Answer:
dog Sheba Greg DVD the be bugs iciclejs kegs. hfbfbjed
Your heart muscle needs its own supply of blood because, like the rest of your body, it needs oxygen and other nutrients to stay healthy. For this reason, your heart pumps oxygen-rich blood to its own muscle through your coronary arteries.
Answer:
plants.
1.cannot move from.
one place to another.
2.most are green.
3.sense organ absent
animals
1.can move from one place to another
2.have different colours
3.sense organ present
Answer:
The events in chronological order are:
- Abrin is absorbed into the blood and enters the body's cells
- Abrin binds to ribosomes in the cytoplasm
- Abrin inactivates the 28S rRNA in the large subunit of the ribosome.
- Ribosomes are unable to add new amino acids to polypeptides
- Protein synthesis halts in many tissues
- Multiple organ systems fail
- Victim dies
Explanation:
Abrin is a toxic protein obtained from the seeds of Abrus precatorius, it is highly toxic, with an estimated human fatal dose of 0.1-1 microgram/kg, and causes death after accidental and intentional poisoning.
When ingested the abrin would enter the victim's body and travel through the blood and eventually enter a cell's cytoplasm (abrin is absorbed into the blood and enters the body's cells). Once there it would interact with the ribosomes and reacts with them on a molecular level (peptide bond catalytic enzyme) (abrin binds to ribosomes in the cytoplasm), which results in the ribosome exhibiting its toxic response to abrin (abrin inactivates the 28S rRNA in the large subunit of the ribosome). As a result of the ribosome reacting to abrin (ribosomes are unable to add new amino acids to polypeptides), protein synthesis within that cell is affected (protein synthesis halts in many tissues). Once multiple cells are affected by abrin the organ will exhibit its toxic response (multiple organ systems fail), and the victim would die.
<u><em>7.</em></u>
Acomodation is the process in which the lens adapt to the distance of the object you look at.
During acomodation The lens changes shape and during the pupil reflex the pupils changes size so the answer is <u><em>C</em></u>
<u><em>8.</em></u>
The cerebelum is not attached to the spinal cord, but to the brainstem through cerebellar peduncles
medulla oblongata is part of the brainstem and it is attached to the spinal cord so the answer is <u><em>B</em></u>
<u><em>9.</em></u>
Insulin is a hypoglicemiant hormone that stimulates glycogenesis which is the synthesis of glycogen from glucose, hence the answer is <u><em>C</em></u>
<u><em>10.</em></u>
You get a fight or flight response which is mediated by adrenaline.<u><em> B</em></u>
<u><em>11.</em></u>
Adrenaline increases sweat production and decreases digestive activity so the answer is <u><em>A.</em></u>
