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Zigmanuir [339]
3 years ago
7

Which observation would be the best evidence for a recent founder event or population bottleneck?

Biology
1 answer:
Bingel [31]3 years ago
7 0
The best evidence of such phenomena could be a population's genetic variation decrease.
When a population bottleneck occur it means that for some reason (i.e. environmental events) the size of a population is largely reduced. This leads to reduction of the genetic variation in that new smaller population. When a bottleneck occur, the founder effect is normally seen, which is that one population is established by a small group of a previously larger population leading once again the genetic variation, now though with a bigger population, to be very reduced.
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¿Por qué se denomina fenómeno complejo a la alimentación humana?
Lelu [443]

Answer:

Nutrición humana: una descripción general | Temas de ScienceDirect www.sciencedirect.com ›temas› nutrición humana

La ciencia nutricional continúa descubriendo mecanismos cada vez más complejos de cómo ... Así, la leche materna se considera un alimento completo específico de la especie (Lönnerdal, ... Si este fuera un fenómeno generalizado, podría explicar algo de la corriente.

Explanation:

6 0
3 years ago
Read 2 more answers
Axons of the nervous system are described as afferent and efferent according to the direction in which they carry information. W
Ahat [919]

Answer:

The correct option is b) motor output of the spinal cord

Explanation:

Motor neurons, also called afferent neurons, drive impulses from the brain and spinal cord to the receptors (eg, muscles). They are the motor output component of the spinal cord.

The spinal cord is a cord of nerve tissue that runs inside the spine. It conducts the nerve impulses that arrive from the receptors to the brain, and the responses with the motor orders from the brain to the effector organs. Thus, the brain receives the information and can develop an order that modifies the reflex response given by the spinal cord. A spinal nerve has two nerve roots: a motor and a sensory root. The motor root has nerve fibers that carry signals from the spinal cord, to the muscles to stimulate contraction and produce muscle movements, the fibers are efferent as they leave the medulla to the periphery through the anterior roots of the spinal nerves.

5 0
3 years ago
True or false
Juli2301 [7.4K]
It’s true i think ……..
5 0
2 years ago
When humans come to a previously pristine environment, they inadvertently bring organisms with them that can be harmful to the l
Studentka2010 [4]

Answer:

INVASIVE species

Explanation:

In biology, an organism is said to be INVASIVE if the organism is foreign to a particular region or habitat and possess the unpleasant ability to proliferate or grow rapidly to the point of competing with local species of organisms.

According to this question, humans are said to introduce organisms that have the ability to harm the local flora and fauna. Hence, these organisms are INVASIVE SPECIES because they are foreign to that place and cause damage in their new environment.

6 0
2 years ago
Translate AGU UUA GCA ACG AGA UCA
S_A_V [24]
AGU is Met or Methionine. it is a start codon to initiate translation.
UUA is Leu or Leucine
GCA is Ala or Alanine
ACG is Thr or Threonine
AGA is Arg or Arginine
UCA is Ser or Serine

8 0
3 years ago
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