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marysya [2.9K]
2 years ago
8

Biology help please im pretty sire its a but im not 100%

Biology
2 answers:
tatuchka [14]2 years ago
4 0

Answer:

Option D.

Explanation:

The population size is above carrying capacity, I am not 100% sure but I would go with option D. If you feel more strongly that option A. is the right answer then follow your gut.

kaheart [24]2 years ago
3 0

Answer: the correct answer its A

Explanation:

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Creationists criticize the idea of natural selection as a circular argument, or tautology, claiming "the fittest are those that
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Creationists criticize the idea of natural selection as a circular argument, or tautology, claiming "the fittest are those that survive, and survival is how fitness is defined. "

The definition of natural selection is not tautological because natural selection is measured by contribution to the next generation, not simply survival of an individual organism.

Tautologies or circular arguments are true at all times and therefore are not productive as theories since they cannot be disproved. A tautology is a statement which is true by necessity.

Natural selection is the prevalent theory which explains biological change by predicting the mechanism behind evolution.

Nevertheless, natural selection can be explained non-tautologically. It should be described as the theory which tries to speculate as well as retrodict evolutionary change by environmental forces affecting the organisms.

To learn more about natural selection here

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1 year ago
Explain the purpose of the placenta and describe how a fetus gets its nutrients.
marusya05 [52]

Answer:

The placenta is the temporary association of fetus and maternal tissue. It is meant for nutrition and transport of different substances.

Explanation:

The placenta is a temporary association of fetal and maternal tissues. The placenta is formed from the trophoblast of the blastula. These trophoblasts   form chorionic villi which later forms the placenta. The chorion and allantois also take part in the formation of the placenta. Hence, the human placenta is known as the chorioallantoic placenta. The process of formation of the placenta is known as placentation.  

The placenta has several functions but the major function is to provide nutrition to the fetus. The developing fetus gets nutrition from the mother's body by the placenta. The placenta provided with blood vessels which help in the transportation of different substances. It also helps in gas exchange between the mother and baby. Thus it plays a vital role in fetal respiration. The metabolic wastes diffuse through the placenta. Placenta also stores fat, glycogen, which participates in protein metabolism.

7 0
3 years ago
An obligate anaerobe is an organism that would die in an oxygenated environment. What could be assumed about these organisms?
artcher [175]

That they produce only through anaerobic respiration.

7 0
2 years ago
Cells in the human eye send nerve impulses to the brain that cause the pupil to constrict. this is an example of a reaction to w
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A. chemicals, the constriction of the pupil are usually caused by opiates anti-hypertension drugs.
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3 years ago
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Which organ is matched incorrectly with either its sympathetic or parasympathetic ganglion? eye - ciliary ganglion urinary bladd
omeli [17]

Answer:

Urinary bladder - superior mesenteric ganglion

Explanation:

The inferior mesenteric ganglion is located in the center of the abdomen where the inferior mesenteric artery begins. The axons of postganglionic neurons extend through the hypogastric plexus. These neurons then innervate the blood vessels of several organs like the rectum, urinary bladder, and distal colon, etc.

The postganglionic neurons from superior mesenteric ganglion innervate the blood vessels of the small intestine and proximal colon.

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