I NEED HELP PLZ!!!!!!

How many things do controlled experiments attempt to test at one time?

A. 1
B. 0
C. 2
D. 3

Answers

Answer 1

Answer:

lol

Explanation:

Answer 2

Answer:

2variables are tested at one time


Related Questions

The Golgi apparatus is an organelle that

O is involved in the distribution of proteins.

All of the above

receives proteins and lipids from the endoplasmic reticulum.

O packages molecules made in the endoplasmic reticulum.

Answers

Answer: all of the above

(A) True or (B) False: Two species of lizard with the same thermal niche could coexist in the same range.

Answers

False

Explaining: False

The statement "two species of lizard with the same thermal niche could coexist in the same range" is true.

What is species?

Species is the term that is used to classify different organisms. Species is the second last classification, which means most similar organisms are present in this classification. The traits are mostly similar in these organisms.

Two species of lizards are given the same thermal niche. So these lizards have similar characteristics of thermal niches. So these lizards can live in the same range because they can coexist. But in these organisms, there can be competition between them.

The statement can be true as it can coexist in the same range as they have a similar thermal niche. They can live in the same temperature.

Therefore, the statement is false.

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How are igneous rocks classified?

A. by cooling rate

B. by size

C. by weight

D. by texture and composition

Answers

D. Texture and Composition

Why do people with diabetes have a hard time keeping a balance blood-glucose level?.

Answers

Answer:

Due to insulin resistance, it is a bit hard for their body to naturally break down glucose(a form of sugar) like a normal body would.

Which of the following will best accelerate glycogen storage after physical activity? a. a high-fat meal taken within two hours of exercise completion b. a high-carbohydrate snack within two hours of exercise completion c. a high-protein snack taken midway through exercise and another 30 minutes after exercise

Answers

Glycogen storage after physical activity will be accelerated by taking a high carbohydrate snack within two hours of exercise.

What is Glycogen?

Glycogen is a polysaccharide that forms glucose after hydrolysis has taken place.

They exists as substance which are deposited in bodily tissues and serve as a store of carbohydrates.

When one consumes a high carbohydrate snack within 2 hours of exercise, muscle tissue which are spongelike will rapidly soak up glucose from the high-glycemic carbohydrates.

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Seven times a number minus the number is -48. Find the number

Answers

Answer:

the number should be -(8)

Explanation:

7x-(8) = -56 - 8 = -48

The reason I put it in the format that I did is because if you just put -8, that means that you would multiply 7 by -8 and then instead of subtracting -8 from -56 you would be adding it to -56 so your answer would be incorrect. so by putting the negative outside of the parenthesis that means that the number isn't always going to be negative.

This may be wrong but I hope it helps.

A protein region with a specific function and structure is called a.

Answers

Answer:

A protein region with a specific function and structure is called a. Select one: a. conserved site.

Select the correct location on the image. Keiko’s teacher was discussing the theory of endosymbiosis. She asked Keiko to mark the organelles in the diagram that most closely resembled prokaryotes. Which organelles should Keiko mark?.

Answers

Mitochondria in animal cells, while mitochondria and chloroplast in plant cells most closely resembled prokaryotes.

What do you mean by endosymbiotic theory?

This theory states that organelles such as mitochondria and chloroplast in eukaryotic cells were once prokaryotic microbes.

These organelles when occupied in prokaryotes divide by binary fission. But they become a part of the eukaryotic cell now and result in a symbiosis relationship between each other.

Therefore, Mitochondria in animal cells, while mitochondria and chloroplast in plant cells most closely resembled prokaryotes.

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Which statement describes an event that occurs during glycolysis that contributes to the production of ATP?
A. Pyruvic acid is broken down to form carbon dioxide.
B. Oxygen molecules are broken down and converted into pyruvic acid.
C. High-energy electrons and hydrogen ions are passed to NAD+ forming NADH.
D. Carbon atoms in glucose are transferred to ADP, forming ATP.

Answers

Answer:

C. High-energy electrons and hydrogen ions are passed to NAD+ forming NADH.

Explanation:

The sixth step in glycolysis is the first of the two-energy-conserving reactions of glycolysis which results in the formation of ATP. This step involves the oxidation of glyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate.

In the oxidation of glyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate, high-energy electrons and hydrogen ions are passed to NAD⁺ forming NADH.

Glyceraldehyde-3-phosphate + inorganic phosphate + NAD⁺ ---->  1,3-bisphosphoglycerate + NADH + H⁺

The NADH produced in this reaction transports the high-energy electrons passed to it through the electron transport chain to produce ATP in oxidative phosphorylation.

Scrapes are
in which the skin is rubbed or scraped away.
A. avulsions
B. lacerations
C. abrasions
D. cuts
SUBMIT

Answers

C or D I’d go with C

If you were to examine a sample of connective tissue cells from an adult bear and a second sample from ?
fetus (an unborn, growing offspring of a mammal) of the same species of bear, in which sample would yo
expect to find more cells undergoing mitosis? Why?

