dlhybrid cross practice

Answer:

Christian De Duve in 1955 discovered the lysosome. He started studying lysosomes in 1949 & finally discovered them in 1955.

Answer:

vascular

Explanation:

Answer:

vascular.

Explanation:

2021 EDGE

Answer:

If there are no animal cells, then life on earth would not exist. Also plants would dominate.

Explanation:

Answer:

A.

Explanation:

There is also much climate evidence supporting continental drift, most notable of which is glacial activity. Alfred Wegener investigated this field and found an anomaly in the Permo-Carboniferous ice sheet that was found through glacial till deposits to have once covered all the southern major plates.

Answer:

A food chain shows you how one organism eats another and transfers its energy.

Explanation:

For example, a zebra eats grass, and the zebra is eaten by the lion.

Answer:

A food web is basically multiple food chains. It shows what organisms eat and what organisms prey on other organisms.

Answer:

Explanation:

Food (glucose)

Answer:

Sexual reproduction in flowering plants involves the production of male and female gametes, the transfer of the male gametes to the female ovules in a process called pollination. After pollination occurs, fertilization happens and the ovules grow into seeds within a fruit.

Explanation:

Answer:

A) one electron........

Answer:

B.Electrons rub off of the carpet and onto your shoes

Explanation:

Answer:

Option B) three

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Answer:

Explanation:

1. mitosis

2. clones

3. differentation

Stem cells can make many copies of themselves through the process of mitosis, which is a type of cell division.

Stem cell are undifferentiated cells that produce specialized cells and their initial division results in daughter cells that are clones of the parent cells.

In conclusion, stem cells can make many copies of themselves through the process of mitosis.

Learn more on stem cells here:

https://brainly.com/question/18243320

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Answer:

The key elements of an amino acid are carbon, hydrogen, oxygen, and nitrogen. Hope it helps

Answer:

Eukaryotic

Explanation:

Fungi are eukaryotic, non-vascular, non-motile and heterotrophic organisms. They may be unicellular or filamentous. They reproduce by means of spores. Fungi exhibit the phenomenon of alternation of generation.

Answer:

30 chromosomes: the blood cells are somatic cells too

Answer:

Contractile vacuoles protect a cell from absorbing too much water and potentially exploding by excreting excess water. Wastes, such as ammonia, are soluble in water; they are excreted from the cell along with excess water by the contractile vacuoles

Explanation:

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Answer:

-> photosynthesis: the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.

-> respiration: a process in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances.

-> volcanic eruption: Volcanic eruptions happen when lava and gas are discharged from a volcanic. Volcanic eruptions often cause temporary food shortages and volcanic ash landslides called Lahar. The most dangerous type of volcanic eruption is referred to as a 'glowing avalanche'.

-> decomposition: Dead organisms are broken down into smaller pieces by the process of decay.

Explanation:

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Answer:

Photosynthesis: Photosynthesis is the process by which plants convert light energy to starch and chemical energy to manufacture their own food.

Respiration: Respiration is the process by which a living thing breathes in air. humans breathe in oxygen and breath out carbon dioxide, on the other hand plants breathe in carbon dioxide and breathe out oxygen.

Volcanic Eruption: Volcanic eruption is the process when a volcano sends out lava to the outer surface of the earth due to tectonic plate movements.

Decomposition: Decomposition is the process by which dead organic substances or decaying matters are broken down into simpler organic or inorganic matters with the help of natural processes.

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Answer:

limiting factor

Explanation:

Answer:

carrying capacity is anything that restricts the number of individuals in a population.

Answer:

have very long wavelengths

Explanation:

The first  X-ray image was captured by Wilhelm Conrad Roentgen (1895), who accidentally discovered these rays while experimenting with vacuum tubes. X-rays are high-energy electromagnetic radiation with very long wavelengths (in the range of 0.01 to 10 nanometers, nm). They are shorter in wavelength than ultraviolet rays and longer than gamma rays. X-rays have energies ranging from 100 electron-volts (eVs) to 100 kiloelectron-volts (keVs). On the other hand, the radio waves are blocked by the planet's ionosphere and, therefore, they cannot reach the Earth.

