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navik [9.2K]
3 years ago
11

HELPPPP ASAP!!!!! These are the last onesss

Biology
2 answers:
Black_prince [1.1K]3 years ago
7 0
Question 2 has no motion question 3 is accelerating and Question 4 is decelerating
butalik [34]3 years ago
6 0
3. A
4. C
2. B
This isn’t biology
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Specialized cells called. <br> cells help move the skeleton and help the heart beat and pump blood.
Novosadov [1.4K]

Answer:

pacemaker cells.

Explanation:

Cardiac muscle tissue works to keep your heart pumping through involuntary movements. This is one feature that differentiates it from skeletal muscle tissue, which you can control. It does this through specialized cells called pacemaker cells.

6 0
3 years ago
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Darwin realized that the often exquisite fit of species to their environment is primarily the result of
bagirrra123 [75]
Natural Selection.
An easy and important way to remember this is by thinking of a species - let’s say a bright white moth. For ages, these moths have survived beautifully, matching perfectly with the white tree bark they live on, until one day, a smoky building begins pumping its soot into the air. This air begins to change the color of the tree bark to black and the once hidden white moths are now plainly visible to birds who eat them easily. Fortunately, every now and then a moth is born who is darker than the rest - black as soot even. And so, the birds keep eating the white moths but missing the soot-colored ones. As time goes by, the soot-colored moths produce more and more similarly colored moths, who are well hidden from the birds AND after enough time, the only moths that remain are soot-colored. This is why so many species “fit” exquisitely into their environment. They have ALL adapted in some way similar to the soot-colored moth.
6 0
3 years ago
Please help ASAP thank you
alexira [117]

Answer:

They will have A or answer choice C

Explanation:

7 0
3 years ago
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What are the 3 sections of the ocean floor
Kisachek [45]
The ocean floor regions are the continental margins, the ocean basin floor, and the mid-ocean ridge.
3 0
3 years ago
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Why might it be more difficult to prepare a vaccine against noroviruses than against rotaviruses?
White raven [17]

Designing efficacious norovirus vaccines remains a major challenge due to several factors:

(1) the extreme genetic variability within the norovirus family and within genogroups

(2) the rapid evolution of antigenically dissimilar pandemic GII.4 norovirus strains

(3) the lack of lasting immunity upon natural exposure to noroviruses in at least a proportion of the population.

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3 years ago
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