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zlopas [31]
3 years ago
14

Need help ASAP

Biology
2 answers:
levacccp [35]3 years ago
7 0

Answer:

b. silica

Explanation:

Olegator [25]3 years ago
4 0

!!

Explanation:

A crust is the outermost layer of a planet. The crust of the Earth is composed of a great variety of igneous, metamorphic, and sedimentary rocks. The crust is underlain by the mantle. The upper part of the mantle is composed mostly of peridotite, a rock denser than rocks common in the overlying crust.

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Which type of fish are sharks?
MaRussiya [10]

Answer:

B. Cartilaginous fish

Explanation:

Sharks have a cartilaginous skeleton. Cartilage is less dense than bone which allows sharks to move quickly through the water without using too much energy.

8 0
2 years ago
Composed of a phosohlipid bilayer
Zigmanuir [339]

The cell membrane is composed of a phospholipid bilayer.

The cell membrane is primarily composed of a mix of proteins and phospholipids

Phospholipids are a major component of cell membranes.  They a head and a tail. The head is hydrophilic  (attracted to water) and the tail is hydrophobic (repelled by water).

They form a bilayer in which their hydrophilic heads face the aqueous cytosol and extracellular fluid  while their hydrophobic tails face away from the cytosol  and extracellular fluid.

The lipid bilayer is semi - permeable


5 0
4 years ago
Which statement best describes messenger RNA?
sp2606 [1]

Answer:

The mRNA or the messenger RNA plays an important role in the cells. It is responsible for the transmission of genetic information from the DNA and this is sent to the ribosome and in the ribosome, the amino acid sequence is being specified, thus producing gene expression.

Explanation:

hope this help pls give me brainly

7 0
3 years ago
Read 2 more answers
Which statement must be true about the organism?
Artyom0805 [142]

Answer:

If we're talking about human organism then

It is multicelular.

It has a backbone.

It contains cells without nuclei.

Explanation:

human as almost all animals in the world is multicellular meaning they have more than one cell (some bacterias has only one)

backbone or "vertebra" is the is the bone of our back who supports us making us stand up.

Yes our cells contain nuclei , The nucleus contains nucleoplasm, a component where it is immersed in genetic material and as structures that are important for the performance of its functions

And finally our body don't have radial symmetry, radial symmetry is when you can "cut" the image in more than one piece keeping the symmetry in every side, some animals with radial symmetry are the starfish and the jellyfish.

5 0
3 years ago
What biological concept was mendel studying when he crossed pea plants many times over many generations?.
blagie [28]

Answer:

Inheritance Patterns

Explanation:

Mendel was studying how genes are past on to future generations and in what circumstances this can occur. He used pea plants as they multiply and grow quickly allowing him to observe many generations much faster than he would be able to observing humans or even other mammals. He also used pea plants because this way he could control reproduction of his pea plant population to adjust to specific questions he had in terms of his research.

7 0
3 years ago
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