A marine biologist measured the amount of heat radiated from an aquarium over the course of an experiment. His measurements are shown in the graph below.


Graph shows heat, measured in Joules, radiated from an aquarium over time, measured in seconds. At 0 seconds, the energy, in the form of heat, is 1.2 Joules. At 5 seconds, the energy is 1.6 Joules. At 10 seconds, the energy is 1.3 Joules. Finally at 15 seconds, the energy is 1.5 Joules.


Based on this data, he concludes that the aquarium cannot be considered a closed system for this experiment. Explain why this conclusion is invalid.


A closed system exchanges both matter and energy with its surroundings, and the scientist only measured the exchange of heat.

A closed system can exchange energy but not matter with its surroundings, and the scientist did not measure the movement of matter.

A closed system exchanges all of its energy with its surroundings, and the scientist only measured the exchange of heat.

A closed system exchanges all of its matter with its surroundings, and the scientist did not measure the movement of matter.

Answer:

1 anther

2 petal

3 style

4 sepal

5pollen tube

6 corolla

7 ovary

8 ovule

9 filament

10 stigma

Answer:

Cell A= Intestinal cell begining mitosis

Cell B= Skin cell in S phases

Cell C= sperm cell

Cell D= bone cell just beginning interphase

In this particular insertion there is an insert of three bases. Complementary strands in DNA are the opposite strand, so Adenine is coupled to Thymine and Guanine is coupled to Cytosine.

Answer:

I think the answer is TRUE

sorry if im wrong

Explanation:

Answer:

False because it is a bacteria fungus :3

Explanation:

:3

Answer:

connecting amino acid together to form proteins

hope it will help

Option D is correct. "connecting amino acid together to form a protein" is not a function of tRNA

Unlike DNA, there are three types of RNA that are involved in protein synthesis, messenger RNA, ribosomal RNA, and transfer RNA.

Ribosomal RNA (rRNA) and transfer RNA (tRNA) are not copies of the info in DNA, instead, their codes are created while in the DNA and then cut into smaller coded fragments.

Transfer RNA (tRNA) is found in cells' cytoplasm and ensures the correct amino acids are carried to mRNA codons to form polypeptide chains during protein synthesis. tRNA takes the amino acid to the correct location for protein synthesis in the ribosome.

Some of the functions of tRNA include:

According to the explanation above, we can see that "connecting amino acids together to form a protein" is not a function of tRNA

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Answer:d.Additional evidence will change the theory of evolution into a law.

Explanation:

Answer:

The bones of a synovial joint are surrounded by a synovial capsule, which secretes synovial fluid to lubricate and nourish the joint while acting as a shock absorber. The ends of the joint bones are covered with smooth, glass-like hyaline cartilage which reduces friction during movement.

Explanation:

hope this helps

Answer:

C it is.

Explanation:

Explanation:

The contraceptive injection is a shot that contains hormones, either a progestin alone, or a progestin and an estrogen together, that stop your body from releasing eggs and thickens the mucus at the cervix. You need one shot either once every month or once every three months from a healthcare provider. However once injected, it is not reversible, i.e. in case of side effects it cannot be stopped. The way it works is similar to the pill, or the ring, except you don’t have to remember to take it every day or week, but it probably isn’t the best choice for those scared of needles.

Answer:

the answer is false

Explanation:

Answer:

It's false, because rough endoplasmic reticulum is the site of protein synthesis, not smooth endoplasmic reticulum, the smooth ER is the site of lipids, not protein synthesis :3

Explanation:

:3

tbm queria saber essa pergunta!!

Answer:

Dead zones are generally caused by significant nutrient pollution, and are primarily a problem for bays, lakes and coastal waters since they receive excess nutrients from upstream sources. Excess nitrogen and phosphorus cause an overgrowth of algae in a short period of time, also called algae blooms.

hope it helps!

please mark as the brainliest!

Answer:

KrF2 + H2O -> Kr + O2 +2HF

Explanation:

You would just need to add a 2 on the HF, because on both sides it can balance with 2F's and 2 H's

After passing through the distal convoluted tubule, the filtrate drains into the collecting duct. Thus, B would be the correct answer.

Answer:

The three tenets to the cell theory are as described below: All living organisms are composed of one or more cells. The cell is the basic unit of structure and organization in organisms. Cells arise from pre-existing cells.

Explanation:

Can I have brainliest?

Answer:

Answer: 1) All the living organims are compound by one or more cells . 2) The cell is the structural and functional basic unit of life. 3) All cells are originated from other cells.

