Which option correctly describes how Earth’s temperature has changed during its history?


There is not enough data on Earth’s temperature before life appeared.
There is not enough data on Earth’s temperature before life appeared.

Earth started out very cold. Over time, it warmed up.
Earth started out very cold. Over time, it warmed up.

Earth started out with moderate temperatures. The temperatures fluctuated between high and low due to certain events.
Earth started out with moderate temperatures. The temperatures fluctuated between high and low due to certain events.

Earth was initially very hot. It gradually cooled down.

can affect neural, reproductive, immune and cardiovascular function

through air, water, food

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Jessica's symptoms of endometriosis can't be alleviated as its return could be experienced.

This is a disorder which occurs when tissue that is similar to the tissue that lines the uterus grows outside of it.

It is characterized by pain and menstrual irregularities symptoms and is usually managed through hormone therapy as the symptoms can't be permanently alleviated.

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A duplicated homologous chromosome pair contains 4 copies of genes because each chromosome has two copies of gene.

The two homologous copies of gene present in each chromosome so for the two chromosomes, four genes copies are present.

So we can conclude that a duplicated homologous chromosome pair contains 4 copies of genes because each chromosome has two copies of gene.

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During the process of meiosis, a cell with 100 chromosomes will produce 4 daughter cells, each with 50 chromosomes each the end.

Meiosis is a process in cell division and reproduction in which haploid cells are produced from diploid cells.

During meiosis, four daughter cells are produced from a single parent cell with each daughter cell having half the chromosome number of the patent cell.

Therefore, when a cell with 100 chromosomes goes through meiosis, at the end, there are will be 4 daughter cells, each with 50 chromosomes.

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Answer:

Ovary, fallopian tube, uterus

Explanation:

Answer:

b

Explanation:

environmental factors play a very important role in the development of an individual

changes in latitude then lead to adaptation by an individual.....whereas some people who don't study biology still develop.

Answer:

A) Biology

Explanation:

I think the environment will have it's greatest effect on social development

Answer:

Natural selection can only work on heritable traits. Acquired traits are not heritable and are not subject to natural selection. Environmental factors are variable. A trait that is beneficial in one place or time may be detrimental in another place or time.

Answer:

Environmental Justice is the fair treatment and meaningful involvement of all people regardless of race, color, and national origin.

I would appreciate it if you gave a thank you or a brainliest!!

Thanks for asking the question!!

Answer:

Nebraska

Explanation:

"According to the 2019 Cattle Inventory, Nebraska’s 6.8 million head of cattle ranks as the second-highest in the US. With a population of about 1.8 million people, cattle greatly outnumber people in the state. Although Nebraska has recorded minimal growth in its cattle inventory, it remains one of the most important states in terms of cattle production. Agriculture is the biggest industry in Nebraska, and cattle production represents the largest segment of the agriculture industry. The state has approximately 23 million acres of pastureland and rangeland, half of which is located in the Sandhills."

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Water and minerals are transported and used in vascular plants through :

In vascular plants the root hairs in the root take up water and minerals from the soil and this water and mineral is transported to the shoot and leaves of the plants through a tissue known as Xylem.

The phloem transports the food made by the plants which is in the form of organic nutrients such as amino acids.

Hence we can conclude that the correct options to your question are as listed above.

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Answer: "How is the sun a special star?"

Explanation: The sun is our largest energy source, It heats our planet and gives us seasons, It helps plants grow.

Answer:

The addition of transcription factor-binding sites could affect relative DNA replication efficiency in a number of ways. Each added site could produce an additive increase in replication efficiency, or one of the added sites could be responsible for all of the observed increase in RRE.

Answer:

Ubiquitous refers to any living being or the nonliving thing that is present everywhere. Microbes such as bacteria are ubiquitous

Explanation:

.

Answer:

The theory of evolution is based on the idea that all species are related and gradually change over time. Evolution relies on there being genetic variation in a population which affects the physical characteristics (phenotype) of an organism.

