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
CaHeK987 [17]
3 years ago
8

What happens to the abundance of angiosperm and gymnosperm pollen fossils at the kt boundary?

Biology
1 answer:
dimaraw [331]3 years ago
3 0
The KT boundary marks a mass extinction event. the KT boundary is the time between the Cretaceous and Tertiary periods. An asteroid hit the earth at the end of the Cretaceous and that caused the end of the Cretaceous period. Before the KT boundary, pollen from angiosperms and gymnosperms is high. After the meteor hits the earth, a mass extinction occurs and the amount of pollen from gymnosperms and angiosperms decreases dramatically, while the amount of spores from ferns increases. During the Cretaceous period there were many species of gymnosperms and angiosperms but they disappeared at the KT boundary, when the asteroid hit the earth. 
You might be interested in
An organic molecule contains carbon atoms. true or false
Roman55 [17]

Answer: i’m pretty sure that it does contain carbon atoms

Explanation: most organic compounds contain a significant amount of carbon

7 0
3 years ago
Read 2 more answers
2. The graph represents changes to two jackrabbit populations in two different areas over 15 years.
wel
Area a because it experienced a growth from 0 to 15 in 5 years while area b experienced a growth of growth 10
8 0
3 years ago
During the calvin cycle, carbon dioxide is _____ to drive the formation of sugars. see section 10.4 ( page 224) .
wlad13 [49]
<span>During the Calvin cycle, carbon dioxide is reduced to drive the formation of sugars.
During the process of photosynthesis, a set of chemical reaction that occurs in the chloroplast is known as the Calvin cycle, which is light independent.
Photosynthesis reaction can be divided into two stages that are the light reaction and the Calvin cycle, in the first stage light energy converted to the chemical energy and the second stage use the products of light reaction to produce sugar.
</span>
5 0
3 years ago
What are the characteristics of a multi celled organism
vlabodo [156]

Answer:

Multicellular organisms are made of more than one cell and are complex organisms.

They are visible to the naked eye.

They possess distinct organs and organ systems.

They are eukaryotes, i.e., they contain membrane-bound structures.

Their cells exhibit division of labor.

Their size increases with the number of cells in an organism

Explanation:

4 0
3 years ago
What's the opposite of 0.5
lions [1.4K]
The answer would be -0.5
5 0
3 years ago
Other questions:
  • How can a florist make long-day plants flower in the greenhouse at a time of year when there are shorter days and longer nights?
    14·1 answer
  • Compare hydrolysis carbonation and oxidation
    8·1 answer
  • Which represents the most accepted form of scientific ideas
    14·1 answer
  • 7 is what on a pH scale
    8·1 answer
  • Characteristics of living things of rabies
    12·1 answer
  • What quantity can tell you wether a solution is acidic or basic
    9·1 answer
  • In mitosis, the cellular DNA is DUPLICATED, in order to make a copy of itself. True or False, AND explain
    9·2 answers
  • Need help it’s science
    8·2 answers
  • True or false: autosomes are sex chromosomes
    13·2 answers
  • A group of friends wants to go to the amusement park. They have $169.50 to spend
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!