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jonny [76]
4 years ago
6

Photosynthetic cyanobacteria caused an increase in atmospheric levels of

Biology
1 answer:
tresset_1 [31]4 years ago
3 0

Answer:

oxygen in the environment

Explanation:

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Answer all parts of the question:
tamaranim1 [39]

Answer:

a. 0.03054 b. 0.000032 c. sorry I am not perfect

Explanation:

  • a. In the number 0.03054 , you need to move the decimal point two places to the right to get to 3.054 (which is between 1 and 10). Since you moved the decimal point two places to the right, you must indicate it by saying that you multiplied 3.054 by 10−2 . Think about it: 3.054×10−2=0.03054 .
  • b. Answer: 0.0000302 Step-by-step explanation: When 10 is to the power of a negative number, "move" the decimal dot left. 10⁻⁵ means to "move" the decimal 5 times to the left. 1. Write a bunch of extra 0's for the coefficient. (The coefficient is 3.02). 0000003 . 02 2. Count 5 place values over. 00←0←0←0←0←3 . 02 3. Put the decimal behind the digit. 00 . 0000302 4. Get rid of the 0s that you don't need. You only need one 0 left of the decimal. 0.0000302           <= Final answer 
  • c. sorry but I am not perfect at this

7 0
3 years ago
What class of organic compounds is composed of amino acids?
Mashutka [201]
Amino acid<span>, </span>any of a group of organic molecules that consist of a basic amino group (−NH2<span>), an acidic carboxyl group (−COOH), and an organic </span>R<span> group (or side chain) that is unique to each amino acid. </span>
7 0
3 years ago
In which process is a zygote formed in a plant from the joining of a sperm and an egg?
sergejj [24]

Answer:

A. Fertilization

Explanation:

5 0
3 years ago
Which component of bone is responsible for its strength?
Lorico [155]
<span>The answer is osteoid. It begins with unmineralized collagen fibers and ground substance. Later it becomes a calcified matrix. The matrix is mainly made of collagen and calcium ions.   When not well mineralized, osteoblasts proliferates hence the bone will not have the desired strength. This results to deformation of bone causing rickets</span>




6 0
3 years ago
What type of small insects do some ants “farm”?
Alex_Xolod [135]

Answer:

Ants and aphids have a special relationship, mutualistic in nature

Explanation:

hey each benefit from one another; ants protect aphids and aphids feed ants. Aphids feed their farmer ants a sweet honeydew liquid in exchange for protection from predators.

5 0
2 years ago
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