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NikAS [45]
3 years ago
5

Which of the following is the best explanation of alternation of generations?

Biology
1 answer:
makkiz [27]3 years ago
8 0

Answer:

e.The plant life cycle alternates between two distinct, multicellular reproductive stages—one diploid and one haploid—that give rise to each other.

Explanation:

Alternation of generation refers to alternation of multicellular diploid and haploid forms in an organism's life cycle. It is found in some plants and algae. In plants it is as follows:

  • Two haploid gametes fuse to form a diploid zygote.
  • Diploid zygote develops into diploid sporophyte by mitosis and then produces haploid spores by meiosis.
  • Haploid spore germinates into a haploid gametophyte by mitosis and it produces haploid gametes.
  • The gametes fuse and the cycle repeats.  

Thus, alternation can be observed between diploid sporophyte and haploid gametophyte.

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9) Identify the FALSE statement regarding sensory receptor cells. A) A graded potential is referred to as a receptor potential.
rjkz [21]

Answer:

<u> C) Each type of sensory receptor responds only to the stimulus that defines the receptor</u>

<u></u>

Explanation:

Neurons,  specialized cells within the nervous system. These help with coordinated movement ad communication within the body through the transmission of electrical signals.

Sensory receptors are highly specialized neurons. These are able to detect various chemical and physical stimuli, and are classified by their ability to detect certain stimuli such as:

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Sensory receptors respond to certain intensities of stimuli, instead of one specific stimulus. e.g. Mechanoreceptors within the skin can respond to pressure changes due to touch, but may also detect sound due to specific vibrations.

7 0
3 years ago
Why do scientist put plants that are alike into groups
Dimas [21]
Because they have to be in the same group
6 0
3 years ago
(BIG POINTS) Do both lemurs and humans have the trait listed at point D? Explain. *Point D is "Walking Upright, Verbal Language.
aksik [14]
Hi

The answer is no , lemurs are not bipedal ,in other words they dont use two legs for walking , and no, they don't have language like ours.

Hope this helps and have a wonderful day!


6 0
4 years ago
Read 2 more answers
A molecule of DNA was analyzed and found to contain 18% guanine. What is the amount of: (Cytosine: Adenine:
kramer

Answer:

Cytosine: 32%

Adenine: 32%

Thymine: 18%

Explanation:

% purines= % pyrimidines

Therefore, the percent of guanine and adenine should add up to 50%, where the percent of cytosine and thymine should also add up to 50%

6 0
3 years ago
What is an adaptive advantage of recombination between linked genes?A) Recombination is required for independent assortment.B) R
chubhunter [2.5K]

The answer is; C


Recombination of genes is important  in the variation of the organisms because it allows for novel allelic combinations during fertilization of gametes. Natural selection works best in a population with high genotypic and phenotypic variations. This increases the chances of survival of the population in case of climate change or calamities that cause a bottleneck effect.


3 0
3 years ago
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