so confused and pls ignore what i marked but pls help

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:

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!

Answer:

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

Explanation:

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: X

Explanation:

Because we see 2 X's in the karyotype, that means that this person can only give an X to their son, who is XY.

Answer:

A

Explanation:

All living things can produce and divide from preexisting cells.

Answer:

the photic zone or better known as the sunlight zone, since photosynthesis occurs here, more than 90 percent of all marine life live in this sunlight. the sunlight zone goes about 600ft deep

Answer:

why are The more variation a population has, the better its ability to adapt to changes in its environment through natural selection. If there is more variation, the odds are better that there will be some alleles already present that allow organisms to survive and reproduce effectively under the new conditions

Explanation:

Answer: C

Explanation:

DMD is s*x linked trait. This means that we have to consider the   chromosomes XX and XY. For a male to have DMD, this means the mom must must pass down the allele for DMD. The mom can either be a carrier OR she has to have DMD and the dad can only pass down the Y chromosome. For a daughter to get DMD, this means the dad has to have the allele for DMD and so does the mom. That means that the dad has DMD and the mom can either have DMD or be a carrier. Based off of this logic, we know that the answer isn't B.  Because they tell us DMD is s*x-linked trait, it means that the gene for DMD is on the x or y chromosome.

Answer:

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

Answer:

B

Explanation:

After fertilization, a zygote undergoes rapid cell division (mitosis) to develop into a foetus

Answer:

Embryogenesis is the development of an animal or plant embryo.

OR

Embryogenesis is the process of development of an embryo from zygote. In embryogenesis, the zygote undergoes repeated cell division through mitosis. The divisions help in the growth of an embryo. Cells undergo differentiation attaining specific shape, size and function. Cell differentiation occurs at specific location resulting in the production of different tissue, organs and organ system.

Answer:

by washing ourselves with soap

Answer:

3

Explanation:

The correct answer will be option-Transcription takes place in the nucleus, and translation takes place in ribosomes.  

The regulation of genes is regulated and controlled by two main processes of central dogma called transcription and translation.

Transcription is the process of formation of messenger RNA or mRNA from a single strand of DNA whereas translation is the formation of protein from mRNA.

This process takes place in different sites in prokaryotes and eukaryotes. In prokaryotes, both transcription and translation take place in the cytoplasm but in eukaryotes, the transcription takes place in the nucleus whereas translation takes place in the ribosomes present in the cytoplasm.

Thus, the selected option is the correct answer.

Answer:

Explanation:

Food (glucose)

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:

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:

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:

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

High water temperatures and water acidity cause coral polyps to expel

algae, causing them to turn white in color.

This is the process in which a surface is whitened by the removal of its

natural color.

In coral polyps which are found in water, they experience bleaching

through high water temperatures and water acidity.

Read more about Bleaching here https://brainly.com/question/1222498

Answer:B

Explanation:

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:

Hope it helps!

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Answer:

30 chromosomes: the blood cells are somatic cells too

The correct answer is after decomposition in the carbon cycle, it is first fossil fuels or vulcanic eruption, respiration, and photosynthesis.

Explanation

The carbon cycle is the way that carbon circulates through the atmosphere, oceans, and the Earth's surface and interior through chemical, physical, geological, and biological processes. This cycle is very important because carbon is present in all elements of the Earth. Decomposition is the stage in which organisms (plants and animals) break down and are absorbed by the soil. After millions of years, the carbon contained in these organic wastes becomes the mineral coal that is exploited in mines and extracted for use as fossil fuels, another part of this compound mixes with the processes of the lithosphere and is expelled. in volcanic eruptions. Also, once absorbed by the soil, it feeds the plants that serve as food for different animals that use it for one of their basic processes such as respiration. Once in the atmosphere, the plants absorb carbon again to make their photosynthesis. Therefore, the correct order of the steps of the carbon cycle is Fossil fuels, respiration, photosynthesis.