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Answer:

3 billion

Explanation:3 billion

The human genome contains approximately 3 billion of these base pairs, which reside in the 23 pairs of chromosomes within the nucleus of all our cells. Each chromosome contains hundreds to thousands of genes, which carry the instructions for making proteins.

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Answer:

Crust, mantle and core.

Water availability.

Volcanic eruptions.

Explanation:

The main similarities about Early earth and Modern earth is their layers of soil such as crust, mantle and core means that the both  Early earth and Modern earth are made up of these three layers. At that time water is present in huge amount while on the other hand, in Modern earth water is also present in large amount as compared to land. Volcanic eruptions occurs in both early and Modern earth.

Answer:

Metric ruler

Explanation:

You need to measure length, which is exactly what a ruler measures. The other option measure other things, like liquids or temperature.

Answer:

I'm pretty sure it would be C.

Explanation:

Answer:TAG-CAG-GGT

Explanation:I just took the test and got it right

Answer:

We see more of the lighted side of the moon because it is growing, so we see more

The time it takes to go from new moon to full moon is 2 weeks, because it takes a whole month (4 weeks) to go from new moon to full moon to new moon

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Answer:

Cohesion: Hydrogen Bonds Make Water Sticky

Explanation:

Cohesion: Hydrogen Bonds Make Water Sticky

In the case of water, hydrogen bonds form between neighboring hydrogen and oxygen atoms of adjacent water molecules. The attraction between individual water molecules creates a bond known as a hydrogen bond.

Answer:

The word you are looking for is: Covalent

Explanation:

I majored in Biology

Answer:

there are 6 atoms of carbon

Answer:

D.

Explanation:

Plants and animals that are very similar do toyear around one in the mositure.

Answer:

A.

Explanation:

Rainforests are forests characterized by high and continuous rainfall, with annual rainfall in the case of tropical rainforests between 2.5 and 4.5 meters and definitions varying by region for temperate rainforests.

Most rainforests are structured in four layers: emergent, canopy, understory, and forest floor.

Emergent Layer  

The top layer of the rainforest is the emergent layer. Here, trees as tall as 60 meters (200 feet) dominate the skyline. Foliage is often sparse on tree trunks, but spreads wide as the trees reach the sunny upper layer, where they photosynthesize the sun’s rays. Small, waxy leaves help trees in the emergent layer retain water during long droughts or dry seasons. Lightweight seeds are carried away from the parent plant by strong winds.

Canopy Layer  

Beneath the emergent layer is the canopy, a deep layer of vegetation roughly 6 meters (20 feet) thick. The canopy’s dense network of leaves and branches forms a roof over the two remaining layers.

Understory Layer

Located several meters below the canopy, the understory is an even darker, stiller, and more humid environment. Plants here, such as palms and philodendrons, are much shorter and have larger leaves than plants that dominate the canopy. Understory plants’ large leaves catch the minimal sunlight reaching beyond the dense canopy.

Forest Floor Layer  

The forest floor is the darkest of all rainforest layers, making it extremely difficult for plants to grow. Leaves that fall to the forest floor decay quickly.

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-Unlike viruses, viroids do not encode proteins.

Viroids are small infectious agents composed solely of RNA molecules. The correct statements about how viroids differ from viruses are:

1. Unlike viruses, viroids do not encode proteins.

3. Unlike viruses, viroids cause plant disease.

Viroids lack the protein coat typically found in viruses and do not encode proteins of their own. Viroids are known to cause diseases in plants and are not associated with animal or human diseases.

Viroids are unique infectious agents that differ from viruses in several ways. One of the key distinctions is that viroids do not encode proteins, unlike viruses. While viruses are composed of genetic material (either DNA or RNA) surrounded by a protein coat, viroids consist solely of small RNA molecules. This means that viroids cannot produce their proteins and rely on host cellular machinery for replication.

Therefore, the correct statements about how viroids differ from viruses are:

1. Unlike viruses, viroids do not encode proteins.

3. Unlike viruses, viroids cause plant disease.

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Answer:

Genes are segments of deoxyribonucleic acid (DNA) that contain the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contain a person's genes. Genes are contained in chromosomes, which are in the cell nucleus.

Explanation:

have a g'day!

Answer:

Explanation:

Answer:

A bioevent or bio-event (a shortening of 'biotic event' or 'biological event') is an event recognised in a sequence of sedimentary rocks, where there is a significant change in the biota as recorded by assemblages of fossils over a relatively short period of time.

