answer.
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
Wittaler [7]
2 years ago
13

Close examination of an organ reveals a lining of several layers of cells. The layers do not contain any blood vessels and one s

urface of the cells is open to the internal cavity of the organ. This tissue is probably
Biology
1 answer:
Reptile [31]2 years ago
3 0

Answer:

Epithelium

Explanation:

Epithelium are tissue massage found mostly in the skin and serve as protective covering for the internal and external parts of the body.

A major characteristic of the epithelium is that its layers do not contain any blood vessels such as the artery or vein. The surface of the cells is also usually open to the internal cavity of the organ.

You might be interested in
Imagine a newly discovered biological molecule that is mostly hydrophobic in its structure. This new molecule will most likely b
Yuki888 [10]

Complete question:

Imagine a newly discovered biological molecule that is mostly hydrophobic in its structure. This new molecule will most likely be classified as a___________.

a. Proteins

b. Lipids

c. Nucleic acids

d. Carbohydrates

Answer:

b. Lipids

Explanation:

Lipids are the biomolecules that are mostly nonpolar in nature. Storage lipids such as fatty acids and oils have small or long chains of hydrocarbons. This makes them largely hydrophobic. Similarly, phospholipids have fatty acid chains that make their hydrophobic component. Steroids are also the lipids that have a distinct sterol nucleus in their structure. This makes then hydrophobic. Therefore, most of the lipids have structural components that make them largely hydrophobic molecules. So, the newly discovered molecule is most likely a lipid.

3 0
2 years ago
This is a high school Biology class taught by teacher Ellen Quigley. The students will soon be taking the state End of Course Bi
riadik2000 [5.3K]

Answer:

Please see below  

Explanation:

The white board displays helpful info with regards to a QR scanner associated with the day's lesson plan. The shelves on the far end of the classroom holds up relevant books and other objects that will prove educational for the students. Some schedules have been put up too for the ease of the students.

4 0
1 year ago
Describe how an amino acid molecule passes from the lumen of the ileum to the liver​
Stels [109]

Answer: Amino acids are absorbed via a Sodium cotransporter, in a similar mechanism to the monosaccharides.

Explanation: Amino acids are absorbed via a Sodium cotransporter, in a similar mechanism to the monosaccharides. They are then transported across the alabaster membrane via facilitated diffusion. Di and tripeptides are absorbed via separate H+ dependent cotransporters and once inside the cell are hydrolyzed to amino acids.

6 0
2 years ago
Your ears receive sound waves and convert this energy into neural messages that travel to your brain and are processed as sounds
swat32
Receiving voices process I think this will help you :)
3 0
1 year ago
Read 2 more answers
1. Please describe the signal transmission across a myoneural junction that allows the nervous system to move the muscles of a f
SSSSS [86.1K]
1. Action potential reaches the axon terminal and depolarizes it.

2. Depolarization opens voltage-gated calcium channels, enabling influx of Ca into the neuron.

3. Calcium binds to specialized proteins on vesicles (containing pre-made acetylcholine) and triggers them to fuse with the neuron membrane at the synapse.

4. Exocytosis of acetylcholine into the synaptic cleft occurs.

5. Acetylcholine diffuses across the synapse and binds to nicotinic receptors on the end plate of the myocyte.

6. Activated nicotinic receptors, themselves ion channels, cause cation influx into the myocyte and generate an end plate potential. This eventually gives rise to the full depolarization within the myocyte that enables contraction.
6 0
2 years ago
Other questions:
  • It is projected that an increase in carbon dioxide levels in the atmosphere will most likely lead to
    14·2 answers
  • Evaluate accenture's history of branding campaigns. what remains consistent throughout?
    6·1 answer
  • Describe your DNA model. Which part do the straws represent? The pushpins? The paper clips and the black dots you made with the
    12·1 answer
  • When a small number of individuals moved to the United States from Germany, they established an Amish population. Why do you oft
    12·1 answer
  • Mitosis and meiosis always differ in regard to the presence of a. chromatids. b. homologs. c. bivalents. d. centromeres. e. spin
    7·2 answers
  • Tim was admitted for anemia associated with a malignant carcinoma of the left lung. He received treatment for the anemia at this
    7·1 answer
  • Which term represents animals with backbones?
    6·2 answers
  • In dolphins, gray (G) is dominant to black (g), Sleek (S) is dominant to pudgy (s) and friendly (F) is dominant to mean (f). All
    8·1 answer
  • Q35. (2pts) Describe how the antidote (treatment) helped Jared's cells make ATP (include the ETC and H+ gradient in your answer)
    12·2 answers
  • 1. What academic subset of oceanography studies seafloor features and the processes that form them?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!