Explanation: Cell theory describes the characteristics of living organisms and was proposed and refined by many scientists like Schwann and Schleiden. The first principle describes the constitution of living organisms, all of them, unicellular or multicellular are compund by cells. The second principle says that cell is the unit of life in fuctions as metabolism and structural as in tissues. The third principle says that cells can only be generated by division of preexisting cells.

Explanation:

Answer:

pollution doesn't nessairly stay in the atmosphere, it is moved throughout the atmosphere and can be removed by a natural process.

Explanation:

Fat molecules consist of three fatty acid chains connected by a glycerol backbone. Fatty acids are basically long chains of carbon and hydrogen and are the major source of energy during normal activities.

Fatty acids are broken down by progressively cleaving two carbon bits and converting these to acetyl coenzyme A. The acetyl CoA is the oxidized by the same citric acid cycle involved in the metabolism of glucose. For every two carbons in a fatty acid, oxidation yields 5 ATPs generating the acetyl CoA and 12 more ATPs oxidizing the coenzyme. This makes fat a terrific molecule in which to store energy, as the body well knows (much to our dismay).

The only biological drawback to this, and other, forms of oxidative metabolism is its dependence on oxygen. Thus, if energy is required more rapidly than oxygen can be delivered, muscles switch to the less efficient anaerobic pathways. Interestingly, this implies that an anaerobic workout will not "burn" any fat, but will preferentially deplete the body of glucose. Of course, your body can't survive very long on just anaerobic metabolism...it just can't generate enough energy.

Answer:

50% or 1/2

Explanation:

This question involves a single gene coding for ear length in dust bunnies. The allele for short ears (S) are dominant to the allele for long ears (s). This means an heterozygous individual (Ss) will possess short ears.

According to this question, If a heterozygous female (Ss) mates with a long ear male (ss), the parents will produce gametes as follows:

Ss - S and s

ss - s and s

Using these gametes in a punnet square (see attached image), the following proportion of offsprings will be produced:

Ss, Ss, ss, ss

- Ss (1/2 or 50%) offsprings will have short ears.

- ss (1/2 or 50%) offsprings will have long ears.

Answer:

amino acids, proteins, living cells, tissue, organs, living things

Explanation:

Amino acids make up proteins. Proteins can be found in cells. A group of cells is a tissue. A group of tissues is an organ. A group of organs make an organ system. And a group of organs systems make a living thing.

Answer:

through nuclear fusion

Answer:

D A C B

Explanation:

i hope its right

Answer:

You answer is B

Explanation:

This is the only possible answer because when animals die they might get trapped under layers of bone conserving the bone, and B is the answer because if bones are conserved in the sediment Scientists may be able to recognize certain animals for example, 1000 years ago a cow dies and is buried by sediment, the skeleton remains allowing scientists in the present year to analyze it, they might notice slight changes in things like the bones, or the teeth, etcetera, thus this is how Scientists found proof of evolution.

Answer:

It's true!!!!!❤️❤️❤️❤️

Structure D , The term "contractile vacuole" refers to this structure. The vacuole gathers extra water from the cytoplasm and contracts to release it. As a result, paramecium doesn't swell and explode in hypotonic liquids.

Specialized contractile vacuoles control the amount of water in cells. Its spherical form allows it to gather extra cell fluid and empty it outside. It is essential for preserving the osmotic pressure inside the cell. Protists are eukaryotes with only one cell and are found in wet and aqueous habitats.

As its name implies, the contractile vacuole expels water from the cell by contracting. The contractile vacuole periodically expands (collecting water) and contracts (releasing water). Several seconds are required for one cycle, depending on the species .

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Answer:

a complicated food chain

Answer:

d

Explanation:

Tropical rainforests are found closer to the equator where it is warm. Temperate rainforests are found near the cooler coastal areas further north or south of the equator. The tropical rainforest is a hot, moist biome where it rains all year long.

Tropical rain forests and temperate forests are different because temperate forests have more seasonal changes.

Tropical rainforests are found closer to the equator having less seasonal changes while on the other hand, temperate rainforests are found near the cooler regions having more seasonal changes.

So we can conclude that tropical rain forests and temperate forests are differen because temperate forests have more seasonal changes.

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Answer:

A or C

Explanation:

B and D are plain illogical. C is definately true, but since it's a little too broad I'm thinking that it would be A, since natural disasters can decrease populations which can destroy genetic diversity (see founders effect).

Answer:

The correct answer is C. I just took the test on plato

Answer:

l

Explanation:

Answer:

D) It contains compounds and is therefore a substance

Explanation:

A mixture is composed of multiple compounds.