Study the timeline.


Based on the timeline, about how many years ago could the oldest mammalian organism have lived?

5 million years
200 million years
1.5 billion years
4.5 billion years

Answer:

The correct answer is energy. Other organisms are not necessary, just like offsprings since there are many organisms that never have offsprings. Light is also not necessary with numerous organisms, especially those like the ones that live deep in the sea where light never reaches. Some form of energy is necessary for everyone.

I guess the answer is most likely b) they are rare.

solar eclipses can occur fairly often, sometimes 2-4 times a year

The statement about solar eclipses that is false is the statement that; "they occur during the full moon phase."

An eclipse is said to occur when one celestial body casts a shadow on another celestial body. A solar eclipse occurs when the moon comes in between the sun and the earth such that a shadow of the moon is cast on the earth. A solar eclipse may be partial or complete.

The statement about solar eclipses that is false is the statement that; "they occur during the full moon phase."

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Answer:

D. Plants grow best in sunlight.

Explanation:

The other answers can't be scientifically proven, therefore they would not make a good hypothesis. A hypothesis is a statement that can be tested and verified.

Plant will grow best in sunlight. So, the correct option is (D).

According to the evolution-immunity hypothesis in ecology, fast-growing plant species should suffer more from herbivores and pathogens than slow-growing species. Tests of this hypothesis have focused on above ground plant tissues, herbivores and pathogens. This should also apply to route defense.

When the amount of fertilizer applied to the plants is increased, the growth which is the height of the plant increases. As the amount of fertilizer increases, plant growth increases.

Plant growth shall be considered as an increase in plant volume and/or mass with or without the formation of new structures such as organs, tissues, cells or cell organelles that grow in the presence of sunlight.

Thus, plant will grow best in sunlight. So, the correct option is (D).

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Answer:

C, forest.

Explanation:

Trees are easily replaceable. With the other options, those are all considered non renewable energy sources. Those take millions of years to form. When we look at fishery, people can do what's called "overfishing" when they fish too much faster than fish can reproduce. Therefore making C your best answer choice.

Answer:

Chicken eggs grow larger compared to other eggs due to their relative body sizes.

Explanation:

Egg laying and the size of an egg is relative to the size of the organism. So an ostrich lays a really large egg because it is a larger animal and can handle that size. Whereas a bluebird lays a small egg because it is a small bird.

Genes determine eye color, large nose and brown eyes. Therefore, option (C) is correct.

A gene is the fundamental structural and operational component of hereditary material. DNA is the material that constitutes genes. Some genes' sole purpose is to provide instructions for making larger molecules known as proteins. However, many genes do not contain the coding necessary to produce proteins. Genes in humans can be as small as a few hundred DNA bases or as large as more than 2 million DNA bases.

Many of your characteristics, such as the color of your hair and skin, are determined by the genes that were passed down to you.

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Answer:

Mildew is more identifiable and can be treated with store bought cleaner, but other fungi can be the result of a larger infestation

Answer:

Cells typically communicate using chemical signals.

Explanation:

hope this helps :)

Answer:

B. Rotates from east to west.

Explanation:

Earth's spin (or rotation) on its axis. Earth rotates or spins toward the east, and that's why the Sun, Moon, planets, and stars all rise in the east and make their way westward across the sky.

Answer:

Structure A

Explanation:

Malfunction proteins happen when it changes the instructions for a gene to make a protein. This change or "malfunction" can disrupt any protein and cause not to work at all. When in a mutation occurs and changes the protein, it can change the development and cause serious medical conditions for a person.

Labels of the cell can be found here;

Protein malfunction typically occurs in the Chloroplast.

A picture of a cell can be found below for extra clarification if needed.

Best of Luck!

Answer:

c

Explanation:

Chemotherapy i.e. use of drugs to destroy the cancer cells by inhibiting their growth and division. Therefore, option (A) of interrupting stages in cell cycle is correct.

Chemotherapy is a medication that employs strong chemicals to destroy rapidly developing cells in your body. Chemotherapy is most commonly used to treat cancer because cancer cells grow and proliferate significantly faster than the rest of the body's cells. There are several chemotherapy medicines available.

Taxol (Paclitaxel) and other drugs that poison microtubules and impede the mitotic spindle have been used extremely efficiently in chemotherapy. This prevents cancer cells from proliferating and kills them.

Therefore, pharmaceutical researchers uses drugs to learn cancer treatment. Option (A) is correct.

