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
Marina86 [1]
4 years ago
6

A vein in a leaf has what important function?

Biology
1 answer:
ludmilkaskok [199]4 years ago
5 0

Answer:

b

Explanation:

You might be interested in
After the three days, what happens in each test tube? why? what is necessary for rust to occur? how does this activity demonstra
Finger [1]
The situation would be that, in a sealed tube,  there are 3 to 4 nails inside and a certain amount of calcium chloride was added. After three days, there will be no changes to be observed in the first tube since the oxygen is not enough to initiate a change and there is no presence of water. For the second test, the same situation is made but boiling water was filled in the tube. For this, no changes would still be observed since there is no moisture. For the last test, the same situation as the first but it is filled halfway with water. After 3 days, rust would be observed on the nails. In order for rust to happen, there should be water and oxygen. The oxygen in the early atmosphere of the Earth would react with iron present in the oceans thus producing iron ores.
4 0
4 years ago
When too walk your dog you are using energy from the sunlight to power this activity. explain
GrogVix [38]
<h2>When too walk your dog you are using energy from the sunlight to power this activity</h2>

Explanation:

The ultimate source of energy in the ecosystem is the sun. When we take our dog for a walk, we are utilizing energy stored in our body that we obtained food. We must have obtained that from either plants or animals. The animal in turn must have obtained its food from plant. Plants are the organisms in the food chain who can convert the energy from the sun into the chemical energy. So, we can say that when we walk our dog we use energy from the sunlight to power this activity.  

5 0
3 years ago
Small molecules that allow communication between cells of the immune system and regulate the growth or activation of white blood
Aleks [24]
Cytokines
Hope this helps
7 0
2 years ago
Use the numbers to put the steps of translation in order, from first (1) to last (5). The large ribosomal subunit completes the
pashok25 [27]
Translation is a complex process that translated the genetic information from the language of DNA in the language of RNA. The first step in this process is the binding of the initiator tRNA (that is bound to the aminoacid methionine) to the small ribosomal unit. Then, the small ribosomal unit joins the mRNA; it is the part of the ribosome mainly responsible for translating. After that, the initiator tRNA binds to the start codon. This reaction frees some initiation factors that make large ribosomal units bind to the small one. Hence, <span>the large ribosomal subunit completes the initiation complex afterwards. The role of the large ribosomal unit is mainly to make the peptidic bonds between the aminoacids in the new protein. After that, </span><span>amino acids are paired with anticodons, gradually forming a long chain</span>; this chain is called a polypeptide and is the skeleton of the protein that is created. Finally, this process stops when one of the three possible stop codons are reached.

8 0
3 years ago
Read 2 more answers
What role does temperature play in the type of precipitation that develops?
12345 [234]
Above 30 degrees farenhieit or 0 degrees celcius there would be rain below there would be snow
6 0
3 years ago
Read 2 more answers
Other questions:
  • Changes in the DNA sequence that affect the expression of genetic information are called
    12·1 answer
  • If a scientist is looking at the size, temperature, brightness, and composition of a star, he may be studying the star’s
    13·1 answer
  • Dysfunctional breathing results in an increase in the activity level of which of the following secondary respiratory muscles
    9·1 answer
  • A plant is moved from direct sunlight and placed into complete darkness.
    10·1 answer
  • In beans the pod texture and growth form genes are located on different chromosomes. There are two varieties of beans in a farme
    15·1 answer
  • Many times people visit the doctor requesting the use of antibiotics to treat colds and viral infections. How is the doctor just
    11·1 answer
  • 1. What is energy?
    8·1 answer
  • The genetic variation within a species:
    6·2 answers
  • What is a simple definition of the noun "complex" in Biology?
    5·2 answers
  • Besides a means of gathering knowledge, how can the scientific method be useful when it is applied?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!