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3 years ago

What is an independent variable?

Biology

2 answers:

Artemon [7]3 years ago

8 0

It is the variable that you have control over and that doesn't have to depend on another variable.

Alexus [3.1K]3 years ago

4 0

The independent variable is the variable that you change and control in your experiment. The dependent variable is the one you don't have control over and is affected by how the independent variable reacts.

For Example:
Let's say you're doing an experiment seeing how different sugars affect the density of cupcakes. The type of sugar you add would be the independent variable, because you are choosing it. The density would be the dependent variable, since it depends on the sugar used.

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What is the big bang theory, explain it in theory

KIM [24]

Explanation:

The Big Bang Theory is the leading explanation about how the universe began. At its simplest, it says the universe as we know it started with a small singularity, then inflated over the next 13.8 billion years to the cosmos that we know today

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3 years ago

ATP synthase is an enzyme that helps convert ADP into ATP. Highly active ATP synthase in muscle cells directly increases which o

murzikaleks [220]

Answer: pretty sure it’s the number of mitochondria in muscle cells

Explanation:

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3 years ago

In some instances, the levels of LDL cholesterol exceed the ability of the body to maintain homeostasis, and as a result, the ex

Luba_88 [7]

Answer:

The correct order is 3, 4, 2 and 1.

Explanation:

Atherosclerosis refers to the condition in which the plaque gets accumulate within the blood vessels' walls. In the condition, inflammation occurs in the arteries' inner lining. The following is the sequence of events that results in atherosclerosis is:

1. A huge concentration of LDL cholesterol gets gathered within the inner walls of the arteries.

2. This causes discharging of macrophages to the site.

3. The engorgement of WBCs takes place with fatty deposits.

4. The hardening of plaques takes place, which eventually prevents the flow of blood in the prime arteries.

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3 years ago

A scientist is studying the effect of nitrates, a group of chemicals, on the aquatic environment and the organisms that live wit

hoa [83]

Answer:

A scientist who studies water and its properties is a hydrologist.

Explanation:

A hydrologist is a scientist linked to the study of water, both surface and underground, detecting cleanliness or contamination and proposing alternatives for its cleaning and conservation.

A hydrologist's research on the properties of water, its location, distribution and circulation contributes to the maintenance of the environment.

The other options are not correct because:

A) Entomologist : a scientist who studies insects.

B) Chemist : a professional who studies the elements and chemical compounds and their properties.

D) Oceanographer : study both oceans and seas, and their relationship with the environment, the atmosphere and the land.

E) Toxicologist: study the effects of toxic or harmful substances on living beings and the environment.

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3 years ago

In photosynthesis_________ drives electrons from a low-energy state in water to a high-energy state

Darina [25.2K]

Answer:

In photosynthesis LIGHT ENERGY drives electrons from a low energy state in water to a high energy state.

Explanation:

Photosynthesis is the process used by plants, algae and cyanobacteria to utilize energy from sunlight and turn into chemical energy.

There are two types of this process: oxygenic photosynthesis and anoxygenic photosynthesis. The general principles of both of them is very similar, however oxygenic is the most regular to see in plants, algae and cyanobacteria.

The oxygenic photosynthesis begins when the light energy transfers electrons from water to carbon dioxide, so that carbohydrates can be produced. During this transfer, CO₂ is reduced or receive electrons and the water becomes oxidized, meaning, it loses electrons. The oxigen is produced along with carbohydrates.

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3 years ago