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
Afina-wow [57]
3 years ago
9

What is a thery that has been proven true over time and and never disproven called

Biology
1 answer:
DaniilM [7]3 years ago
8 0
That is a scientific Law


You might be interested in
What allows substances to go through the cell?
Rudik [331]
Even the cell membrane is like the cell wall its flexible and lets certain things in and certain things out.
8 0
3 years ago
Read 2 more answers
In plants, which of the following are produced by meiosis?
prisoha [69]

Answer:

The correct answer is option c. Haploid spores.

Explanation:

In the plants, spores are normally unicellular and haploid and produced by the process of meiosis in the sporophytic body of the plant.

These haploid spores undergo the mitotic division and develop a new individual called gametophyte that forms gametes eventually.

Thus, the correct answer is option C. Haploid spores.

4 0
3 years ago
Calculate the weight of an object of 30 kg on Earth. 2. Calculate the weight of an object of 30000 g on Earth. 3. Calculate the
Dima020 [189]

Answer:

1. 294N

2. 294N

3. 19.6N

4. 19.6N

5. 4.9N

6. 4.9N

7. 80N

8. 185N

Explanation:

The weight of an object is the force that gravity is having over it, and we measure it in <u>Neutowns (N), which equals Kg x m/s².</u>

To find the weight of an object, we use the formula F= m x g.

F stands for force, m for the object's mass, and g for gravity, which is the force that attracts objects to Earth, and we measure it by the acceleration that an object has during free falling.

<u>The Earth's gravity is 9.8 m/s²</u>

1. We use the formula F=m x g

F= 30kg x 9.8 m/s²

F= 294 N

2. We have to convert the 30000g into kg to use the formula

30000÷1000= 30kg

30000g equals to 30Kg, so the object's mass (m) is 30Kg.

F= m X g

F= 30kg X 9.8 m/s²

F= 294 N

3. F= m X g

F= 2kg X 9.8 m/s²

F= 19.6 N

4.We have to convert the 2000g into Kg.

2000÷1000= 2Kg

The object's mass (m) is 2Kg.

F= m X g

F= 2kg X 9.8 m/s²

F= 19.6 N

5. F= m X g

F= 0.5 kg X 9.8 m/s²

F= 4.9 N

6.We have to convert 500g to Kg.

500g÷1000=0.5Kg

The object's mass (m) is 0.5 kg

F= m X g

F= 0.5 Kg X 9.8 m/s²

F= 4.9 N

7. The gravity on the moon is different from the one on Earth. In the formula, instead of 9.8 m/s² for the gravity (g), we use 1.6 m/s².

F= m X g

F= 50Kg X 1.6m/s²

F= 80N

8. The gravity (g) on Mars is 3.7 m/s², so we have to use it in the formula where it says g to find the object's weight on Mars

F= 50Kg X 3.7m/s²

F= 185 N

3 0
3 years ago
Looking at the phylogenetic tree
GuDViN [60]

Answer:

what about the phylogenetic tree?

Explanation:

6 0
3 years ago
Read 2 more answers
Q3: What is the interrelationship between plants, soil and decomposers?<br><br>​
sp2606 [1]

Answer: they are on diffrent parts of the chain

Explanation:

4 0
3 years ago
Other questions:
  • In the 17th century many people in scientist believe spontaneous generation of life occurred what is spontaneous generation and
    13·1 answer
  • This graph shows how the lynx and snowshoe hare populations can vary over time. How would the lynx population change if a diseas
    12·2 answers
  • Ripple marks likely indicate that a rock formed _____.
    6·2 answers
  • An organism's development from an embryo may contain clues about its history that scientists can use to develop relationships an
    15·1 answer
  • Sensory pathways are ____________ pathways that conduct information about limb ____________ and the sensations of ____________ ,
    6·1 answer
  • Which of the following is NOT a layer of the alimentary wall
    6·1 answer
  • Hello! What are two similarities of Mitosis and Meiosis? Thanks :)
    14·1 answer
  • If you ate a hamburger, you would probably only get about _____ of the original energy from the sun.
    11·2 answers
  • The earth’s surface stays completely the same over time. It never changes
    9·1 answer
  • What have more thermal energy?a bathtub at room temperature or a bathtub at 100° F ?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!