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
Reil [10]
3 years ago
12

The total number of fossils that have been discovered and the information derived from them is called the...

Biology
1 answer:
valina [46]3 years ago
4 0
The answer is D......
You might be interested in
The glacier shown in this picture is an example of which type?
yaroslaw [1]
Is there a picture ?????????????????????
3 0
3 years ago
Read 2 more answers
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU B
NeX [460]

Answer:  A. They form an organ

6 0
3 years ago
Read 2 more answers
Frequent or binge alcohol drinking during pregnancy can result in __________. frequent or binge alcohol drinking during pregnanc
nadya68 [22]
Fetal alcohol syndrome.
6 0
3 years ago
A variegated leaf with green and yellow patches is used for an experiment to prove that chlorophyll is required for photosynthes
olga_2 [115]

Answer: The colour of A before the starch test is GREEN while after the starch test is BLUE- BLACK. The equation for photosynthesis is

6CO2 + 6H2O → C6H12O6 + 6O2.

Explanation:

PHOTOSYNTHESIS is the process by which green plants use energy from sunlight to manufacture their own food. It is a building up process since simple inorganic compounds such as carbondioxide and water are built up into large organic compounds such as glucose and OXYGEN is given off as a by product.

Oxygen given out in photosynthesis occurs in the light stage during the process of photolysis of water. This occurs when the chlorophyll traps, absorbs and captures light energy and become energised. The energised chlorophyll supplies energy which is to split molecules of water into hydrogen ion ( H+) and hydroxyl ion ( OH-). The hydroxyl ion is reconverted to water and oxygen is given out as a by product.

To show that chlorophyll is NECESSARY for photosynthesis, a variegated leaf with green and yellow patches is used for an experiment.

The green portion is marked A and the yellow portion marked B. The leaf is tested for starch using the procedure below:

--> place leaf in boiling water for half a minute to kill it.

--> decolorize leaf by placing it in hot alcohol.

--> dip decolorize leaf in hot water to soften it.

--> place leaf on tile and add iodine solution to it.

RESULT: It would be found that only the green parts contain starch as blue+black colouration is observed while yellow area is unaffected by iodine.

5 0
2 years ago
Sabrina and Chris are researching underwater mountains called seamounts. Sabrina says that they are formed by divergent plates,
Nikitich [7]

A is the correct answer

3 0
3 years ago
Read 2 more answers
Other questions:
  • Citrus trees are angiosperms and dicots. Which characteristic would citrus trees have? a) flower petals in multiples of three b)
    5·1 answer
  • In an experiment what is being tested
    9·2 answers
  • Two friends are at a concert. They discover a location in the auditorium where the band sounds significantly louder than in othe
    5·2 answers
  • Name the part of the chloroplast where the calvin cycle takes place
    13·1 answer
  • Glucose is a carbohydrate. What reacts with glucose in order to complete this step?
    11·1 answer
  • Monosaccharides are also known as what 1 Point
    6·2 answers
  • Genes from different organisms with similar sequences or open reading frames (orfs) are called _____.
    14·1 answer
  • Cell walls are made of cellulose in ____________ cells.
    7·2 answers
  • Trisomy 21 can be caused by nondisjunction of chromosome 21, or by inheriting a Robertsonian fusion of chromosome 21 attached to
    10·1 answer
  • Volcanoes release sulfur dioxide gas. Sulfur dioxide gas can lead to and air pollution.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!