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
Ludmilka [50]
3 years ago
6

1.) why is the ozone layer important? What is it? And how is ozone created?

Biology
1 answer:
Anarel [89]3 years ago
4 0
Ozone protects the Earth from harmful UV rays from the Sun.
You might be interested in
In garden peas, long stems are dominant to short stems, and yellow seeds are dominants to green seeds, too long/yellow pea plant
Lera25 [3.4K]

Answer:

A) 300

B) 3:1

C) 9 long yellow : 3 long green : 3 short yellow : 1 short green

Explanation:

Long stems (L_) are dominant to short stems (ll)

Yellow seeds (Y_) are dominant to green seeds (yy)

We interbred pea plants with long stems and yellow seeds (L_Y_), but they had a short green parent (llyy) that could have only produced <em>ly</em> gametes, so our plants are heterozygous <em>LlYy</em>.

C) We interbred them LlYy x LlYy. If the two genes are unlinked, this is a typical dihybrid cross and from Mendel's law of independent assortment we know that the offspring will have the following phenotypic ratios:

  • 9/16 L_Y_ (Long, yellow)
  • 3/16 L_yy (Long, green)
  • 3/16 llY_ (short, yellow)
  • 1/16 llyy (short, green)

A) 3/16 × 1600 = 300 plants will be long and green.

B)

9/16 + 3/16 = 12/16= 3/4 plants will be yellow;

3/16 + 1/16 = 4/16= 1/4 plants will be green.

The ratio will be 3 yellow : 1 green

6 0
3 years ago
If a magnet is attracted to a metal object what can you say about the pole of the magnet and the pole of the object?
Nikolay [14]

Answer:

A. The poles are opposite

Explanation:

Magnets are object that produce magnetic fields, which are regions of space that exert a forces on charged particles in motion or on other magnets.

Every magnet has 2 opposite poles, which are labelled by convention as North Pole and South Pole; the lines of the magnetic field of a magnet go out from the North Pole and go into the South Pole.

Magnetic poles always exist in pair: it means, every magnet always contains a North Pole and a South Pole. If a magnet is cut in a half, each half of the magnet will still have a North Pole and a South Pole.

Each pole exerts a force on another pole; in particular, we have:

- Like poles (north-north or south-south) repel each other

- Opposite poles (north-south) attract each other

In this problem, a magnet is attracted to a metal object: this means that the two poles must be of opposite polarity. Therefore, the correct option is

A. The poles are opposite

7 0
3 years ago
What is hypertension and what are some factors that affect it?
tigry1 [53]
A condition in which the force of the blood against the artery walls is too high.
Usually hypertension is defined as blood pressure above 140/90, and is considered severe if the pressure is above 180/120.
5 0
3 years ago
Why are animals cells important for survival?<br> The answer in a paragraph!!
andrew-mc [135]

Answer:

If there are no animal cells, then life on earth would not exist. Also plants would dominate.

Explanation:

7 0
3 years ago
What is the term for term for existing in or produced by the sea ?
Vladimir [108]

Answer:

See synonyms for: marine / marines on Thesaurus.com. Elementary Level. adjective. of or relating to the sea; existing in or produced by the sea: marine vegetation. pertaining to navigation or shipping; nautical; naval; maritime.

4 0
3 years ago
Other questions:
  • How do most animals produce carbon dioxide
    8·2 answers
  • Arabinose is a monosaccharide that
    7·1 answer
  • Though some bacteria cause disease and illness in humans, the majority are harmless. Some bacteria are used to aid digestion, us
    8·1 answer
  • A population of pea plants has 25% dwarf plants and 75% tall plants. the tall allele, t, is dominant to dwarf (t). what percenta
    11·1 answer
  • Directional selection only occurs in response to naturally occurring events.
    15·2 answers
  • A 10-year-old girl with adhd has been on ritalin (methylphenidate) for 6 months. the girl's mother calls and tells the nurse tha
    11·1 answer
  • Bacteria cells reproduce by binary fission, a type of asexual cell division. One evolutionary advantage of binary fission is ___
    10·2 answers
  • Question 2: Case 2
    5·1 answer
  • Explain the types of parenchyma tissues with their function​
    10·1 answer
  • The____concentrates bile produced by the____and stores this concentrate until it is needed for digestion.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!