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pashok25 [27]
3 years ago
7

The outer cell membrane is a type of exotoxin produced by bacteria. True False

Biology
1 answer:
Dafna11 [192]3 years ago
8 0

Answer:

TRUE

Explanation:

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Organisms that swim freely and maneuver actively in the water column are called what?
ohaa [14]

Answer:

Zooplankton - Animals (mostly microscopic) which drift freely in the water column.

Explanation: Zooplankton, small floating or weakly swimming organisms that drift with water currents and, with phytoplankton, make up the planktonic food supply upon which almost all oceanic organisms are ultimately dependent.

Hope this helped!!

4 0
3 years ago
Which of the following is not a line of evidence supported by empirical evidence?
Artist 52 [7]

Answer:

B

Explanation:

8 0
3 years ago
A red blood cell placed in a hypertonic solution will shrink in a process called crenation. A red blood cell placed in a hypoton
-BARSIC- [3]

Answer:

The correct answers are A. "crenation", B. "hemolysis", C. "hemolysis", D. "crenation" and E. "neither will occur".

Explanation:

0.9% (m/v) NaCl or 5.0% (m/v) glucose are isotonic solutions at which the cells will not suffer any harmful consequence. A solution with a higher concentration than the isotonic conditions would result in the cells crenation, while a solution with a lower concentration would result in the cells hemolysis. Therefore the consequences of putting the red cells to the solutions stated in the question are as following:

A: 3.21% (m/v) NaCl Solution  = crenation (higher than 0.9% (m/v) NaCl)

B: 1.65% (m/v) glucose Solution  = hemolysis (lower than 5.0% (m/v) glucose)

C: distilled H2O Solution  = hemolysis (lower than 0.9% (m/v) NaCl or 5.0% (m/v) glucose)

D: 6.97% (m/v) glucose Solution  = crenation (higher than 5.0% (m/v) glucose)

E: 5.0% (m/v) glucose and 0.9%(m/v) NaCl = neither will occur (equal to 5.0% (m/v) glucose and 0.9% (m/v) NaCl)

6 0
3 years ago
The wild-type allele for a gene has more base pairs than the mutated form of the allele. Which type of mutation occurred?
CaHeK987 [17]
The type of mutation that occurred would be base pair deletion.

Brainliest appreciated :D
6 0
3 years ago
Which term refers to a cell that had more solute on the inside than on the outside
Ghella [55]
Hypotonic (assuming that the solution on the outside is the same solution on the inside)
7 0
3 years ago
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