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
pickupchik [31]
3 years ago
7

A species of cactus has spines. How would biologists explain how a species of cactus with spines evolved from an ancestral cactu

s species without spines ?
Biology
1 answer:
sergejj [24]3 years ago
8 0

Answer:

It needs the spines for protection

Explanation:

The cactus would develop the spines as a form of protection to protect itself from being consumed and to survive longer.

You might be interested in
What is the main difference bwtween prokaryotic and eukaryotic cells​
Ymorist [56]

Prokaryotic Cells = do not have a nucleus; generally smaller and simpler that Eukaryotic cells.

-Smaller

-does NOT have a Nucleus

-translates to ‘no Nucleus’ OR  ‘no true Nucleus’

-simpler

-they don't have all of their genetic material bound in a nucleus, which is why they are simpler forms of life.

-Prokaryotic cells do have genetic information but it is just stored differently

Ex: Bacteria and Single-Celled organisms

Eukaryotic Cells = Contains a Nucleus and are usually larger and more complex than a Prokaryotic cell

-Bigger

-DOES have a Nucleus

-More Complex

-Specialized to do certain things

Ex: All the Cells in a Human’s body. Skin cells, Red Blood cells

7 0
3 years ago
Help please answer fast!!!
Murljashka [212]

Answer:

A graph not only depends on the data that we are graphing, there are other important factors such as the units we use (here we have °C vs years, but we could have °F vs days and we would see a different graph, which represents the exact same information) , the scale we use (a lot of graphs are misleading because of the use of logarithmic scales, we need to be clear about the scales we use), where we put the zero of each axis (We usually use the intersection of both axes as the (0, 0) point, but this is not a necessary condition, we could manipulate our coordinate axis as we want) , etc.

So there are a lot of things that can impact on how we see the graph of the same data.

About the second answer, one could interpret from that graph that the actual temperature between the years 1880 and 2020 was around 14°C.

5 0
2 years ago
Which of these describes transport that uses no energy but requires helper proteins?
poizon [28]
This is called secondary active transport

7 0
3 years ago
Read 2 more answers
Megan is performing an experiment in her biology lab. She drops a glass pipette full of an unknown substance on the ground. The
Harlamova29_29 [7]
<span>First, he should inform all the people who might be in the building to quit immediately.

 Since the content which was in the pipette is not known they vacate and let the investigation to be carried out.
 If the content is known, then the procedure on how to lean up the mess is carried out. After that people can go back to their normal duties.</span>
5 0
3 years ago
Read 2 more answers
When writing a binomial name, it is usually entirely
worty [1.4K]
Yes it is it usually
entirely
6 0
3 years ago
Other questions:
  • In one to three sentences, describe what happens during the regeneration stage of the Calvin cycle.
    9·2 answers
  • Elements are classified on the periodic table of elements, it can be classified as:
    8·1 answer
  • Which of the following is not part of the role of a forester?
    15·2 answers
  • Consider the following: At 8:00 PM, a diabetic is found to have a blood pH of 7.33. His brain tells his diaphragm to contract mo
    7·1 answer
  • Which is the best way to prevent infection from<br> e.coli polluted water?
    5·1 answer
  • If a child cannot maintain her balance, control her motor behavior, or coordinate her eye movements with bodily sensations, whic
    11·1 answer
  • A new island forms due to an underwater volcano. Birds from the mainland colonized the island. This is an example of
    10·2 answers
  • Match each characteristics to the type of protist it describes
    8·1 answer
  • Scarlet gilia (Ipomopsis aggregata) usually has red flowers in an inflorescence of up to 250 flowers. In certain populations in
    7·1 answer
  • What is intestine<br><br><br>I will mark u as brainlist ​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!