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Volgvan
3 years ago
11

What is a blastocyst ?

Biology
2 answers:
alexdok [17]3 years ago
7 0
The correct answer is <span>hollow ball of cells formed after a fertilized cell undergoes cell division. 

It is found in the earliest development of mammals and an embryo forms out of it. 

</span><span>The definition of blastocyst 
 mammalian blastula in which some differentiation of cells has occurred.</span>
igor_vitrenko [27]3 years ago
7 0
The correct awnser is D hope that helps 
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On study island i have a question and im only typing this to get the amount of characters needed
Fudgin [204]

Fault is a break or fracture in a block of a rock.

<u>Explanation:</u>

A fault is a term which is used in the subject Geology. A fault is a fracture or break in the continuity in a rock which result in the change in the place of the rock.

Fault can be one fracture or a number of fractures or breaks between the blocks of the rocks. Because of these breaks and faults, the blocks of the rocks to move against each other or move relative to each other.

6 0
3 years ago
What is one way a permanent
MArishka [77]

Answer:

The answer is most likely B, however it could be C. Here is why:

Explanation:

permanent magnets can usually withstand being dropped a couple of times. However, if you drop it enough and with enough force, it is possible to make it loose magnetism. If you do not have this kind of patience, it is more effective (an much more fun) to hit it really hard with a hammer.

    When something is magnetized, all of the atoms are facing a different direction. When you drop it/throw it/hit it with enough force, it causes the atoms to spin, so they are not all facing the same way.

6 0
3 years ago
How do the roles fulfilled by the males increase the survival of the species?
Anna11 [10]

The roles fulfilled by the males increase the survival of the species is males scare off predators and protect the pack.

<h3>What does fittest animals mean?</h3>

According to natural selection, there is a constant struggle for survival and only the fittest organisms are selected. These fitter organisms would be able to pass on their advantageous traits to their descendants.

Generally the main factors that cause the destruction of a habitat are deforestation, fires, livestock, agriculture and human occupation. Don't stop now.

See more about survival of the species at brainly.com/question/15280594

#SPJ1

7 0
1 year ago
How are seatbelts related to inertia? Write you answer in complete sentences.
Svetllana [295]

Answer:

Inertia- the tendency of an object to resist a change in velocity

Explanation:

Say a car was going at 65 MPH, but suddenly stopped. For all of the people in that car, their bodies would keep moving forward at 65 MPH until stopped by an equal force (say, the thing right in front of each person) The seatbelt is there to protect you from your own inertia.

7 0
2 years ago
Read 2 more answers
The Devonian marked the time of greatest diversity in which of the following?
USPshnik [31]
I would say that the fishes exhibited the greatest diversity (though the brachiopods also had considerable diversity) and mostly were of the ostracoderms (with a platey or shell-like skin and no jawbone) which exhibited many varieties and also the placoderm which had gills, a jawbone and fins so was developing characteristics of modern fish. 
5 0
3 years ago
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