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
prisoha [69]
3 years ago
5

Which is a reason that many organisms that have existed on Earth have left

Biology
1 answer:
alexandr1967 [171]3 years ago
7 0
A fossils can’t form underwater because of how much oxygen can be found in the water.
You might be interested in
What is the importance of adulthood for living things?
S_A_V [24]

Answer:

being able to become independent and start doing things you've been wishing to do as a kid :)

Explanation:

5 0
3 years ago
Question 3 (1 point)
Tema [17]

Answer: When the ball reaches the highest point and stops briefly.

Explanation: All thrown projectiles make a parabola, the peak of the parabola will have the greatest gravitational potential energy.

4 0
1 year ago
Read 2 more answers
In a certain plant, tall stems (t) are dominant to short stems (t). a farmer crosses a short-stemmed plant with a heterozygous l
melisa1 [442]

The answers would be:

Genotype                Phenotype

     Tt                      Tall stemmed

     tt                       Short stemmed

Genotypic ratio : 2:2 or 1:1

Phenotypic ratio: 2:2  or 1:1  

<u />

<u>You can read on to see how this was done:</u>

Tall stems (T) are dominant to short stems (t).

First figure out the genotypes of the parents. We have a short-stemmed plant and a heterozygous long-stemmed plant cross.

For short stem to occur, you need 2 pairs of short alleles. So the first parent would have a genotype of tt.

Heterozygous long-stemmed means that the parent has one of each allele. So the genotype of the second parent would be, Tt.

Now we can make our Punnett Square.

tt x Tt

<u>       t        t  </u>

<u>T |  Tt  |   Tt</u>

<u>t  |   tt  |   tt</u>

Let's list down the genotypes and phenotypic results.

Genotype        no.         Phenotype

     Tt                 2           Tall stemmed

     tt                  2           Short stemmed

So from that we can answer the other questions:

Genotypic ratio : 2:2 or 1:1

Phenotypic ratio: 2:2  or 1:1  

8 0
4 years ago
How did the gold that we are able to mine become part of Earth?
Montano1993 [528]

Answer:

Where to Find Gold

According to estimates, all of the gold ever mined in the history of humanity amounts to about 152,000 metric tons. This sounds like a lot, but it is only about enough to fill up 60 trailers. Scientists believe that there is still eight times more gold in and under the oceans than has ever been mined close to the planet’s surface. Like the gold that is probably floating in the Earth’s molten core, most of this supply of the precious metal is inaccessible or simply too expensive to mine. Interestingly, gold has been discovered on all of Earth’s continents except for Antarctica. Of course, it is possible that even that continent holds some gold under all of the ice.

Explanation:

4 0
4 years ago
The serum elisa test is based on interaction between
umka2103 [35]
The test is based on a microtiter plate that has a solid phase substrate (target protein, antigen) at a known concentration fixed to the plate that when exposed to an antibody that has an indicator attached (dye for color change or enzyme-labeled antibody) that can produce a color change.
6 0
3 years ago
Other questions:
  • 03]The water in a location is tested regularly to identify contaminants. The nitrate levels in the water from 1994 to 1997 are s
    5·1 answer
  • Which of the following will be true if chlorophyll is removed from the chloroplast in a plant cell?
    15·1 answer
  • A clownfish and a sea anemone what relationship is this ?
    8·2 answers
  • Which of the following pairs are the best examples of homologous structures?
    13·1 answer
  • Without genetic variation, what would the Earth be like? ​
    7·1 answer
  • Ape species began to dwindle during the Miocene, leaving only a few remaining: a situation that exists up to the present. It is
    5·1 answer
  • The process by which two species evolve in response to changes in each other over time is called
    8·2 answers
  • Which primate is least closely related to humans​
    8·2 answers
  • Which of the following is NOT a common element in the human body? Select all that apply.
    14·1 answer
  • Answer the question and ill give brainliest show your work and proof too
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!