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mash [69]
3 years ago
15

Where do scientist obtaint the majority of their modern knowledege about the history of life

Biology
1 answer:
Montano1993 [528]3 years ago
7 0

Answer:

fossils

Explanation:

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An outbreak occurs where the first case is detected on October 15th, the last case is detected on October 27th, and the peak is
aksik [14]

Answer:

12-14 october

Explanation:

The probable period of exposure is calculated as follows:

  1. Know  the range of the incubation period
  2. Start counting back from the days of the first case by subtracting the first number of incubation period range
  3. Count back the days from the last case by subtracting the last number of incubation period range.
  4. This will give a range which will be the period of exposure.

From the question,

  • Incubation period range 1-15
  • Date of first case = october 15
  • Therefore, first date of exposure = 15 -1 = 14
  • Date of last case = 22
  • Therefore, last date of exposure = 27 - 15 = 12
  • Thus, the range is 12-14 october which is the probable period of exposure.
7 0
3 years ago
Which animal lives in the hydrosphere and lithosphere? eagle duck shark lizard
nikklg [1K]
Well lets see Hydro means water so we can scratch out eagle litho is like the crust of the crust of the earth so no shark ducks are involved with water but cant get to the crust so lizard they can go on water and to the crust so lizard
4 0
3 years ago
Proteins are mostly absorbed as A. fatty acids. B. disaccharides. C. amino acids.
Rudik [331]
This is mostly absorbed as amino acids
6 0
3 years ago
Which of the following information could be included in the description of a grasshopper’s niche, but not in a description of it
Ivan

The niche of grasshopper would include the plant species it eats.

Explanation:

The niche of an organism is different to that of a habitat. A niche includes the interaction between organisms and the food that they eat, whereas, a habitat is a place where organisms are provided with food, protection and shelter.

Habitat is a place of ecosystem that involves other environmental factors like- rain, sunlight, humidity etc. So, food type eaten by grasshopper would be the description of a niche and not a habitat.

4 0
3 years ago
Rb is an important protein for controlling cell proliferation by blocking entry into S phase. How does it exert its effect?
amid [387]

Answer:

The main function of the RB protein is to inhibit the transition from the G1 to S phase. Its activity depends on its phosphorylation state: if RB is not phosphorylated (active state), it is bound to the transcription factor E2F, preventing its translocation to the nucleus and the activation of genes necessary for DNA synthesis; and if it is phosphorylated, by cyclin-CDK complexes, E2F is released and cell proliferation occurs.

Explanation:

Retinoblastoma (Rb) was the first tumor suppressor described and, as we know today, mutations in its structure determine a large number of cancers. Structurally, we speak of a large and multifunctional protein; which is organized in different domains. The activity of this protein is regulated, mainly, by phosphorylation at multiple sites described over the years and is involved in control mechanisms of the cell cycle, apoptosis and senescence.

5 0
3 years ago
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