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GuDViN [60]
3 years ago
12

Lamarck's ideas on evolution were adopted by some Russian scientists, including Michurin and Lysenko in Stalinist Russia. Their

textbooks printed Lysenko's assertions that a wheat plant could be made cold-hardy by conditioning in cold storage, or that workmen who develop strong muscles due to working in the mines would produce children who would be born stronger. Which of the major elements of evolution by natural selection is violated by these examples?a. The organisms vary in traits.
b. The variation is inherited.
c. More young are born than can survive.
d. Some individuals are better adapted to the environment.
Biology
1 answer:
Nastasia [14]3 years ago
4 0

Answer:

yes or no ok

Explanation:

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Marat540 [252]

Urine Specimen must be chilled if testing will not be performed immediately.

<h3>What is Urine?</h3>

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Many by-products of cellular metabolism, such as urea, uric acid, and creatinine, are nitrogen-rich and must be removed from the bloodstream. These by-products are excreted from the body through urination, which is the major way for excreting water-soluble compounds. A urinalysis can identify nitrogenous wastes in mammals.

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5 0
1 year ago
Which would be an adaptation in a very cold place, but not in a rainforest?
zysi [14]
Answer: The adaptations like paddy feet and fur on the outer body is an adaptation for very cold place but not for the rain forest. Explanation: If the outer body of the organism is made of fur then it will protect the inside body from cold and will provide warmth.
4 0
3 years ago
Which of the following does not characterize the lungs of birds?
kompoz [17]

Answer:

C) They are compressed during inhalation.

Explanation:

Birds breathe through rigid lungs that are located in the animal's thoracic region. The trachea of birds divides into bronchi that branch inside the lungs into very thin tubes called parabronchials or parabroncholes, which are irrigated by blood capillaries that allow gas exchange.

In birds there are no pulmonary alveoli (as in mammals), but air capillaries that depart from the parabroncholes. Oxygen gas passes from these capillaries to the blood capillaries, thus causing gas exchange.

In the lower portion of the bird's trachea, before branching the bronchi, we can find the syringe, a bag-like structure that has vocal cords responsible for the birds' scream and song. Most of the time, the sound emitted by birds serves to attract the mate, mark territory and prevent birds of the same species against some predator or other danger.

8 0
3 years ago
Organisms with advantageous adaptations are more likely to survive and reproduce than organisms without the advantageous adaptat
expeople1 [14]

Natural selection refers to the phenomenon by which the species in a population possessing the tendency to get adapted in a condition enhance in numbers in comparison to those who exhibit fewer adaptation capacities over a number of generations.  

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These are heredity, reproduction, variation in individual characters, and variation in the fitness of organisms among the members of the population. If the conditions are met, then the phenomenon of natural selection occurs by default.  


5 0
3 years ago
The bases of RNA are the same as those of DNA except that RNA has _______.
Pavlova-9 [17]
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7 0
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