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dem82 [27]
3 years ago
7

What do we call a molecule that has a ratio of two hydrogen atoms for every one atom of carbon and oxygen?

Biology
1 answer:
vichka [17]3 years ago
5 0

Answer:

Lipid

Explanation:

organic compound that contains a larger number of carbon and hydrogen atoms than oxygen atoms.

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The fins of lobe-finned fish are supported by extensions of the skeleton and are moved by muscles within the fin whereas the fin
alisha [4.7K]

i think the answer is false
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3 years ago
Caffeine prolongs and intensifies the effects of epinephrine. Which of the following potential mechanisms of action of caffeine
kherson [118]

Answer:

a. inhibits cAMP phosphodiesterase, the enzyme that converts cAMP to AMP.

Explanation:

The phosphodiesterases are a group of enzymes that are capable of breaking phosphodiester bonds such as those between nucleotides in nucleic acids. The Cyclic adenosine monophosphate (cAMP) is a second messenger involved in intracellular signaling pathways. This molecule (cAMP) is hydrolyzed by the cAMP-dependent phosphodiesterase, which catalyzes the enzymatic breakdown of phosphodiester bonds (i.e., hydrolyzing cAMP to 5-AMP). The cAMP levels are modulated by the balance between its generation and the degradation via cyclic nucleotide phosphodiesterase.

4 0
3 years ago
Which of the following is not one of the five main groups of arthropods?
Vitek1552 [10]

Five major Arthropod classes

Arachnida. mites, ticks, spiders, scorpions.

Chilopoda. Centipedes.

Crustacea. (crabs, lobsters, shrimp.

Diplopoda. Millipedes.

Hexapoda. Insects.

so your answer will be mollusks

4 0
2 years ago
Read 2 more answers
What species of the genus homo was the first to have bigger brains and limb proportions similar to modern humans, to use fire, a
Ket [755]

The extinct ancient human Homo erectus is a species of firsts. It was the first of our relatives to have human-like body proportions, with shorter arms and longer legs relative to its torso.

<h3>What are Homo erectus?</h3>

Homo erectus, an extinct species of Pleistocene archaic human, first appeared about 2 million years ago. Several human species, including H. heidelbergensis and H. antecessor, seem to have diverged from H. erectus, with the former being largely accepted as the ancestor of Neanderthals, Denisovans, and modern humans. Among the first recognizable representatives of the genus Homo are its specimens. The first known ancestor of modern humans, H. erectus, had a continental range that stretched from the Iberian Peninsula to Java. H. floresiensis and possibly H. luzonensis may have its origins in Asian populations of Homo erectus. H. erectus soloensis, from Java, dates to a time period between 117,000 and 108,000 years ago.

To learn more about Homo erectus from the given link:

brainly.com/question/13542251

#SPJ4

8 0
1 year ago
Simone is training for a swim race. How can she make sure she always trains at the same speed of 2 miles per hour? Check all tha
Kipish [7]

Answer:

B. Every point on the line is an equivalent ratio.

C. As the line goes up, the speed increases.

D. Simone can pick any ratio on the line and she will be swimming at a rate of 2 mph.

Explanation:

If the line on the graph has equivalent ratio, it shows that the Simone swim at the speed of 2 mph. If the line on the graph goes up , it means the speed of swimming increases while when the line on the graph goes down, the swimming speed decreases so maintaining the speed of 2 mph, the line have to go horizontally in straight line. If Simone can pick any ratio on the line present on the graph so she has to swimming at a rate of 2 mph.

5 0
3 years ago
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