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
arlik [135]
3 years ago
15

Darwin focused on studying specific species on the Galapagos Islands and other places and observed

Biology
1 answer:
ANEK [815]3 years ago
5 0
The answer is the 1st statement.
You might be interested in
Describe the function of a gastrovascular cavity
Contact [7]

Answer:

The gastrovascular cavity is a structure found in primitive animal phyla. It is responsible for both the digestion of food and the transport of nutrients throughout the body. The cavity has only one opening to the environment. Food goes in and waste comes out that same opening, making it a two-way digestive tract

Explanation:

8 0
2 years ago
Genes, which are the molecular units of heredity, are composed of specific sequences of four different__________.
Mashcka [7]

Answer:

Nucleotide bases.

Explanation:

Unique sequences of bases makes up a nucleotide. These nucleotide sequencing are used by DNA as a genetic code of information that determines type of cells, proteins and the whole organismal structure.

There are four nucleotide bases, Adenine and guanine termed purines are big, cytosine and thymine called pyrimidines are small. A purine pairs with a pyrimidine, such that adenine pairs with thymine and guanine pairs with cytosine. The bases are the same but each DNA uniqueness lies in the sequence of base pairing.

4 0
3 years ago
Which imaginary line divides Earth into the Northern and Southern Hemispheres?
stealth61 [152]
The Equator. It divides the lin
4 0
3 years ago
Read 2 more answers
Explain the three mechanisms of heat transfer in Earth’s atmosphere.
MariettaO [177]

Explanation:

There are three ways heat is transferred into and through the atmosphere.

radiation. conduction. convection.

Radiation

Radiation is the transfer of heat energy through space by electromagnetic radiation.If you have stood in front of a fireplace or near a campfire, you have felt the heat transfer known as radiation. The side of your body nearest the fire warms, while your other side remains unaffected by the heat. Although you are surrounded by air, the air has nothing to do with this transfer of heat. Heat lamps, that keep food warm, work in the same way.

Conduction

Welding iron is transferring heat by conduction

Conduction is the transfer of heat energy from one substance to another or within a substance. Have you ever left a metal spoon in a pot of soup being heated on a stove? After a short time, the handle of the spoon will become hot.This is due to transfer of heat energy from molecule to molecule or from atom to atom. Also, when objects are welded together, the metal becomes hot (the orange-red glow) by the transfer of heat from an arc.

Convection

convection is the transfer of heat energy in a fluid. This type of heating is most commonly seen in the kitchen with a boiling liquid.

Air in the atmosphere acts as a fluid. The sun's radiation strikes the ground, thus warming the rocks. As the rock's temperature rises due to conduction, heat energy is released into the atmosphere, forming a bubble of air which is warmer than the surrounding air. This bubble of air rises into the atmosphere. As it rises, the bubble cools with the heat contained in the bubble moving into the atmosphere

7 0
3 years ago
Classify the following microorganisms under Algae, Protozoa, and Fungi.
Hitman42 [59]
Yeast and penicillin are fungi
6 0
2 years ago
Read 2 more answers
Other questions:
  • What is the difference between stressed and bleached coral?
    12·1 answer
  • A student studies a plant specimen. The student notices that the plant has seeds that are enclosed by a fruit. Which term can th
    14·2 answers
  • At the beginning of DNA replication, what two processes "unzip" the two strands of a DNA molecule?
    14·2 answers
  • All eukaryotic cells contain small bodies called _________.
    5·1 answer
  • What is the primary cause of china's severe air pollution?
    15·1 answer
  • What type of plate boundary could form a mountain chain of sedimentary rock? PLEASE ANSWER NOW 
    11·1 answer
  • What would happen to the oceans if continental and oceanic crust had the same density?
    13·1 answer
  • What structure is responsible for the opening and closing of the stomata
    10·1 answer
  • Please help it’s due soon...
    10·1 answer
  • Placer mining involves _______ to extract minerals.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!