1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Natasha_Volkova [10]
2 years ago
15

why are you allowed to use the coarse adjustment when you focus the low power objective lens but not when you focus the high pow

er objective lens?
Biology
1 answer:
FinnZ [79.3K]2 years ago
8 0
Because you will focus past ("overshoot") your specimen. (Like using a race car as a shopping cart: it's too fast, and you'll fly past the cereal and never even see it before you realize you need to stop.) Also: you risk crushing the slide and objective against each other (on older or cheaper scopes), and that would be a costly (and embarrassing) mistake.
You might be interested in
What cellular macromolecules contain large amounts of phosphorus?
Free_Kalibri [48]
I think the answer might be Phospholipids but I am not sure
5 0
3 years ago
Which two processes allow water to enter the atmosphere?
Anna11 [10]

Answer:

Evaporation and Transpiration

Explanation:

Evaporation is the process in which water from bodies of water vaporizes and enters the atmosphere while transpiration is the process in which water from plants evaporates into the atmosphere.

6 0
2 years ago
All animals with eyes or the eyespots that have been studied so far share a gene in common. When the gene causes lack of eyes in
RSB [31]

Answer:

The correct answer is option C.

Explanation:

PAX5 refers to the member of the Pax gene family, which is, accountable for conducting the genetic information, which will encode the Pax-6 protein. It functions as a master control gene for the maturation of eyes and other sensory organs. Pax6 functions as a regulator in the formation of patterns and coordination needed for the proliferation and differentiation to take place effectively. This ensures that the procedures of oculogenesis and neurogenesis are taking place efficiently.  

The PAX6 gene was the outcome of evolution in earlier animals comprising eyespots or eyes. The similar PAX6 gene generates distinct kinds of eyes in distinct species because of the difference in its control of PAX6 expression. At the time of the evolution of vertebrates, the biological clock opsin’s rh gene was chosen as a gene for visual receptor pigments.  

8 0
2 years ago
How/why is ecosystem diversity important?
tester [92]

Answer:

Ecosystem diversity is a type of biodiversity. It is the variation in the ecosystems found in a region or the variation in ecosystems over the whole planet. Biodiversity is important because it clears out our water, changes out climate, and provides us with food.

Explanation:

4 0
3 years ago
Read 2 more answers
The incidence of Down syndrome, also known as trisomy 21, increases with increasing maternal age. Which of the following errors
Naily [24]

Answer:. Nondisjunction during meiosis I in either the male and female gamete

The failure of   homologous chromosome to separate at mitosis,  or failure of sister chromatids  to separate at Anaphase of  meiosis I or ii is called  non-disjunction.

 In this  cell division anomaly the  unsegregated chromosomes  are  separated  into  cells as single chromosomes, therefore extra copies are  therefore inherited.This  result is one of the cell having an extra copies of  chromosomes than others( chromosomes 21.

If this extra  chromosome copies  is segregated into a sperm or egg, the resulting zygote cells will   have extra  copy as  chromosome 21, and hence Down syndrome.

→It is more common in Meiosis 1 than ii,because of longer duration of the first stage of division than meiosis ii,given rooms to errors.

→Most common in women(with age increase)  than men because of exchange of telomeres in   them,which  worsen with age. Their Meiotic mechanism  which   weaken with age, and  more prone to errors compare to men,

Explanation:

5 0
2 years ago
Other questions:
  • Which feature of enceladus and europa would indicate the possible presence of life?
    10·1 answer
  • Zebras are classified as vertebrates because they have
    13·1 answer
  • _________ allows competitors to coexist.
    6·1 answer
  • Pond 1 contains 100 fish, 50 of which are tagged. Pond 2 contains 1000 fish, 500 of which are tagged. You catch 10 fish from eac
    10·1 answer
  • Donor Blood Type Recipient Blood Type A- Successful
    14·1 answer
  • Summarize what you have learned in Lesson 3.1 by answering the focus question: "What is the pattern of Earth's average temperatu
    8·1 answer
  • Which is an immune response?
    6·1 answer
  • Transform boundaries are often occurring in California. These residents must prepare for earthquakes in order to be ready! True
    13·2 answers
  • PLEASE HELPPPPP I REALLY NEED ITT
    13·1 answer
  • The study of the evolutionary history of lineages of organisms is known as.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!