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3 years ago

In an experiment, the independent variable is the one that you:

Biology

2 answers:

slava [35]3 years ago

8 0

Answer:

First question: 2. Hold constant throughout the entire experiment

Second question: 2. One you change or manipulate. Everything depends on what you do to this variable.

Explanation:

boyakko [2]3 years ago

8 0

Answer:

Independent variable is that which we change or manipulate.

Explanation:

By changing the independent variable, there is a corresponding change in the dependant variable which we intend to measure.

Answer:

The dependant variable is the one you measure. The dependant variable depends on how you change the independent variable.

Explanation: For example we want to observe speed of a car change with respect to time.

Here, time is the independent variable as it has its own pace regardless of the car. However, at different instances of time , the car has different speeds. Thus, the speed of the car is the dependant variable as it depends on time.

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1.what did magnesium and oxygen atoms had to do to bond ?

devlian [24]

Answer:

1. Magnesium and oxygen atoms bond to form an ionic compound; this is evident because one forms a cation and the other an anion. When an ionic compound is formed, one atom "steals" an electron (or electrons) from another. In this case, an oxygen atom (which is pretty electronegative by the way) "steals" 2 electrons from a magnesium atom. The resulting oxygen anion and magnesium cation attract one another to form a bond (more specifically, an ionic one).

2. The oxygen atom needed two sodium atoms to bond because it needs two additional electrons to achieve a stable octet of electrons. 1 sodium atom provides 1 additional electron after it is "stolen" by oxygen, so 2 sodium atoms are needed in total to form the bond.

3. The magnesium atom needed two fluorine atoms to bond because it needs to lose two electrons to achieve a stable configuration/octet of electrons. 1 fluorine atom "steals" one electron, so 2 are needed in total.

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7 0

3 years ago

What are the chances that the offspring will have the red flower, green seed phenotype?

GrogVix [38]

Answer: 1/5

Explanation: Please see the attachment!

5 0

4 years ago

Unicellular organisms excrete waste by _____. osmosis diffusion active transport all of the above

Arturiano [62]

Answer:The answer is diffusion.

Explanation: Unicellular organisms excrete waste by diffusion.

Unicellular organisms are organisms that have only one cell. They are called single cell organisms because all their life processes such as reproduction, feeding, digestion, and excretion, occur in only one cell. An example of unicellular organism is paramecium.

Diffusion is the inactive movement of molecules from the region of higher concentration to the region of lower concentration.

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4 years ago

Read 2 more answers

Fill in the blanks to complete each statement about the age of Earth. According to scientific evidence, Earth is approximately 4

Dafna11 [192]

Answer:

where are the blanks???

4 0

3 years ago

Explain how the terms in each pair differ in meaning: vegetative part, fruit.

balu736 [363]

A true fruit is a ripened ovary that usually starts ripening when it is fertilized. And vegetable is any vegetative part of the plant which is edible and contains stored food probably in the form of starch.
These definitions are not exact as there are a lot of fruits which are fruits but do not strictly follow the given definition. See Syconus, Composite fruits, Sorosis.etc

Classification is based on several different criteria, for example the mode of reproduction, arrangement and design of flowering parts and flowers and also on the basis of habitat and habit.

8 0

3 years ago