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Answer:

Just like the Earth, half of the Moon is lit by the Sun while the other half is in darkness. The phases we see result from the angle the Moon makes with the Sun as viewed from Earth. ... We only see the Moon because sunlight reflects back to us from its surface.

May I please have a brainliest? <3

Hope this helps-xoxo

Answer:

The rotation and revolution of the Moon around the Earth. And the Sun' s light reflecting off the surface of the moon

Explanation:

Answer:

1. It produces a very deep sound.

2. It combines the vocal and vestibular folds at the same time.

3. It causes the vibration of the vestibular folds. A vibration cycle culminates at the second vibration.

4. There are basically two types, namely the Dag and Xovu styles.

5. It resembles a Tibetan Buddhist chant.

Explanation:

Khoomii, also known as Tuvan throat singing is a way of singing mostly characterized by the production of deep sounds and vibrations. A basic pitch which is supplemented by another pitch combine to produce the sound.  It is sung by the locals in Siberia and Tuva.

Kargyraa is one of the four forms of this song and it typically involves the production of deep sounds and some vibrations of the vestibular folds at times. There are two basic types which are the Dag and Xovu. It also has a similarity to the chant produced by the Tibetan Buddhists.

Answer:

Titín is the largest know protein with the greatest number of animo

The largest known protein with the greatest number of amino acids is titin.

Titin or connectin  is a largest protein  in humans which is encoded by the TTN gene, having greater than 1 µm in length and it functions as a molecular spring  responsible for the passive elasticity of muscle.

It consist of 244  folded protein domains connected by unstructured peptide sequences, when the protein is stretched, the domains will unfold.

Titin protein involve in the contraction of striated muscle and connected  the Z line to the M line in the sarcomere, contributes to force transmission at the Z line.

It limits the motion range of the sarcomere during tension,  so it involve in the contribution of  passive stiffness of muscle, it is the third most abundant protein in muscle after myosin and actin.

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Answer:

NUCLEUS

Genome structure

Explanation:

Answer:

1m=100centimeters

Explanation:

Explanation:

.For the our health because if the environment is saved the we are able to get the fresh air.

.For decreasing global warming because if environment is saved then the pollution is controlled.

.For decreasing deforestation which can control landscape because saving the environment can also be taken as saving trees.

For saving the animals because the habitat of animal is forest which need to be protected by protecting environment.

.For saving the natural resource which are also the reasons of income because it attracts tourists.

Answer:

true

Explanation:

Answer: true

Explanation: Cells come in various shapes and sizes depending upon their function. ... Cells combine to form organ systems, organ systems combine to form tissue, and tissues combine to form organs. (this is off google so it is copyright.. you might want to summarize)

Answer:

Adaption radiation

Explanation:

This process explains how organisms transform rapidly due to the changes within their environment. When a change occurs it created new challenges, new resources are available, as well open up to new environmental niches.

Answer:

Wind

Explanation:

The organic molecules that are classified as carbohydrates are ; ( C ) Sugars

Carbohydrates are classified as monosaccharides, disaccharides, and polysaccharides. under the monosaccharides we have the simple sugar with formula ; C₆H₁₂O₆ .

When carbohydrates rich food substances are consumed they are broken down into sugar so that the human body can easily absorb it.  therefore the organic molecules that can be classified as carbohydrates are sugars while proteins are broken down into amino acids.  

Hence we can conclude that The organic molecule that is classified as carbohydrates is ; ( C ) Sugars

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Answer:

Reservoir

Explanation:

Answer:

reservoir

Explanation:

Answer:

A healthy environment means the surroundings full of positivity , pollution free , nature that benefits your mind . A good environment makes our mind relax we can think good and positive thoughts . we can spend our lives stress free .

Answer:

turner syndrome

Explanation:

no extra x, is visible

Answer:

turner syndrome

I wonder what sort of stuff happens up there that nobody is aware of. All the different kinds of possibilities. And if there is life, then what would they be doing and how are their ways of life?

Answer:

Glucose is form of carbohydrates. 6 atoms of carbon. 12 atom of hydrogen.

Explanation:

Answer: tissue

Explanation:

Answer: side: plaintiff

witness: Mr. King

evedence: dog will only attack if you are on the land he is protecting

window was broken so he was trying to rob the place

guard dog was trained to attack on command

hope this helps you out

Explanation: