Question 9
The diagram below shows a cellular process. What is the correct sequence of these stages?
3
с
D
A
A-B-C-D
B
C-B-D-A
с
B-D-C-A
D
D-B-A-C

Answer:

understanding phylogeny. understanding a phylogeny is a lot like reading a family tree. the root of the tree represents the ancestral lineage and the tips of the branches represent the descendants of that ancestor. as you move from the route to the tips you are moving forward in time

Explanation:

blahblah

Answer:

C. CH4 + 202 – CO2 + 2H20

Explanation:

CH4+O2-CO2+H20

The above equation represents combustion of methane to produce carbon-dioxide and water.

One carbon atom is present on the reactant side as well as on the product side. Four hydrogen atoms are present on the reactant side  and two hydrogen atoms on product side. In order to balance this equation, we would multiply water molecule by two. Now there are four atoms of oxygen in the product side but only two on reactant side, so we will multiply oxygen molecule by two on the reactant side. Now the equation is balanced.

The balanced chemical equation is:

CH4+202-CO2+2H2O

This equation obeys the law of conservation of mass as the mass of the reactants is same as that of the products.

Answer:

C. CH4 + 202 – CO2 + 2H20

Explanation:

Answer:

72

Explanation:

0.25 X4 =1.0 so

18x4=72

Answer:

option c is the answer met-his-stop

Answer:

D is the answer All of those are parts of the cell theory!

Answer: Insert Voiceover

Nucleolus is site for production of ribosomal RNA not ribosomes. While ribosomes constitute both rRNA and protein they are assembled after transcription. rRNAs associate with the ribosomal proteins, forming the two types of ribosomal subunits (large and small). These will later assemble in the cytosol to make a functioning ribosome. In prokaryotes ribosomal RNAs are coded in operon systems (nearly 20) and absence of a nucleolus in way hampers their production.

Answer:

Restriction enzymes, also called restriction endonucleases, recognize a specific sequence of nucleotides in double stranded DNA and cut the DNA at a specific location. They are indispensable to the isolation of genes and the construction of cloned DNA molecules.

Answer:

Explanation:

ohm's law

V=IR

v = voltage

I= current

R = resistance

Answer:

it is Yeast, yeast makes it rise

Answer:

The Maturity Principles: People tend to become more agreeable, emotionally stable, and socially dominant as they grow older. The Plasticity principle: While personality traits tend to be stable, they are not set in stone.

Explanation:

Answer:

The cell membrane is like the screen door

The cell membrane is like the screen door The Golgi body is like the set of a flattened sac or a mailman

The cell membrane is like the screen door The Golgi body is like the set of a flattened sac or a mailman The ribosome are like the flattened and spherical in shape or house

The cell membrane is like the screen door The Golgi body is like the set of a flattened sac or a mailman The ribosome are like the flattened and spherical in shape or house The lysosome are like the teacher of a school

Answer:

How Biogeography Affects Biodiversity

Alfred Russel Wallace, Father of Biogeography

Figure 1: Alfred Russel Wallace, Father of Biogeography

Some places contain more species than others. For example, Antarctica has fewer species than a temperate deciduous forest, which in turn has fewer species a tropical rainforest. For over 150 years, researchers have sought to make sense of the gross and fine scale spatial patterns in biodiversity, and to elucidate both the proximate and ultimate causes for these patterns.

This article describes some of the major geographic patterns in species richness, and the processes and theories that are thought to account for these patterns. Much of this knowledge has emerged from the tremendous body of work from one scientist, Alfred Russel Wallace (Figure 1), widely regarded as the “Father of Biogeography.” Aside from co-originating the process of Natural Selection with Charles Darwin, Wallace spent extended periods studying the distribution and diversity of plants and animals in Amazonia and Southeast Asia in the mid 1800s. Many of the patterns and processes featured in this article were initially described by Wallace, and careful study of his work indicates that his ideas presaged many of the discoveries made by his numerous successors.

Many of the spatial patterns in biodiversity are overt, others are subtle and yet additional patterns remain undetected. While the existence of these patterns may be obvious — and changes in the environment that are paired with these patterns may also be obvious — the mechanisms that cause the differences in biodiversity along environmental gradients are under still the subject of scientific debate. Because large-scale patterns are the emergent result of complex interactions at many spatial and temporal scales, no single answer is likely to ever emerge, but with continued research our understanding of the processes shaping these patterns increases.

Historical Processes Affecting Biogeography

Darwin's finches of the Galapagos Islands are a classic example of adaptive radiation.

Figure 2: Darwin's finches of the Galapagos Islands are a classic example of adaptive radiation.

