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makvit [3.9K]
3 years ago
12

How do you think scientist know the carnivore was chasing pleurocoelus?​

Biology
1 answer:
Stells [14]3 years ago
5 0

Answer:

Explanation:

in 600 bc carnivores began to chase for pleurocoelus because they realized it was great for their immune systems therefore they chased after them a lot.

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4. For the picture can you answer 3 or 4 please Based on your knowledge about prokaryotic cells and
Lelu [443]

Answer:

For number 3:

The bacterial cell is a prokaryotic cell and the fungal cell is a eukaryotic cell.

Explanation:

I cannot see the cells to answer number 4, but for number three, bacteria is a prokaryote and fungal cells are eukaryotes. You can most likely determine this by the presence of a nucleus (a prokaryote cell will not have one where a eukaryotic cell will).

3 0
3 years ago
What happens in the postsynaptic neuron when excitatory neurotransmitters bind to receptors?
zubka84 [21]

Answer:

it causes the depolarization of the target cell

Explanation:

Glutamate is an excitatory amino acid neurotransmitter that binds to specific receptors on the surface of target cells and thus causes its depolarization. During glutamate-mediated depolarization, the difference in charge inside and outside the cell is lost due to the entry of sodium and calcium positive ions into the postsynaptic cell (neuron) through specific ion channels. Moreover, glutamate binding also leads to the exit of potassium ions from the cell, thereby resulting in excitation. Through this mechanism, glutamate regulates many signaling pathways, such as those involved in memory, learning, emotions, cognition, motor control, etc.

6 0
3 years ago
Please help..........
dedylja [7]

Answer:

liquid lava

Explanation:

molten means: become liquid

7 0
3 years ago
A number of different types of mutations in the HBB gene can cause human β-thalassemia, a disease characterized by various level
Lubov Fominskaja [6]

Answer:

Mutations in introns create alternative splicing site which in turn make mRNA with reduced or no translation.

Explanation:

Introns regulate the splicing of heterogenous RNA during post transcriptional modifications as well as affect the stability of mature mRNA. The stable mRNA is more likely to be translated into proteins. So, introns also regulate the translation of mRNA.  

In human beta thalassemia, mutations in intron create alternative splicing sites which in turn affect the formation of beta globin chain of hemoglobin. Lack of beta globin chain reduces the amount of functional hemoglobin and causes anemia.

3 0
3 years ago
Do we classify viruses as living? give support for both yes and no arguments.
ozzi
Viruses are classified as non-living. Although they have DNA or RNA as genetic information, a protein coat, and some, a lipidic envelope, they do not have the machinery to multiply on their own and therefore are non-living. <span>A </span>virus<span> is simply an </span>infectious agent<span> that, through different ways, many times only by releasing its genetic information inside the cell, </span>replicates<span> using other living-cells machinery</span><span>. Viruses are able to infect any type of cell.</span>
4 0
3 years ago
Read 2 more answers
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