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
Greeley [361]
3 years ago
7

Why is mucus and cilia first line defense?

Biology
1 answer:
lilavasa [31]3 years ago
6 0

Answer:

the cluos in the cilia

Explanation:

it helps for you

You might be interested in
The students concluded that pea plants grew better in compost than did melon plants. Which of the following best addresses the v
musickatia [10]

Answer:

c. The conclusion is invalid because other variables in the experiment affected the results.

Explanation:

Consider the complete problem:

A group of students designed an experiment to determine the effect of compost on the germination and growth of plants.

The students set up experimental plots by mixing different ratios of soil and compost. They planted 20 pea and 20 melon

seeds in each plot and watered each plot regularly. The students recorded the number of seeds that germinated, and as the

plants grew they recorded the plant length, number and size of leaves, and general health observations.

The following observations were recorded.

 In all treatments, more pea seeds germinated than melon seeds

 There was a week of rainy weather at 3 weeks

 Melon plants developed a fungal growth at four weeks

 Melon plants grew longer than pea plants, but many melon leaves showed signs of yellowing as the weeks passed

The students concluded that pea plants grew better in compost than did melon plants. Which of the following best

addresses the validity of the conclusion made by the students?

a. The conclusion is valid because the independent and dependent variables in the experiment were controlled.

b. The conclusion is valid because the experimental design included a large sample size.

c. The conclusion is invalid because other variables in the experiment affected the results.

d. The conclusion is invalid because the units of measurement were not given in the experimental design.

<em>In order for the conclusion to be valid, all the independent variables should have been controlled. In this case, the independent variables such as the amount of water received by the plants, nutrient requirement of the plants, etc. were not controlled leading to fungal attack on the melon plant.</em>

<em>Hence, the conclusion is invalid because other variables that ought to have been controlled affected the experimental outcome.</em>

<em>The correct option is c.</em>

4 0
3 years ago
Alex has been diagnosed with schizophrenia. her doctor, dr. paris, prescribes her with a phenothiazine antipsychotic. after seve
tamaranim1 [39]
Alex will be effected by the drug because of the side effects which are..muscle spasms of the face, neck, and back, tic-like or twitching movements, inability to move the eyes, twisting of the body, or weakness of the arms and legs,Constipation, trouble urinating, dryness of mouth, confusion, problems with memory, dizziness or fainting, drowsiness, trembling of the hands and fingers, and problems with muscle movement, such as decreased or unusual movements.
3 0
3 years ago
What is called when an organism has two identical alleles for a trait. TT or tt. RR or rr
Elina [12.6K]

Answer:

Heterozygous

Explanation:

Heterozygous Is when an organism has two identical alleles for a trait. TT or tt. RR or rr

6 0
2 years ago
PLEASE HELP???? Compound formula: MgCl2 Element: Mg # of Atoms: 1 Element: Cl # of Atoms: 2 gram formula weight (g): 95.21 Compo
alexandr1967 [171]

Answer: A molecule of a compound is formed by bonding atoms of different elements through chemical bonding. The number of each type of atom present in one molecule of the compound is represented by a suffix to the symbol of the element which representing the formula of the compound. C12H22O11 is a formula of a compound consists of carbon, hydrogen and oxygen elements. There are 12 carbon atoms, 22 hydrogen atoms and 11 oxygen atoms in one molecule of C12H22O11. Therefore, the numbers 12, 22 and 11 represent number of atoms.

HOPE IT HELPS !!!!!!

7 0
2 years ago
how has the mid-ocean ridge formed? what are its main features in terms of geologic activity, rock type, and sediment cover?
Len [333]

Answer: I know the first part. It’s through a divergent boundary.

Explanation: the divergent boundary brings the 2 plates away from each other, so it opens up a ridge.

4 0
3 years ago
Other questions:
  • Alveoli _____.
    9·2 answers
  • Homeostasis is defined as
    6·2 answers
  • The body attempts to fight off an infection by       plz help
    10·2 answers
  • High-altitude, high-velocity "rivers" of air are called
    7·1 answer
  • The following represents the main locations fluids are found in the human body. Rank these body fluids in order from the fluid t
    8·1 answer
  • What is the relationship between mutation and mutagen ?
    9·2 answers
  • HELP ASAP!!!!
    14·1 answer
  • What could cause a nautral decrease in the number of primary consumers in a food chain
    12·1 answer
  • Where in the cell does the krebs cycle part of cellular respiration occur ?
    12·1 answer
  • What is the type of cell show in the circle plant cell,prokaryote cell,eukaryotic cell,egg cell?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!