Answer:

The answer is B

Explanation:

Hope this helps!

The data are not found here, but evolution means 'descendence with modification', which may occur due to natural selection and mutations.

Evolution is descendence with modification, which generally is caused by a process called natural selection.

Natural selection 'selects' the most adaptive variants in the population, which occurs due to the emergence of mutations.

A mutation is any genetic change in the nucleotide sequence of the genome of an individual.

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Provides a protective barrier against mechanical, thermal and physical injury and hazardous substances. Prevents loss of moisture. Reduces harmful effects of UV radiation. Acts as a sensory organ (touch, detects temperature).

hope it helps...!!!

Answer:

the epidermis is the top layer of skin in your body it has functions in cluding   protecting  your body from the outside world kepping your skin hydrated producing new skin cells and determining your skin color  hope this helps.:)

Explanation:

According to law of conservation of energy , statement B and D support the idea of energy being conserved.

According to law of conservation of energy, it is evident that energy is neither created nor destroyed rather it is restored at the end of a chemical reaction .The law is now called as the first law of thermodynamics.

Law of conservation of mass and energy are related as mass and energy are directly proportional which is indicated by the equation E=mc².Concept of conservation of energy is widely used in field of chemistry, fluid dynamics.

Law needs to be modified in accordance with laws of quantum mechanics under the principle of mass and energy equivalence.This law was proposed by Julius Robert Mayer in the year 1842.

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Answer:

Your answer is A) Control group.

Explanation:

The control group and experimental group are compared against each other in an experiment. The independent variable is "controlled" or held constant in the control group. Hope this helped :)

Cellular respiration is a metabolic pathway that breaks down glucose and produces ATP.

Respiration is the process in which cells use oxygen to break down sugar in order to obtain energy. Glycolysis, pyruvate oxidation, the citric acid or Krebs cycle, and oxidative phosphorylation are the stages of cellular respiration.

So we can conclude that Cellular respiration is a metabolic pathway that breaks down glucose and produces ATP.

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Answer:A phylogenetic tree is a branching diagram showing evolutionary relationships among various living organisms based upon similarities and differences in their physical or genetic characteristics like the one above. In this case a human is more closely related to a mouse than a kangaroo, A platypus is more closely related to a kangaroo than a mouse, a human and a kangaroo share common features because of a common ancestor. 

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Sick, never knew that :O thanks

Answer:

True

Explanation:

Cellular respiration is the mechanism of breakdown of food materials within the cell to release energy and the trapping of this energy for synthesis of ATP. Therefore, the main purpose is to convert energy stored in the chemical bonds of glucose to energy that the cell can use.

Answer:

RNA leaves the nucleus during the process and DNA remains in the nucleus

Explanation:

DNA cannot leave the nucleus which is why RNA is made. A certain type of RNA, called mRNA (a.k.a. messenger RNA), leaves the nucleus to form proteins

Answer:DNA transforms from a nucleic acid into a protein, and RNA remains a nucleic acid

The trachea is what best completes this analogy in the respiratory system of organisms.

This is used to depicts how two or things may be alike which is why trachea was chosen.

This is because it and the bronchioles make up the bronchial tree and they both distribute air to the lungs.

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Answer:

Explanation:

Primary succession makes an ecosystem virtually start all over. For example a nuclear explosion wipes out anything and everything in its path. This makes the exosystem start all over and rebuild itself. The secondary succession will only partially make the escosystem restart. For example a forest fire  may wipe out some trees however there is still soil avalible for the ecosystem to grow back more easily

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Answer:

Electromagnet

Electromagnetic radiation is produced by charged particles accelerating through space.

Explanation:

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Answer:

If your leave the water out for about 24 hours the water will have many different kinds of bacterias. Same with the 48 hours, but there is more bacteria in it.

Explanation:

Answer:

forests, hills, rivers, and maybe mountains.

Explanation:

I'm right you are wrong.

Answer:

all cells reproduce through photosynthesis

Explanation:

Answer: a is correct

Explanation:

I did it