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
IRINA_888 [86]
3 years ago
10

In the following diagram of the energy flow in an ecosystem, what does symbol 1 represent?

Biology
2 answers:
Brums [2.3K]3 years ago
7 0

Answer:

A) sunlight

Explanation:

Symbol one is the first step in the food chain and does not get energy from anywhere. this represents the sun. the sun does not need to get its energy from anywhere and then gives energy to producers the plants.

aniked [119]3 years ago
5 0

Answer:

A. Sunlight

Explanation:

Took the Study Island

You might be interested in
Contrast the approaches of Charles Darwin and Gregor Mendel to the study of populations. What were Darwin’s main discoveries? Wh
Alborosie

Answer:

The elucidation of the mechanisms of biological inheritance and the understanding of how life evolved on Earth, the two important pillars on which a part of current biology supports. The founders of these branches of science, built in very different ways the knowledge they brought to all mankind.

Explanation:

Charles Darwin proposed the theory of biological evolution by natural selection. Define evolution as offspring with modification, the idea that species change over time, give rise to new species and determined a common ancestor. The mechanism he proposed for evolution was natural selection. Since resources are limited in nature, organisms with heritable characteristics that favor survival and sensitive reproduction leave more offspring, which makes the frequency of these characteristics increase over several generations. Natural selection makes populations adapt or become more appropriate to their environment over time. Natural selection depends on the environment and needs inheritable variations.

Meanwhile, Mendel, based on his experiments, formulated three general laws:

-The descendants of the crossing of two pure varieties of the same species are all the same. This first law is called the law of dominant characters.

-The descendants of the crossing of the hybrids with each other of the second generation is divided into four parts, three of them inherit the dominant character and one the recessive. This law is known as the law of segregation

-If the two original varieties differ from each other in two or more characters, each of them is transmitted independently of the others. This law is called independent transmission or the independence of the characters.

Darwin's ideas suggested his experiments with rabbits to Galton, but his inspirational capacity is over. Mendel's experiments, in contrast, traced a more fertile path. He had tested his mathematical laws with the pea. When trying to extend Mendel's ideas to other organisms, the scientists found changes that respond to different patterns, frequencies in the progeny that do not respond to the proportions found by the monk, but that have their own logic. Instead of weakening Mendel's model, the modifications were his strongest support. Mendel had founded a methodology that allowed discovering new methods.

3 0
3 years ago
You never have to worry about wastewater becoming contaminated because it can run through local treatment plants, true or false?
ddd [48]
Water does go threw water treatments to treat water so I’ll say true
3 0
4 years ago
Which of the following provides the best description of the function of genes?
AfilCa [17]

Answer: B i believe

Explanation:

7 0
3 years ago
Read 2 more answers
What is an allele frequency determined by? The proportion of a genotype (i.e., AB) in a population The survival rates of individ
Zinaida [17]

Answer:

The proportion of a genotype (i.e., AB) in a population.

Explanation:

  • Every trait is controlled by some alleles and their combinations. Allele frequency determines the frequency of occurrence of a particular allele in a population.
  • It can be determined by genotype frequency or proportion of a particular genotype in a population. As a genotype is a result of various alleles coming together, its frequency can help us to calculate the allele frequency.
  • For example, in a population with two alleles A and B, A allele can either occur as AA or as AB. To calculate the frequency of A we will have to calculate the genotype frequencies of AA and AB.  
8 0
4 years ago
In the most recent classification system, Bacteria, Archaea, and Eukarya are the three major domains of life true or fales
notka56 [123]

Answer:

True

Explanation:

Have a nice day :)

4 0
3 years ago
Other questions:
  • A wave with a wavelength of two meters with a depth of twenty meters what type of wave is it
    13·1 answer
  • The 3 particles that make up an atom are ?
    8·2 answers
  • Which polysaccharide helps fecal material move through the intestinal tract, thus preventing constipation?
    13·1 answer
  • Which of the following personal health practices should a person follow to prevent heart diseases?
    8·1 answer
  • Are the ocean and present atmosphere leftovers from the original atmosphere of earth?
    10·1 answer
  • HELLP!
    9·1 answer
  • At which stage does cell differentiation start?
    7·1 answer
  • In what cell phase(s) does chromosome production (replication) and formation (condensing) occur?
    6·1 answer
  • A scientist performed an investigation involving a reaction that produced Al,(50), How many sulfur atoms are represented in this
    14·1 answer
  • What are some(4) similarities between dark field microscopes and bright field microscopes?​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!