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
dusya [7]
3 years ago
10

What would be the estimated maximal heart rate for a 40-year-old?

Biology
1 answer:
stepladder [879]3 years ago
3 0

Answer:

180 beats per minute.

Explanation:

<em>Hope This Helps!</em>

You might be interested in
Which of the following is themes accurate description of how flatworms and people remove waste from their body?
oksano4ka [1.4K]

Answer:

A

Explanation:

8 0
3 years ago
Characters that provide evidence for evolutionary relationships based on shared ancestry are called ____.
Tom [10]

Answer:

Homologous characters

Explanation:

Homologous character is usually defined as those set of characters that are observed in various organisms and are similar to one another. It is because these organisms have obtained these characters from a common ancestor, having that same distinct characters.

The evolution that occurs in this type of organisms are commonly known as the homologous evolution, where the similarities between the organisms are found in terms of physiology, structure and/or other development, depending upon their common ancestors.

5 0
3 years ago
In the 1890s, Northern elephant seals were hunted almost to extinction. An unknown population of less than one hundred animals m
Inga [223]

Complete question:

In the 1890s, Northern elephant seals were hunted almost to extinction. An unknown population of less than one hundred animals managed to survive on the tiny island of Guadalupe off of Mexico. The current population of over 100,000 is thought to be derived from that tiny remnant population. Compared to the Southern elephant seals (which did not experience such a bottleneck), the Northern elephant seals likely have -------- (Lower - Higher) genetic diversity and -------- (Lower - Higher) levels of genetic diseases.

Answer:

In the 1890s, Northern elephant seals were hunted almost to extinction. An unknown population of less than one hundred animals managed to survive on the tiny island of Guadalupe off of Mexico. The current population of over 100,000 is thought to be derived from that tiny remnant population. Compared to the Southern elephant seals (which did not experience such a bottleneck), the Northern elephant seals likely have Lower genetic diversity and Higher levels of genetic diseases.

Explanation:

Genetic drift is the random change that occurs in the allelic frequency of a population through generations. The magnitude of this change is inversely related to the size of the original population. These changes produced by genetic drift accumulate in time. Eventually, some alleles get lost, while some others might set. Genetic drift affects a population and reduces its size dramatically due to a disaster or pressure-bottleneck effect- or because of a population split -founder effect-.

In the exposed example, extensive hunting acted as a pressure that reduced the number of Northern elephant seals to fewer than 100. This population experienced one or many generations of small size since these animals were affected by hunting. As the survivors did not have the whole genetic pool of the original population,  the population size might have recovered to a current population size of 1000,000 individuals, but <u>the genetic pool might have not</u>. When the small population increases in size, it will have a genetically different composition from the original one. In these situations, there is a<u> reduced genetic variability</u>, with a possibility of developing a peculiar allelic component. If the survivors in the population carried or developed a mutation, probably this mutation passed from generation to generation. It will involve more individuals each time and<u> increase the probability of developing a genetic disease</u>.

4 0
3 years ago
What do you think makes an argument stronger? Explain 1- 2 things that would make an argument stronger and more believable?
OLEGan [10]

Answer:

a diagram, speech photos and classifications

Explan

3 0
2 years ago
Read 2 more answers
If humans have feelings about someone they have lost, Do you think animals would feel the same?
mestny [16]

Answer:

yes

Explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • What is the difference between a carbon footprint and an ecological, or global, footprint?
    7·2 answers
  • Over a lifetime, a diet high in cholesterol can cause blood vessels to become less elastic. WHICH CAN LEAD TO HIGH BLOOD PRESSUR
    8·2 answers
  • Aldosterone increases the __________ of sodium ions bringing more back into the blood
    11·1 answer
  • The mutagens that result in cancer damage DNA by
    9·2 answers
  • Suppose a fungus destroys the central xylem and phloem tissues in the roots of a tree. What function of the root system will be
    6·2 answers
  • What characteristics do only vertebrates have?
    9·1 answer
  • A scientist discovers a fossil of an animal and places it in the fossil record. The organism’s bones are similar to the bones of
    8·1 answer
  • Which of these conditions is least likely to cause a species to become extinct due to environmental changes?
    11·2 answers
  • What is a biotic factor at a beach?
    10·1 answer
  • Plz help 50 points<br>the question is in the screenshot ​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!