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2 years ago

Describe how gravity affects reentry and other energy factors.

Biology

1 answer:

solmaris [256]2 years ago

5 0

Answer:

When an object enters the Earth's atmosphere, it experiences a few forces, including gravity and drag. Gravity will naturally pull an object back to earth. ... This friction causes the object to experience drag, or air resistance, which slows the object down to a safer entry speed.

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Experiments are carried out to test a hypothesis by changing one variable at a time and including an unchanged variable termed a

natta225 [31]

According to the research, the correct option is control. Experiments are carried out to test a hypothesis by changing one variable at a time and including an unchanged variable termed a control.

<h3>What are Experiments?</h3>

It is the process by which one or more variables are intentionally manipulated by carrying out actions aimed at discovering or verifying certain phenomena.

In this sense, its basis is in the manipulation of the variables that are considered relevant, the control of strange variables and the randomization of the rest.

Therefore, we can conclude that according to the research, the correct option is control. Experiments are carried out to test a hypothesis by changing one variable at a time and including an unchanged variable termed a control.

Learn more about Experiments here: brainly.com/question/27750242

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6 0

1 year ago

Drag each tile to the correct box

scoundrel [369]

We need the context of the work of you want us to answer

6 0

2 years ago

The maximum attainable age by humans is thought to be _____ years.

Mama L [17]

Absolute maximum is 115.7 years of age

3 0

3 years ago

The intercellular material that holds plant cells together 1 cell cement 2. A septum which forms to separate the two new plant c

notsponge [240]

Answer:

1. The intercellular material that holds plant cells together (Cell Cement)

2. A septum which forms to separate the two new plant cells (Cell plate)

3. Material which makes up the structure of the cell wall (Cellulose)

4. play a role in the formation of the spindle during cell division (Centrioles)

5. Serves to trap the sun's energy for photosynthesis (Chlorophyll)

6. A packet of chlorophyll arranged in stacks within a plant cell (Chloroplast)

7. The pinching in of the animal cell during cell division (Cleavage furrow)

8. The new cells resulting from the division of the mother cell (Daughter cells)

9. channels for transporting molecules within the cell (Endoplasmic reticulum)

10. The reproductive cells in sexual reproduction (Gametes)

11. Involved in producing and packaging secretions (Golgi Bodies)

12. The process involving the division of the nucleus in a reproductive cell (Meiosis)

13. The process involving the division of the nucleus of a body cell (Mitosis)

14. The cell that is about to undergo binary fission (Mother cell)

15. Makes up the structure of the ribosomes (rRNA)

16. Substances produced by the Golgi bodies (Secretions)

17. The fibers which direct the even distribution of chromosomes (Spindle)

Explanation:

Plant cells: (1,3,5,6)

Plant cells differ from animal cells in several ways.

Cell wall: One of the most defining one is plant cells have cell walls. These cell walls are rigid and they cover the plasma membrane of the plant cell. Cell walls have 3 layers and the outermost one is called the middle lamella, which is the cell cement. It acts like a cement because it is what holds one plant cell and the adjacent cells together. The middle lamella is made up of pectin.

The cell wall also has layers made up of cellulose, which happens to be a macromolecule as is the most abundant of its kind on Earth. They form bundles called microfibrils.

Chlorophyll: Chlorophyll are molecules found in plant cells that play a role in food production in plants. Chlorophyll absorbs sunlight which is used in the process of food making called photosynthesis, along with other elements like water and carbon dioxide. Also chlorophyll gives the green pigmentation of plants.

Chloroplast: Chlorophyll are encased in an organelle called chloroplast. Chloroplasts are where photosynthesis takes place. They are found in the leaves of plants. Because they use chlorophyll, the are also green.

Other parts of a cell: (4, 9,11.15, 16, 17)

Both plant and animal cells also have similar organelles.

Endoplasmic Reticulum (ER): There are two types: smooth endoplasmic reticulum(SER); and rough endoplasmic reticulum(RER). The SER acts like a storage unit for lipids and steroids. They also help in the production as well. RER is a pckaging and synthesis area. It is rough because they have ribosomes on them.

Ribosomes: Ribosomes are small organelles in the cell that are partly made up of rRNA or ribosomal RNA. They play an important role in protein synthesis. They help translate the DNA code that the mRNA transcribed to determine what type of protein will be formed.

Golgi Apparatus: Also known as the golgi complex, is an organelle in the cell that serves as a sorting and packaging area. It collects simple molecules and packages them into more complex molecules which would be stored if the cell would need it, or it will be sent out of the cell. These complex molecules are packed into vesicles. A transition vesicle is made from the protein in the ER is transported to the golgi apparatus, which then processes its contents. It then releases a secretory vesicle, that is then brought to the cell membrane.

Centrioles: Centrioles are small, cylinder-shaped organelles that aid in cell division. They are made up of the protein, tubulin. These centrioles produce spindles or spindle fibers that pull on the chromosomes during cell division and split them up.

(CONTINUED IN THE ATTACHMENT)

3 0

3 years ago

Which of the following terms is best defined as the fixed transitions or order of progressions that enable a person to progress

Finger [1]

Answer: The correct answer to the question is option B

MATURATION

Explanation: To answer the question well and understand it,let's look at the meaning of the options given.

PHYSICAL GROWTH; Physical growth is simply the increase in height,length and weight of a child or individual.it also involves the increase in body cells,tissues and organ because as there is increase in height, weight and length,the interior of the body(constituents) also grow along.

MATURATION; Maturation occurs along with ageing and physical growth,it is controlled by internal biological factors, it makes us to do something which makes way for learning to occur,the basic ability to do these things are all made possible through maturation. In maturation, one learns to cope and react in a way that is naturally appropriate.

Maturation occurs naturally without any conscious effort,it involves becoming mature or developed, both mentally and physically inorder to progress to higher level of function.(this corresponds to the question)

DEVELOPMENT; This is progressive change in size function of an individual or organism.

In development,the genotype of an individual or organism progresses to phenotype.

AGING; Aging is simply the process of becoming old and advanced in age and decline in body structures and functions.

4 0

3 years ago

Read 2 more answers