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
finlep [7]
4 years ago
13

Determine the most likely reason why natural selection may cause prezygotic reproductive isolating mechanisms to evolve if postz

ygotic reproductive isolating mechanisms are already present, but natural selection can never cause the evolution of postzygotic reproductive isolating mechanisms. Ca Natural selection may lead to the evolution of prezygotic reproductive isolation in organisms that already have postzygotic isolation to prevent wasted reproductive effort. O Prezygotic isolation can evolve if postzygotic isolation has generated genetic variation during earlier periods of anagenesis. O If postzygotic isolation is present, then natural selection is already acting evolution of prezygotic isolation. Prezygotic reproductive isolating mechanisms are the necessary physiological and behavioral precursors for the evolution of postzygotic isolation via natural selection. same
Biology
1 answer:
maks197457 [2]4 years ago
8 0

Answer:

a) Natural selection may lead to the evolution of prezygotic reproductive isolation in organisms that already have postzygotic isolation to prevent wasted reproductive effort

Explanation:

Prezygotic reproductive isolation produces postzygotic reproductive isolation because this mechanism lead to genetic differences that impair the pairing of homologous chromosomes during meiosis.

You might be interested in
Restriction enzyme HinfI cleaves a five nucleotide DNA sequence GA(A/T)TC. The ambiguity in the central position - (A/T) - means
Afina-wow [57]

Answer:

C) 2.0 kb

Explanation:

It is given that out of the 4 nucleotides A, T, C & G each one has equal probability to occur at any position on the DNA molecule which simply means that the probability of occurrence of any nucleotide at a position is 1/4.

Also, it is given that probability of occurrence of either A or T at 3rd position is equal which means that the probability at that particular position will be 2/4 = 1/2.

Now, GA(A/T)TC is the DNA sequence where Restriction enzyme HinfI cleaves so the total probability of an average HinfI cleavage fragment will be = 1/4 x 1/4 x 1/2 x 1/4 x 1/4 = 0.00195 = 0.2 i.e. 2 kb.

6 0
3 years ago
Which flowchart correctly lists the structures in order from smallest to largest?
natta225 [31]

Answer: Im pretty sure the answer is C.) DNA -> gene -> chromosome -> nucleus

Explanation:

4 0
3 years ago
Read 2 more answers
Sediments are NOT _______________. Group of answer choices A. Salt in a river B. Nutrients in a river C. Earth material in a riv
murzikaleks [220]
The answer is D: oil mixed in river water
3 0
3 years ago
What are the five parts of skill related fitness. Please select all 5 below. Question 1 options: Speed Muscular Strength Coordin
Goryan [66]

Answer:

There are only four parts of skill related fitness in the options; they are:

Speed

Agility

Balance

Coordination

Explanation:

Physical fitness refers to the ability to perform physical activities well without fatigue. In other words, being physically fit refers to a state of general wellbeing. Physical fitness can either be health-related or skill-related. The skill-related components are six in number viz: agility, power, balance, coordination, speed and reaction time.

However, only four of these skill-related parts of physical fitness are mentioned in the options of this question. They are:

- Speed: This refers to the ability to run a distance in a short time frame.

- Agility: This is the ability to move easily and quickly in different directions

- Balance: The ability to maintain an upright body position during training or physical activity

- Coordination: The ability to make physical senses of one's body (eye) cooperate with the limbs (hands and feets) during a physical activity.

Note that, Aerobic Endurance and Muscular strength are health-related components of fitness

7 0
3 years ago
The amount of fuel used to heat and cool your home can be reduced by good ______.
DENIUS [597]
I believe the answer is Management, hope this helps :)
3 0
3 years ago
Read 2 more answers
Other questions:
  • If a pin is .001 m wide how many red blood cells could you line up across a pin
    7·1 answer
  • Males in their ________ are most likely to be sexually attracted to women who are several years older rather than several years
    12·1 answer
  • Mitochondria are responsible for providing( )for the cell. Aerobic respiration happens in the mitochondria.
    5·2 answers
  • Why is a viruses refered to as a particles rather than cells
    7·1 answer
  • What is kinetic energy
    9·2 answers
  • You hear a commercial on the radio for a brand-new medicine guaranteed to boost immunity. Which source is the least likely to pr
    15·2 answers
  • HELP it’s easy I’ll give Brainliest
    13·2 answers
  • Name the organelle that perfoms each of the following function in acell protain synthesis​
    11·1 answer
  • Quickly answer!!
    10·1 answer
  • Pigmented eyes (P) are dominant to non-pigmented (p), and dimpled chins (D) are dominant to Non-dimpled chins (d). A pigment-eye
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!