Answers

Answer:

that is a hard one let me ask someone I know 1 minute

Explanation:

What is cellular respiration? Simplified please. ​

Answers

Answer:

Cellular respiration is what cells do to break up sugars to get energy they can use.

Answer:

cellular respiration is the form in which plants obtain their ATP which is energy it occurs after photosynthesis

How do flowers attract pollinators

Answers

Answer:

Explanation:

Plants produce nectar to attract pollinators. As the pollinator moves from flower to flower collecting nectar, they are also moving pollen from flower to flower. Certain fruits and seeds will not be produced if their flowers are not pollinated.

Flowering plants need to get pollenDust-like grains that contain male sex cells (gametes) of flowering plants (angiosperms) and cone plants (gymnosperms). Pollen is made on the anthers of flowering plants. from one flower to another, either within a plant for self-pollination or between plants of the same species for cross-pollination to occur. However, pollen can’t move on its own, so animals or the wind (and water in rare cases) move the pollen for plants.

Which parts of the apple flower are related to pollination or meiosis?.

Answers

Answer:

the sepal

Explanation:

hope this helps!

Answer:

The part of an apple flower that produces cells by meiosis is the sepal. The sepal of the apple flower produces pollen, which contains male gametes

Explanation:


what goes in the two blanks

Answers

Answer: decomposition photosynthesis

Explanation:

Photosynthesis is the process by which producers convert energy from the Sun into chemical energy in the form of glucose. Explain why photosynthesis is so important for ecosystems.

Answers

Answer:

Some animals feed on plants which make their food through photosynthesis, and most animals feed on animals which feed on plants so, without photosynthesis most living things may go extinct. Right from ma brain

Explanation:

PLZ give a crown

Answer:

plants are called photosynthetic autotrophs...

WHY ARE THEY CALLED PHOTOSYNTHETIC...?!? because they convert light energy (i.e. sunlight) to chemical energy (i.e. glucose) this process is called photosynthesis. The Photosynthetic formula is  6CO2 + 6H2O ---> GLUCOSE + 6O2......

WHY ARE THEY CALLED AUTOTROPHS....?!? because they make their own food by using inorganic sources that is Water and Carbon dioxide. they are fully independant from other organism. So they do not feed on any other organism for survival hence they are found on the bottom of the energy pyramid so if they wouldn't convert light energy into chemical energy all the animals would be dead because we are not autotrophs we can not make our own food by using inorganic sources we need already made organic food thats why those organisms which can not make their own food are called heterotrophs

What is the smallest part of soil?

Answers

Answer:

Clay is the smallest particle out of soil.

Explanation:

Answer:

Clay

Explanation:

The smallest part of soil is the clay particles.


I hope it helps! Have a great day!

Muffin ^^

Fungi have an extremely high surface-to-volume ratio. What is the advantage of this characteristic to an organism that gets most of its nutrition through absorption?.

Answers

Answer: The larger surface area allows for more material to be transported through the cell membrane.

Once alcohol is in the bloodstream it will reach the brain in:.

Answers

Answer:

30 minutes

Explanation:

I hope its right

it can reach the brain in one minute 20% of alcohol passes through your stomach to the brain

if a cell needs 180 molecules of ATP to perform a function within the cell,home many molecules of glucose and oxygen will be needed. Include in your answer the equation for cellular resperation and how its used to calculate the answer

Answers

Answer:

Fill in the word that completes each sentence.

Food contains a sugar called

glucose

which is broken down in a process called cellular

respiration.

This process uses

oxygen

Explanation:

The equation for cellular respiration is:

Glucose + Oxygen → Carbon Dioxide + Water + Energy (ATP)

What is cellular respiration?

Cellular respiration is the process by which cells convert the energy stored in food molecules into a form that can be used by the cell, called adenosine triphosphate (ATP). This process occurs in the mitochondria of eukaryotic cells, and in the cytoplasm of prokaryotic cells.

To calculate how many molecules of glucose and oxygen will be needed to produce 180 molecules of ATP, we can use the ratio of ATP produced per molecule of glucose and oxygen consumed.

The standard ratio of ATP produced per molecule of glucose is 36 ATP per molecule of glucose. Therefore, to produce 180 molecules of ATP, the cell would need to consume 5 molecules of glucose.

The standard ratio of ATP produced per molecule of oxygen is 4 ATP per molecule of oxygen. Therefore, to produce 180 molecules of ATP, the cell would need to consume 45 molecules of oxygen.

So, the cell would need 5 molecules of glucose and 45 molecules of oxygen to produce 180 molecules of ATP through cellular respiration.

