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
il63 [147K]
4 years ago
15

I need help please! Thank you so much

Biology
1 answer:
Naya [18.7K]4 years ago
5 0

B. Gradualism

"Gradualism is an evolutionary model that refers to the tiny variations in an organism or in society that happen over time to make a better fit for animals and humans in their environment. These variations allow them to survive and thrive, resulting in the slow and consistent process of change in the whole population."

You might be interested in
What are the ACSM recommendations for cardiovascular health?
forsale [732]

Answer:

C. 30 min minutes a day 5 days a week of moderate-intensity exercise or 20 minutes a day 3 days a week of vigorously intense exercise

Explanation:

The combination of aerobic and muscle-strengthening physical activity is crucial for a healthy lifestyle. Regular physical activity can help to reduce the risk of cardiovascular and chronic diseases, disability and premature mortality.  

Adults need a moderate physical aerobic activity for a minimum of 30 minutes 5 days a week or 20 minutes of vigorous-intensity aerobic activity. A combination of these two can be done to achieve this goal.

A moderate-intensity physical activity, like <u>fast walking</u>, should produce a noticeable rise in heart rate and breathing. On the other hand, a vigorous-intensity activity, like <u>running</u>, should produce a large and bigger change in heart rate and breathing.

The muscle-strengthening activity, should be performed for a minimum of 2 days a week on two or more nonconsecutive days.

3 0
3 years ago
Which best compares the respiratory system to the circulatory system?
andrew11 [14]

Respiratory system is refers to as the organs which are involved in breathing such as nose, throat, larynx, trachea, bronchi, and lungs. It is also known as respiratory tract.

The  circulatory system  is refer to as which contains the heart and the blood vessels and blood moves throughout the body in vessels. This circulatory system helps tissues to get enough oxygen and nutrients, and it helps them get rid of waste products.

<h3></h3><h3>What is breathing?</h3>

When person inhale (breathe in), air enters in the lungs, and oxygen from atmosphere moves to body blood. At the same time, carbon dioxide, a waste gas, moves from blood to the lungs and is exhaled (breathed out).

Breathing process is known as gas exchange which is is essential to life.

For more information regarding breathing, visit:

brainly.com/question/15001725

#SPJ

8 0
3 years ago
Which statement best describes a human influence on the biogechemical cycles
Temka [501]

Answer:

Increased eutrophication caused by high levels of nitrogen and phosphorous

Explanation:

5 0
3 years ago
Which of the following formulas, when evaluated using rational values for the variables, will result in an irrational number?
GrogVix [38]
I think the answer would be : A. the formula for the area of a circle

We need pi to calculate the area of a circle. Pi is equal to 22/7 , which is a famous irrational number because the division will meet no end

Hope this helps
4 0
3 years ago
Which best depicts the data?
Delvig [45]

Answer:

Elan accelerated faster than Anna 80% of time in those 10 seconds.

6 0
4 years ago
Other questions:
  • The fuel most commonly used in fission reactions is _____. Pu-239 Np-239 U-235 U-238
    5·2 answers
  • What is the name for a mass of fish eggs
    12·2 answers
  • Look at the two plants in the photo. Make a claim about what happened to the plant on the left. Provide evidence to support your
    9·2 answers
  • The bacteriologist Sir Alexander Fleming was engage in the study of staphyococcus a kind of bacteria that wa being grown in petr
    7·1 answer
  • A healthy six-month old Infant was visiting her grandparents in late 2010. Upon returning home, she developed a slight dry cough
    7·1 answer
  • Scientists are sure that having 2 heads is only caused by a genetic<br> mutation.<br> true<br> false
    9·1 answer
  • if bases on a mRNA strand (codon) AUA then the three bases on the molecule ( anticodon) would be what?
    5·1 answer
  • WHAT ARE THE DIFFERENCES BETWEEN TEMPORARY AND PERMANENT CHANGE
    10·2 answers
  • (WILL GIVE BRAINLIST) A student investigated the effect of root space on plant growth. The student grew two groups of plants of
    6·1 answer
  • CORRECT ANSWER GETS 15 points
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!