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
stira [4]
2 years ago
15

Scientists hypothesize that there are no dinosaurs alive today because

Biology
1 answer:
bekas [8.4K]2 years ago
8 0

Answer:

Well it depends on the article you’re getting this from but some say it was a meteor and some say it was an earthquake

Explanation:

You might be interested in
What are the most likely percentages for offspring of two red/white-feather chicken parents? Hint: Complete a punnett square cro
Stella [2.4K]

Answer:

the last one

Explanation:

3 0
3 years ago
A fossil is found to have a 14c level of 67.0% compared to living organisms. how old is the fossil?
sp2606 [1]
The half-life  of carbon-14 is equal to 5730 years. The amount of substance with half-life h at any time t is equal to,
                       At = (Ao) x (1 - 0.5)^(t/h)
Substituting, 
                    At/Ao = 0.67 = 0.5^(t/5730)
The value of t from the equation is 3310.6 years. 
3 0
3 years ago
What allows nutrients to enter plants and animals and are able to be transported to different areas?
Stella [2.4K]
Cell membrane I believe
4 0
3 years ago
Which of the following statements about oogenesis is false? which of the following statements about oogenesis is false? meiosis
inessss [21]

"Meiosis II is not completed until after the egg cell makes contact with the sperm cell." This is false because, for both genders, meiosis splits into haploid cells. The end of Meiosis II would be when the four haploid cells are separated.

3 0
3 years ago
Arrange the following in the correct sequence, from earliest to most recent, in which these plant traits originated. 1. sporophy
zavuch27 [327]

Answer:

Earliest- gametophyte dominance, sporophyte dependence

Middle- sporophyte dominance, gametophyte independence

Recent-  sporophyte dominance, gametophyte dependence

Explanation:

The life cycle of plant alternates between the two phases: the haploid gametophyte which produces gametes and the diploid sporophyte which produces spores.  The evolution of land plants shows how these are dependent on each other in terms of the requirement of nutrition.

In bryophytes, the gametophyte is the dominant phase on which the sporophyte depended. Later in pteridophytes, the sporophyte became dominant which is present in the later evolved groups namely the gymnosperms and the angiosperms. The gametophyte was independent on the sporophyte but in angiosperms and gymnosperms, it is dependent.

3 0
3 years ago
Other questions:
  • which molecule is the largest role in plant phototropismA.) proteinsB.) auxinsC.) starchesD.) chlorophyll
    5·2 answers
  • List the four functions of the cell/plasma. membrane.
    14·1 answer
  • Which of the following is not a possible cause of mass extinction?
    9·2 answers
  • Describe 2 reasons why seafloor spreading and subduction must be occurring at the same rate.
    11·1 answer
  • Which of the following correctly describes the components of DNA ?
    15·1 answer
  • Which sequence accurately portrays the chronological order in which hominids evolved?. A. Homo habilis, Homo erectus, Australopi
    13·2 answers
  • A zookeeper is very upset because one of the lions jumped the fence of his enclosure and mated with a neighboring tigress. This
    9·1 answer
  • Food is a good example of _____.
    12·1 answer
  • The yeast used to make beer can perform aerobic respiration or alcoholic fermentation. When O2 is available, yeast perform aerob
    5·1 answer
  • If an organism has two different alleles for a trait, it is:​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!