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
ioda
4 years ago
8

A scientific theory _____.

Biology
2 answers:
katrin2010 [14]4 years ago
4 0

Answer:

2. Is the scientific community's best explanation for certain observable facts

Kryger [21]4 years ago
3 0
The best choice is number two

You might be interested in
Which term best describes the Mesozoic era? A. The Age of Mammals B. The Age of Single-Celled Organisms C. The Age of Flowering
expeople1 [14]
Which term best describes the Mesozoic era? D. The Age of <span>Reptiles. </span>Hope I helped, and good luck!:)<span>
</span>
7 0
4 years ago
Read 2 more answers
Excessive use of fertilizers has little impact on aquatic life.Explain.
mafiozo [28]
Fertilizer contains different types of phosphates and nitrates. When they are used to fertilize large fields, it can be beneficial in the matter of food production. But when it rains those nitrates, phosphates, etc can run off into a river,lake,stream and cause eutrophication . 

Eutrophication causes an abundance of plant growth such as algae blooms. Algae blooms can suffocate fish and can have an impact on human health. 
4 0
3 years ago
Compare and contrast intracellular receptors and plasma membrane receptors; consider the chemical nature of the ligands (i.e. ch
Ratling [72]

Answer:

Explanation: They both require the binding of Ligand.

Differences:

Intracellular receptor is located in cytosol. It can be found in the nucleus. It leads to slower responses related to gene transcription. They are steroids. Ligands are lipophilic, small, uncharged; diffuse through membrane and bind to receptor.

Plasma membrane receptor-

The Ligands are hydrophobic and don't have to be small and uncharged; bind only to membrane receptor. Extracellular signaling molecule binds to cell membrane receptor and triggers rapid cellular response (protein hormone)

4 0
3 years ago
Choose the best explanation of the difference between evolution and natural selection. A. Natural selection is the idea that spe
katen-ka-za [31]

Answer:

Evolution is not the same as adaptation or natural selection. Natural selection is a mechanism, or cause, of evolution. Adaptations are physical or behavioral traits that make an organism better suited to its environment. Heritable variation comes from random mutations.

3 0
3 years ago
The simplest tree using the fewest changes to show evolutionary relationships within a cladogram *
Marat540 [252]
Can you provide more info on this question?
3 0
3 years ago
Other questions:
  • In fruit flies, purple eyes and ebony body are traits that display autosomal recessive patterns of inheritance. In a
    5·1 answer
  • Why copper is much more expensive than iron?
    9·2 answers
  • How does a somatic cell mutation differ from a germ cell mutation?
    10·1 answer
  • The first step in the replication of dna is catalyzed by _____. the first step in the replication of dna is catalyzed by _____.
    12·1 answer
  • What are the three major wind systems?
    8·1 answer
  • true or false ? the clean air act is the United states most important law for preventing air pollution
    10·1 answer
  • Which of following is the SI unit for temperature?
    12·1 answer
  • Water is essential for life on Earth. Which property of water is the primary reason water is able to transport substances to and
    7·1 answer
  • The population of a culture of Pseudomonas aeruginosa bacteria is given by P= -1600t^2 + 58000t + 30000, where to is time in hou
    12·1 answer
  • Questions
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!