Need help with this one I don’t understand!!

Answer:

To swim, they move their tails up and down, rather than back and forth as fishes do. This is because whales evolved from walking land mammals whose backbones did not naturally bend side to side, but up and down.

Explanation:

Answer:

A recessive allele isn't shown in the phenotype, but a dominant allele is shown in the phenotype.

Sorry, I don't remember much.

Answer:

movement to and fro or around something, especially that of fluid in a closed system.

Answer:

blood circulation??

Explanation:

Answer:

D

dont forget brainliest :)

Answer:

D

Explanation:

The smaller leaves do not allow the plant to create a lot of chlorophyll, thus it cannot create as much energy, making it grow slower.

Answer:

it's vitamin D

Explanation:

i looked it up on Google

Answer: Osmosis

Explanation: Osmosis is the net movement of water across a selectively permeable membrane driven by a difference in solute concentrations on the two sides of the membrane.

Answer:

B

Explanation:

Answer:

200

Explanation:

Answer:

It’s

800 J

380 calories

1.7 kJ

3500 J

57 kcal

Explanation:

Just got it wrong :(

Answer: the universe keeps expanding

Explanation:

Universe kept expanding is an inaccurate statement on the diagram.

The most popular theory for how the universe came into being is called the Big Bang Theory. Simply expressed, it states that the universe as we now understand it originated from an unimaginably hot and dense single point and expanded over the course of 13.7 billion years, initially at unfathomable speeds and subsequently at a more palpable pace.

The universe's expansion, cosmic microwave background radiation, abundances of the lightest chemical elements, age of the earliest known stars, and abundances of these elements are some of the major evidences for the big bang idea.

Learn more about big bang theory, here:

https://brainly.com/question/1160650

#SPJ5

Answer:

1 - D

2 - G

3 - I

4 - E

5 - A

6 - H

7 - B

8 - F

9 - J

10 - C

Answer: A limiting factor

Explanation: A limiting factor is simply anything in short supply that prevents photosynthesis occurring at its maximum rate. Three factors can limit the rate of photosynthesis: light intensity, carbon dioxide concentration and temperature.

Any factor that prevents any increase in photosynthesis is known as a LIMITING FACTOR.

In conclusion, any factor that prevents any increase in photosynthesis is known as a LIMITING FACTOR.

Learn more in:

https://brainly.com/question/1388366?referrer=searchResults

what do u have to do? do you match them?

Explanation:

budding in Hydra

fragmentation, etc are processes

Answer:

It could be used writing an essay or doing group projects for example you could divide the essay among your group like someone does the introduction and someone does the body or if you are wanting to write a story with people you can divide the different things you need in the story and assign parts to different people.

Explanation:

Answer: we can not see the choices

Explanation:

Answer:

mating rituals

Explanation:

i got it correct

Answer:

CTAATGT i believe.

Explanation:

A=T

C=G

G=C

T=A

If you replace GATTACA with these complementary parts/letters, etc. you will get your answer!

Hope this helps!

Tip: The only thing that changes when finding an RNA strand is that there is Uracil (U). So when finding a complementary RNA strand A=U while everything else is the same.

Answer:

I believe the answer is Dead Bird.

Explanation:

Answer:

It's B, Dead Bird

Explanation:

I hope that helps!!!!!!!!!!!!!!!

Explanation:

Protons and neutrons are subatomic particles found  in the atom of any substance.

These particles collectively determines the mass number of the atom.

Electrons occupy the extranuclear space of an atom.

Answer:

Depends, you have to give us a table, let me explain how to answer this.

Explanation:

“Inside the nucleus,” because the particle is a proton

For this to be true, it has to have a mass (amu) of 1 and it has to have a positive charge

“Inside the nucleus,” because the particle is a neutron

For this to be true, it has to have a mass (amu) of 1 and it has to have a neutral charge

“Outside the nucleus,” because the particle is a proton

This is instantly wrong because protons are located in the nucleus

“Outside the nucleus,” because the particle is an electron

For this to be true, it has to have a mass (amu) of 1/2000 and it has to have a negative charge

Molecules of oxygen and carbon dioxide pass through the membrane via diffusion. However, polar molecules cannot easily pass through the lipid bilayer. They can reach the hydrophobic surface, but can't pass through the lipid layer to the other side of the membrane.

