A. True
b. False Plankton and nekton are found in the ocean. A shark is an example of nekton.

Answers

Answer 1

Answer: The answer is A. True.

Plankton includes a diverse group of organisms that live in the water but are not capable of active swimming against the water current. On the contrary, nekton includes a diverse group of organisms that live in the water but are capable of active swimming without the help of the water current. A shark is capable of active swimming, therefore, it is the example of nekton.

Related Questions

Which of the following terms refers to how genetic traits are expressed? A. Display B. Genotype C. Phenotype D. Dominance
Give 3 differences between autotrophs and heterotrophs?
Which best defines homeostasis
The brain is most active during which portion of each sleep cycle? A. the beginning of each sleep cycle B. the middle of each sleep cycle C. the end of each sleep cycle D. The brain is not active during the sleep cycle.
what's the body's most widespread nonspecific defense against pathogens? a. tears b. mucus c. saliva d. skin

Which organelle in the table is correctly matched with its function?lysosome
vacuole
mitochondrion
ribosome

Answers

Answer:

Ribosome

Explanation:

Ribosome produces proteins

How often does the body perform cellular respiration?A.once in the morning and once at night
B.only at night
C.continuously
D.only when the body runs out of ATP

Answers

Ans. (C).continuously.

Cellular respiration can be defined as a metabolic process, which involves breakdown of carbohydrate molecules to produce energy in the form of ATP molecules. These ATP molecules release energy during chemical hydrolysis.

Cells present in body require a continuous supply of energy to preform all of metabolic reactions. Hence, cells perform cellular respiration continuously or constantly.

Thus, the correct answer is option (C).

c. constantly.

hope this helps!

What factor determines when a species is considered invasive?a. It has positive environmental impacts.
b. It is environmentally damaging.
c. It spreads outside its native range.
d. It spreads within its natural range.

Answers

Answer: b. It is environmentally damaging.

An invasive species is a kind of living organism such as amphibian, insect, bacteria, fungus, plant or even the seeds or eggs of the organism that is not native to a region or ecosystem but introduced either accidentally or by the migration of the species in search of food, shelter, habitat and mates. The invasive species has the potential to compete with the native species, can harm the environment, and health of the human or other living species.

The invasive species spread rapidly after starving the population of native species for food, shelter and for other needs. The invasive species can affect the availability of water and can damage the quality of soil nutrients. Once it is introduced into a habitat it changes the environmental condition of that habitat adversely.

It is environmentally damaging

Which observation proves that a cell is a eukaryote?

Answers

A Eukaryote has a nucleus.

Answer:

The cell contains a nucleus

Explanation:

Which of the following is most likely to be a limiting factor for growth on the floor of a tropical rainforest?a.
water
b.
shelter
c.
sunlight
d.
prey

Please select the best answer from the choices provided

A
B
C
D

Answers

Answer: SHELTER C

Explanation:

In which ways are RNA and DNA different?a. RNA has ribose sugar, DNA has deoxyribose sugar
b. RNA has uracil, DNA has thymine
c. RNA is single-stranded, DNA is a double-helix
d. all of the above

Answers

Answer:

d. all of the above is the correct answer.

Explanation:

These are the main difference between RNA and DNA

Sugar present in RNA is ribose sugar whereas sugar present in DNA is deoxyribose sugar.

Nitrogenous bases present in DNA are adenine, guanine, cytosine, and thymine whereas in the case of RNA nitrogenous bases present are adenine, guanine, cytosine and uracil which is replaced by thymine in DNA.

RNA is single-stranded whereas DNA is a double-helix.

thus the all the above(D) options are correct.

Final answer:

RNA and DNA differ in three major areas: the types of sugars they contain, the bases they use, and their structure. RNA contains ribose sugars and the base uracil, while being single-stranded. In contrast, DNA contains deoxyribose sugars, the base thymine, and has a double helical structure.

Explanation:

RNA and DNA, which can both be found in cells, have several significant differences. To answer your question, the correct choice would be (d) all of the above because:

RNA has ribose sugar, while DNA has deoxyribose sugar. The difference is that the deoxyribose sugar in DNA is missing one oxygen atom compared to the ribose sugar in RNA.
RNA contains the base uracil whereas DNA uses the base thymine. This change makes DNA more stable and less likely to mutate.
Finally, RNA is single-stranded and DNA is a double helix. The double-stranded DNA is more stable resulting in a reduction in damage and loss of genetic information.