All species occurring in at a given place and time either arrived from another place or originated in that location from ancestral species. This fact applies to extinct species that were ancestors of all extant species. Species richness in a given location is the result of three factors — the rate of speciation, the rate of extinction, and the dispersal of species from other locations. In principle, if biogeographers could understand how the current and past environment has shaped these three factors, we would then obtain a comprehensive understanding of what generates all biogeographic patterns of species richness. However, numerous environmental and organismal parameters can drive these historical factors, in both complex and interacting fashions.

Answer:

Explanation:

Disruption of normal regulation of the cell cycle can lead to diseases such as cancer. When the cell cycle proceeds without control, cells can divide without order and accumulate genetic errors that can lead to a cancerous tumor

The cell life cycle is controlled meaning that:

The reproduction of the cell is controlled.

The cell has a "programated death" meaning that at some point, all normal cells die.

If there is a problem with these (uncontrolled reproduction or cells that just not die) a tumor will appear.

Where the tumor is just a mass of these cells that reproduce uncontrolled and that don't die naturally.

So the thing that happens if cell division is not controlled, is that a tumor will appear.

Answer:

id say the tides, but i dont know your answer choices. If you post them i could help more.

Explanation:

Answer:

The ocean produces oxygen through the plants (phytoplankton, kelp, and algal plankton) that live in it.

Explanation:

Answer: Cowbirds lay eggs in a great variety of nests, including Red-winged Blackbird nests in marshes, dome-shaped Ovenbird nests on the forest floor, cup nests in shrubs and treetops, and even occasionally in nests in tree cavities.

Answer:

hormones

Explanation:

In regards to the composition of the spinal cord, the grey matter is the centermost substance, whilst white matter is located towards the peripherals.

Though I could not locate the labels and categories online in order to properly classify each one, I can provide a general overview of the subject to aid in your understanding and ability to complete the project.

The spinal cord acts as a path through which billions of signals from the brain travel to reach the rest of the body. This pathway is occupied by grey and white matter, which are the representation of the billions of neurons that make up the central nervous system.

Grey matter is located towards the center of the spinal cord and is often described to be in the shape of a butterfly. Grey matter is the accumulation of nerve cell bodies and unmyelinated axons. In contrast, white matter makes up the surrounding area to that of grey matter and corresponds to the myelinated axons of various nerve cells. The white coloration of the white matter is due to the myelin itself.

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Answer:

secretary bird

Explanation:

Answer:

prokaryotic cells are smaller than eukaryotic cells because they have fewer organelles.

Explanation:

prokaryotic cells do not contain a nucleus, vacuoles, endoplasmic reticulum, mitochondria, Golgi apparatus, lysosomes, or peroxisomes, thus making them smaller than eukaryotic cells.

Answer:

hereditary

Explanation:

if Maya tralt if albinism is recessive, then definitely the tralt for Jack is dominant

Answer: Metamorphic rock, estimated to be as old as 3.8 billion years, located near Isua at Qorqut Sound, Greenland.In the rock cycle, there are three different types of rocks: sedimentary, igneous, and metamorphic. Sedimentary and igneous rocks began as something other than rock. Sedimentary rocks were originally sediments, which were compacted under high pressure. Igneous rocks formed when liquid magma or lava—magma that has emerged onto the surface of the Earth—cooled and hardened. A metamorphic rock, on the other hand, began as a rock—either a sedimentary, igneous, or even a different sort of metamorphic rock. Then, due to various conditions within the Earth, the existing rock was changed into a new kind of metamorphic rock.

The conditions required to form a metamorphic rock are very specific. The existing rock must be exposed to high heat, high pressure, or to a hot, mineral-rich fluid. Usually, all three of these circumstances are met. These conditions are most often found either deep in Earth’s crust or at plate boundaries where tectonic plates collide. In order to create metamorphic rock, it is vital that the existing rock remain solid and not melt. If there is too much heat or pressure, the rock will melt and become magma. This will result in the formation of an igneous rock, not a metamorphic rock.

Explanation:

the appearance changes but the identity does not

In light reactions, a molecule of chlorophyll absorbs one photon of light, causing a chlorophyll electron to transfer to a higher energy level. The energized electrons from the chlorophyll molecules flow down a transportation chain to a compound called nicotinamide adenine dinucleotide phosphate or NADP.

Water is the molecule that supplies chlorophyll with electrons.

Photosynthesis is the process by which plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose (sugar) and other carbohydrates. This process also produces oxygen as a byproduct.

During the process of photosynthesis, chlorophyll absorbs light energy, which is used to split water molecules into oxygen and hydrogen atoms. The hydrogen atoms are then used to generate ATP and NADPH, which are used to power the process of carbon fixation. The oxygen atoms are released as a byproduct of water splitting and become a part of the oxygen in the Earth's atmosphere.

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