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polet [3.4K]
2 years ago
7

What does a sand shark look like?

Biology
2 answers:
puteri [66]2 years ago
3 0
It’s very yellow and it has a lot of different textures
Sindrei [870]2 years ago
3 0

Answer:

They are found in shallow waters, usually near the bottom or along tropical and temperate coastlines of all oceans. They range from 3 to 6 meters in length and are brown or gray above, paler below. Voracious, but generally sluggish, they have long, slim, pointed teeth and prey on fishes and invertebrates.

Explanation:

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Can someone help me check these two if they are right?
Sergeeva-Olga [200]

Answer:

all are correct

Explanation:

6 0
3 years ago
Ype the correct answer in the box. Spell all words correctly. What is the process of using natural resources efficiently to ensu
Marat540 [252]

Answer:

The correct answer is - Sustainable development.

Explanation:

Sustainable development is the process of using or utilizing the natural resources in the present in such an efficient way that there will be resources for future generations without compromising their needs.

It is essential in the current situation as people overexploiting the natural resources that it is quite possible there will very few resources will be left for future generations.

5 0
2 years ago
ATP molecules, which are used for energy by cells, are built during all three stages of cellular respiration. Which stage of cel
MArishka [77]

Answer:

Electron transport chain.

Explanation:

3 0
3 years ago
Boris Magasanik collected data on the proportion of each base in RNA from different species. To compare the relative amount of e
just olya [345]

Answer:

The nucleic acid is a macromolecule present in living systems in the form of either DNA or RNA, whose molecule consists of many nucleotides which are linked with each other to form long chains. The presence of DNA or RNA in an individual promotes continuity of life. The variability and complexity of nucleic acid are dependent on its constituent molecules as, sugar, a phosphate group, and a nitrogenous base. However, two monocyclic nitrogenous bases were classified purines (adenine:A, guanine:G) and pyrimidines (thymine:T, cytosine:C, and uracil:U).

In addition, RNA is a single-stranded structure which differs from DNA in two aspects, the sugar content of RNA is ribose, and pyrimidine base uracil replaces the thymine base of DNA. A ratio between two strands of DNA can be calculated by using Chargrff's rule which states that "DNA from any cell of all organisms possess a 1:1 ratio (base Pair Rule) of pyrimidine and purine bases'.

The purine to pyrimidine ratio in RNA with different bases is given below in the following table:

Presence of single strand in RNA does not follow chargaff's rule and alters the purine: pyrimidine ratio. The above ratio of each base in the given information is not equal, due to which the ratio of purines to pyrimidines is different. The ratio of DNA and RNA is not equal because DNA has its complementary DNA strand. However, bases in RNA might vary due to its single-strandedness property, but its ratio is dependent on the species.

Therefore, it can be concluded that the ratio of purines to pyrimidines is dependent on the species due to its genetic makeup. Hence, option (c) is correct.

7 0
2 years ago
One principle reason cells are so small is so that
Tom [10]
I would select A because cells have to divide into smaller cells depending on where they are.
7 0
1 year ago
Read 2 more answers
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