the origin of a new plant species by hybridization, coupled with accidents during cell division, is an example of

Answer:

The cell membrane, also called the plasma membrane, is found in all cells and separates the interior of the cell from the outside environment. The cell membrane consists of a lipid bilayer that is semipermeable. The cell membrane regulates the transport of materials entering and exiting the cell.

Explanation:

Answer: D

Explanation:

During S phase (synthesis), DNA replication takes place. Completion of DNA synthesis is followed by G2 phase during which cell growth continues and proteins are synthesized in preparation for mitosis. S page lasts for 8 hours approximately.

Answer:

Phospholipids or fats

Answer:

tissues

Explanation:

Answer:

B. Intestine

Explanation:

Salmonella bacteria live in the intestines of people, animals and birds. Most people are infected with salmonella by eating foods that have been contaminated by feces. Commonly infected foods include: Raw meat, poultry and seafood.

Answer:

Phototropism

Explanation:

It is the directional response that allows plant to grow towards or in some cases away from a a source of light

Answer:

freeze and sink over and over until the entire lake was frozen.

Explanation:

This would eliminate many aquatic organisms and produce a system with far fewer life forms in lakes which freeze periodically.

1. abortion

2. testing cosmetic products on animals

hope this helps :)

Answer:

The answer is C

Explanation:

The answer is C because it can be answered using scientific methods, the scientific method is a good way to test something, and so therefore C is the answer

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Answer:

false.  ulna is on pinky side, radius is on thumb side

Explanation:

Answer:

False

Explanation:

2.3 content quiz (Anatomy Plato)

Answer:

i think its the third.

temperature,pressure and the original type of rock

Hi!

Infection occurs when viruses, bacteria, or other microbes enter your body and begin to multiply. Disease, which typically happens in a small proportion of infected people, occurs when the cells in your body are damaged as a result of infection, and signs and symptoms of an illness appear.

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.

The plasma membrane, also called the cell membrane, is the membrane found in all cells that separates the interior of the cell from the outside environment.

The plasma membrane, or the cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell. And that membrane has several different functions. One is to transport nutrients into the cell and also to transport toxic substances out of the cell.

Answer:

he has heterochromia iridis

Explanation:

Scherzer has an uncommon condition called heterochromia iridis that affects less than 200,000 people in the United States. The condition, which in most cases doesn't damage the eyes, is caused by the distribution and levels of melanin in the irises

Answer:

In general, bird karyotypes have a high diploid number (2n) of typically around 80 chromosomes that are divided into macro- and microchromosomes

Answer:

These two numbers are fixed for an element. The mass number tells us the number (the sum of nucleons) of protons and neutrons in the nucleus of an atom. The atomic number (also known as the proton number) is the number of protons found in the nucleus of an atom. It is traditionally represented by the symbol Z.

Explanation:

(D) O total number of neutrons and protons

Explanation:

study of human evolution through the fossil and archaeological records

Answer:

Some of the DNA would be unable to separate into two strands.

Explanation:

Answer:

1.Collect a thin slice of your sample and place it on a clean, dry slide 2.Place one drop of water over your sample 3. Place the coverslip at a 45-degree angle with one edge touching the water and let go 4. Your slide is ready to be viewed.

Explanation:

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Answer: Bacteria break down organic material in wastewater and form the floc that settles and separates solids from liquids. Controlling F/M ratio–a vital component to creating a favorable environment for wastewater bacteria–can be accomplished through the use of bioremediation products. Bacteria account for 95% of the microorganisms in wastewater. They are single-celled microorganisms that are classified based on their response to oxygen.

Aerobic bacteria use oxygen, which is added mechanically, to break down wastewater contaminants, converting it into energy. Bacteria use this energy to grow and reproduce. Anaerobic bacteria obtain oxygen from their food source. As anaerobic bacteria break down sludge, they produce methane gas. This methane gas can be used as an alternative energy source, called biogas, to fuel the wastewater treatment process. Anaerobic bacteria can also be used to lower the amount of phosphorus in the effluent. Although they prefer oxygen, facultative bacteria can switch between aerobic and anaerobic forms in response to their environment.

Answer:

cells, growth, reproduction, adaptation, homeostasis, use of energy and response to the environment

The property that is shared by the cells of all living things the cells contain DNA composed of adenine, thymine, guanine, and cytosine. The correct option is A.

Living things are those things that are alive, The main property of a living thing can distinguish them from non-living things. These properties are growth and reproduction.

The living cells are those cells that made all the living matter. The living cell is composed of macromolecules. The cell is composed of DNA and different cell organelles.    

DNA is present in every living organism. It determines the genetic difference of every organism. It is the same in every cell.

Thus, the correct option is A. The cells contain DNA composed of adenine, thymine, guanine, and cytosine.

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The question is incomplete. Your most probably complete question is given below:

A. The cells contain DNA composed of adenine, thymine, guanine, and cytosine.

B. The cells have chromosomes that are located inside a membrane-bound- nucleus.

C. The cells are surrounded by a phospholipid bilayer and a cell wall made of

cellulose.

D. The cells rely on mitochondria to carry out aerobic cellular respiration.

Glucose has combined with oxygen to make carbon dioxide and Glucose has 6 carbons and has been completely broken down by this stage.

Glucose react with oxygen to make carbon dioxide, water and energy in the form of ATP.  Glucose has 6 carbon atoms which react with oxygen that is  completely broken down into three products such as carbondioxide, water and energy in the form of ATP by the process of cellular respiration so we can conclude that carbondioxide gas is produced by breaking down of glucose molecules from the Krebs cycle that is a stage of respiration.

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Answer:

Nectar (flowers) - butterflies - small birds - foxes.

Dandelions - snail - frog - bird - fox.

Dead plants - centipede - robin - raccoon.

Decayed plants - worms - birds - eagles.

Fruits - tapir - jaguar.

Fruits - monkeys - monkey-eating eagle.

Grass - antelope - tiger - vulture.

Grass - cow - man - maggot.

Explanation:

Answer:

Grass-Grasshopper-Snake-Hawk

Explanation:

very simple one