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what has the scientific name: Rania onca

Answers

Answer:

rania once

Explanation:

I'm really not sure tbh

En una sinapsis química, cuando pasa un impulso nervioso entre una neurona y otra, la membrana de la neurona postsináptica: I. Es permeable al ión sodio Na+. II. Se hace más permeable al ión cloro Cl-. III. Aumenta la permeabilidad al ión potasio K+. Es (son) correcta (s):

Answers

ohh sorry, I don't understand it...

How does carbon dioxide concentration affect photosynthesis rate?

Answers

Increasing the concentration of carbon dioxide increases the rate of photosynthesis, as there is a greater supply of it that can be used. Of course, you can only add so much carbon dioxide before the plant can’t perform photosynthesis at an any faster rate. Increased carbon dioxide concentration will increase the rate of photosynthesis until it is no longer the limiting factor in the reaction.

Answer:

An increase in the carbon dioxide concentration increases the rate at which carbon is incorporated into carbohydrate in the light-independent reaction - and so the rate of photosynthesis generally increases until limited by another factor.

Explanation:

CO2 concentration is directly proportional to rate of photosynthesis.

CO2 is raw material for process of photosynthesis.

CO2 + H2O → C6H12O6 + O2

Increase in CO2 concentration increases rate of photosynthesis.

Decrease in CO2 concentration decreases rate of photosynthesis.

Therefore, CO2 concentration is limiting factor for rate of photosynthesis.

Mrs. Gray's class has built an electrical circuit. They need to complete the circuit by adding an object that will allow electricity to flow through it easily. One student suggests that they use rubber.

Will the student's suggestion work?
A.
Yes. Rubber is a conductor.
B.
Yes. Rubber is an insulator.
C.
No. Rubber is an insulator.
D.
No. Rubber is a conductor.

Answers

not gone lie the answer is c i was joking don’t listen to me but naw frl it’s C i jus took this test

What observations and evidence support the theory of evolution?.

Answers

Answer:

direct observation, the existence of homologies and fossils, and certain biogeographical patterns.

Explanation:

Fossils:
These provide solid evidence that organisms from the past are not the same as those found today, and fossils show a progression of evolution. Scientists determine the age of fossils and categorize them from all over the world to determine when the organisms lived relative to each other. The resulting fossil record tells the story of the past and shows the evolution of form over millions of years.

Molecular Biology:
Like anatomical structures, the structures of the molecules of life reflect descent with modification. Evidence of a common ancestor for all of life is reflected in the universality of DNA as the genetic material and in the near universality of the genetic code and the machinery of DNA replication and expression. Fundamental divisions in life between the three domains are reflected in major structural differences in otherwise conservative structures such as the components of ribosomes and the structures of membranes. In general, the relatedness of groups of organisms is reflected in the similarity of their DNA sequences—exactly the pattern that would be expected from descent and diversification from a common ancestor.

What do eukaryotes hate that prokaryotes do not have? Select all that apply

A. Ribosomes
B. Nucleus
C. DNA
D. Cell membrane
E. Cytoplasm
F. Membrane-bound organelles

Answers

Answer:

F. Membrane-bound organelles

Explanation:

Prokaryotic cells lack a nucleus and membrane-bound structures. Eukaryotic cells have a nucleus and membrane-bound structures called organelles.

Place the four stages of the thylakoid reactions in the correct order starting with the first stage at the top.
Instructions
Choice 1 of 4. Chemiosmosis toggle button Chemiosmosis
Choice 2 of 4. Primary photoevent toggle button Primary photoevent
Choice 3 of 4. Electron transport toggle button Electron transport
Choice 4 of 4. Charge separation toggle button Charge separation

Answers

Excitation of photosystems by light energy, Production of ATP via an electron transport chain and reduction of NADP+ and the photolysis of water are the correct order of thylakoid reaction.

What are the three stages of thylakoid reaction?

These reactions occur within specialized membrane discs within the chloroplast called thylakoids. It consists of three steps.

Excitation of photosystems by light energy. Production of ATP through an electron transport chain. Reduction of NADP+ and the photolysis of water.

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All of the following is true of GMOs EXCEPT

A. They have increased food production
B. Only animals are modified genetically
C. They can increase resistance to disease
D. Many are concerned that the full impact of GMOs on people is not known

Answers

B. Crops are modified genetically as well

Only animals being modified genetically is not true of GMOs. Genetically

modified organisms(GMOs) usually undergo some changes to their DNA in

order to infuse beneficial trait such as size and taste, resistance to diseases

etc.

The infused trait through DNA alteration helps to increase the quality and

yield of crops thereby making them readily available for the population.

Plants and animals undergo this process and isn't restricted to animals

which makes option B the right choice.

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what is photosynthesis​

Answers

Answer:

plants make food with the help of sunlight, water n air is called photosynthesis

Explanation:

Answer:

It is simply a vital process that plants perform to produce oxygen and take in carbon dioxide

This macromolecule is composed of carbon, hydrogen and oxygen but is not a lipid

Answers

Answer:

yah

Explanation:

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