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goldenfox [79]
3 years ago
11

Multicellular organisms reproduce by binary fission. True or False?

Biology
1 answer:
ozzi3 years ago
6 0
The answer to this item is FALSE as binary fission or division of cell by two would only occur to prokaryotes or some single - celled eukaryotes. This is a process to which after replicating the genetic materials, there exist two daughter cells which are almost the same in size. 
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Scientific theory is based on
sladkih [1.3K]

Answer:

I think it's D

Explanation:

Cause usually a scientist creates a hypothesis or theory so they can prove that it's true.

¯\_(ツ)_/¯

3 0
3 years ago
Read 2 more answers
The nurse is caring for a client on a patient-controlled analgesia (pca) pump. what additional interventions by the nurse would
zysi [14]
<span>Answer: Correct1 Ask the client to tell the purpose of the PCA device. Correct2 Emphasize that client controls medication delivery. Correct3 Explain that the pump prevents the risk of overdose. 4 Tell family members to operate the PCA device for the client. 5 Teach the use of PCA after the client awakens from sedation. The nurse should teach the client about PCA and evaluate the client's understanding by asking the client to explain it back. The client should be the one controlling the administration of the medication based on the pain. It is programmed in a way to prevent overdose. The family members should not operate the PCA device for the client because the dose depends on the pain perception by the client. The client should be taught the use of the device before the procedures so that when the client awakens from sedation, the client can administer the analgesia.</span>
4 0
4 years ago
Very small changes in the solute concentrations in the various fluid compartments cause water to move from one compartment to an
Oksana_A [137]

Answer:

a. Decrease water reabsorption : decrease blood pressure.

b. Decrease peripheral resistance : decrease blood pressure

c. Vasodilation : decrease blood pressure

d. Decrease salt intake : decrease blood pressure

e. Decrease blood volume : decrease blood pressure

f. Vasoconstriction : increase blood pressure

g. Increase peripheral resistance:  increase blood pressure

h. Increase salt intake:  increase blood pressure

i. Increase blood volume : increase blood pressure

j. Increase water reabsorption: increase blood pressure

Explanation:

  • Total peripheral resistance: This term refers to the resistance offered by the vascular system to the blood flow.  This resistance is a result of the friction between the blood and the vessel's walls. In other words, it is the opposition of the vessels to blood flow. The total peripheral resistance is the summary of all the bloody circuit resistances in the body. Those mechanisms that induce vasoconstriction conduce to an increase in total peripheral resistance, while mechanisms that induce vasodilation provoke a decrease in total peripheral resistance.    
  • Blood pressure: This term refers to the strength applied by the blood against the vessel walls as it flows.  This pressure is determined by the bombed blood strength and the volume as well as by the vessel size and flexibility. Blood pressure changes continuously according to the activity, temperature, diet, emotional state, among others.    
  • Salt ingestion causes an increase in plasmatic osmolarity, stimulates thirst, and hence, water ingestion. Sodium retains water, expanding the blood volume and causing an increase in vessel pressure.
  • The antidiuretic hormone, also known as vasopressin hormone, is released by changes in serum osmolarity or blood volume. Its function is to keep homeostasis and make kidneys conserve or keep water by concentrating urine and by reducing its volume. By these actions, the antidiuretic hormone stimulates water reabsorption, according to the organism´s needs.
  • Kidneys control blood pressure in many ways. If the pressure is elevated, kidneys produce the loss of salt and water, normalizing arterial pressure. But if pressure is low, kidneys conserve water.          
3 0
3 years ago
How do researchers hope to understand healthy aging by the study of proteins?
nataly862011 [7]

Answer:

Of course, you could scan their driver’s license or look for signs of facial wrinkles and gray hair. But, as researchers just found in a new study, you also could get pretty close to the answer by doing a blood test.

Woman looking at herself in mirror That may seem surprising. But in a recent study in Nature Medicine, an NIH-funded research team was able to gauge a person’s age quite reliably by analyzing a blood sample for levels of a few hundred proteins. The results offer important new insights into what happens as we age.

Explanation:

For example, the team suggests that the biological aging process isn’t steady and appears to accelerate periodically — with the greatest bursts coming, on average, around ages 34, 60, and 78

7 0
3 years ago
Will yall please help me (agriculture)
choli [55]

Answer:

Agricultural activities that cause NPS pollution include poorly located or managed animal feeding operations; overgrazing; plowing too often or at the wrong time; and improper, excessive, or poorly timed application of pesticides, irrigation water, and fertilizer. Industrial farming practices, such as monocropping and intensive tillage, have also compromised soil health over time. ... Excessive fertilizer use can also cause a buildup of salts in soil, heavy metal contamination and accumulation of nitrate (which is a source of water pollution and also harmful to humans

Explanation:

However agriculture is both cause and victim of water pollution. It is a cause through its discharge of pollutants and sediment to surface and/or groundwater, through net loss of soil by poor agricultural practices, and through salinization and waterlogging of irrigated land.

8 0
3 years ago
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