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Hoochie [10]
3 years ago
12

How did cyanobacteria change life on earth

Chemistry
1 answer:
posledela3 years ago
6 0
Cyanobacteria are photosynthetic. They convert sunlight into energy and produce oxygen as a waste product. Back then, the Earth's atmosphere didn't have free oxygen in it as it does today. ... The cyanobacteria changed that.
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9. What type of wave vibrates parallel to the direction of travel
Finger [1]

Answer:

The highest point on a wave is the Crest_, while the lowest point is the Trough Get a ruler and measure the wavelength and amplitude of the above wave.  (a) Waves P and Q have the same frequency, but wave P has twice the  What type of wave is produced when you move one end of a horizontal spring up

Explanation:

5 0
3 years ago
What does it mean Emphasis on object vs woman
GenaCL600 [577]

Emphasis on object vs woman simply means <u>s</u><u>-</u><u> </u><u>e-</u><u> </u><u>x</u><u>-</u><u> </u><u>ual</u><u> objectification</u>

This goes to say that it emphasizes seeing women as objects of se- xu- al pleasure

<h3>What is objectification?</h3>

Objectification simply refers to the act of treating or viewing a person as an object, devoid of thought or feeling.

Most of the time, objectification is targeted at women and reduces them to objects of se- xu- al pleasure

So therefore, emphasis on object vs woman simply means se- xu- al objectification

Learn more about se- xu- al objectification:

brainly.com/question/4231708

#SPJ1

6 0
2 years ago
A solution in which 50 grams of solute is dissolved in 250 grams of solution has a concentration of blank percent.
Stella [2.4K]

Answer:

20%

Explanation:

w=(solute)/(solution)

w = 50g/250g = 0.2

6 0
4 years ago
Which of these molecules is an important source of ENERGY for most organisms?
Nitella [24]

Answer:

Glucose

Explanation:

Glucose molecule is the primary source of energy for most organisms where processes such as glycolysis starts and cellular respiration follows. Bodies of organisms can get energy from carbohydrates, proteins and fats with carbohydrates being the main component for energy where they are converted to glucose which is a form of sugar that reacts to affect blood sugar levels within an hour or two hours after eating.

The second answer option, table salt (NaCl) is incorrect because sodium added in food is vital for functioning of nerves and muscles. Additionally, it helps in fluid regulation and control of blood pressure/volume in the body.

The third answer , hydrochloric acid is not correct because presence of hydrochloric acid in the body helps in breaking down, digestion and absorption of nutrients.

The correct answer choices are : A and D.

6 0
3 years ago
What+is+the+molar+absorptivity+of+a+solute+that+absorbs+86%+of+a+certain+wavelength+of+light+when+the+beam+passes+through+a+1.0-
Makovka662 [10]

The molar absorptivity is

Molar absorptivity is defined as the measure a compound's ability to absorb light of a specific wavelength. It is represented by the constant/symbol 'ε'.

The molar absorptivity is given by :

A  = εcl

where A is the absorbance

ε is the molar absorptivity

c is the molar concentration of the compound

and l is the path length

here, the molar concentration of the solution is 0.16 mol

and the path length is 1 cm

to find the molar absorptivity , one must know the absorbance of the material.

(To know more about Molar absorptivity : brainly.com/question/18130658)

8 0
2 years ago
Read 2 more answers
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