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HACTEHA [7]
3 years ago
6

Freda grows potted plants outside in the summer. When the weather is very hot, her plants need to be watered every day to keep t

hem from wilting.
For a class project, Freda designed a system that would automatically water her plants at 10:00 p.m. on days when the temperature reached 90°F. These are the steps she followed to design it:

Freda researched automated watering systems.

She brainstormed different solutions, then chose that one that she thought would work the best.

She sketched a design of the system and listed the equipment she would need to build it.

Next, Freda wanted to build her system, but she discovered that she could not afford to buy all the materials.

What mistake did Freda make in her design process that kept her from completing her project?

A.
She did not communicate her solution to others.
B.
She did not account for cost constraints in her solution.
C.
She did not evaluate her product in order to improve its design.
D.
She did not include measurements in her design sketch.
Biology
1 answer:
nasty-shy [4]3 years ago
3 0

Answer:

B.) She did not account for cost constraints in her solution.

Explanation:

She did everything right except for B.

If we are planning on building something that requires materials we don't already have, we should research the cost of the materials, and our budget.

<em>Hope this helped</em><em> </em><em> </em><em>:</em><em>)</em>

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List four ways the biomass eaten by an animal can be used.<br> Will mark brainliest….
bixtya [17]

Answer:1

1. It can be use as source of energy and fuel.

2. It can be use to build body tissues and bones.

3. To fight pathogens or fight infections.

4. It can be use for bones development.

Explanation:

Biomass are Renewable source of organic matter that can be use for energy. These includes wood, seaweeds, crops and animal wastes. Biomass get it's source of energy from sunlight. All biomass contained stored energy from sun which is gotten from the process of photosynthesis where green plants uses carbondioxide and water with light energy to produce sugars. Animals get their energy from consuming sugars.

Biomass eaten by animals can be use in four ways.

. It can be use as source of energy and fuel.

2. It can be use to build body tissues and bones.

3. To fight pathogens or fight infections.

4. It can be use for bones development.

8 0
3 years ago
Why does the actions of the thymus demonstrate a close functional connection between the lymphatic system and the endocrine syst
OleMash [197]

Answer:

The Thymus is a unique gland which protects the body against autoimmunity when the immune system act against itself.Hence the Thymus plays a significant role the dual systems i.e.,the lymphatic system (body’s defensive mechanism) and the endocrine system

Explanation:

The Thymus is special gland located anteriorly to the chest directly behind the sternum and in between the lungs. Active until puberty and gradually shrinks to become fat after puberty.

Function: Prior to birth and during childhood thymus engage in producing and maturation of T-lymphocytes or T-cells a particular type of white blood cells which defence the body against infectious disease germs.Though the organ does not function throughout the life span but it plays a significant role protecting the body against autoimmunity refers to an immune system works against itself .Therefore the thymus plays a key role in lymphatic system and an endocrine system.

Secretion:Thymus secretes Thymosin a hormone it instigates the development of T-Cells ( disease resisting cells) Thymosin stimulates the development of T-Cells until a human attains its puberty. At the age of 75 thymus becomes a fatty tissue.

8 0
3 years ago
Some organisms living in a vacant lot include grass, dandelions, mice, grasshoppers, and slugs. Collectively these organisms rep
lesya692 [45]
A community for different living organisms that support each other is called an ecosystem. The answer is (A) an ecosystem.
4 0
3 years ago
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The leading cause of limited water supplies is ?
Zanzabum

The correct answer is low precipitation.


The cause of limited water supplies is reduced precipitation or low precipitation.


Precipitation is termed as any product of condensation which is of atmospheric water vapour which falls under gravity.


Forms of precipitation can be sleet, snow, graupel, hail, drizzle, and rain.

Precipitation occurs when portion of atmosphere comes to being saturated with water vapor such that water condenses and then it precipitates.


It is the major component of water cycle and deposits fresh water to planet.

3 0
3 years ago
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Which statement is the best physical description of a gene? A chromosome is a segment of a gene. Genes carry many chromosomes. A
Sergio039 [100]

Answer:

The correct option is <em>C. A gene is a specific segment of DNA on a chromosome</em>

Explanation:

Option A is false because a gene is a segment on a chromosome.

Option B is false because a chromosome carries many genes.

Option D is false because a gene carries a segment of DNA, not all of the DNA.

Option C is correct because there are many genes present on a single chromosome. Each gene carries a segment of DNA. The position of a gene on the chromosome is known as its loci.

4 0
3 years ago
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