help pls should be easy?​

Answer:

c. The founder of the modern environmental movement and author of Silent Spring is Rachel Carson

d. Deciduous trees such as most pines do not lose their leaves/foliage in winter.

Explanation:

Yes, Rachel Carson is the founder of the modern environmental movement as well as author of Silent Spring. She was an American marine biologist, author, and conservationist which started the modern environmental movement in order to save the environment form pollution. Yes, the Deciduous trees such as most pines do not lose their leaves/foliage in winter, they only lose those leaves that are too old. They are considered as evergreen plants.

Answer:

Weight: newtons, kilograms and changes when gravity changes

Mass: does not change when gravity changes, the amount of matter in something, and a gravitational force

Hope I get this right :)

Answer:

Weight is measured in Newtons, mass is measured in kilograms, mass does not change when gravity changes; weight does, mass is the amount of matter in an object, and weight is a gravitational force

Explanation:

Weight is measured in Newtons, mass is measured in kilograms, mass does not change when gravity changes; weight does, mass is the amount of matter in an object, and weight is a gravitational force

Answer:

Vegetation cover is also significantly impacted by human activities. Changes in land use resulting from human activities such as urbanization and agriculture are important factors influencing the spatial pattern of vegetation.

Answer:

Vegetation plays a vital role in our natural ecosystem and also supports the biosphere in various ways; vegetation helps to regulate the flow of numerous biogeochemical cycles, most importantly those of water, carbon, and nitrogen; it also contributes in the local and global energy balances. With the continuous increase in the population, the negative impact of human activities on the ecological environment is also increasing, such as overgrazing caused by the rapid increase of livestock.

Answer:

no entiendo este idioma soy nuevo y hablo español

Answer:

A

Explanation:

The distance between the earth and the sun does not affect the seasons.its the tilting of the earth and the planets movement the sun.

I hope it helps

Answer:

Answer is A)

Explanation:

indirect sunlight striking earth

Answer:

So the egg definitely came first.

Explanation:

Dinosaurs laid eggs, the fish that first crawled out of the sea laid eggs, and the weird articulated monsters that swam in the warm shallow seas of the Cambrian Period 500 million years ago also laid eggs. They weren't chicken's eggs, but they were still eggs.

Answer:

C The sarcomere is contracted, and the actin and myosin filaments are completely overlapped.

Explanation:

In rest, the tropomyosin inhibits the attraction strengths between myosin and actin filaments. Contraction initiates when an action potential depolarizes the inner portion of the muscle fiber. Calcium channels activate in the T tubules membrane, releasing calcium into the sarcolemma. At this point, tropomyosin is obstructing binding sites for myosin on the thin filament. When calcium binds to troponin C, troponin T alters the tropomyosin position by moving it and unblocking the binding sites. Myosin heads join the uncovered actin-binding points forming cross-bridges, and while doing so, ATP turns into ADP and inorganic phosphate, which is released. Myofilaments slide impulsed by chemical energy collected in myosin heads, producing a power stroke. The power stroke initiates when the myosin cross-bridge binds to actin. As they slide, ADP molecules are released. A new ATP links to myosin heads and breaks the bindings to the actin filament.  Then ATP splits into ADP and phosphate, and the energy produced is accumulated in the myosin heads, which starts a new binding cycle to actin. Finally, Z-bands are pulled toward each other, shortening the sarcomere and the I-band, producing muscle fiber contraction.

In the sarcomere, which is the contractile unit of skeletal muscles, there are

When the muscle contracts, the muscular fiber gets shorter and thicker due to the reduction in the length of the sarcomere. The H line and the I band get shorter. The Z lines get closer to the A band, meaning that they get closer to each other. A band keeps constant in length. This change is produced by movement mechanisms that involve a change in the relative position of actin and myosin filaments.

Answer:

C

Explanation:

edge 2021

Answer:

they transferred to genes..and translated by RNA

Explanation:

protein form..(hereditary)

Saliva mixes with food and changes starches into sugars is the beginning step of the digestion.

Saliva is the medium that bathes the taste receptors in the oral cavity and in which aroma and taste compounds are released when food is eaten.

It is composed of water, mucus, proteins, mineral salts, and amylase. As saliva circulates in the mouth cavity it picks up food debris, bacterial cells, and white blood cells.

Saliva moistens the mouth for comfort, lubricates as you chew and swallow, and neutralizes harmful acids. It also kills germs and prevents bad breath, defends against tooth decay and gum disease, protects enamel, and speeds up wound healing.

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Answer:

9. Bees play a very important role in relation to agricultural production. Indeed beekeeping is a vital part of our agricultural system. Apart from crop plants which are highly dependant on bees, the presence of honey bees also improves the quality and quantity of crops in general.

10. Use insect repellent. Permethrin-impregnated clothing and insect repellent have not been proved to be particularly effective against tsetse flies, but they will prevent other insect bites that can cause illness. The World Health Organization has targeted West African trypanosomiasis for elimination as a public health problem by 2020.

Explanation:

Answer:

hyphae

Explanation:

In the asexual phase of their life cycle, the hyphae produce sporangiospores. The group of fungi known as Zygomycota develop sporangia within a sac, which bursts to release the spores, germinating into a new hypha.

