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
baherus [9]
3 years ago
10

Which of the following was NOT a major animal on land during the Carboniferous period?

Biology
2 answers:
Leno4ka [110]3 years ago
8 0
Amphibians would be the correct answer
Karo-lina-s [1.5K]3 years ago
6 0

Answer:

Amphibians

Explanation:

They had just shown up during the Carboniferous period and were still living in the water.

You might be interested in
A geologist is studying two different rhyolite flows to determine if they were erupted at the same time.
ss7ja [257]
Q1. The answer is 1.

It can be calculated using the equation:

 (1/2)ⁿ = x

x - decimal amount remaining, 

n - a number of half-lives.


x = 50% = 50/100 = 0.5

n = ?

(1/2)ⁿ = 0.5

log((1/2)ⁿ) = log(0.5)

n * log(1/2) = log(0.5)

n * log(0.5) = log(0.5)

n = log(0.5)/log(0.5)

n = 1


Q10. The answer is 2.


It can be calculated using the equation:

 (1/2)ⁿ = x

x - decimal amount remaining, 

n - a number of half-lives.


Rhyolite #2 has 25% of the parent H remaining:

x = 25% = 25/100 = 0.25

n = ?

(1/2)ⁿ = 0.25

log((1/2)ⁿ) = log(0.25)

n * log(1/2) = log(0.25)

n * log(0.5) = log(0.25)

n = log(0.25)/log(0.5)

n = -0.602 / - 0.301

n = 2



Q3. The answer is 100 million years.


A number of half-lives (n) is a quotient of total time elapsed (t) and length of half-life (H):

n = t/H

n = 1

t = ?

H = 100 000 000 years


n = t/H

t = n * H

t = 1 * 100 000 000 years

t = 100 000 000 years<span>

</span>

4 0
3 years ago
Water enters the soil in a process called __________, and then moves downward through the soil in a process called
erastova [34]
Water enters the soil in a process called infiltration, and then moves downward through the soil in a process called percolation.
7 0
3 years ago
A horse has 64 chromosomes and a donkey has 62. Using your knowledge of meiosis, explain why a cross between a horse and a donke
nlexa [21]
Ok, so when a horse (with 64 chromosomes) is crossed with a donkey(that has 62 chromosomes), each parent give its child half of its chromosomes. [64/2=32] [62/2=31]. So the mule gets 31 pairs of chromosomes plus 32 pairs of chromosomes. That equals 63 total chromosomes. In order to be a parent, it must give <span>half of its chromosomes to its child. [63/2=31.5] You can't have half a chromosome, so the mule is a sterile organism. Let me know if you have questions.</span>
8 0
3 years ago
How do you do 1/4 and 7/8
alukav5142 [94]

the answer to your question is 1 1/8

4 0
3 years ago
What are the conditions that bacteria prefer to live in
denpristay [2]

Answer: Bacteria can live in hotter and colder temperatures than humans, but they do best in a warm, moist, protein-rich environment that is pH neutral or slightly acidic. There are exceptions, however. Some bacteria thrive in extreme heat or cold, while others can survive under highly acidic or extremely salty conditions.

4 0
3 years ago
Other questions:
  • What is the function of the structure labeled nucleus
    6·1 answer
  • Many diabetics are now using insulin that was made by certain bacteria. the ability of these bacteria to produce insulin was mos
    14·2 answers
  • Why is carbon important for forming complicated molecules?
    12·2 answers
  • These are true and false questions and I want to be sure of my answers. Please someone check. Thanks:
    15·1 answer
  • PLEASE ANSWER ASAP
    10·2 answers
  • Which of the following terms is defined as "a point of view based on personal
    12·2 answers
  • A sentence with the word habitat
    9·1 answer
  • For a prokaryotic gene, basal transcription is defined as
    7·1 answer
  • Explain three ways the human body maintains homeostasis.
    7·2 answers
  • What is happening to some of the areas that reflect back large amounts of lights?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!