResults

1. What is the difference between MODERN classification hierarchy and Linnaen
classification hierarchy?

Answers

heyyyy so the answer is the person above me

After a cell was treated with a certain chemical, its Golgi apparatus stopped functioning. Which cellular process was immediately affected by this change?

Answers

Answer:

Sorting and packaging of proteins

Explanation:

The golgi appartues is in charge of Sorting and packaging of proteins so if it would to stop the protenis wouldn't be packged

EMERGENCY! PLEASE ANSWER ASAP! ​

Answers

Answer:

they suck up liquid

Explanation:

they drink the other bugs blood (cool huh)

Plants are able to produce energy from sunlight through photosynthesis. How do the products of photosynthesis in plants benefit animals, who cannot produce energy from sunlight?

Answers

Answer:

They produce sugars in order to survive and grow. Animals eat plants and take advantage of the nutrients produced by the plants. They also breathe in the oxygen produced as a by-product of photosynthesis

Explanation:

Plants use the energy in sunlight, water, and carbon dioxide to produce sugars which are used to provide chemical energy to power cellular processes. These sugars are also stored as starches.

Animals cannot produce their own food, and instead, rely on plants and other animals as a food source to power their own processes. Animals eat plants and obtain the food that plants have produced by photosynthesis. This is mostly carbohydrates (sugars and starch) but also some fats, proteins, and vitamins.

Which of the following is NOT a form of active transport?
A) cyclosis
B) phagocytosis
C) diffusion
D) pinocytosis

Answers

Answer:

B) phagocytosis.

Explanation:

Phagocytosis is a process in which a cell attaches to the element it wishes to enclose on the exterior of the cell and attracts the item within as it encloses it. Phagocytosis is commonly done when the cell, such as a virus or an infected cell, is attempted to destroy things and often is employed by immune cells.

This is quite particular and dependent on the cell being able to bind to an article it wishes to ingest via cell surface receivers.

Phagocytoses differs from other techniques of endocytism. Unless the cell comes in direct contact with the particle it wishes to ingest, Phagocytosis will not occur.

Diffusion is a type of passive transport. It occurs when molecules transfer passively from high concentration to low concentration zones. So, option c is right.

Active transport involves using energy to move molecules across a membrane against a concentration gradient.

Pinocytosis and phagocytosis are both types of endocytosis. Cytosis is the movement of cytoplasm within a cell. Both are examples of active transport since they both require energy.

Diffusion is the passive movement of molecules from a region of high concentration to a region of low concentration across a cell membrane. It's an example of passive transport not active transport.

Therefore, Diffusion is the only option that is not an active transport mechanism. Thus, option C is correct.

Learn more about active transport here;

https://brainly.com/question/29759743

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