BIOLOGY MIDDLE SCHOOL

The four main types of macromolecules are organic. What does organic mean in this context?
O
A. It is a very large molecule.
O
B. It is produced without the use of pesticides.
O
C. It is made from or produced by a living organism.
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D. It is made only of carbon.

Answers

Answer 1
Answer:

Organic  means it is made only of carbon.

Explanation:

The all four types of macromolecule are organic means these all four type of macromolecule made up of carbon. These four macro molecules are carbohydrate, protein, nucleic acid and Proteins.  All are essential cell component perform a wide array of function.

Biological macromolecule is organic so they contain carbon. A part of carbon they contain nitrogen, hydrogen and additional minor element.   Enzymes and some hormone are example of protein.


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HIGH SCHOOL

Which System that protects, regulates temperature, and prevents water loss?

Answers

That would be integumentary system 
HIGH SCHOOL

The human body is composed of approximately 60% of water. Please select the best answer from the choices provided. T F

Answers

The statement "The human body is composed of approximately 60% of water is true.

What is water?

Water is the main compound of all living bodies. Every living body plant or animal is made up of water, the body contains 60% to 90% water. So the fruit and blood and milk all contain water.

Your body uses water in all of its cells, organs, and tissues to help maintain other internal activities and control body temperature. The average adult body contains between 57 and 60 percent water. Infants have a substantially higher water content, usually between 77% and 80%, which decreases to 65% by the time they are one year old.

It's crucial to rehydrate by drinking fluids and consuming foods that contain water because your body loses water through breathing, sweating, and digestion.

Therefore, the statement is true.

To learn more about water, refer to the below link:

brainly.com/question/817274

#SPJ5

Answer:

TRUE

Explanation:

thats the right answer ok

COLLEGE

What does crop rotation do?

Answers

Answer: It help in reducing the pests build up.

Reduces soil erosion.

Helps in control weeds.

It prevents diseases.

Explanation:

crop rotation mitigates the buildup of pathogens and pests that often occurs when one species is continuously cropped, and can also improve soil structure and fertility by increasing biomass from varied root structures. Crop cycle is used in both conventional and organic farming systems.
HIGH SCHOOL

Which of the following is not a mechanism for biological evolution? a. Mutation
b.Genetic drift
c. Inheritance of acquired characteristic
d. Natural selection

Answers

I would say D. natrural selection
MIDDLE SCHOOL

(20 pts) One way the body fights invaders is by increasing the body temperature, or running a fever. Give a brief explanation as to why that defensive technique works against some viruses or bacteria.
Make sure to write it in your own words please, and do the best you can.

Answers

Raising the temperature of your body helps immune cells fight off these infections/diseases

Answer:

Raising the temperature of your body helps immune cells fight off these infections/diseases.

Explanation:

HIGH SCHOOL

Which is a genotype for pea shape? A. r B. R C. RR D. round peas

Answers

The genotype for pea shape is Round- RR or Rr and for the wrinkled -rr. The genotype is the genetic make up of an organisms, it determines the phenotype (the physical trait). In this case; the round pea shape is dominant to the wrinkled shape;which means the phenotype of round shape will be expressed when we have both homozygous dominant (RR) and heterozygous (Rr), while the wrinkled shape will be expressed by homozygous recessive (rr).
HIGH SCHOOL

Humans and other animals need a variety of materials in order to form the molecular building blocks of life. what is the primary source of these materials?

Answers

Food. hope this helps (:
MIDDLE SCHOOL

A small number of finches live in a protected bird area. They are given as much food as they need and have plenty of space. Why would natural
selection not occur in this population?
O
A. There is no diversity in the population,
O
B. The population is above carrying capacity.
O
C. There are enough resources for the birds.
O
D. There is nothing to cause genetic mutations.

Answers

The natural selection would not occur in this population because : ( C ) There are enough resources for the birds.

What is Natural selection

Natural selection is a process whereby populations of organisms living in an environment adapt and change due to selective reproduction of genes in its genotype. Natural selection is triggered by certain environmental factors. In the scenerio protrayed in the question there is an abundance of resources for the birds therefore natural selection will not occur.

Hence we can conclude that there are anough resources for the birds

Learn more about Natural selection : brainly.com/question/1144962

Answer:

C. There are enough resources for the birds.

Explanation:

HIGH SCHOOL

Squirrels gather as many nuts as possible and bury them to prepare for winter. What type of behavior is this?

Answers

Squirrels gathering as many nuts as possible and burying them to prepare for winter is a behavior called fixed action pattern. It is a series or sequence of acts that happens behaviorally in animals. This sequence is unchangeable. 

Answer:

fixed action pattern

Explanation:

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