Answer:

1) stationary front  2) Continental tropical air mass 3) False, that would be trade winds 4) At night cooler air over water replaces rising warmer air over land. (option b) 5) there aint no map mayne 6) again aint no picture

Explanation:

jus trust. looked it up

Answer:

I would say part of an ecosystem and community.

Explanation:

An ecosystem is a biological community of interacting organisms and their physical environment .In the bottom of the sea,there are already many animals living here and when the whale fall appears at the bottom of the ocean it becomes apart of the ecosystem as it provides them with food.

This is because when a whale dies, its body often falls to the seafloor. The whale's body then becomes food and shelter for organisms in the deep sea. This is called a whale fall. A deep-sea whale  fall might support 200 different species for as long as 10 years! Larger species, such as Atlantic hagfish, are the first to arrive to feed  on the whale flesh. Later, smaller species of snails and crustaceans come to eat the remaining flesh. Worms burrow into the sand beneath  the whale body, and bacteria feed on the whale bones.

Answer:

Part of an ecosystem

Explanation:

The Atlantic hagfish and the crustaceans are living organisms. The sand is a nonliving part of the environment. An ecosystem is made up of living organisms and the nonliving parts of their environment. So, the Atlantic hagfish, the crustaceans, and the sand make up part of an ecosystem.

Answer:

I = 62.5%

Explanation:

Available data:

According to this information, we can picture the position of each gene in the chromosome

---DND1----------------------EDS1-----------------------------------IR1---

       ║---------- 8MU---------║------------------10MU-------------║

       ║------------------------------18MU------------------------------║

The map unit is the distance between the pair of genes for which one of every 100 meiotic products results in a recombinant product.

1% of recombinations = 1 map unit = 1cM. The maximum recombination frequency is always 50%.

So, if we know the distances between genes, we know their recombination percentages.

To calculate interference, first, we need to know the coefficient of coincidence, CC.    

CC= observed double recombinant frequency/expected double recombinant frequency

Note:

CC= (0.003)/(0.08 x 0.1)

CC=0.003/0.008

CC=0.375

CC = 37.5%

The coefficient of interference, I, is complementary with CC.

I = 1 - CC

I = 1 - 0.375

I = 0.625

I = 62.5%

Answer:

Bio-active molecules that are basically molecules that are which is produced as a result of microbial activities. These molecules can be in different forms such as enzymes, chemical compounds and organic acids. Some examples are proteases, streptokinases, lipases and pectinases.

I hope this helps you

Answer:   The connective tissue

Explanation:

Complete question:

If an increase in dicynodont species diversity (in other words, number of species) occurred soon after the Permian extinction, and if it occurred for the same general reason usually given for the increase in mammalian diversity following the Cretaceous extinction, then it should be attributed to

A) an innovation among the dicynodonts that allowed them to fill brand-new niches.    

B) the availability of previously occupied niches.

C) the extinction of the dinosaurs (except the birds).

D) their out-competition of many other terrestrial organisms.

Answer:

B) the availability of previously occupied niches.

Explanation:              

Some species could survive massive extinctions caused by severe natural catastrophes. Some of them were small animals that could hide in certain places that were useful for their protection during the catastrophe. Those animals, that for instance, could hide underground, were able to avoid extreme temperatures and highly toxic gas concentrations caused by the phenomenon. Catastrophes caused severe damage to the Earth´s surface, causing the extinction of many other animal and vegetal species, causing changes in the morphology of the ground, and in temperature. Animals that could survive found themselves in a whole different place. Many niches were now available to be re-occupied. Survivers could specialize in different feeding strategies,  finding new different shelters, and developing new morphological characteristics that lead to a rapid diversification and speciation.

Answer:

where

Explanation:

Answer:

solve for what

Explanation:

there is nothing attached

Answer:

I think C. Petri dishes

Explanation:

"The most common growth media nutrient broths (liquid nutrient medium) or LB medium (Lysogeny Broth) are liquid. These are often mixed with agar and poured into Petri dishes to solidify. These agar plates provide a solid medium on which microbes may be cultured."-https://courses.lumenlearning.com/boundless-microbiology/chapter/culturing-bacteria/

I hope this helps!