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
Veronika [31]
3 years ago
13

What is the principal component of the thickest layer of the skin?

Biology
1 answer:
jek_recluse [69]3 years ago
5 0

1. The correct answer is option A

The thickest layer is Dermis which is made up of two layers papillary and reticular. The reticular dermis is the lower layer of the dermis and is made up of dense irregular connective tissue featuring collagen fibers.

2. The correct answer is option  E

Bone is composed of fibrous and mineralized connective tissues which is enriched in collagen and calcium phosphate.

3. The correct answer is option C

Muscles are composed of two major protein filaments: a thick filament composed of the protein myosin and a thin filament composed of the protein actin. These two filaments slide over each other to repetitively contract the muscles.


You might be interested in
What percentage of the Earth's surface do forests cover? 20% 30% 40% 10%
fiasKO [112]

30% of the earth's surface is covered by forests.

----------------------------------------------------------------------------------------

7 0
3 years ago
Read 2 more answers
2. Which type of microscope can produce three-dimensional images of a cell’s surface? (1 point)
harkovskaia [24]
<span>2. This type of microscope is called a scanning electron microscope. 3. The difference between these two cells are that one has a nucleus and the other one doesn't. A eukaryotic cell has a nucleus and a prokaryotic does not.</span>
3 0
3 years ago
a marine biologist dredges up a small animal from the bottom of the ocean. it is uniformly segmented, with short, stiff appendag
Elden [556K]

Given the characteristics mentioned in the question, the animal must be an annelid.

<h3>What is an annelid?</h3>

Annelids, (Phylum name annelida) segmented worms, characterized by having body cavities (or body coelom), mobile bristles (or setae), and bodies segmented by transverse rings. The body cavity is reduced in leeches, and the bristles are devoid of some specialized morphology, including leeches. An important phylum of invertebrates in the animal kingdom, Annelida, consists of more than 9,000 species divided into three classes: Sea worms (polychaetes) are divided into motile and sedentary or tube-dwelling forms. earthworms (Oligochaeta); and leeches (Hildinea). Annelids are coelomic and tridermal.

General characteristics of annelids are:

  1. They show organization at the organ system level.
  2. Your body is segmented.
  3. They breathe through their body surfaces.
  4. The kidney is an excretory organ. They have well-developed circulatory and digestive systems.
  5. Common names for more familiar annelids include earthworms, sandworms, annelids, bristleworms, and leeches.

To know more about annelid, visit:

brainly.com/question/11400463

#SPJ4

4 0
1 year ago
One of 2 mammals that lay eggs.<br><br> brown bear<br> echidna<br> ostrich
Helga [31]

Answer:

echidna and Ostriches lay eggs

5 0
3 years ago
Read 2 more answers
What are some of the functions of organelles?
Anvisha [2.4K]

Answer:

they protect the jel in the body

Explanation:

5 0
3 years ago
Other questions:
  • Which of the following occurs after a virus attaches to a host cell in the viral reproduction process?
    15·1 answer
  • A group of ideas, parts, or pieces that relate to a similar concept
    6·1 answer
  • For the frog heart, temperature and heart rate are _______.
    14·1 answer
  • What must be true for natural selection to happen?
    13·1 answer
  • Organelle that manages or controls all the cell functions in a eukaryotic cell
    13·1 answer
  • What gas makes up most of the atmosphere of Earth
    14·1 answer
  • Why did alfred hershey and martha chase chose to use bacteriophages in their research?
    5·1 answer
  • You are looking through a microscope at onion cells and you see a cell with the sister chromatids lined up across the middle of
    6·2 answers
  • A shoreline's first line of defense against hurricanes is​
    14·1 answer
  • the size difference between most multicellular hosts and their pathogens results in which of the following evolutionary advantag
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!