Plant cells have _ and _, which are not present in animal cells.a. mitochondria, chloroplasts
b. cell membranes, cell walls
c. chloroplasts, nucleus
d. chloroplasts, cell walls

Answers

Answer 1

Answer: D. chloroplasts, and cell walls.

Chloroplasts are only uses by plants for photosynthesis.
Cell walls are not present In animal cells.

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What is the main working cells of the specific immune response

Answers

To raise the defense, the body must first recognize the pathogen or whatever this attacker. There are two types of immune response: innate and adaptive,the Adaptive immune response is much more efficient because it is more specific.

hope this helps!

Which process is performed by both plants and animals to break down sugars to provide energy in the form of ATP

Answers

Cellular Respiration is the process performed by both plants and animals to break down sugars to provide energy in the form of ATP. The energy is processed in the mitochondria.

the answer is cellular resporation

How do pain relievers work?increase production of white blood cells
increase body temperature
block messages within the nervous system
block hormone production

Answers

Answer:

The correct answer is option C, block messages within the nervous system

Explanation:

Whenever our body gets injured, the damaged cells in it releases a chemical known as “prostaglandin” which sends pain signals through the nerves to the brain. Now when a pain reliever is injected in the body, it stops the production of prostaglandin. As the chemical production stops, no pain messages are send to the brain and thus the pain goes away

I believe the answer is is that it blocks messages within the nervous system, because pain is perceived in the brain through messages sent from the nervous system.

What particles make up the nucleus of an atom?

Answers

The nucleus is made up of protons and neutons. The above answer is incorrect. Other things of the nucleus include the nucleolus, nuclear membrane, nuclear pores, and chromatin, which contains DNA.

At room temperature, an element is aA. gas
B. liquid or gas
C. gas or solid
D. liquid, gas, or solid

Answers

D. liquid, gas, or solid

Activating the muscles involved in smiling may actually make us feel happier. this is an example of (the)

Answers

Activating the muscles involved in smiling may actually make us feel happier and this is an example of Facial feedback effect . The facial feedback effect states that skeletal muscle feedback from facial expressions can influence emotional experience. Facial movement plays a causal role in regulating emotional experience and behavior.

Final answer:

The idea that creating a physical smile can cause feelings of happiness is an example of the facial feedback hypothesis. This suggests that our facial expressions can impact our emotions, a concept backed by various studies. This is observed in universal expressions like laughter that signal joy or pleasure.

Explanation:

The statement that activating the muscles involved in smiling can make us feel happier is an example of the facial feedback hypothesis. This hypothesis suggests that facial expressions can influence our emotions. For example, physically forcing yourself to smile can potentially lead to a lighter mood. This concept has been examined in studies like the one by Soussignan in 2002, which found that a Duchenne smile, a genuine smile that involves the muscles around both the mouth and eyes, can trigger positive emotions and physiological responses. Similarly, laughter is a universal expression of joy or pleasure recognized across cultures. Strategies like these can be a part of successful happiness interventions, as seen in the study by Seligman et al., 2005 where participants recorded good things from their day and saw increases in happiness.