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Studentka2010 [4]
3 years ago
9

Which of the following is true about a phylogenetic tree ? A) they're a way of visualizing how different species are related. B)

Branch length always corresponds to how long a species has been alive. C) The species to the right are more evolved than the species to the left. D) All of the above.​
Biology
1 answer:
NeTakaya3 years ago
8 0
A) theyre a way of visualizing how different species are related.

Here’s a quizlet I found that may be helpful! https://quizlet.com/173517257/nova-lab-quiz-flash-cards/
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Which of the following is an example of an organic molecule?
ivolga24 [154]

b because im trying to help hope it helps :)))


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3 years ago
Members of the phylum Actinobacteria have had a profound impact on human health over the course of civilization. One member of t
Drupady [299]

Answer:

The correct answer would be - mycobacterium, and streptomyces.

Explanation:

Actinobacteria is a phylum that consists of a group of gram-positive bacteria with cytosine and guanine content in their DNA. These bacteria can be aquatic or land bacteria. Actinobacteria do not have cell wall however they make a non-sptate and mycelium.

Mycobacterium is one of the genera of the actinobacterium phylum. This genus includes pathogenic species in it that cause deadly diseases in humans and other mammals such as leprosy and tuberculosis Whereas streptomyces is another genus of the actinobacteria that is yielded the very first drug to fight with the ancient scourge.

Thus, the correct answer is - mycobacterium and streptomyces.

8 0
3 years ago
Which of the following is not a product of cellular respiration
Lera25 [3.4K]

Answer:

Oxygen

Explanation:

The products of cellular respiration are carbon dioxide, ATP, and water. In cellular respiration, glucose and oxygen react to form ATP. Water and carbon dioxide are released as byproducts.

3 0
3 years ago
Read 2 more answers
In ducks, the trait for normal feathers is dominant to the trait for silky feathers. If
vesna_86 [32]

Answer: The genotype ratio is 2Ff : 2ff

The phenotype ratio is two normal feathered birds to two silky feathered birds.

Explanation: Let F represent the gene for normal feather and f represent the gene for silky feather. F is dominant while f is recessive, therefore a male that is hybrid for trait of normal feather is heterozygous and will have a genotype of Ff, a female that is homozygous for silky feather will have a genotype of ff.

A cross between Ff and ff will yield 2Ff birds and 2ff birds. Since F is dominant, a bird having genotype of Ff will manifest outwardly as blue feathered birds while ff will manifest outwardly as silky feathered birds because f is recessive and must occur in a homozygous condition in order to manifest phenotypically. Therefore, the genotype ratio is 2Ff: 2ff.

See the punnett square attached for more information

5 0
3 years ago
Scientists are interested in how the severity of acid deposition affects the soil of the red spruce forests. They design a labor
Goshia [24]

The best question for this experiment is How does the composition of the soil affect the pH of the rainwater?.

<h3>What are the best factors being studied?</h3>

The main factors based on the description are:

  • The pH of the rainwater: This is the factor manipulated by the researcher.
  • The aluminum concentration: This is the factor researchers are evaluating.

<h3>What is the best question?</h3>

The best question would be one that relates the main two factors. Based on this, the best question would be: "How does the composition of the soil affect the pH of the rainwater?".

Learn more about rainwater in: brainly.com/question/14295571

5 0
2 years ago
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