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
motikmotik
3 years ago
9

The first line of defense involves which structure(s)?

Biology
2 answers:
Airida [17]3 years ago
7 0

Answer: B / Skin

Explanation:It's the ansewr

kifflom [539]3 years ago
6 0

Answer:

Skin

Explanation:

You might be interested in
What is the ability to rhythmically depolarize without outside stimulation called?.
allsm [11]
It’s called Autorythmic
3 0
3 years ago
After a major environmental change, what happens to species that do not adapt or move?
icang [17]

B. They become extinct

Please mark as brainliest if this helped!

7 0
3 years ago
Read 2 more answers
Assessing biodiversity:
Helen [10]

Answer:

The correct answer will be option-A

Explanation:

Biodiversity refers to the diversity of the biological entities present in an ecosystem. Biodiversity has a wide spectrum which not only includes the number of the diversity of the organism but also the interaction between them.

The biodiversity is assessed to study the changes that are taking place in an ecosystem, to study the causes and how the changes affect the human well being.

The assessment decisions ignore the personal interests and the biasness as the aim of the approach is not fulfil the personal needs but to maintain sustainable management of the ecosystem.

Thus, option-A is the correct answer.

8 0
3 years ago
[04.01] which best describes the difference between radiation and conduction?
Svetradugi [14.3K]
In radiation, we don't need medium to conduct heat or energy but in conduction we need medium to conduct energy or heat ! conduction is done by contact as in radiation there is no contact !

for example or any info, comment !
7 0
3 years ago
Read 2 more answers
Earth travels around the Sun at about 67,000 miles per hour. Earth's motion, therefore, is an example of _____.
irina [24]

Answer:

B. Velocity

Explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • Evolution that occurs over a long period of time is called
    10·1 answer
  • Which is a function of the thyroid gland?
    9·2 answers
  • <img src="https://tex.z-dn.net/?f=%28%20-%203%20-%202%29%20%2B%20%283%20%2B%2010%29" id="TexFormula1" title="( - 3 - 2) + (3 + 1
    6·1 answer
  • According to the dichotomous key below, what are the distinguishing characteristics of a female mosquito of the genus Culex? ANS
    9·2 answers
  • You observed light passing through lenses and through a set of prisms. Why does refraction occur? Include your lab observations
    6·1 answer
  • Carbon is the basis for life on earth because it _____.
    9·1 answer
  • What should you do when someone takes things and hoards them?
    13·1 answer
  • 1. Nutrients move from the digestive system into the blood by traveling through ___________, tiny tubes sticking out of the wall
    13·1 answer
  • I need help with this...​
    12·1 answer
  • What does a medical assistant do?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!