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
Basile [38]
3 years ago
5

Only right aortic arch present is (a) Reptiles (b) birds (c) mammals (d) all of these​

Biology
1 answer:
Andre45 [30]3 years ago
4 0
The answer is B. Birds
You might be interested in
Help me with this question
Gwar [14]
One reason why a species may go extinct is due to environmental changes. For example, if a environment undergoes deforestation / wild fires it’s environment will no longer be grassy green and would not allow for an animal like the Japanese rat snake to use its green coloring to camouflage from predators
8 0
2 years ago
Read 2 more answers
Pseudohypertrophic muscular dystrophy is an inherited disorder that causes gradual deterioration of the muscles. It is seen almo
tankabanditka [31]

Answer:

This disorder is caused by a recessive allele, its inheritance is sex-linked.

Explanation:

The disorder affects boys born to unaffected parents, this means that at least one of them has to be a carrier of the allele which causes the disease. So, if the allele was dominant, it would express in parents and sons. But, in this case, only is expressed in sons, so it can´t be dominant. Moreover, this condition has a sex-linked inheritance because it is always seen in boys and never in girls. This happens due to boys only have an X chromosome, so if they inherit the recessive allele of the disease, they will express it. On the other hand, girls have two X chromosomes, so if they inherit one copy of the recessive allele, they will be carriers and they won't be affected.  

This disorder is never seen in females because they need to have two copies of the recessive allele. However, to have double copy, they should inherit one copy from their mothers and one copy of their fathers, but boys with the allele are affected and they die in early teens without having progeny.  Therefore, a girl can't have a "carrier-father", so they will never have two copies to express the disorder.

8 0
3 years ago
Why does estrogen most likely need to increase blood flow in a pregnant woman's body?
omeli [17]

Answer:

So blood can reach the fetus

Explanation:

3 0
3 years ago
What is the product P? A) Energy B) Glucose C) Hydrogen D) Nitrogen
Pachacha [2.7K]

Answer:

Glucose is the product

4 0
3 years ago
Read 2 more answers
PLEASE HELPPPPP I WILL GIVE BRAINLIEST
Nostrana [21]

Answer:

The correct answer is - because 3×3×3 has the highest Surface area to volume ratio, diffusion in and out of the cell would be faster.

Explanation:

It is known that if the size of a sphere or cell increases, the volume is a cube, and the surface area is squared therefore volume increases faster than the surface area. If the volume is more and the surface area is less than diffusion will be less effective. diffusion takes longer and is less effective.

The decrease in the surface-to-volume ratio leads to diffusion to get less efficient. The Surface-to-volume ratio of a sphere decreases as the sphere gets bigger.

8 0
3 years ago
Other questions:
  • Why do most rivers carry more water in the spring? (2 reasons)
    5·2 answers
  • Describe a situation when the intake of a phytochemical supplement or a functional food would be appropriate. give reasons for u
    11·1 answer
  • I NEED A acrostic poem for THE 6 stages of Mitosis
    14·1 answer
  • A genotype 'aa' leads to albinism in peacocks. This condition is very rarely found in nature, compared to the normal genotype, '
    12·2 answers
  • The female with this karyotype would have which genetic disorder? A. Klinefelter's syndrome B. Turner's syndrome C. trisomy-21 D
    11·1 answer
  • Which two samples are most likely to have come from the same person
    6·2 answers
  • List the 4 main components that make up the blood
    10·2 answers
  • Paula finds four unlabeled containers of clear, odorless liquid in her laboratory storage. One of the containers holds water. Sh
    8·2 answers
  • Introduction : Scientists who study earth's layers are called geologists. Since they cannot see inside the earth, they use geolo
    6·1 answer
  • Cuando un organismo se alimenta de otro se le conoce como:
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!