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NARA [144]
3 years ago
14

Which kingdom is known to contain organisms that have cells with no cell walls?

Biology
2 answers:
kati45 [8]3 years ago
8 0

Answer:

Animalia

Explanation:

This is the animal kingdom, and animals do not have cell walls, only cell membranes. All other mentioned kingdoms do or might have cell walls.

Zina [86]3 years ago
4 0

Answer:

The animal kingdom

Explanation:

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Which of the following characteristics would make an organism less likely to face extinction?
olchik [2.2K]

The correct answer is fixed migration pattern.

Extinction means termination of last member of a particular species. This can be due to various factors. The reason could be natural or human interventions. The best characteristics of an organism to be less likely to face extinction are the fixed migration pattern. Migration of that particular species in a fixed pattern will make them adapt different environment. This saves the species from natural extinction. Even if the species of a particular geographical area dies the migrated species will be alive to breed and save the species from extinction.

7 0
3 years ago
Read 2 more answers
Which of the following is not a natural cause of extinction?
dedylja [7]

Answer:

Introduction of Non-native species would be the answer. ( B )

Explanation:

Now let's break it down.

A. Competition due to overpopulation

Competition due to overpopulation, as competition of resources rises, species will fight among each other, and slowly, population will go down. But I don't see the reason of why it would cause an extinction... perhaps a decrease of population. See, once populations starts decreasing, resources will increase. And ONCE resources increase, populations starts increasing, and there goes competition. Resources decreases, populations decreases, and the whole process repeats. So I'm not quite sure whether it will cause extinction of a species.

B. Introduction of Non- native species.

So what does it mean by Non-native species?

It means that species that have no effect and doesn't exist in the ecosystem. So that will definitely not affect the population whatsoever.

C. Catastrophic Events

Well, common sense. Many people died of tsunamis, tornado and other natural disasters every year. Too many disasters can cause the population to cease.

D. Disease

This we can relate, especially the Coronavirus. Many humans died of the deadly virus. Same goes to animals. If a disease gets too deadly, population will decrease and drive the species to extinction.

So, the Answer would be B.

<h2>HOPE THIS ANSWER HELPED :)</h2>
3 0
3 years ago
What are the methods of protein structure determination of biomacromolecules?
Alex73 [517]

Answer:

X-ray crystallography diffraction imaging, nuclear magnetic resonance spectroscopy imaging and frozen electron microscopy three-dimensional reconstruction technology.

Explanation:

http://www.creative-biostructure.com/protein-crystallization-and-structure-determination_13.htm

8 0
3 years ago
What happens when a atom loses an electron
Alex Ar [27]

It has a charge shift, which basically means, since there are 2 charges, that it'll filp it's charge:

- If the atom had a positive charge, it'll become negative

- If the atom had a negative charge, it'll become positive



Hope it helped,



BioTeacher101

7 0
3 years ago
In fruit flies, the gene for red eyes (R) is dominant and the gene for sepia eyes (r) is recessive. If two red-eyed heterozygous
maw [93]
So here we have two heterozygous organisms that will mate. You can put them into a Punnet square, just to be sure of your answers and to find all possible genotypes : 

      R      r
R  RR   Rr
r   Rr     rr

So you have RR, Rr and rr as your possible genotypes. 
6 0
3 years ago
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