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
Effectus [21]
3 years ago
15

Of all the species that have ever lived on planet earth, what percentage are now extinct?

Biology
1 answer:
erica [24]3 years ago
4 0
I think it's 90% but I am not sure.
You might be interested in
A scientist was observing a specimen under a microscope. He obtained the specimen from pond water. He observed that the specimen
Ne4ueva [31]

The correct answer is option B, that is, Ciliophora.  

Ciliophora is the term used for the phylum usually known as the ciliates. Ciliates are the most complex of cells, exhibiting an elaborate cytoskeleton, cilia, two distinct types of nuclei. Ciliates are single-celled species, which at a certain phase of their life cycle, possesses cilia, that is, short hair-like projections used for food gathering and locomotion.  


3 0
3 years ago
Read 2 more answers
How are carbohydrate polymers formed? by hydrolysis by dehydration synthesis by replication by transcription
kenny6666 [7]
I think the correct answer from the choices listed above is the second option. Carbohydrate polymers are formed by dehydration synthesis. In this process, <span>monomers combine with each other via covalent bonds to form </span>polymers<span>. Hope this answers the question.</span>
6 0
3 years ago
Read 2 more answers
True or False A type of building that absorbs the energy of seismic waves is a fixed-base building.
garri49 [273]
<span>The statement "A type of building that absorbs the energy of seismic waves is a fixed-base building." is false. Base isolated building is type of building that absorbs the energy of seismic waves. Base isolation is a standout amongst the most effective devices of seismic tremor designing relating to the detached auxiliary vibration control advances.</span>
6 0
3 years ago
What could a dog living now and a cat living thousands of years ago have in
bonufazy [111]
I think the answer is either B. or D.

mark as brainliest!
6 0
3 years ago
The higher up the food chain humans eat, the greater levels of toxic metals they take in. true false
MArishka [77]

the answer would be true because you eat more toxins the higher you go

6 0
3 years ago
Read 2 more answers
Other questions:
  • List the four macromolecules
    7·2 answers
  • A line connecting a vertex of a scalene triangle with the midpoint of the opposite side is the
    14·2 answers
  • Fewer than _____ of blastocysts inserted through ivf successfully implant into the uterus and become newborns.
    11·2 answers
  • Humans are the selective agent in which type of procces, artificial selection or natural selection
    15·1 answer
  • Jacob was reading a book about fossils. He read that fish fossils are sometimes found at the top of high mountains. What can Jac
    6·2 answers
  • What product is common to reactions in cellular respiration and fermentation? oxygen ATP glucose pyruvic acid
    12·2 answers
  • ‼️‼️Help me out pls‼️‼️
    11·1 answer
  • Using at least 3 sentences, briefly explain how crossing over, independent assortment, and random fertilization result in increa
    11·2 answers
  • When does fertilization occur?
    14·1 answer
  • Which of the following is considered to be a boundary between two different air masses?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!