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Luda [366]
3 years ago
6

Which human activity negatively affects the stability of the enviroment

Biology
1 answer:
Alona [7]3 years ago
7 0

Answer:

pesticides

Explanation:

damages soil and plants

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Which genetically engineered medicine is used to treat patients who have growth defects?
Kryger [21]

Answer:

c- human growth hormone

Explanation:

this will help the patient to grow, and hopefully not make the defect as noticeable

6 0
3 years ago
What does Na+ represent? Select all that apply.
qwelly [4]
Positive sodium ion!

4 0
3 years ago
Read 2 more answers
The process of phagocytosis involve all of the following except
evablogger [386]

Hello, I figured your question was missing its options so I went online to find them. Here they are:

The process of phagocytosis involves all of the following EXCEPT :

a. adhesion.

b. secretion of cytotoxins.

c. elimination.

d. vesicle fusion.

e. chemotaxis.

Answer:

The correct answer is: b) secretion of cytotoxins.

Explanation:

Phagocytosis is a mechanism performed by cells in which the plasma membrane engulfs a large particle. Phagocytosis is used by cells in the immune system to ingest pathogens like viruses and bacteria.

Phagocytosis consists of many steps:

  1. activation - the phagocytes that were resting are activated in the inflammatory response when a pathogen enters the body.
  2. chemotaxis  - this refers to the process in which the phagocyte moves to the pathogen by following the chemical factors released by these germs.
  3. adhesion - the phagocyte attaches to the pathogen.
  4. ingestion /vesicle fusion - the phagocyte sends pseudopods to engulf the pathogen, and places it in a phagosome, which is an endocytic vesicle. The phagosome and the phagocyte will fuse so the pathogen gets inside.
  5. elimination - the pathogen is destroyed in the phagocyte by the lysosomes present in it.

<u>The</u><u> secretion of cytotoxins</u><u> is not a part of the phagocytosis, and is a process exclusive to </u><u>T cells</u><u> (leukocytes that lack the ability to phagocyte).</u>

5 0
3 years ago
Could plants survive without sunlight, and survive off of just water and vitamin d? Since vitamin d comes from the sun? Or can o
dsp73

Answer:

If the light was artificial, the plant could survive if it has water. You could use a lamp

Explanation:

6 0
3 years ago
Read 2 more answers
Which of the following is usually most helpful in determining the age of these fossils?
iragen [17]

Answer:

D. The depth of the rock layer in which the fossils are found

Explanation:

Size is irrelevant because a t-rex and ancient hamsters lived together

Color is irrelevant, because with time, almost all fossils are a grey tone look

D.) is the better answer between C.) & D.) because layers of the earth are used in the approximation of the time period in which the dinosaur lived

7 0
3 years ago
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