1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ZanzabumX [31]
3 years ago
14

The only t cells that can directly attack and kill other cells are the ________.

Biology
1 answer:
kotykmax [81]3 years ago
6 0
The answer would be cytotoxic cells.
You might be interested in
PLEASE HELP!!!!!
KATRIN_1 [288]
The answer is B, sameness
3 0
3 years ago
4.4-1 Anaerobic Respiration
Vesna [10]

For lactic acid fermentation, the correct options are:

  • pyruvate
  • hydrogen
  • NADH
  • lactic acid
  • Lactic acid
  • pyruvate
  • mitochondria

For ethanol fermentation, the correct options are:

  • pyruvate
  • CO₂
  • acetyl CoA
  • acetyl CoA
  • acetaldehyde
  • Acetaldehyde
  • hydrogen
  • NADH
  • ethanol

<h3>What is a anaerobic respiration?</h3>

Anaerobic respiration is respiration which occurs in the absence of oxygen.

Oxygen is used as an electron acceptor during respiration. However, when oxygen is absent or insufficient, other molecules are used as electron acceptors in order to produce energy.

Anaerobic respiration in large organisms may result in the formation of lactate known as lactic acid fermentation.

In lactic acid fermentation, after glycolysis, the two pyruvate molecules receive hydrogen atoms from NADH creating lactic acid. Lactic acid can be converted back into pyruvate in the liver. The pyruvate can then enter into the mitochondria and cellular respiration, can proceed.

On the other hand, anaerobic respiration in microorganisms produce ethanol and is known as ethanol fermentation.

After glycolysis, the two pyruvate molecules lose a CO₂ atom, creating acetyl CoA. The acetyl CoA atom combines with hydrogen to form acetaldehyde. Acetaldehyde receives a hydrogen atom from NADH, resulting in the production of ethanol.

In conclusion, anaerobic respiration can occur either as a lactate fermentation or ethanol fermentation.

Learn more about anaerobic respiration at: brainly.com/question/13943624

#SPJ1

4 0
2 years ago
A pipe needs to run from a water main, tangent to a circular fish pond. On a coordinate plane, construct the circular fish pond
vaieri [72.5K]

The circular fish pond equation from the information given will be x^{2} +(y -3)² = 9

<h3>How to explain the circle?</h3>

At this location, it is easy to draw a radius along the y-axis to a point of tangency at the origin. That radius is a vertical line, so the tangent line will be perpendicular to a horizontal line.

We choose a fish pond of radius 3 centered at (x, y) = (0, 3). The equation of the circle will be:

(x -0)² +(y -3)² = 3²

x² +(y -3)² = 9

On a coordinate plane, construct the circular fish pond at a given location and specify your center point and radius. Write your circular fish pond equation.

On the coordinate plane, identify the point to represent the location of the water main connection. Construct the pipe so that it is tangent to the fish pond from the water main. Include all steps to creating tangent line.

The examples of tangents in the real world are:

  • When a cycle moves along a road, then the road becomes the tangent at each point when the wheels roll on it.
  • When a stone is tied at one end of a string and then rotated from the other end, the stone will follow a circular path.

Learn more about circles on:

brainly.com/question/24375372

#SPJ1

7 0
2 years ago
In which type of cell cycle(s) does viral dna become integrated into the host cell's dna?
ehidna [41]
Dead, alive,dead and dna and rna 
7 0
3 years ago
Which of the four strands match the strand in the diagram by base pairing?
larisa86 [58]

Answer:

a. GGTGACT

Explanation:

An easy way to remember base pairing is to think of it as (A)pples to (T)rees, (C)ars to (G)arages. So, A pairs with T, and C pairs with G.

Hope this helps! :)

3 0
2 years ago
Other questions:
  • Parasympathetic and sympathetic refer to the two branches of the
    8·1 answer
  • The energy in most ecosystems comes from
    9·2 answers
  • Which type of reproduction is MOST advantageous for the production of a wide variety of different organisms? A) budding B) fragm
    12·2 answers
  • A good way for an adolescent to build and protect her bones is to:
    7·1 answer
  • Is a dill pickle, cotton tee shirt, pancake batter, wicker basket, butter, or rubber gloves made up of cells
    14·1 answer
  • Which part of the brain is involved in the regulation of body temperature, hunger, thirst, and sexual behavior?
    6·1 answer
  • In examining a cell using the electron microscope, you see a structure that is composed of two membranes, contains numerous pore
    9·1 answer
  • Which of the following statements is true?
    6·1 answer
  • What are the ecological impacts of wetland regions?
    6·2 answers
  • When a blood film is viewed through the microscope, the RBCs appear redder than normal, the neutrophils are barely visible, and
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!