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Mariana [72]
3 years ago
11

Starfish, sea stars, and sea urchins are classified as echinoderms. What does the prefix "echin-" mean?

Biology
1 answer:
faltersainse [42]3 years ago
8 0

Answer:

The prefix "echin-" means D. The prefix "exo" means outside/external.

Explanation:

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Should Cetaceans be considered mammals or fish? and why
Liula [17]

Answer:

Mammal

Explanation:

A mammal is any any animal that is warm-blooded, gets milk from its mother, and is born alive, etc. Therefore a Cetacean should be considered a mammal.

Hope this helps!

8 0
3 years ago
Some inbred strains of the weedy plant Arabidopsis thaliana flower early in the growing season, but other strains flower at late
RoseWind [281]

Answer:

a. Let us consider that L is responsible for late and l is responsible for early. From the mentioned data, it can be concluded that allele L or late is dominant over early. By crossing plants 1 and 4 we get the expected ratio of 3: 1, which shows that it follows Mendel's law of dominant.  

b. The genotype of all the four plants are:  

1st plant = Ll

2nd plant = ll

3rd plant = LL

4th plant = Ll

c. If the plant 1 is self-fertilized then the expected progeny will be 3 (late): 1 (early).  

In case if the 2nd plant is self-fertilized, the expected progeny will be only early.  

In case if the 3rd plant is self-fertilized, the expected progeny will be only late.  

In case if the 4th plant is self-fertilized, the expected progeny will be 3 (late): 1 (early).  

3 0
3 years ago
HELP ME NOW ASAP PLEASE HURRY HELP ME NOW
WITCHER [35]

Answer:

i think the best answer is A

Explanation:

the rest don't make much sense

hope this helped a bit

8 0
3 years ago
Plant and animal cells have which organelle in
Strike441 [17]

Answer:

cell membrane

Explanation:

i took this class last year

7 0
3 years ago
Read 2 more answers
What occurs when two pieces of land change their vertical relationship to each other?
Natali5045456 [20]

The answer to this is A.

The reason its A is because a Dip-Slip is inclined fractures where the blocks have mostly shifted vertically. If the rock mass above an inclined fault moves down, the fault is termed normal, whereas if the rock above the fault moves up, the fault is termed reverse.

6 0
3 years ago
Read 2 more answers
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