PLEASE MARK ME AS BRAINLIEST

Answer:

1: hydrogen

2: helium

3: iron

Explanation:

In medium-sized stars such as the Sun, nuclear fusion almost always means the fusing of hydrogen nuclei to form helium, but larger stars can produce elements as heavy as iron. The correct options are B, C, and C.

The primary distinction between these two processes is that fission is the splitting of an atom into two or more smaller ones whereas fusion is the fusing of two or more smaller atoms into a larger one.

In nature, fission reactions are uncommon. Many highly radioactive particles are created during fission.

The Sun and other stars are powered by nuclear fusion reactions. In a fusion reaction, two light nuclei fuse to form a single heavy nucleus. The process releases energy because the overall mass of the resulting single nucleus is less than the mass of the two initial nuclei.

Therefore, the correct options for 1, 2, and 3 are B, C, and C, respectively.

Learn more about Nuclear fusion here:

https://brainly.com/question/12701636

#SPJ7

Answer:

Greenhouse gases, such as carbon dioxide, methane, nitrous oxide, and certain synthetic chemicals, trap some of the Earth's outgoing energy, thus retaining heat in the atmosphere. This heat trapping causes changes in the radiative balance of the Earth—the balance between energy received from the sun and emitted from Earth—that alter climate and weather patterns at global and regional scales.

Multiple lines of evidence confirm that human activities are the primary cause of the global warming of the past 50 years.1 Natural factors, such as variations in the sun's output, volcanic activity, the Earth's orbit, the carbon cycle, and others, also affect Earth's radiative balance. However, beginning in the late 1700s, the net global effect of human activities has been a continual increase in greenhouse gas concentrations.

This change in concentrations causes warming and is affecting various aspects of climate, including surface air and ocean temperatures, precipitation, and sea levels. Human health, agriculture, water resources, forests, wildlife, and coastal areas are all vulnerable to climate change.

Many greenhouse gases are extremely long-lived in the atmosphere, with some remaining airborne for tens to hundreds of years after being released. These long-lived greenhouse gases become globally mixed in the atmosphere and their concentrations reflect past and recent contributions from emissions sources worldwide. Others, like tropospheric ozone, have a relatively short lifetime in the atmosphere.

Explanation:

Brainliest please?

Answer:

Ozone

Explanation:

Answer:

This question is incomplete

Explanation:

This question is incomplete and hence makes it difficult to be accurate because of the absence of options. However, for the first blank space, what human cells have in common (with each other in the same body) is the genetic composition thus it can be said that regardless of the the type of cells, almost all of them have the same DNA or genes. However, presence of the same DNA does not mean they carry out the same function. This is as a result of a process known as differentiation.

The cytoskeleton's main structure that provides support, structure, and holds the organelles in place is microtubules and the correct option is option B.

Microtubules are the main structure of the cytoskeleton. They are composed of tubulin protein subunits and play a crucial role in providing support, structure, and maintaining the shape of the cell.

Additionally, microtubules are involved in various cellular processes, including cell division, intracellular transport, and the positioning of organelles within the cell. They form a dynamic and flexible network that contributes to the overall stability and organization of the cell's interior.

Thus, the ideal selection is option B.

Learn more about Microtubules, here:

https://brainly.com/question/33376395

#SPJ5

Conservation of matter is the law that states the amount of matter involved and produced. The reaction, 6H₂O + 6CO₂ → C₆H₁₂O₆ + 6O₂ follows the law. Thus, option C is correct.

Conservation of matter has been the law used in science that defines the amount or the mass of the matter to remain the same even after undergoing a chemical reaction where the reactant yield product.

In some cases, the matter seems to be lost but in reality, it is due to the change in the phase of matter. So, the mass in a system is a constant that is neither added nor removed.

The equation, 6H₂O + 6CO₂ → C₆H₁₂O₆ + 6O₂ best represents the law of conservation as there are 12 hydrogens, 6 carbon, and 18 oxygen on both sides of the reaction.

Therefore, option C. 6H₂O + 6CO₂ → C₆H₁₂O₆ + 6O₂ follows the law of conservation of mass.

Learn more about the conservation of matter, here:

https://brainly.com/question/9434062

#SPJ2