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OLEGan [10]
3 years ago
14

Amoebae move by crawling over a surface (cell crawling), which involves _____. Amoebae move by crawling over a surface (cell cra

wling), which involves _____. setting up microtubule extensions that vesicles can follow in the movement of cytoplasm cytoplasmic streaming growth of actin filaments to form bulges in the plasma membrane reinforcing the pseudopod with intermediate filam
Biology
1 answer:
Nina [5.8K]3 years ago
8 0

Answer:

Growth of actin filaments to form bulges in the plasma membrane.

Explanation:

Actin filaments is a vital element in the body of unicellular organisms such as amoeba which is responsible for the movement of unicellular organism from one place to another. It also helps in the division of the cell and increase its population. This actin filament also helps the amoeba by engulf food substance for growth and survival.

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What would you say to people who deny global warming just because it shows in the<br> wintertime
SashulF [63]

Answer:

i would probally ask them why they dont think its real. I would honestly try to understand. And then i would show them graphs (online of course) about how its affecting the planet and if they still dont listen id probally just fight them

Explanation:

7 0
3 years ago
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In Alaska, grizzly bears must eat 10 fish and drink up to 25 liters of water to live. A
EleoNora [17]

The fish is the limiting factor because its population <u>determines the survival and availability  of the grizzly bears.</u>

A limiting factor is  resources(biotic or abiotic) that affects or determine the availabity and growth of an organism or group of an organism within an ecosystem.

The more fish it takes, the more the liver produces urea, and kidney tubules  makes use of the urea in it tubules for urine formation in the loop of Henle. The urine formation and loss, leads to intake of water and the sequence continues.

This is an example of a biological limiting factor because the bear  predate on the fish for survival and population.

If the population of the fish drops,( <u>the limiting facto</u>r) the bear drinks less water based on above, and therefore <u>disruptions  of the ecosystem</u>.

More brainly.com/question/25824973

3 0
2 years ago
Each ABO blood group is associated with the presence/absence of RBC antigens and the presence/absence of antibodies in the plasm
harina [27]

Answer:

a. Type O blood - No A or B antigens on RBCs-Anti-A antibodies in plasma-Anti-B antibodies in plasma

b. Type A blood - A antigen on RBCs- Anti-B antibodies in plasma

c. Type B blood - B antigen on RBCs- Anti-A antibodies in plasma

d. Type AB blood - A antigen on RBCs- B antigen on RBCs- Neither anti-A or anti-B in plasma

Explanation:

ABO blood grouping system represents multiple allelism which was discovered in humans by Karl Landsteiner. The blood group is determined by the presence or absence of A & B antigens and antibodies.

The 4 blood groups which exist in ABO system are O, A, B and AB. Also, allele A and B are co-dominant i.e. if they both will exist on the surface of an RBC then both will be equally expressed which implies that there will be no dominant or recessive allele.

Type O blood group has H antigen on the surface of RBC and has both the antibodies i.e. antibody A and B. The absence of antigens A and B makes it a universal donor.

Type A blood group has A antigen on RBC and has antibody B in the plasma.

Type B blood group has B antigen on RBC and has antibody A in the plasma.

Type AB blood group has both the antigens i.e. antigen A and B on RBC and does not have any antibody in the plasma which makes it a universal acceptor.

3 0
3 years ago
What is asexual reproduction?<br> I will give brainliest
finlep [7]

Answer:

Asexual reproduction is a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes. ... Asexual reproduction is the primary form of reproduction for single-celled organisms such as archaea and bacteria.

Explanation:

6 0
3 years ago
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Which statement best explains why the overall charge on an atom is zero? The positive charge of the neutrons in the nucleus equa
Burka [1]

B) The positive charge of the protons in the nucleus equals the negative charge in the electron cloud.

(I just took the test and it was right). :)

3 0
4 years ago
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