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Kay [80]
1 year ago
15

When comparing dogs to wolves, scientists found evidence that supports the idea they come from a common ancestor. Which combinat

ion of evidence would most strongly support this idea?
Biology
1 answer:
Scorpion4ik [409]1 year ago
4 0

Answer:

when comparing dogs to wolves, scientists found evidence that supports the idea they come from a common ancestor. which evidence was most important in understanding this? comparable anatomies, fossils, and behavior different anatomies, similar development, and different dna comparable anatomies, similar development, and similar dna different anatomies, fossils, and behavior

Explanation:

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Plants maintain higher levels of phytochrome at their growing tips where phytochrome plays important roles in growth responses t
Naddika [18.5K]

Explanation:

Phytochrome is a protein with kinase activity present in plant organisms, whose function is to act as a photoreceptor mainly of red light (600-700nm) and distant red light (700-800nm), thanks to its chromophore. The phytochrome depending on the type of light detected can trigger different responses in the plant, such as flowering, germination, growth as an escape response to the shadow -development of epicotyls at night and cotyledons during the day-, regulation of expression of metabolic activity during day and night (circadian rhythms).

Phytochromes were discovered in the fifties as part of an investigation on the effect of light on the germination of lettuce seeds. It was observed that the seeds that germinated in the dark did not reach 20%; On the contrary, the germination percentage was maximum when the seeds were irradiated with a pulse of red light (R). It was also found that subsequent irradiation with a pulse of distant red light (RL) nullified the inducing effect of red light, preventing germination.

Alternating irradiation with light R and RL (R, R + RL, R + RL + R, R + RL + R + RL, etc.) showed that the last color applied determined the germination of the seeds and that the light red was the stimulating factor of the process and, its inhibitor, the distant red light.

In search of an explanation of such phenomena, the existence of a pigment was proposed, which they called phytochrome, which absorbed the red light. The phytochrome in question, after absorbing red light, became a way capable of absorbing distant red radiation; form that turned to its initial condition after performing said absorption. The hypothesis found experimental support in the early sixties with the purification, from extracts of cereal seedlings, of a protein endowed with the predicted characteristics. Phytochromes are soluble proteins found in the seeds, leaves, stems, roots and other organs of the plant.

Biochemically, phytochrome is a protein with a Bilin chromophore.

6 0
3 years ago
An IV drip delivers 5mL/hour to the patient. How many liters of the drug will you need to administer this drip for 24 hours?
mojhsa [17]

Answer:

.12 liters

Explanation:

if it give 5ml an hour, it would give 120ml in 24 hours which is only equal to .12 liters.

7 0
2 years ago
This is an excerpt from "When We Two Parted" by Lord Byron.
Diano4ka-milaya [45]
The main theme of the poem is the regret and sorrow the narrator feels about the end of his relationship with the woman in the poem, described only as "you." The poem suggests that the woman may well have been the one to break off the affair: Pale grew thy cheek and col
4 0
3 years ago
Drag and drop words from the boxes below to explain what the data show about the effect of the reintroduction of wolves in yello
Vera_Pavlovna [14]

I think it would become equal because the elk would have a natural predator

 

4 0
3 years ago
Innate immunity________.
labwork [276]

Answer:

The answer is A.

Explanation:

Since only 1 of the options is wrong, i assume you are looking for that one.

Two types of immunity systems, innate immunity and adaptive immunity. Adaptive immunity is formed when it is exposed to a harmful substance, vaccines for example create adaptive immunity.

Innate immunity is present at birth which consists our skin protects us physically, chemical substances in our blood that protect us from bacteria and infections and also our blood cells such as T cells.

Since innate immunity forms one of the first lines of defense in our immune system and is the first to respond to a threat in a few hours down to as little as minutes, it is not slower than adaptive immunity in its response to infections and pathogens.

I hope this answer helps.

4 0
3 years ago
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