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
Alina [70]
3 years ago
9

Jack leaves his house and walks north for 30m. He turns left and walks west for 30m. He then turns left again and walks another

30m. What is the point of reference for Jack’s motion?
Biology
1 answer:
coldgirl [10]3 years ago
3 0

Answer:

Jack's house

Explanation:

Point of reference is a point in a space that can be used to tell where other things are positioned. It is also known as the reference point. A simple way to put this is the starting point. As you can see in your example, Jack started from his home and is moving in directions depending on his house's location.

You might be interested in
A disorder in which frequent bingeing is followed by compensatory behaviors to rid the body of excess kilocalories is called hyp
Jet001 [13]

The right option is Bulimia nervosa

Bulimia Nervosa is an eating disorder in which there is repeated series of binge eating followed by compensatory behaviours such as purging to eliminate excess calories in the body. Excessive use of laxatives, forced vomiting, and exercising are the methods of purging used in bulimia nervosa. An individual with bulimia nervosa often give prominence to their body weight or shape.






7 0
4 years ago
A female patient who is diabetic sustained an ST-elevation myocardial infarction (STEMI). The nurse provides discharge teaching.
Aneli [31]

Answer:

The options

A) "Medications are needed to prevent heart failure."

B) "I will take aspirin, atenolol, and captopril indefinitely."

C) "My blood pressure should be less than 130/80 mm Hg."

D) "Daily estrogen will prevent another heart attack."

The CORRECT ANSWER IS D)

D) "Daily estrogen will prevent another heart attack."

Explanation:

A reduction in the natural hormone estrogen levels could be a causative factor in heart disease increase within post-menopausal women. Estrogen is thought to show a positive impact on the inner layer of artery wall, functioning in such a way to keep blood vessels elastic.

In spite of the advantages of estrogen, the American Heart Association speaks against employing postmenopausal hormone therapy to decrease the likelihood of coronary heart disease or stroke as some research works have revealed that it vividly do not decrase the risk of heart attack but increases the likelihood of blood clots and stroke.

4 0
3 years ago
why would it be hard to find an ideal co2 level if the light intensity is very low when in photosynthesis?
Yuliya22 [10]
If CO2 was in very small amounts then it would be the limiting factor of photosynthesis, this means the process will take place at a much slower rate 
5 0
3 years ago
A windstorm transports a few seeds of a plant species from Island A, where the species is abundant, to Island B, where prior to
sergejj [24]

Answer:

Genetic drift

Explanation:

Genetic drifts is a change in the frequencies of alleles due to chance or at random. Therefore there is no environmental or survival influences.

There are two types. The founders effect caused when a small group migrates from a larger group and forms a new population causing a change in the genetic pool.

Bottleneck effect is caused by the sudden reduction of population due to environmental or human activities.

The observed genetic changes in the question were due to genetic drift.

3 0
3 years ago
During exhalation the air pressure on the outside of the lungs is (greater than / less than) the air pressure
zvonat [6]

Answer:

greater than

Explanation:

hope it helps

7 0
3 years ago
Other questions:
  • Human activities are causing the fragmentation of the brazilian atlantic rain forest. one consequence is that toucans have becom
    12·1 answer
  • Can someone please write 2 paragraphs about how the world would be affected if we didn’t have season change ?
    6·1 answer
  • When the protein gramicidin is integrated into a membrane, an H+ channel forms and the membrane becomes very permeable to proton
    8·1 answer
  • Using a cervical approach, ligation of the thoracic duct was accomplished. cpt code:
    12·1 answer
  • What are the moral implications of bringing extinct species back to life?
    14·1 answer
  • What is a medical biologist
    10·2 answers
  • Nail roots are to nails as what is to hair?
    13·2 answers
  • In a frog, after the food passes through the stomach, what does it enter?
    7·1 answer
  • How long does it take for food to digest?
    15·1 answer
  • Can you please give me 5 parts of the plants? PLEASE
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!