Explanation:

1.According to Greek legend the war between the Greeks and the people of Troy was a long and bloody one.  And at the center was Helen, the most beautiful woman in all of Greece. And Paris, the Trojan prince who loved her.  PLZ HELP ME THIS IS A GRADE!!  

Answer:

What happens during DNA replication?

How is DNA replicated? Replication occurs in three major steps: the opening of the double helix and separation of the DNA strands, the priming of the template strand, and the assembly of the new DNA segment. During separation, the two strands of the DNA double helix uncoil at a specific location called the origin.

Explanation:

Answer:

Precipitation happens as a result of water evaporating and condensing. When water evaporates the water molecules transfer to a gas state into the atmosphere as water vapor. This water vapor then condenses due to cooler air temperatures because of this condensation larger water droplets form. Once these droplets become so large they can no longer be considered water vapor they will fall back down to earth. The act of these droplets falling is what is known as precipitation.

Answer:

b

Explanation:

its the closest out of all the choices

its actually

pico

nano

micro

meso

Answer:

B.) Picoplankton, nanoplankton, mesoplankton, macroplankton.

Explanation:

Took the Module 1 Exam.

Answer:

The correct answer is - tissues.

Explanation:

The tissue is an organization of the cells to work together to perform a specific type of function in an individual organ or body system of an organism. The skin cells of the scorpion also organize together to play the role of hard covering that helps the scorpion to be protecting.

This organization of cells is known as carapace which is a tissue made up of cells together to protect scorpion as tissue is a group of similar cells working together.

Answer:

No, the number of chromosomes is actually barely related to complexity at all. For instance, humans have 46 chromosomes (2 sets of 23) whereas small deer have 6 chromosomes, and carp have over 100

Explanation:

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No, the number of chromosomes is not related to the complexity of an organism. For example, humans have 23 pairs of chromosomes while amoeba has 27 pairs of chromosomes.

They are thread-like genetic material present inside the nucleus. They are hereditary material, they pass from one generation to another. They are made up of deoxyribonucleic acid (DNA) and protein (histone protein).  DNA is tightly coiled around the histone protein.

They carry all kinds of genetic information. They play important role in cell division, mutation, variation, regeneration, and heredity.

Different organisms have different numbers of chromosomes, humans have 23 pairs, fruit flies have 4 pairs, and yeast has 16 pairs of chromosomes. Therefore, their number does not have any correlation with the complexity of any organism.

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stomata closes vndkjvndkjvhdnof

Answer:

Closed due prevent water loss

Explanation:

hope i helped

Answer:

False

Explanation:

Sensory neurons send messages to the central nervous system.

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Genes code for the production of specific proteins. These proteins lead to different traits. The correct option is a.

A trait, as it relates to genetics, is a unique feature of an individual. Genes, environmental factors, or a combination of both can influence traits.

Qualitative traits (such as eye color) and quantitative traits (such as height or blood pressure).

A gene is the most fundamental physical and functional unit of heredity. DNA is the building block of genes.

Some genes serve as blueprints for the creation of proteins. Many genes, however, do not code for proteins. Genes in humans range in size from a few hundred DNA bases to over 2 million bases.

Genes encode instructions for the production of specific proteins. These proteins result in various characteristics.

Thus, the correct option is a.

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Answer: Both formulas identify the specific atoms in a particular compound. However, a structural formula also shows how the atoms in a compound are bonded together.

Explanation:

Molecular formula is the chemical formula which depicts the actual number of atoms of each element present in the compound.  

Empirical formula is the simplest chemical formula which depicts the whole number of atoms of each element present in the compound.

Structural formula is the formula which depicts the actual number of atoms of each element present in the compound by showing the bonding between the atoms.

Lewis structures show the valence electrons around each atom present in the compound.

Answer:

the answer is A

Explanation:

Answer:

Amoebas have a semirigid layer of ectoplasm which absorbs oxygen from the surrounding water and eliminates carbon dioxide in a form of respiration.

Explanation:

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Answer:

True

Explanation:

Plants use the energy of the sun to change water and carbon dioxide into a sugar called glucose. Glucose is used by plants for energy and to make other substances like cellulose and starch.

An air mass forms over the water of the Gulf of Mexico and moves from the equator up toward us. What is it called?

Answer:

The word that describes humidity (maritime or continental) is paired with the word that describes temperature (equatorial, tropical, polar or arctic). For example, if an air mass forms over a tropical ocean, it is called maritime tropical. If an air mass forms over land in the far north it is called continental polar.

Answer:

Vascular plants contain tube like features like xylem and phloem