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Answer:

1. 760

2.720

3.880

4. the difference is 160

5.120

6.193

Explanation:

Answer:

Number 3 is the answer

Explanation:

Answer:

The last one

Explanation:

I think

The Mesozoic era should be the correct answer

Answer:

the answer should b cenozoic

Answer:

Polar

Explanation:

The region located between 60 - 90N and 60 - 90S.

The poles are regions north or south of the equator high above the temperate zone.

Answer:

Many plants are able to propagate themselves using asexual reproduction. ... Traditionally, these plants survive well under stable environmental conditions when compared with plants produced from sexual reproduction because they carry genes identical to those of their parents.

Answer:

1. chemical to light

2. sunlight to chemical

3. wind to mechanical

4. chemical to light and heat

Explanation:

Answer:

metaphase

Explanation:

Sister chromatids line up at the metaphase plate. The nucleus reforms and the cell divides. The kinetochore becomes attached to the cohesin proteins. Sister chromatids line up at the metaphase plate.

Answer:

Eco-region

Explanation:

An eco-region, also known as ecozone, is an ecological area defined by environmental conditions and natural features. An eco-region is defined by conditions such as soil type, temperature etc. Eco-regions have features like soil, that defines its boundaries. Eco-regions can be classified into biomes.

Hence, according to this question, an area defined by environmental conditions and natural features is known as ECO-REGION

Answer:

Any natural substance that humans use can be considered a natural resource. Oil, coal, natural gas, metals, stone and sand are natural resources. Other natural resources are air, sunlight, soil and water. Animals, birds, fish and plants are natural resources as well.

Explanation:

hope it helps

Answer:

bb

Explanation:

Because blonde hair is recessive, the only way for blonde hair to show in a child is if they have both recessive alleles.

Answer:

DNA replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. ... Once the DNA in a cell is replicated, the cell can divide into two cells, each of which has an identical copy of the original DNA.

In the eukaryotic cell cycle, chromosome duplication occurs during "S phase" (the phase of DNA synthesis) and chromosome segregation occurs during "M phase" (the mitosis phase).

Explanation:

Answer:

b. Light energy is transformed into chemical energy and oxygen is released.

Explanation:

Photosynthesis is a process in which light energy from sun is transformed into chemical energy and oxygen is released. Therefore, option (B) is correct.

The chloroplast organelle of plant cells is where the process of photosynthesis takes place. The thylakoid membrane of the chloroplast is where the normal light response of photosynthesis takes place. Water and carbon dioxide, two of the main reactants, take part in the process. In the process of the reaction, the water is oxidized, producing oxygen as a byproduct. Carbon dioxide is reduced.

In essence, the chloroplast's chlorophyll pigment transports the electron and hydrogen from water to the acceptor known as NADP+ when it absorbs light.

Hence, light energy is transformed. Option (C) is correct.

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Explanation: During endocytosis (endo means inside) a cell will use its cell membrane to engulf an object which is outside of the cell. This process takes effort by the cell, so it needs to use energy (ATP!) The process which is the reverse of endocytosis is exocytosis (exo means outside - think exit).

Answer:

Endocytosis and exocytosis are active transport mechanisms in which large molecules enter and leave the cell inside vesicles. In endocytosis, a substance or particle from outside the cell is engulfed by the cell membrane. The membrane folds over the substance and it becomes completely enclosed by the membrane.

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Answer:

I want to say pump blood to the lungs and body

Explanation:

Answer:

c- a mixture is two or more substances mixed physically but not chemically

Explanation:

In chemistry, a mixture and a compound is made up of two or more different substances that combines together, however, the difference between the two is in the way the combination occurs. Compounds are pure substances formed as a result of the chemical combination of two or more elements. The atoms of the elements in a compound are chemically bonded together in such a way that they cannot be separated.

On the other hand, mixtures are substances composed of two or more substances of different properties that are combined physically i.e. there is no chemical bonding between them, hence, components of a mixture can easily be separated using physical methods like boiling, melting, etc dependent on the individual properties of the components.

