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
ziro4ka [17]
3 years ago
8

All of the following protect the skin and mucous membranes from infection EXCEPT

Biology
2 answers:
ser-zykov [4K]3 years ago
7 0
E I think that’s the answe
KatRina [158]3 years ago
3 0

Answer: C-Saliva

Explanation: Saliva only lubricate and moisturises food, aiding in food digestion employing its digestive enzyme, the salivary amylase, to break down chunks of food. All the other options; tears, hydrochloric acid, multiple layers of cells, are used as defensive mechanism from infections by the skin and mucous membranes.

You might be interested in
The liver is an example of organ of the digestive system. Which of the following statements describes the general function of th
nikklg [1K]

Answer:

Secretes enzymes and other liquids that aid in the digestion and processing of food

Explanation:

The liver is a large organ in the body, if not the largest. It possess a red-purple color and constitutes a part of the digestive system. The liver carry out many functions in the human body; inclusive of digestive function. Although it is not a main digestive organ.

During digestion, the liver is responsible for processing of absorbed nutrients by releasing certain hormones and chemicals like bile, which aids in digestion of fat. This is the reason the liver is considered a "gland"

7 0
3 years ago
A student in a biology class crossed a male Drosophila melanogaster having a gray body and long wings with a female D. melanogas
natulia [17]

Answer:

Answer is D "Genes for the two traits are located close together on the same chromosome, and crossing over occurred between the two gene loci"

Explanation:

Traits are distinguishing characteristics of an organism. The Phenotypic crossing of the Drosophila melanogaster specie with Gray body and long wings over that of the same specie but female with black body and apterous wings produced a total of 100 offspring, which showed a that genetic crossing were done on the closely related chromosomes of the body traits for the individual species.

6 0
3 years ago
A nucleotide consists of a phosphate group, a pentose sugar, and a __________________, all linked together by covalent bonds. po
solong [7]

Answer:

d. nitrogen-containing base .

Explanation:

A nucleotide comprises a phosphate group, a pentose sugar and a nitrogenous base (nitrogen-containing base).

A nitrogenous base is a type of aromatic heterocyclic organic compound which essentially has nitrogen in it. The base can be a purine or pyrimidine. Purine nitrogenous bases are adenine (A) and guanine (G) while pyrimidine nitrogenous bases are cytosine (C), thiamine (T) and uracil (U).

Till the time a base is not attached to covalently linked phosphate group and a pentose sugar, it is known as nucleoside. But as soon as we attach any nitrogenous base to the nucleoside, a nucleotide is formed. So it means a nucleotide is nucleoside + nitrogenous base.

Examples are as under:

A nucleotide which has adenine as nitrogenous base is known as adenosine triphosphate (ATP) while a nucleotide which has guanine as nitrogenous base is known as Guanosine-5'-triphosphate (GTP).

7 0
2 years ago
3. What is one thing that can be done to help improve areas that produce a lot of runoff?
vazorg [7]

Answer: hi, im here to help :3

so, you can either use plants, use pesticides and fertilizers less often or the one thing i know is consider a rain barrel.

5 0
3 years ago
Of the following muscle types, which has the longest muscle cells and has obvious stripes called striations? Of the following mu
kumpel [21]

Answer:

Explanation: skeletal muscle

6 0
2 years ago
Read 2 more answers
Other questions:
  • Herman is a slim man who is 5 feet 10 inches tall and weighs 140 pounds. however, he has diabetes, a disease that usually occurs
    5·1 answer
  • ANSWER ASAP PLEASE!!!!!!!!
    11·2 answers
  • The reproductive cell of a moss is?
    12·2 answers
  • The evolution of populations due to chance isa)genetic drift.
    8·1 answer
  • Which does not occur during translation? tRNA pairs with complementary mRNA. A peptide bond is created between amino acids. DNA
    11·2 answers
  • The defining characteristics of active transport are that this category of transport moves substances _________ their concentrat
    8·1 answer
  • How does the contractile vacuole in a single-celled organism function to maintain homeostasis?
    12·2 answers
  • Adult stem cells found in the bone marrow produce...
    13·2 answers
  • Describe Hydrogen Bonding.<br><br><br> BEST ANSWER GETS BRAINLIEST
    6·1 answer
  • arrange the following events in the correct order, from left to right, with respect to the function of the channels, ion permeab
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!