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postnew [5]
3 years ago
7

How have frogs evolved from 500 mpa to 250 mya?

Biology
1 answer:
Zolol [24]3 years ago
7 0
They reproduce over the years making it less frog to survive
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If a pea plant has the two alleles YY.<br> What is its genotype?
Lana71 [14]

Answer: Its genotype is YY Homzygous Dominant with the yellow seed phenotype.

Explanation:

5 0
2 years ago
Emma believes it is important to consider the influence of our brain, genes, thoughts, feelings, family, and culture on our beha
Pavel [41]

Answer:

Answer is Biopsychosocial perspective.

Explanation:

The biopsychosocial model is a method of adopting the biological factor[ e.g brain], psychological factor [ emotions or behaviors], and sociological factor [culture or family], which are affecting individual to find out how and why disorders occur.

This method of using biopsychosocial model is known as the biopsychosocial perspective.

3 0
3 years ago
Why do animals exist in various species
Lady_Fox [76]
Evolution. over time animals have evolved unique traits that make them distinct from other species.
7 0
2 years ago
Ellis-van Creveld syndrome is a form of dwarfism that is inherited in an autosomal recessive pattern. This particular form of dw
jenyasd209 [6]
A) A textbook definition would be that genetic drift is: a random change in allele frequency caused by a series of chance occurences that cause an allele to become more or less common in a population. In layman's terms, this means that genetic drift happens when luck makes the genetic pool of the population to deviate from what is expected.
B) The cause for this genetic drift is the aformentioned couple. Because amish communities are small and they select partners from their community, having even a couple of carriers of alleles in a community can make the allele freuency much larger than expected; for example, if the community was 100 persons, the percentage would be in the order of 1%, still much larger than the general population. Thus, the cause here is that a small population had a couple of carriers.
C) Sexual reproduction leads to a mixing of alleles from both mother and father and helps diversity. When a population is isolated, the gene pool is fixed and no new genes can come in, reducing diversity. Also some people that have an allele might die, hitting diversity even more. Finally, having a small population creates a strong pressure in some circumstances that leads to elimination of some traits and diversity.
7 0
3 years ago
The vestibular system is the only sensory system to send projection fibers directly to the cerebellum.
Greeley [361]

Answer: False

Explanation:

The above statement is false as, cerebellum receives the projection fibers from the other sensory system in which they are received in the different part of cerebellum. As, the cerebellum received the information from the sensory system and the spinal cords and also in the other part of the brain as it regulates in the movement of the motor.

3 0
3 years ago
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