BIOLOGY HIGH SCHOOL

Density is mass per unit of volume. Which pair of lab instruments would a student use to measure the density of seawater?

Answers

Answer 1
Answer: Unfortunately, we are not given with the choices in which we could have chosen our answers from. However, in order to determine the mass of an object, we use the balance or the weighing scale. Also, for the volume of the water by graduated cylinder. Then, we divide the mass by the volume.
Answer 2
Answer: In order to measure density, a measurement of volume and mass is required. To measure the density of seawater, the volume could be measured using a glass graduated beaker and the mass could be measured using a set of digital scales. Be sure to take into account the mass of the beaker.

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MIDDLE SCHOOL

What process is responsible for building successive rock layers on earth

Answers

The answer is deposition.

Answer:

deposition.

Explanation:

HIGH SCHOOL

Which exercise technique relies on awareness of an essential life force?​?

Answers

The exercise technique that relies on awareness of an essential life force is MINDFUL EXERCISE.
Mindful exercise involves the act of using meditation to relieve stress and to improve fitness. It is the psychological process of focusing one's attention on the present happenings and it is usually done through the act of meditation and other training.
 Common benefits of mindful exercise include: improved muscular fitness and flexibility, improved balance control, mood enhancement, stress control, etc. 
COLLEGE

Migratory birds in the tundra feed mostly on?

Answers

Migratory birds in the tundra feed mostly on? answer is Flies and Mosquito 
Flies and Misquitos I hope i helped
HIGH SCHOOL

Zebra herds that live and move together are an example of what type of dispersion?

Answers

Zebra herds that live and move together as one are a great example of uniform dispersion. Uniform dispersion is when objects are more or less equally spaced apart from each other.
COLLEGE

Meselson and Stahl used density labeling of DNA to show that DNA replication occurs via a semiconservative mechanism. In their experiment, they started with an organism grown in a heavy density label (15N). After two generations of growth in light medium (the more common 14N isotope), if the DNA is isolated and separated by density, how many bands would be observed and how would their density compare with the starting DNA

Answers

Answer:

  • The organism previously used 15N for replication so all the DNA molecules were of 15N15N type. Then the organism is shifted to a medium where only 14N is available for replication.
  • According to semi conservative mode of replication, a newly synthesised DNA molecule consists of one new strand and one parental strand. So after the first round of replication, All the 15N strands will synthesise new DNA strands using 14N resulting into intermediate 15N14N DNA molecules. Hence, only one band would be observed (15N14N) above the original 15N15N band since 15N14N has lighter isotope too so it will be lighter than 15N15N molecules and will lie above it.
  • After second round of replication, 15N strand from 15N14N would synthesise another 14N strand. 14N strand from 15N14N molecules will also synthesise another 14N strand. So now, 50% of the DNA molecules will be of 15N14N intermediate type and 50% of them will be of 14N14N type.Two bands will be observed above the original 15N15N band. One band of 15N14N molecules will be right above it and other band of 14N14N molecules will be even higher because it is the lightest band since it has only the lighter isotope of nitrogen.
HIGH SCHOOL

Which of these food is a good source for long term energy

Answers

Where are the answer choices.
HIGH SCHOOL

The most forward part of the frontal lobe of the cerebral cortex, known as the ____, is involved with ____.

Answers

Your question is quite in a wrong order. however, I reordered it. see below:

The most forward part of the cerebral cortex, known as the ____, is involved with ____.

Answer: Frontal lobe; Cognitive functions

Explanation:

The frontal lobe is one of the four lobes alongside temporal, Occipital and parietal lobes, found in the cerebrum, a part of the brain covered by cerebral cortex.

Of all four lobes, the frontal lobe occupy the forward position i.e it is in front of all other lobes. And its function is primarily to control logical reasoning (cognitive) functions

HIGH SCHOOL

Multicellular plants and animals having an organ of perform specific functions. What do Eukaryotic sales have to perform a Specific functions

Answers

All species of animals, land plants and most fungi are multicellular, as are many algae, whereas a few organisms are partially uni- and partially multicellular, like slime moldsand social amoebae such as the genus Dictyostelium.

Multicellular organisms arise in various ways, for example by cell division or by aggregation of many single cells.[2] Colonial organisms are the result of many identical individuals joining together to form a colony. However, it can often be hard to separate colonial protists from true multicellular organisms, because the two concepts are not distinct; colonial protists have been dubbed "pluricellular" rather than "multicellular".[3][4]

Answer:

organelles

Explanation:

Eukaryotic cells may contain several other types of organelles, which may include mitochondria, chloroplasts, the endoplasmic reticulum, the Golgi apparatus, and lysosomes. Each of these organelles performs a specific function critical to the cell's survival.

MIDDLE SCHOOL

Which criteria do scientists consider when they classify soil? Check all that apply. soil profile climate soil composition bedrock soil horizon

Answers

Answer:

Climate and soil composition

Explanation:

Answer:

soil profile soil composition

Explanation:

i made a 100%

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