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
Vinvika [58]
3 years ago
9

If the stem of a plant is bent or snapped, why does the part above the bend usually die, even if it is propped up with a support

?
Biology
1 answer:
Georgia [21]3 years ago
3 0
 There are inner part of the stem and outer part of the stem; in a plant the inner part supports the movement of the water and nutrients. You stop the flow of the vital elements of plant growth when you snap the stem and this is the reason why the plant die due to starvation of the nutrients. 
You might be interested in
These structures are found in the nucleus of dividing cells they appear x -shapped
Olin [163]

Answer:

Because each duplicated chromosome consists of two identical sister chromatids joined at a point called the centromere, these structures now appear as X-shaped bodies when viewed under a microscope. Several DNA binding proteins catalyze the condensation process, including cohesin and condensin.

Explanation:

6 0
2 years ago
The process illustrated in the figure is called
MissTica
What is your question?
8 0
2 years ago
A maize plant with genotype Aa Bb produces the following gametes 100 Ab 45 AB 106 aB 50 ab This tells us that the two genes are
bogdanovich [222]

Answer:

True

Explanation:

The linkage relation of two genes can be determined on the basis of calculating recombination frequency.

If the recombination frequency value is greater than 50% then the genes are not linked and if the value is less than 50% then the genes are linked.

In the given question, the  crossover gametes formed will be Ab = 100

and aB= 106.

Therefore,

\dfrac{recombinant\ progenies}{ Total\ progeny}\times 100\\\\\dfrac{100 +106}{100+106+45+50}\times 100\\\\=\dfrac{206}{301}\times 100\\\\= 68.43\%

Since the recombinant frequency value is larger than 50% therefore the genes do not show linkage.

Thus, True is the correct answer.

7 0
3 years ago
explain the concept of mutation and how mutations can translate to a loss or gain of function in an organism
Vesnalui [34]

A mutation is a change in a DNA sequence. Mutations can result from DNA copying mistakes made during cell division, exposure to ionizing radiation, exposure to chemicals called mutagens, or infection by viruses. Germ line mutations occur in the eggs and sperm and can be passed on to offspring, while somatic mutations occur in body cells and are not passed on.

Recessive mutations inactivate the affected gene and lead to a loss of function. For instance, recessive mutations may remove part of or all the gene from the chromosome, disrupt expression of the gene, or alter the structure of the encoded protein, thereby altering its function.
6 0
2 years ago
Describe one consequence of urban runoff and how it affects the ocean's role in the hydrologic cycle.
neonofarm [45]

Answer:

“The increase in impervious or hard surfaces, including rooftops and pavement, decreases the amount of water that soaks into the ground, or infiltrates. This increases the amount of surface runoff.” notice many visible changes, includ- ing housing developments, road networks, expansion of services, and more.

Explanation:

5 0
3 years ago
Other questions:
  • What phase is a nucleus present
    8·1 answer
  • Which of the following is not an example of lipids?
    5·1 answer
  • Cells are limited from growing too large because
    5·1 answer
  • 15. Why is an enzyme's shape important for the process of a chemical reaction:
    15·1 answer
  • Can someone please help me with biology on chromosomes?
    6·2 answers
  • Explain two things we can learn from fossils. (3 points)
    8·1 answer
  • A longitude of a wave is a type of wave that transfers energy ____ to the direction of wave motion?
    8·1 answer
  • What is carried to the body cells by blood? pick 2
    7·1 answer
  • Answer the following questions based on the article you just read.MicroscopeName one advantage of light microscopesover electron
    8·1 answer
  • 3. Describe the mechanisms by which restrictive lung diseases reduce lung function and describe an example
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!