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
Vlada [557]
3 years ago
11

Why do you think species become extinct?

Biology
2 answers:
Strike441 [17]3 years ago
6 0
There are lots of different reasons y
alekssr [168]3 years ago
3 0
There are many different reasons for species becoming extinct: 

<span>- They may be hunted to extinction by predators. See the Dodo for more information on this. </span>

<span>- Their have to compete with 'foreign' species for food or habitat. This happens on many small islands when new predators are introduced. See rats and cats introduced to Hawaii by sailors. </span>

<span>- They may require very specialised living conditions which dissapear due to a changing environment. </span>

<span>- Disease or inbreeding reduces their numbers to unsustainable levels. </span>

<span>- An outside event may create a catastrophic situation. See the meteor that caused the extinction of the dinosaurs. </span>

<span>It matters because we are all part of the Earth's ecosystem. Imagine all plants and animals on earth linked together in a giant 'web'. Plants are eaten by insects. They are then eaten by larger animals which are in turn eaten by humans. As humans we are at the top of the food chain so may not notice too much as we can eat a lot of different foods. However other may animals depend on very specific prey. Extinction of a species is like removing a section from the 'web'. It has a knock-on effect on everything linked to it. </span>

<span>Also from a different viewpoint, biodiversity (many different species) of the Earth makes the place interesting. It may not affect our ability to survive if species become extinct, but the world would become a lesser place and slightly less entertaining.</span>
You might be interested in
Help biology!!!!!!!!!
adoni [48]

Answer:

I really don’t know

Explanation:

4 0
3 years ago
State two ways in which endocrine glands and exocrine glands differ.
denis-greek [22]

Answer:

The two major differences lies in the function and support system.

Explanation:

The two major differences between an endocrine and an exocrine system are as follows –  

a) An endocrine system releases its produce (hormones) into the connective tissue i.e blood while the exocrine system releases hormones directly into the ducts so that it could reach the targeted tissue directly.  

For example – the Adrenal gland is an endocrine gland that secretes adrenaline directly into the blood. The salivary gland is an exocrine gland that releases its produce into the collecting duct leading to mouth. However, Pancreas is both endocrine and exocrine gland.

b) The endocrine system cannot work alone therefore it works in coordination with the nervous system to control actions and balance the body. However, the exocrine system works independently

.

5 0
3 years ago
How is HIV contracted, and what are the treatment options?
Katena32 [7]

I believe the correct answer is: HIV is spread during unprotected sex or through contact with infected blood; it cannot be cured, but early treatment can minimize the long-term consequences.

<h2>Explanation:</h2>

Human Immunodeficiency Virus is a type of virus which causes an impairment of the immune system of the person making them susceptible to diseases such as tuberculosis, influenza and any other disease that can exploit this opportunity. It is spread by a person coming into direct contact with infected bodily fluids such as saliva during deep kissing, semen during intercourse, blood after an accident or even fluids when sharing needles and syringes for drug addicts. There is no cure but the current form of treatment slows down the virus to prevent some consequences.

<h2>Further Explanation:</h2>

The virus is enters the body through open wounds or surfaces such as the vagina or mouth where the skin is very thin and can tear. After penetrating the skin, it attaches to specific immune cells called CD8+ T-cells on points called receptors. It then enters the cell and replicates itself in the nucleus of the cell and as it goes out, it kills these immune cells making the person to have a weak immune system. The current drugs used called AntiRetroVirals (ARVs) such as the drug Zidovudin stops the virus from replicating thus reducing the total amount of virus in the body called the Viral Load. Some drugs target enzymes called proteases and reverse transcriptase that help the virus to replicate. This viral load is what is counted to estimate the total volume of HIV someone has in their body. Infected persons should use protection while having sex and also avoid sharing sharp objects to prevent transmission. They also need to take their medication to make them much more healthier in addition to taking proper balanced diets.

Level: High School

Subject: Biology

Topic: The Immune System

4 0
3 years ago
Read 2 more answers
Question 16
borishaifa [10]

Answer: a compound known as calcium carbonate (CaCO3)

Explanation: Google the question itself

6 0
3 years ago
Citing three pieces of evidence, identify and describe the biome we live in here in Bowling Green/Warren Co Kentucky. When descr
defon

Answer:

In Bowling Green, the summers are hot and muggy, the winters are very cold, and it is wet and partly cloudy year round. Over the course of the year, the temperature typically varies from 28°F to 88°F and is rarely below 13°F or above 95°F.  

Based on the tourism score, the best times of year to visit Bowling Green for warm-weather activities are from mid May to late June and from late July to late September.

8 0
3 years ago
Other questions:
  • Differential survival and reproduction of individuals in response to environmental pressure that leads to changes in allele freq
    10·1 answer
  • Color blindedness is a sex-linked trait. If we could see the pedigree chart for several more generations of the family illustrat
    9·2 answers
  • What farming method is used in dry or desert areas?
    11·2 answers
  • What is the optimum temperature for clam development?
    8·1 answer
  • this is the process of making a process of making a prediction based on the results of prior observations of similar events.
    5·2 answers
  • Which of these has the greatest density ?
    10·1 answer
  • Will mark as brainiest!
    7·1 answer
  • The author writes, “Gerardo Ceballos, a researcher at the Universidad Nacional Autonoma de Mexico in Mexico City, acknowledged t
    11·1 answer
  • The new Hazard Communication Standards provide teachers and students the right to __________ chemical hazards.
    15·1 answer
  • If this strand of DNA was used what would be the complementary DNA produced CGA CT
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!