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
stepan [7]
3 years ago
15

Your, mouth, esophagus, stomach, and intestines help to form which of the following? A: cell be: tissue C: organ or D: organ sys

tem
Biology
2 answers:
Furkat [3]3 years ago
8 0
They help form D organ system which is the
digestive system 
astra-53 [7]3 years ago
8 0
All these things are the form of the organ system.
You might be interested in
In the F1 generation of a Mendelian cross,
Flura [38]
In the F<span>1 </span>generation of a Mendelian cross,
only the dominant trait is visible.only the recessive trait is visible.neither the dominant nor recessive trait is visible.<span>both the dominant and recessive traits are visible.

-I believe the correct answer is "ONLY THE DOMINANT TRAIT IS VISIBLE" in F1 generation, it is when the two true breeds, both homo (same genes) cross for example, HH and hh, since H will always be present in a punnet square, the answer is ONLY THE DOMINANT TRAIT IS VISIBLE. key word VISIBLE, the dominant trait is H</span>
7 0
4 years ago
Read 2 more answers
In a hypothetical population of 2500 people, 2275 people have brown eyes and 225 people have blue eyes (the homozygous-recessive
aev [14]

Answer:

In the next generation of 4000 children, 1680 of them will be heterozygous for the eye colour.

Explanation:

There's a population of 2500, 2275 of with have brown eyes and 225 blue eyes. <u>Let's call the dominant allele associated with brown colour "B" and the recessive allele associated with blue colour "b"</u>. So the possible genotypes are BB, Bb and bb, being BB and Bb brown eyed individuals and bb blue eyed individuals.

If the population it's in Hardy-Weinberg equilibrium, it means genotypic and allelic frequencies don't change from one generation to the following.

From the information given, we can calculate both allelic and genotypic frequencies.

First, we know that the frequency of the genotype bb it's the amount of blue eyed individuals over the total population.

  • f(bb)=225/2500=0.09

Additionally we know the allelic frequencies can be related to the genotypic ones when the population it's in Hardy-Weinberg equilibrium. Particularly we can say:

  • f(bb)=[f(b)]^2 => f(b)=[f(bb)]^(1/2)= 0.3 <em>(square root of f(bb)).</em>

Also, we can calculate the frequency of the B allele, as the probability of all alleles of the gene sum 1. In other words:

f(b)+f(B)=1 => f(B)=1 - f(b) = 1 - 0.3 = 0.7

So far, we have calculated the allelic frequencies, f(b)=0.3 and f(B)=0.7.

Now we can calculate the genotypic frequencies, using the equations of the Hardy-Weinberg equilibrium.

  • f(bb)=[f(b)]^2 => f(bb)=0.3^2=0.09
  • f(Bb)=2*f(B)*f(b) => f(Bb)=2*0.7*03=0.42
  • f(BB)=[f(B)]^2 => f(BB)=0.7^2=0.49

Finally, knowing that there are 4000 children in the next generation, to know how many of them are expected to be heterozygous for the eye colour, we should multiply the number of children for the probability of being heterozygous for the eye colour (which is the genotypic frequency for the genotype Bb).

  • Nº of heterozygous individuals = f(Bb)*total population= 0.42*4000
  • => Nº of heterozygous individuals =1680

<em />

3 0
3 years ago
Where does light dependent Reaction and the calvin cycle take place
Fittoniya [83]
Hello,


It usually takes place in the other countries not in the USA.


Hope this helps
4 0
3 years ago
An increase in venous return _______. occurs during exercise results in decreased preload decreases edv occurs with severe blood
e-lub [12.9K]
What are the choices??????
3 0
3 years ago
Read 2 more answers
Are forest the only carbon sinks?
kogti [31]

Answer:

The main natural carbon sinks are plants, the ocean and soil.

8 0
3 years ago
Other questions:
  • Which would be warmer, the water in the surface zone of the ocean 200 miles north of the equator, or 2,000 miles north of the eq
    8·1 answer
  • Why does a<br> vestigial pelvis show that<br> the ancestors of the modern<br> whale once had legs?
    5·1 answer
  • As part of their normal function, many proteins bind to DNA briefly and then release it again. Which types of bonds might be inv
    10·2 answers
  • What type of soul is the most permeable
    14·1 answer
  • During photosynthesis, plant leaves take in carbon dioxide through what in their leaves?
    6·1 answer
  • Genetics is defined as ___
    13·1 answer
  • If a control group is not included in experiment it would be difficult to
    11·1 answer
  • Are all cells the same size?
    15·2 answers
  • 3a. Which paragraph is best illustrated by<br> the image?
    5·1 answer
  • Drag each tile to the correct box
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!