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
Nady [450]
2 years ago
14

What is the function of spines on cacti

Biology
1 answer:
soldier1979 [14.2K]2 years ago
8 0

The spines of the cactus have several functions, which are the following:

To defend them from possible predators: inside the body of the plants there is a great deal of water; if herbivores could access it, these plants would not survive.

To provide them with shade: it is true that not much, but it is enough so that the loss of water by evaporation is minimal.

Reflect sunlight: many species have white spines.

You might be interested in
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:
  1. 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.
  2. 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
Which of these is a characteristic of sexual reproduction?
AnnyKZ [126]
The answer is C genetic variation
3 0
3 years ago
Read 2 more answers
How do we know if there were actually dinos on earth??
alisha [4.7K]

Answer: There are two ways to determine the age of a dinosaur fossil. One is called relative geologic time, which involves deciding whether one dinosaur fossil is older or younger than another. Geologists then measure the proportion of parent and daughter atoms present in the ash crystals to determine the crystal's age.

Explanation:

3 0
3 years ago
Being a visual learner have you got any tips on how to study science?
sukhopar [10]
Even being a visual learner the trick is to take notes, even if you never look at the notes ever again its good to write them down, you are more likely to remember something you have written down rather than to just look at it. Science is something that could be easy, you just have to take it at your own pace, don't try to learn science by giving it a quick read or glance at it.
7 0
3 years ago
The shoulder is ______ to the neck.<br><br> Lateral<br> Medial<br> Distal<br> Proximal
Travka [436]

The shoulder is Lateral to the neck.

<h3>Is the shoulder lateral or medial?</h3>

Away from the median plane of the body (ex: the shoulder is lateral to the head or the ear is sideways to the brain). Medial: toward the median plane of the body (ex: the head is medial to the shoulder or the nose is medial to the cheek).

Thus, option "A" is correct.

To learn more about  Lateral shoulder click here:

brainly.com/question/25647852

#SPJ1

8 0
2 years ago
Read 2 more answers
Other questions:
  • How does the sun produce heat and light for the earth?
    14·1 answer
  • Which of the following parts of an organism is most likely to become fossilized?
    6·2 answers
  • Match the Words chose one letter for each number
    6·1 answer
  • Why would someone who weighs 100lb on Earth only weigh 7.7 lbs in Pluto, and
    5·1 answer
  • Describe cellular respiration. How do plants and animals help each other in cellular respiration?
    8·2 answers
  • The energy from photons hitting photosystem II is used to make what product
    12·2 answers
  • Hellloooooooooooooooooo
    12·1 answer
  • Genotypes and phenotypes ​
    12·2 answers
  • Explain the importance of the surface area to volume of ratio
    14·1 answer
  • Somatic cells can also be called
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!