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saw5 [17]
3 years ago
11

Hybrid inviability and hybrid infertility are two examples of:________.

Biology
2 answers:
Blababa [14]3 years ago
6 0

Answer:

gametic isolation

Explanation:

d1i1m1o1n [39]3 years ago
5 0

Answer:

I believe that these two are examples of gametic isolation.

Explanation:

I believe this is the correct answer, however i dont really remember i took this course last year.

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Of all the species you observed in this lab, which is the most difficult to classify as fungus-like, plant-like, or animal-like?
GalinKa [24]

Scientists used to lump protists into a single kingdom, and they still use this classification for some purposes. However, science has largely recognized that the taxonomic grouping known as Kingdom Protista actually includes a wide range of organisms that are not particularly related. Biologists are currently in the process of revising their classification to reflect the evolutionary relationships among this massive set of organisms.

TL;DR (Too Long; Didn't Read)

Biologists used to classify all protists as part of Kingdom Protista, but almost every rule used to describe them has some major exception. They are now attempting to revise the classification of the organisms in this kingdom. Some scientists have tried to sort protists in comparison to three of the other kingdoms: plant, animal and fungus. This has not worked because many protists exhibit characteristics from two or more of these kingdoms. The current attempts of classification focus on grouping protists into between three and ten kingdoms, based on species’ common evolutionary ancestors.

Mind-Boggling Diversity

The protists exhibit considerable diversity. Almost every rule used to describe them has some major exception. Some protists live as parasites, others as predators and still others as producers. Some have rigid cell walls, while others have more flexible cell membranes. Their methods of movement include passive drifting, swimming with flagella, swimming with cilia and creeping along with pseudopods. Even certain very basic criteria that have been used to define the group, such as the presence of nuclei and mitochondria, either don't exist or take on bizarre forms in some protists.

Cross-Kingdom Characteristics

Scientists have tried to classify the organisms within the protists as either plant-like, fungus-like, or animal-like. However, genetic testing and close examination have revealed that these categories often don't hold up, either. For example, Euglena have characteristics of both plant-like and animal-like protists. Euglena have chloroplasts like plants, in the sense that the chloroplasts allow them to gain energy from the sun through photosynthesis. At the same time, they have a tail or flagella which they use to swim, making them mobile, a very animal-like characteristic. Many other protists also have characteristics that make it difficult to justify keeping them all in a single group or subgroup.

8 0
2 years ago
Antimicrobials that are effective against a wide variety of microbial types are termed _______.
Anna71 [15]

They are termed broad-spectrum antibiotics.

<h3>What are antibiotics?</h3>

Antibiotics are drugs that have the capacity to either inhibit the growth of or kill bacteria and some other microorganisms capable of causing diseases.

Antibiotics are of 2 types:

  1. Narrow spectrum antibiotics
  2. Broad spectrum antibiotics

Narrow spectrum antibiotics are effective against a very narrow range of bacteria. They are very specific in their targets.

Broad spectrum antibiotics, on the other hand, are effective against a broad range of bacteria. They can be referred to as multipurpose antibiotics. They do not only eliminate target pathogenic bacteria.

More on antibiotics can be found here: brainly.com/question/10868637

#SPJ1

7 0
1 year ago
When ann went to her doctor, he gave her a hearing test. during the test, the doctor presented tones to ann through earphones. t
expeople1 [14]
The doctor was testing Ann’s hearing
8 0
3 years ago
Read 2 more answers
If Darwin knew of Mendel’s work, how might it have influenced his theory of evolution? Do you think this would have affected how
Viktor [21]

Answer:

See explanation

Explanation:

Darwin proposed his theory of evolution on the premise of natural selection. According to him, organisms which possess favourable characteristics which enable them to survive in their environment are more likely to survive and reproduce, passing on these favourable characteristics to their offsprings.

According to Mendel, the unit of inheritance passed on from parents to offspring are genes. Hence Darwin's factors are Mendel's genes.

If Darwin knew of Mendel's work. It might have influenced his presentation of the idea of passing on favourable characteristics from parents to offspring in the light of genetics.

This would have made Darwin's work to have more empirical backing hence making it more widely accepted.

8 0
2 years ago
What is the chemical name for no2
vesna_86 [32]
I believe it is Nitrogen dioxide
6 0
3 years ago
Read 2 more answers
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