Answer:

C. During cross-pollination the pollen grains are carried from one plant to another plant. During self-pollination the pollen and ovules are from the same plant.

Answer:

C. During cross-pollination the pollen grains are carried from one plant to another plant. During self-pollination the pollen and ovules are from the same plant.

Explanation:

Answer:

Raising the temperature from 20c to body temperature

Explanation:

The increase in temperature will give the particles more thermo energy therefore it will increase the rate of an enzyme-controlled reaction

Answer:

C. airplane

Explanation:

Answer:

organelles

Explanation:

Answer:

Answer

Explanation:

I'm taking a shot in the dark, but I think these "stuff doing factories" are organelles.

Answer:

c its the plant making food for itself

Answer: A  storm or tornado

Explanation:

Answer:The testes contain germ cells that differentiate into mature spermatozoa, supporting cells called Sertoli cells, and testosterone-producing cells called Leydig (interstitial) cells.

Explanation:

Answer:

the testis make sperm and male hormones. The 2 main types of cells in the testis that perform these functions are gem cells and stromal cells

Answer:

politics,imigration

Explanation:

welcome

Answer:

In biology, adaptation has three related meanings. Firstly, it is the dynamic evolutionary process that fits organisms to their environment, enhancing their evolutionary fitness. Secondly, it is a state reached by the population during that process. Thirdly, it is a phenotypic trait or adaptive trait, with a functional role in each individual organism, that is maintained and has evolved through natural selection. Historically, adaptation has been described from the time of the ancient Greek philosophers such as Empedocles and Aristotle. In 18th and 19th century natural theology, adaptation was taken as evidence for the existence of a deity. Charles Darwin proposed instead that it was explained by natural selection. Adaptation is related to biological fitness, which governs the rate of evolution as measured by change in gene frequencies. Often, two or more species co-adapt and co-evolve as they develop adaptations that interlock with those of the other species, such as with flowering plants and pollinating insects. In mimicry, species evolve to resemble other species; in Müllerian mimicry this is a mutually beneficial co-evolution as each of a group of strongly defended species (such as wasps able to sting) come to advertise their defenses in the same way. Features evolved for one purpose may be co-opted for a different one, as when the insulating feathers of dinosaurs were co-opted for bird flight. Adaptation is a major topic in the philosophy of biology, as it concerns function and purpose (teleology). Some biologists try to avoid terms which imply purpose in adaptation, not least because it suggests a deity's intentions, but others note that adaptation is necessarily purposeful.

Explanation:

Hope this halps.

Answer:

A

Explanation:

Answer:

Explanation:

so

2 breads + 2 cheeses ⇒ 1 sandwich

if we use two slices of bread each time how many sandwich can we make with 33 slices

33/2 =16.5 sandwiches

if we use two pieces of cheese in each sandwiches how many sandwiches can we make with 15 slices ?

15/2 =7.5 sandwiches

the cheese her will run out first and we would have excess bread

so we would only be able to make 7.5 sandwiches without running out of ant ingredient :)

From the calculations, we can see that the producer can make about 12 sandwiches.

In the question, we are told that there are;

We also know from the question that  he is making sandwiches that have 2 pieces of both breed and cheese.

Hence; total number of bread and chese = 33 + 15. Each bread must contain two pieces of each of the bread and chees making a total of four pieces. He can therefore make; 33 + 15/4 = 12 sandwiches.

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Answer:

c

Explanation:

clearly

The macromolecule that stores genetic information for an organism is - Nucleic acids.

Nucleic acids are macromolecules made up of the monomers called nucleotide that store, transmit, and express hereditary information. This information is coded in the sequences of monomers that make up nucleic acids.

Thus, The macromolecule that stores genetic information for an organism is - Nucleic acids.

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Answer:

presence of cells

Explanation:

All living things are composed of cells. A cell can be defined as a complex biological arrangement that has all the structures and materials required for life. Cells carry out specialized functions such as, for example, metabolic functions to convert nutrients from food into energy (ATP), and reproduce by mitosis and/or meiosis. Thus, the cell is known to be the basic unit of life.