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gtnhenbr [62]
2 years ago
7

Why do you think some people still become ill even after taking strong precautions against an illness, such as receiving a vacci

ne?
Biology
2 answers:
nevsk [136]2 years ago
6 0

Answer:

r

Explanation:

r

Pie2 years ago
4 0

Answer:

Everyone's bodies are different, and some respond in different ways.  If you have a compromised immune system your body might not work the same as everyone elses.

Explanation:

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A foal from a red colored mother and a white colored father, has a light red coat. What are the likely genetics behind the foal’
kondaur [170]

Answer:

The likely genetics will be incomplete dominance for such a phenomenon.

Explanation:

Incomplete dominance occurs when the dominant allele is not fully or completely showing dominance over the recessive allele.

When parents with such alleles are crossed, the resulting offsprings will show a physical trait which is intermediate and different from both of the parents.

In the scenario discussed in the question, the red colored mother and the white colored father are producing offspring that have light red coat. This is because the red color is not completely dominant over the white color. Hence, an intermediate light red color is seen in the offspring.

4 0
3 years ago
Most cells of the human body directly receive a variety of endocrine secretions through the activity of which system
bearhunter [10]

Answer: I believe it is D, the Nervous System.

Explanation:

8 0
3 years ago
What is one of the most commonly used groups of preservatives in the cosmetic, pharmaceutical, and food industries?
DiKsa [7]
It would be an antioxidant, and the most commonly used antioxidant would be absorbic acid.<span />
4 0
3 years ago
1.
SSSSS [86.1K]
1-The correct answers is C- evolutionary classification.
Evolutionary classification/taxonomy is a branch of biological classification. The objective is to classify organisms and group them based on their shared descent, progenitor-descendant relationship and degree of evolutionary change. Now this classification can be done by comparing DNA sequences of the organisms and seeing how many they have in common

2- The correct answer is A-cladistic analysis.
A cladistic analysis is focused on categorizing the organisms based on their derived characters. And what is that? that means they are getting categorized
according to their evolutionary relationships( from ancestral characters).
So, species are going to be classified according to how recent their common ancestor is. If two species have a more recent ancestor they will end up in the same group
If the common ancestor between them is far, the distance between the respective taxa will be bigger.

3- The correct answers is C.
A derived character is a characteristic that appeared throughout evolution, still remains in a lot of different taxonomic groups and allows us to identify those groups.
From the options given, C is the only correct one because the presence of hair (a derived character)  only exists in mammals( the group). Other animals don't share that trait.


4-The answer is A.
In each node, a taxon was only one but then was divided into two taxa. Therefore, each node will represent a common ancestor of the taxon.
The correct option is A because the last node or terminal node is the hypothetical last common ancestor of the taxon on the cladogram.

5-  The correct answer is A.-DNA can solve evolutionary puzzles.
Dna has been helping understand how an organism is similar to more than one species, and that way, we can classify the organism the best way possible.
This can be achieved by comparing the nucleotides of the organism we want to classify, with other species. There are databases that have all the DNA sequenced so, what's left to do is count the common nucleotides and their positions.
3 0
2 years ago
How does the fact that telomeres are long stretches of repeated nucleotides lessen the impact that somatic cells don’t have te
Cloud [144]

Telomerase activity is controlled during development and is extremely low in somatic (body) cells, virtually undetectable. These somatic cells age because they do not frequently use telomerase.

  • Telomeres are repetitive sections at the very ends of chromosomes that are present in a variety of eukaryotic species, including humans and unicellular protists.
  • Each round of DNA replication wears down a little portion of the telomeres, which serve as caps to safeguard the interior chromosomal regions.
  • Most somatic (body) cells do not typically have telomerase activity, but certain adult stem cells and germ cells—the cells that produce sperm and eggs—have.
  • Adult germ cells, tumor cells, and fetal tissues all contain telomerase. Telomerase activity is controlled during development and is extremely low in somatic (body) cells, virtually undetectable. These somatic cells age because they do not frequently use telomerase.

learn more about telomerase here: brainly.com/question/14213408

#SPJ4

4 0
2 years ago
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