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
belka [17]
3 years ago
10

44. Which of the following choices is NOT a major component of vascular plant leaf anatomy?

Biology
1 answer:
Aliun [14]3 years ago
5 0

Answer:

The correct answer is option d. "Elastic channels".

Explanation:

The vascular plants uses xylem and phloem cells that carry water and nutrients to all the parts of the plant, which are present in the leaves of the plant. Stomata is part of the vascular system of a plant, but it serves for gas exchange instead of water and nutrients exchange. Palisade mesophyll is a structural component that contains columnar cells with spaces between them, located in the leaves of vascular plants as well. A component that is not part of the vascular plant leaf anatomy are the elastic channels.

You might be interested in
Scientists have been able to make plants resistant to diseases by modifying their DNA. The main tool for exploring this type of
svetoff [14.1K]
Answer - Genetic Engineering (Confidently Correct)

Reason - With Technology we can change the genetics of a species and help it adapt to it env. to survive longer and reproduce.
5 0
3 years ago
Read 2 more answers
In pea plants, long stems are dominant to short stems, purple flowers are dominant to white, and round peas are dominant to wrin
meriva

Assuming the genes are not linked nor interacting with each other, the expected number of long stemmed plants with purple flowers, producing wrinkled peas, L-P-rr, is 288.

<h3>Available data</h3>

  • long stems are dominant to short stems
  • purple flowers are dominant to white,
  • round peas are dominant to wrinkled

  • Each trait is determined by a single, different gene.

  • A heter0zyg0us plant is self-crossed
  • F1) 2,048 descendants

Let us name te alleles as follows

  • L ⇒ Long stem
  • l ⇒ Short stem
  • P ⇒ Purple flowers
  • p ⇒ white flowers
  • R ⇒ Round peas
  • r ⇒ wrinkled peas

Cross) heter0zyg0us plant is self-crossed

Parental) LlPpRr

Gametes) LPR, LPr, LpR, Lpr, lPR, lPr, lpR, lpr

Assuming that these genes are not linked nor interacting with each other, to make the calcs easier we will make crosses considering each gene separately.

  • Stems

Parental) Ll  x  Ll

F1) 1/4 LL, 2/4 Ll, 1/4 ll

     <u>3/4 long stem,</u> 1/4 short stem

  • Flower color

Parental) Pp  x  Pp

F1) 1/4 PP, 2/4 Pp, 1/4 pp

     <u>3/4 purple flowers</u>, 1/4 white flowers

  • Peas

Parental) Rr  x  Rr

F1) 1/4 RR, 2/4 Rr, 1/4 rr

     3/4 round peas, <u>1/4 wrinkled peas</u>

Now, we will get the proportion of individuals with long stems, purple flowers, producing wrinkled peas, L-P-rr

<u><em>Note</em></u><em>: The symbol - is representing either a dominant or a recessive allele.</em>

From the crosses, we know that

  • 3/4 are long stemmed,
  • 3/4 have purple flowers, and
  • 1/4 have wrinkled peas.

To get the proportion of individuals expressing all these traits together, we just need to multiply these values.

3/4 L- x 3/4 P- x 1/4 rr =<u> 9/64 L-P-rr</u>

Knowing that  the total number of plants is 2,048 and that there are 64 possible gametes combinations from this cross, we will use the proportion 9/64 to get the number of plants with these traits.

64 ------------- 2,048 plants

9 -------------- X = (9 x 2048) / 64 = 288 plants.

<em>We expect to find 288 long stemmed plants with purple flowers, producing wrinkled peas.</em>

<em />

<em />

You will learn more about trihybrid crosses at

brainly.com/question/21942441

brainly.com/question/7333760

brainly.com/question/6764853

4 0
2 years ago
Alfred Kinsey conducted research to determine what percentage of the population was heterosexual and what percentage was homosex
kow [346]

Answer:

B. He believed that sexuality is a continuum and wanted to classify people more precisely

Explanation:

Kinsey quantified in his studies heterosexuality and homosexuality on a continuous scale from 0 to 6, specified in heterosexual and homosexual experience and reactivity in each story. 0 on this scale is assigned to individuals with exclusively heterosexual sexual contacts and experiences and 6 to exclusively homosexual individuals.

He proposed a model according to which there are many intermediate degrees between heterosexuality and homosexuality. This gradualness was embodied in what is now known as the Kinsey scale.

3 0
3 years ago
How can farmers help solve the issues surrounding an increase in algal blooms around the world
Wewaii [24]
<span>By proper application of fertilizers. Soil tests provides the proper application. hope this helps</span>
5 0
3 years ago
Read 2 more answers
Which of the following statements is true? A. The daughter cells formed during mitosis are genetically similar to, though not id
raketka [301]
Maybe A 
*sorry language english is bad
5 0
3 years ago
Read 2 more answers
Other questions:
  • A student creates a model of a closed ecosystem by filling a glass tank half full with water then addin 10 snails and two small
    11·1 answer
  • What are the different forms of genes inherited from each parent
    13·1 answer
  • Modern technology could be used to clone pet
    11·1 answer
  • Which person's study is being done at a micro-level orientation?
    14·1 answer
  • The fundamental Mendelian process which involves the separation of contrasting genetic elements at the same locus would be calle
    13·1 answer
  • Identify the characteristics of plant-like protists. Check all that apply. all contain cell walls autotrophs unicellular all are
    11·2 answers
  • Compared the endocrine system, the nervous system is __________.
    15·1 answer
  • Which best describes the cycle that ensures fresh water, which is vital for carrying out metabolic processes, is available?
    14·1 answer
  • Compound use by cells to store and release energy
    14·1 answer
  • The following reaction is of photosynthesis:
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!