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zzz [600]
3 years ago
7

Which is not safe when working with chemicals?

Biology
2 answers:
AfilCa [17]3 years ago
5 0
The answer is C handling acids ( never do that ) :)))
mariarad [96]3 years ago
3 0
C - handling acids :) 
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Which of the following correctly pairs an ecological level with an example? Select ALL that apply.A. community - the fish, frogs
ch4aika [34]

Answer:

A. community - the fish, frogs, insects, and aquatic plant species that live in a particular lake

B. individual - a groundhog living in your backyard

C. ecosystem - all of the species of plants and animals and the non-living resources in a tropical forest

Explanation:

A community is defined as a group of populations of two or more different species which inhabit the same area at a certain time.

Individual is defined as one type of organism.

Ecosystem includes communities, the environment, the non-living or abiotic conditions and their influence on living organisms.

5 0
3 years ago
According to the model below, how long ago did the common ancestor of all the organisms on the
lapo4ka [179]

<em><u>Answer</u></em>

<em><u>about 3.9 billion years ago</u></em>

<em><u>about 3.9 billion years agoThe most recent common ancestor of all currently living organisms is the last universal ancestor, which lived about 3.9 billion years ago.</u></em>

6 0
2 years ago
Which kind of organism is a heterotroph?
just olya [345]
Autotrophs are organism that is a Heterotroph. 
7 0
3 years ago
What is the role of science and technology for the betterment of human living?
Maslowich

Answer:

Science and technology improve the our lives. This is thanks to the many discoveries science have gifted us. When it comes to science, scientists have discovered all type of drugs that helped us raise our life expectancy. Technology advances at the same time science does, as we discover new natural resources  to use we make simple task faster and easier with technology, also makemas our health care system more acurate and efective

3 0
2 years ago
If the citric acid cycle was interrupted after the reaction that forms citrate, predict how this would affect the total amount o
vagabundo [1.1K]
<h2>Correct answer is option "E"</h2>

Explanation:

  • The citric acid cycle, otherwise called the Krebs cycle or tricarboxylic acid (TCA) cycle, is the second phase of cell breath. This cycle is catalyzed by a few compounds and is named to pay tribute to the British researcher Hans Krebs who recognized the arrangement of steps engaged with the citric acid cycle. The usable vitality found in the starches, proteins, and fats we eat is discharged for the most part through the citric acid cycle. Despite the fact that the citric acid cycle doesn't utilize oxygen legitimately, it works just when oxygen is available.  
  • In eukaryotic cells, the citric acid cycle utilizes one particle of acetyl CoA to produce 1 ATP, 3 NADH, 1 FADH2, 2 CO2, and 3 H+. Since two acetyl CoA particles are created from the two pyruvic acid atoms delivered in glycolysis, the complete number of these atoms yielded in the citric acid cycle is multiplied to 2 ATP, 6 NADH, 2 FADH2, 4 CO2, and 6 H+. Two extra NADH atoms are additionally produced in the transformation of pyruvic acid  to acetyl CoA preceding the beginning of the cycle. The NADH and FADH2 atoms delivered in the citric acid cycle are passed along to the last period of cell breath called the electron transport chain. Here NADH and FADH2 experience oxidative phosphorylation to produce more ATP.
  • Hence, the correct answer is option E " The amount of ATP would be reduced from a total of 38 ATP to 14 ATP"

5 0
3 years ago
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