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Aneli [31]
3 years ago
14

Please help!! I really need help!!1

Biology
2 answers:
AlladinOne [14]3 years ago
6 0
Ok on the first question I have no clue but on the second question of going to be the last answer white with a few grey
lina2011 [118]3 years ago
5 0

Answer:

A and C

Explanation:

A on Q:1

C on Q:2

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6. species Closely related of orchids never mate in the wild because they bloom at different times. This is an example of ______
Dimas [21]

Answer:

temporal reproductive isolation

Explanation:

The correct answer would be temporal reproductive isolation.

<u>Reproductive isolation</u> generally refers to series of biological mechanisms or processes that prevent members of different species from mating/fertilization or prevent the product of their mating to be invalid.

Some reproductive isolation processes prevent members of different species from mating or prevent fertilization as a result of mating. These processes are known as pre-zygotic reproductive isolation mechanisms.

Some other processes ensure that the product of fertilization (when it occurs) is invalid. These are known as post-zygotic isolation mechanisms.

<em>A good example of the pre-zygotic reproductive isolation process is </em><em>when closely related by different species bloom at different times</em><em>. This will prevent mating or cross-pollination to happen between the different species. This is known as temporal reproductive isolation.</em>

5 0
2 years ago
seeds that are planted upside down are still able to grow into mature plants which explanation best explains this phenomenon?​
pav-90 [236]

Answer:

This question is incomplete but the completed question is below

eeds that are planted upside down are still able to grow into mature plants. Which explanation best explains this phenomenon?

(a)The roots change into branches, and the branches turn into roots.

(b)The roots grow toward the force of gravity, and the shoots grow away.

(c)The plant will become a smaller version of a mature plant.

(d)Roots always grow toward the dark, and shoots grow toward the light.

Two options appear to be correct here: options B and D

Explanation:

Regardless of the direction the seed is planted, the seed has the ability to re-position itself via the help of growth hormones that respond to gravity and redirect the seed into the proper orientation. However, after re-orientation of the seed, the root grows toward the direction of gravity (a process known as gravitropism) while the shoot grows toward the direction of sunlight (a process known as phototropism). Even though two options appear to be correct here, the most correct option based on he question is b

8 0
2 years ago
Transcription is:
Veronika [31]

Answer:

The synthesis of RNA from a DNA template.

Explanation:

We know that transcription is the first step in gene expression. In the transcription process, information from a gene is used to build a functional product such as a protein. The primary goal of transcription is to produce an RNA copy of a gene's from a DNA sequence.

For a protein-coding gene, the RNA copy, or transcript, carries that information that is needed to build a polypeptide.  

Eukaryotic transcripts need to go through some processing steps before starting of translation into proteins.

3 0
3 years ago
Read 2 more answers
Which term names the types of elements usually found in meteorites a.minerals b.gases c.metals d.nonmetals
vesna_86 [32]

Answer:

Minerals

Explanation:

Gases are natural and in the ground, metals are also in the ground as are non metals -just look at dirt- and minerals are usually found in geodes, which are usually fallen bits of asteroid and meteorite that has survived earth's atmosphere

4 0
3 years ago
What is cell answer it thank u good day​
Sidana [21]

Answer:

cell is the structural and fundamental unit of life.

Explanation:

hope it help

thank u

6 0
3 years ago
Read 2 more answers
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