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Anni [7]
3 years ago
15

A structure has these features:

Biology
1 answer:
Westkost [7]3 years ago
4 0

Answer: D) plasmid

Explanation:

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Describe how energy flows through ecosystems
just olya [345]

Answer:

Energy enters the ecosystem via sunlight as solar energy

Explanation:

when the solor energy comes down it goes to the grass when the animals eat it they have consumed that i put a picture below if that helps

5 0
3 years ago
What is the name of the short tube that stores solid waste until it is eliminated through the anus?
stiks02 [169]
The organ you're looking for is the liver.

Hope it helped!
8 0
4 years ago
Donna is suffering from leg pain in which the calf muscles contract involuntarily
Levart [38]
It occurs when part of the muscles of the lower leg (gastrocnemius or soleus) are stretched beyond their stability to withstand the tension. This stretching can result in small micro-tears to the muscle fibers or, in a severe injury, a complete rupture of the muscle fibers.  
6 0
3 years ago
Read 2 more answers
Consider the following prairie food chain. Tall grass is consumed by grasshoppers that, in turn, are eaten by mice, and the mice
AleksandrR [38]

Answer:

Grasshoppers are primary consumers.

Explanation:

Autotrophs serve as primary producers in a food chain as they can make organic food by the process of photosynthesis. In the given food chain, tall grass is the primary producer. Grasshoppers derive their nutrition from the tall grass. The organisms that derive nutrition directly from the primary producers are said to be primary consumers. This makes grasshoppers primary consumers.

Mice the secondary consumers as they feed on the grasshoppers, the primary consumers. Red-tailed hawks are the top consumers in the given food chain. The bacteria, beetles, fungi, and worms are the decomposers that derive nutrition from the organic matter present in the dead bodies of the red-tailed hawks.

8 0
3 years ago
The synthesis of nucleotides requires several amino acids. Sort each amino acid as a precursor in the synthesis of purines, pyri
Lapatulllka [165]

Answer:

Glycine is required for purines, aspartate for pyrimidines, glycine and aspartate for both purines and pyrimidines. The remaining amino acids are not required for the synthesis.

Explanation:

Nucleotides are the monomer for the synthesis of DNA and RNA. The two main class of nitrogenous bases are purines and pyrimidines. These nitrogenous bases require the amino acids as a precursor for their synthesis.

Glycine is the simplest amino acid and required for the synthesis of purines. Aspartate is required for the synthesis of pyrimidines. Glutamine and aspartate are required for the synthesis of both purines and pyrimidines. Lysine, leucine, alanine, histidine, methionine, tryptophan and alanine are not used as a precursor for the nucleotides.

4 0
3 years ago
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