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
Readme [11.4K]
4 years ago
13

Plz tell me what is the Lacrimal Punctum?

Biology
1 answer:
Alexandra [31]4 years ago
4 0
Inside portion of the eye they function to collect tears produced bty the lacrimal glands.
You might be interested in
Importance of transport system in plants​
Tems11 [23]

Answer:

No heart, no blood and no circulation, but plants do need a transport system to move food, water and minerals around. They use two different systems – xylem moves water and solutes from the roots to the leaves – phloem moves food substances from leaves to the rest of the plant

6 0
3 years ago
1. Clasifica las siguientes sustancias según se trate de nutrientes o productos resultado de la nutrición animal. Razona tu resp
Stolb23 [73]

Answer:

1. Nutrientes:

- alimento  

- oxígeno (O2)

2. Productos de la nutrición animal:

- residuos orgánicos  

- dióxido de carbono (CO2)

Explanation:

Los alimentos son sustancias químicas que los animales ingieren a fin de que el organismo transforme dichos compuestos en nutrientes los cuales son requieridos para la generación, el crecimiento y la reconstrucción de células y tejidos.

El oxígeno (O2) es un nutriente escencial para la vida el cual se absorbe mediante el proceso de respiración. Este proceso posibilita la absorción de otros nutrientes obtenidos a través de la alimentación.

Los residuos orgánicos representan productos de la nutrición animal los cuales se descomponen naturalmente para formar parte de la materia orgánica. En animales, los desechos órganicos son eliminados a través de los excrementos o en la orina.  

El dióxido de Carbono (CO2) es un producto de la respiración. En animales, la respiración celular consume oxígeno y compuestos orgánicos con el objetivo de producir energía en forma de ATP. Como concecuencia del proceso de respiración, los animales liberan CO2 al medio ambiente.

4 0
3 years ago
A student is studying the amino acid sequence of a protein shared by four organisms. The student wants to know which organism is
MariettaO [177]

Answer:

Organism D.

Explanation:

Amino acids are the monomers of proteins and are linked together by the peptide bond. The protein is obtained from the RNA molecules by the process known as translation.

The amino acid sequence of the proteins can also be used to study the evolutionary relationship between the organisms and the closeness of teh organisms with each other. In the question it is give that organisms A and D has least difference ( 1 amino acid sequence difference) and more related with each other.

Thus, the answer is organism D.

5 0
3 years ago
What creates the Van Allen belts? A. Earth's aurora borealis B. Earth's gravity C. Earth's magnetosphere D. Earth's mantle conve
Neko [114]
The Van Allen belts are created by a planet's magnetic field. Therefore C. Earth's magnetosphere is the correct answer 
3 0
3 years ago
Read 2 more answers
Why does frozen water (ice) float on liquid water
Natali5045456 [20]

Answer:

Because it is a solid that has trapped air with the water molecules in cold temperature thus creating a hard solid.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following statements about homologous chromosomes is correct?
    10·1 answer
  • Third-base wobble allows some tRNAs to recognize more than one mRNA codon. Based on this chapter's discussion of wobble, what is
    7·1 answer
  • Advances in medical technology, lifestyle improvements, and environmental protections have produced significant and equal health
    13·1 answer
  • Which class of organic compounds do cells use to store information? nucleic acids proteins lipids carbohydrates
    10·2 answers
  • Compare and contrast the rate of photosynthesis is the two areas. give a reason for your answer based on the scenario.
    6·1 answer
  • Fish and amphibians commonly conduct fertilization.
    5·2 answers
  • What is nitrogen cycle?
    5·1 answer
  • A scientist observes a previously unknown species. It is multicellular, and has specialized sense organs. Based on the diagram o
    6·2 answers
  • Name three reasons fossil fuels are detrimental to Earth.
    12·1 answer
  • Alejandro wants to find the speed of his car in meters per second. His car traveled 50 cm. It took 5 seconds to travel 50 cm. Ho
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!