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White raven [17]
3 years ago
13

Which of the following is NOT TRUE of animals that have open circulatory systems?

Biology
1 answer:
ki77a [65]3 years ago
8 0
1. They have a mechanism to pump circulatory fluid.
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Fruit I think would be the table
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How does the models support the idea that genetic mutations may arise from environmental factors?
Vanyuwa [196]

The chemical tags that are attached to DNA, known as the epigenome, can potentially be altered by the environment. These tags change the amount of protein that is produced from the genes by making them more or less active.

  • Traits are frequently influenced by environmental factors rather than genetics. Although not always. Sometimes a gene's DNA sequence or degree of activity is altered by the environment.
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7 0
1 year ago
Please answer!!!! really need to submit this soon!!​
umka21 [38]

Answer:

To my Knowledge and understanding, the name of fluid A is oxygenated Blood or u could simply submit blood. Fluid A does contain red blood cells, namely Hemoglobin. I am not quite sure what fluid B is, but visually it looks like the cytoplasm surrounding cells. According to my knowledge cytoplasm does not contain red blood cells, but rather it contains glucose,sugars and proteins etc.

Hope this helps!

Kind regards

Farah Syed

Explanation:

/-

7 0
2 years ago
Electrical wires are generally protected by a tube of plastic. a similar insulating function is performed in the nervous system
Allisa [31]

The myelin sheath is the protective layer, which is present in the outer layer of the neural cells. This myelin sheath prevents the loss of electrical impulses, which are being conducted in the neurons. This also act as an insulator between neuron and its external environment.

This layer is mainly made up of the protein and fatty substance. The degeneration of the myelin sheath result in many neurological disorders.


Hence, the correct answer is myelin sheath.

7 0
3 years ago
Concerning proton movement in mitochondria and chloroplasts, the __________ have a __________ H+ concentration. Choose one: A. l
umka2103 [35]

Answer: The answer is D - Intramembrane space in mitochondria; high

Explanation:

Mitochondria is an organelle in the cell, it is known as the power House of the cell because of its role in the storage and production of energy. During electron transport chain the proton pumps generate a proton gradient which is stored in form of energy.

During proton pumping and electron transfer the electrons are passed down the chain from the matrix to the inter membrane of the mitochondria. The electrons move from higher concentration of level to lower energy level. Some of these are used to pump Hydrogen ions (H+), moving them out of the matrix into the inter membrane space.

The Intramembrane space of the mitochondria therefore has a a high concentration of Hydrogen ions (H+).

I hope this helps.

4 0
3 years ago
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