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
nikklg [1K]
3 years ago
11

When do the first land vertebrates appear in the geologic time scale?

Biology
1 answer:
sertanlavr [38]3 years ago
8 0

Answer:

About 450 million years ago

You might be interested in
What is the function of cellulose in plants
AveGali [126]

Cellulose helps make a plant strong and stiff, so it doesn't bend and break. It is in a plants cell walls.

7 0
3 years ago
Read 2 more answers
Why must the astrolabe be lined up with north?
Fantom [35]
Hello Ranjayarul1, why must the astrolabe be lined up with north, to measure azimuth.
3 0
3 years ago
Which of the following processes is LEAST directly influenced by adrenergic drugs?
devlian [24]

Answer:

c. enzymatic breakdown of food molecules

Explanation:

For adrenergic drugs active the nervous system i.e. sympathetic also it directly related to digestive enzymes, rise the blood glucose that results in blood vessels dilation that aids delivery of nutrient and tissues.

But it does not directly affect the digestive enzymes activity after considering the secreted

Therefore in the given case, the option C is correct

3 0
3 years ago
After which event could you say with most certainty that evolution has occurred
slamgirl [31]
Reinassans. people left their nobles and started to become independant. this lead to buissens,trade,exporlation and discovery.    sorry about my spelling.
7 0
3 years ago
Matter that organisms require for their life processes are called
kotykmax [81]

Matter that organisms require for their life processes are called nutrients

7 0
4 years ago
Other questions:
  • The horizontal axis of the cladogram depicted below is a timeline that extends from 100,000 years ago to the present; the vertic
    14·1 answer
  • The speed at which the arterial solution enters the body is termed
    12·1 answer
  • Which property of water remains unchanged when it recycles in the atmosphere
    10·1 answer
  • create a Six Word Story. USING ONLY 6 WORDS, create a "story" or sentence that summarizes how all of the levels relate to each o
    13·1 answer
  • Which partly explains why the domestication of animals tended to increase the human food supply?
    14·1 answer
  • How is a sky full of clouds represented in a weather map?
    10·2 answers
  • Which of the following could be found on either public or private land?
    15·2 answers
  • What are some similarities and differences between how mammals and other kinds of animals reproduce?
    9·2 answers
  • A lending library has a fixed charge for the first three days and an additional charge for each day thereafter. Saritha paid ₹27
    15·1 answer
  • Guys how to convince my dad to give me money
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!