What idea states that the use or disuse of a body part can result in traits that can be passed on to offspring?

An external or internal cue or combo of cues that produces a response is called? A) motive B) observation C) reaction D) stimulu

uranmaximum [27]

$\huge\underline{\underline{\boxed{\bm {Answer:}}}}$

○ $\large\tt{A.)}$ motive

○ $\large\tt{B.)}$ observation

○ $\large\tt{C.)}$ reaction

◉ $\large\tt{D.)}$ stimulus

$\huge\underline{\underline{\boxed{\bm{Explanation:}}}}$

The cue or combo of cues that produces a response is called a $\large \sf{stimulus}$ , which is a thing or event that causes a specific reaction in an organ or tissue.

6 0

2 years ago

Where are you most likely to find primary succession?

givi [52]

It would probably be D. On a large farm, because, it has not been affected by a disaster in the other three.

Hope this helps! :)

6 0

3 years ago

Read 2 more answers

Which two statements about first-person narration are generally true? The narrator can be a witness or a reteller of events. The

nirvana33 [79]

Answer: The narrator can be a witness or a reteller of events.

Explanation:

A first-person narration is a way of storytelling in which the storyteller narrates the first hand experiences. The narrator recollects or recounts the events specific for a story through own point of view introducing oneself as first person. The narrator might have witnessed of all the events had taken place in past before telling the story.

7 0

3 years ago

The cycle of changes which occurs in female reproductive system for a month is called

MrRissso [65]

ovulation

Explanation: ovulation is the release of eggs(ova) from the ovaries is the cycle of change which occurs in female reproductive system for a month.

6 0

3 years ago

The following F2 results occur from a dihybrid cross (AaBb x AaBb): purple: A_B_ 9/16 white: aaB_ 3/16 white: A_bb 3/16 white: a

e-lub [12.9K]

Answer:

b. 3 (whilte) : 1(purple)

Explanation:

The first dihybrid crossing is between AaBb x AaBb

Now, if the double heterozygous traits self crossed, we have the following gametes shown below for the F₂ crossing.

AaBb = (AB, Ab, aB, ab)

AB Ab aB ab

AB AABB AABb AaBB AaBb

Ab AABb AAbb AaBb Aabb

aB AaBB AaBb aaBB aaBb

ab AaBb Aabb aaBb aabb

We were being told that the results are;

purple: A_B_ 9/16

white: aaB_ 3/16

white: A_bb 3/16

white: aabb 1/16

From above, we can see that the same is true;

For Purple color; we Have (AABB and AaBb) since A is dominant to a and B is dominant to b.

∴ From the above punnet square; we have 9 purple colors which are:

(AABB, AABb, AaBB, AaBb, AABb, AaBb, AaBB, AaBb, AaBb) = 9/16

white: aaB_ ( since B is dominant to b, it can be either BB or Bb)

= (aaBB, aaBb, aaBb) = 3/16

white: A_bb ( since A is dominant to a, it can be either AA or Aa)

= (AAbb, Aabb, Aabb) = 3/16

white: aabb i.e homozygous recessive = (aabb) = 1/16

Furthermore, the question goes further by saying:

If a double heterozygote (AaBb) is crossed with a fully recessive organism (aabb), what phenotypic ratio is expected in the offspring?

If AaBb self crossed, we have: (AB, Ab, aB, ab)

If aabb self crossed, we have: (ab, ab, ab, ab)

AB Ab aB ab

ab AaBb Aabb aaBb aabb

AaBb ( purple)

= 4/16

= 1/4

= 0.25

= 25%

Aabb (white)

= 4/16

= 1/4

= 0.25

= 25%

aaBb (white)

= 4/16

= 1/4

= 0.25

= 25%

aabb (white)

= 4/16

= 1/4

= 0.25

= 25%

Now the proportion of white to purple = (25%+25%+25%): 25%

= 75%:25%

= 3(white):1(purple)

We can therefore conclude that the expected phenotypic ratio in the cross between a double heterozygote (AaBb) with a fully recessive organism (aabb) yeids;

3 (whilte) : 1(purple)

8 0

3 years ago