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3 years ago

A force that resists the movement of one surface past surface is

Biology

1 answer:

HACTEHA [7]3 years ago

4 0

Friction is a force resisting the movement between 2 objects. (slows or stops the movement)

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This has to be Wisconsin weather. Go to any weather-reporting site and find the daily climate report for the previous day for th

pishuonlain [190]

Answer: what are we answering

Explanation:

4 0

2 years ago

WILL GIVE BRAINIEST. ( energy in foods is provided by? A.minerals b. macro nutrients c. micro nutrients D. vitamins)

stepladder [879]

Answer:

The answer to your question is: B. marco nutrients

Explanation:

A. minerals Minerals are micro nutrients, and the help enzymes in the metabolism but they do not provide energy the body.

B. macro nutrients Macro nutrients are composed by proteins, lipids and

carbohydrates; lipids and carbohydrates are the

main sources of energy.

C. micro nutrients Micronutrients and vitamins and minerals, they help

the body to acquire energy, but they do not

produce it.

D. vitamins vitamins help to maintain a health body but do not

produce energy.

5 0

3 years ago

Age-associated changes in the immune system, also known as _______________________, are thought to be responsible for the increa

wariber [46]

Answer:

The correct answer is: Immunosenescence.

Explanation:

Immunosenescence can be defined as a biological age-related phenomenon due to which the cells of the immune system are unable to function efficiently with increase in age.
As a result of this the aged individuals becomes susceptible to various infections and diseases.
This happens because of the following reasons:

The immune cells are formed from the progenitor cells called the Hematopoetic Stem Cells (HSCs) which are abundantly found in the bone marrow. These cells have the capacity of self-renewal and also differentiation into various types of immune cells. Due to aging, these cells accumulate large number of Reactive Oxygen Species (ROS) that that causes oxidative damage to the DNA. Also, with age the telomere (the repititive DNA sequence located at the chromosome terminal that protects the end of the chromosome from undergoing recombination or fusion with other chromosomes) length shortens resulting in the generation of damage in DNA. All these reduces the self renewal and differentiation capacity of these cells.
Other cells of the immune system like, the white blood cells, anti-body producing B-cells, cytotoxicity inducing T-cells, natural killer cells also accumulate similar DNA degrading components. This reduces their life time and also the efficiency of their activity.

5 0

3 years ago

if a certain tissue of the body needs more energy, which organelle is more likely to abundant in the cells of this tissue? eluci

gregori [183]

<h2>Answer:</h2>

<h3>Chloroplasts</h3>

Chloroplasts and mitochondria are energy-converting organelles in the cytoplasm of eukaryotic cells. Chloroplasts in plant cells perform photosynthesis; the capture and conversion of the energy of sunlight.

<h2>Hope this helps you ❤️</h2>

<h2>Mark me as brainliest ❤️</h2>

3 0

3 years ago

Which takes place during the second trimester of pregnancy?

777dan777 [17]

Answer:

Explanation:

Nrcause meow kej focus so

6 0

2 years ago