Answer:

c. mitochondria

Explanation:

I guess it's due to sunlight being energy and mitochondria uses energy

Answer:

C.  Ivan gets him.

Explanation:

Richard Connell's "The Most Dangerous Game" is about Sanger Rainsford, a famous hunter who cared less about his prey. But then the tables turned and he became hunted instead of being the hunter, thereby presenting the theme of civilization and savagery, conscience, etc.

After Rainsford reached "Ship Trap Island", he discovered that there lived someone, Colonel Zaroff. But soon, he became aware of the "game" that the colonel likes to hunt. Refusing to be a part of the hunt, he was offered to be either the prey (which leaves him a choice of being free if he survives 3 days being hunted) or be killed anyway by Ivan, the Cossack.

Thus, the correct answer is option C.

Answer:

Photosynthesis is the process by which plants convert sunlight into energy.

Explanation:

Answer:

This question lacks options, options are: A) Heterochromatin and euchromatin

B) Uniform in the genetic information they contain

C) Separated by large sketches of repetitive DNA

D) Each void of typical protein-coding sequences of DNA

E) Void of introns.  

The correct answer is A.

Explanation:

The chromatin or substance that makes up the nuclei of cells and that results from the interaction of DNA with histonic and non-histonic proteins and RNA; it can present different degrees of packing or contraction. When chromosomes are stained with chemicals that bind to DNA, densely stained regions and less densely stained regions appear. Heterochromatin are segments of the chromosome that stain strongly and remain visible, practically, during the entire cell cycle. There are few genes in these regions and therefore low transcriptional activity. They are supercondensed regions. Euchromatin are segments of the chromosome that are not visible during telophase and interphase, only in metaphase. It corresponds to regions that are less compact and in which there is a higher gene density.

Answer:

water is a reactant because it reacts with carbon dioxide to form the products above

Answer:

Telomere

Explanation:

The correct answer would be telomere hypothesis.

The telomere hypothesis is the main hypothesis that links aging, otherwise known as senescence, to the shortening of telomeres. Telomeres are short DNA nucleotides found at the end of each chromosome of humans.

The hypothesis postulates that loss of telomeres in the vegetative cells of the body is primarily responsible for cell aging or senescence.

Hence, the correct answer would be the telomere hypothesis.

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Answer:

The Cell Membrane is the outer layer of a cell that separates it from the In both plant and animal cells, the cell membrane is found.

In an animal cell, it is located just within the cell wall, while in a plant cell, it is located just inside the cell wall. Cholesterol is present in the membrane of animal cells, but not in the membrane of plant cells.

Explanation:

An animal cell's outermost layer is the cell membrane.

It is found immediately under the outermost cell wall layer in plant cells.

It is made up of the following components:

Answer:

it is Active transport.

Answer:

water

Explanation:

because the surface of water is slippery

Answer:

The major cause of the change that society had on its view on smoking since 1960 was because of scientific information wherein scientists found that smoking causes cancer. The smoke of cigarette contains around 70 chemicals called carcinogens. These are known to cause cancer.So that, society has changed its view on smoking since 1960.

Explanation:

..!

Answer:

Yes

Explanation:

Because they have both living and non living characteristics so it is hard to classify them as they posses living characteristics as reproduction and others when inside the host and posses non living characteristics when outside the host

In microorganisms micro means small and organism means living ones, so those living ones which are not seen without the help of a microscope, are microorganism.

Viruses are obligate parasites and are very small in size. Viruses cannot live outside the host cells as they require host cell gene expression machinery to divide and perform metabolic reactions. Viruses remain inactive in the environment until found the host cells.

As viruses cannot qualify the criteria of living beings because they cannot survive separately in the evnironment,  that's why cannot be considered living organisms.

Mostly microorganisms are single-celled organisms like bacteria, fungi, and protozoa. Viruses are not considered microorganisms because they are nonliving outside the host body.

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Answer: The answer would be Silicate

Explanation: They are made out of silicon and oxygen

Answer:

a. 40 percent

Explanation:

Answer:

a. 40%

Explanation:

The continental crust covers 40% of the Earth's surface.

At 25 to 70 km, continental crust is considerably thicker than oceanic crust, which has an average thickness of around 7–10 km. About 40% of Earth's surface area and about 70% of the volume of the Earth's crust is the continental crust. Most continental crust is dry land above sea level.

Answer:

Probability of having haemophilia for the cross having genes Hh and Hh is 25 percent. Probability of having haemophilia for the cross having genes hh and hh is 100 percent.

Explanation:

Answer:

C. 50%

Explanation:

correct on edg.

Answer:

Soybean oil is used in food production and cooking. True

In 2007, the United States produced 3.06 billion bushels of soybeans, and 65% of the harvest was used to make soybean oil. True

billion bushels of soybean oil were used for other purposes. False

Explanation:

Soybean oil is used in food production and for the purpose of cooking. The United States produced about 3.06 billion bushels of soybeans, and 65% of the harvest was used to make soybean oil in the year 2007. No, billion bushels of soybean oil were not used for other purposes such as in paints whereas large amount of soybean is used as a cooing oil which have many health benefits.

Answer:

1.071 billion

Explanation: