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
Yakvenalex [24]
3 years ago
12

A few mold spores land on the skin but do not survive due to the lack of moisture and the presence of oxygen. These spores have

been prevented from harming the body by which type of barrier?
biological
chemical
physical
mechanical
Biology
1 answer:
maria [59]3 years ago
5 0

Answer:

Physical

Explanation:

The skin is a physical barrier.

Mechanical barriers are made by mucous membranes

You might be interested in
What are the 3 laws of inheritance?
nikdorinn [45]

The three laws of inheritance are :

Law of Dominance. Law of Segregation. Law of Independent Assortment.

what is law of dominance?

First, according to the Law of Dominance and Uniformity, some alleles—variants of a specific gene located at the same chromosomal locus or location—are dominant over other alleles for that gene.

As it relates to genetics, the term "inherited" describes a feature or variation that is encoded in DNA and passed from parent to child during reproduction. The laws of Mendelian genetics govern inheritance. A will needs to be admitted to probate in order for the inheritance procedure to start. The probate court examines the will, approves an executor, and formally distributes assets to recipients in accordance with the terms. The executor will pay off any outstanding obligations of the deceased prior to the transfer

To learn more about inheritance,click below link

brainly.com/question/15078897

#SPJ4

3 0
1 year ago
Read 2 more answers
A region experiences frequent landslides from heavy rains. How can the local residents lower the frequency of landslides in the
Stels [109]

Answer:

In order for the local residents to lower the frequency of landslides in the region that experiences frequent landslides from heavy rains, they should do the following:

A. Start contour plowing on the slopes where landslides happen.

B. Plant vegetation on the slopes that experience landslides.

I wanna say A than B but at least i have narrowed down the answers :(

If it were me I'd probably go with A

4 0
4 years ago
Read 2 more answers
Vaccination is a process of injecting a dead or weakened form of a germ into the body. How does this help strengthen the immune
Verdich [7]

Answer:

Because you body is introduced to the virus, it is familiar to it and can build up an immunity to the weakened form so when the actual virus invades, your body know what to do.

Explanation:

8 0
3 years ago
Juxtaglomerular cells of the juxtaglomerular apparatus secrete _______________ when _______________.
Anna11 [10]

Answer:

The correct answer will be option-D

Explanation:

In case the blood pressure drops in the body, the juxtaglomerular cells of the kidney start converting the prorenin into renin. This renin converts inactive angiotensin to angiotensin I which gets converted to angiotensin II by ACE enzyme.

The angiotensin II acts as vasoconstrictor narrowing the vessels and thus increasing the blood pressure. It also stimulates the secretion of aldosterone which increases the reabsorption of sodium ions and help increase the blood pressure of the blood.

Thus, option-D is the correct answer.

6 0
3 years ago
Consider this animal cell. The organelles in an animal cell are labeled. Part D are stacked tubular structures. Which organelles
Dima020 [189]

Answer:

The image of the animal cell was not included in the question, the image has been added as an attachment.

The answer is centrioles; found in animal cells but not plant cells

Explanation:

According to the question, the image in the attachment section is an animal cell with labelled organnelles. An animal cell does not possess a Chloroplast, which is unique to only plant cells. Hence, organnelles D cannot be Chloroplast.

Ribosomes are organnelles made up of a complex of RNA and proteins. They are the site of protein synthesis, which occurs in all living cells. Hence, all cells including plant and animal cells contain Ribosome organnelles. Therefore, it is a wrong choice.

Centrioles are cylindrical tube-like structures made up of microtubules arranged in a specific pattern. Centrioles are present only in animal cells and play a major part in cell division, where they organize microtubules that separate chromosomes. As seen in the image, the two centrioles are perpendicular to one another, forming a CENTROSOME. A plant cell does not possess centrioles instead they contain microtubules organizing centres (MTOC).

Mitochondrion are present in both animal and plant cells as energy-generating organnelles but they are not stacked tubular structures as described in the question.

4 0
3 years ago
Read 2 more answers
Other questions:
  • When a vaccine is given to a person with a healthy immune system, what is the long-term result? your body has built up an ______
    8·1 answer
  • Which of the following is a non timber forest product?
    6·2 answers
  • What was the role of the water test tube for each phase?
    8·1 answer
  • Which pair of organelles is responsible for energy supply to eukaryotic cells?
    6·1 answer
  • Which of the following conditions is not based on the Hardy-Weinberg principle? Large population size No mutations Randomly mati
    15·2 answers
  • Enzymes have an attachment site called the ____ site for the _____ to join
    15·1 answer
  • How to not get attacked by bacteriophages.
    8·2 answers
  • The tegu population in south Florida feels sort of a
    13·1 answer
  • How do large corals differ from small corals
    8·1 answer
  • Climate influences the types of plants and animals that inhabit a specific biome. true or false? GIVING BRAINLIEST PLS HELP
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!