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Karolina [17]
3 years ago
6

After watching a show about submarines, Jamil wants to learn more about the oceans. Which question could be answered through sci

entific investigation?
Which ocean has the best beaches?
Which type of whale is the most popular?
What ocean has the best scuba diving spots?
What substances dissolve in ocean water?
Biology
2 answers:
Rom4ik [11]3 years ago
6 0

Answer: D

Explanation: Just a summary Of what the other person said.

faust18 [17]3 years ago
5 0
Answer: What substances dissolve in ocean water.
This is the only question that can be answered through scientific investigation because it is the only question that can be tested. The other questions cannot be answered through scientific investigation because they based on opinions which are more abstract.
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What element is found in all organic compounds? oxygen nitrogen carbon helium
harkovskaia [24]
The answer is carbon

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3 years ago
Read 2 more answers
Meselson and Stahl's experiments proved that DNA replicates by which mode?
Irina18 [472]

Answer:

Semi-conservative

Explanation:

Meselson–Stahl experiment proved that DNA replication is a semiconservative process, feeding E. colo bacteria with different types of Nitrogen isotopes (N14 and N15).

Changing the type of radioactive compound in different times of bacteria grow, they could observe that both of the isotopes were present on the bacteria culture.

Basically, if the bacteria present both of them, the DNA was replicated semiconcervely.

Guess what? they show both! (See the image for more information)

6 0
3 years ago
In a disputed parentage case, the child is blood type AB, while the mother is blood type AB. What are the possible blood type(s)
Arisa [49]

Answer:

If the child has blood type OO and his mothes has AO type, the father must have O in his genotype: A(AO), B(BO), O(OO). The male phenotype AB exclueds him as father.

3 0
2 years ago
Which of the following processes is key to producing gametes?
Serggg [28]

Answer:

meiosis

Explanation:

Gametes are formed through meiosis (reduction division), in which a germ cell undergoes two fissions, resulting in the production of four gametes. During fertilization, male and female gametes fuse, producing a diploid (i.e., containing paired chromosomes) zygote

plz brainlist me

4 0
2 years ago
Need help with this please
wolverine [178]

Answer: movement is always voluntary

Explanation:

Muscles are contractile:

- Contractility is the ability of muscle cells to forcefully shorten. Think of having the ability to flex a muscle.

Muscles are excitable:

- Excitable tissue can conduct or transmit electrical impulses. Basically, it can react to stimulus, which may be delivered from a motor neuron or a hormone. For example, the hormone epinephrine helps muscles to produce force.

Muscles respond to stimulus:

- well since muscles are an excitable tissue, they can react to stimulus. (see answer above)

————————

Muscle movement is NOT always voluntary:

- Some muscle movement is voluntary, which means it is under conscious control. For example, a person decides to open a book and read. Other movements are involuntary, meaning they are not under conscious control, such as the contraction of your pupil in bright light, breathing, blinking, your heart beating, etc.

- Therefore, the correct answer is:

movement is always voluntary

hope this helps :)

3 0
1 year ago
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