A mineral is defined as a natural substance that is neither animal nor plant, has a
A. specific composition and structure, and contains one or more silicon-oxygen tetrahedrons.
B. solid substance or element that is essential to human nutrition.
C. naturally occurring, crystalline, inorganic solid that contains only one element.
D. naturally occurring inorganic solid consisting of chemical elements in specific proportions, whose atoms are arranged in a repeated internal pattern.

Answer:

the answer is A. specific composition and structure, and contains one or more silicon-oxygen tetrahedrons.

Explanation:

PLLLSSSS HELP Stomach acid secretion of HCl is enhanced by all of these except
Group of answer choices

B. presence of aceylcholine

D. presence of gastrin

A. presence of fats in the duodenum

C. presence of histamine

What is needed for an organism to survive

Which of the follow organ systems are needed to be able to play soccer.

uh…did i do this right?

write the main roles of water​

Please answer my question who loves Paddington Bear​

Some familiar products contain some of the same types of atoms. For instance, the chemical formula for baking soda is NaHCO3. The chemical formula for liquid bleach is NaClO, and the chemical formula for table salt is NaCl. Which choice best describes why these three products have some of the same types of atoms in common?
A. There are only so many elements that exist on Earth
B. Most of the products now on the market contain sodium (Na)
C. The three products have very similar properties
D. Most solids and liquids will absorb some oxygen (O) from the air

Construction of a new road system splits a population of a rare snail species into three sub- populations, J, K and L. Each of these populations is reproductively isolated.
The table shows the sizes of the three populations immediately after the building of the road
and again ten years later. DNA analysis was used to find:
p the relative frequency of the dominant allele of a gene
q the relative frequency of the recessive allele of this gene.
The three areas of habitat remained the same as each other over the ten year
immediately after road building
after 10 years
population p q size
1000 0.52 0.48 100 0.63 0.37 10 0.20 0.80
population p size
J 1000 0.50 K 100 0.49 L 10 0.40
q
0.50 0.51 0.60
Which statements are supported by this data?
Statement 1: Statement 2: Statement 3:
Natural selection is occurring in populations K and L.
The Founder Effect is strongest in population L.
The observed allele frequency changes result from genetic drift.
A. 1, 2 and 3 C. Only 2 and 3
B. Only 1 and 2 D. Only 1

If the economy is too big, does it have a negative or positve effect on the environment?

2.what type of ends do the enzymes bamhi and ecori produce? how does this type of end facilitate cloning?

it was raining during lunch and when you entered the building you slipped and fell. What is the reason for this?​

Which group was not present in Linnaeus' system but is present in modern classification systems? A) Species B) Kingdom C) Domain D) Phylum HELP ME

what specific parts of the brain have been affected by the injury so as to cause the muscle weakness and language problems?

explain what a species is and how resources lead to species biodiversity.

Which of the following would be best evidence that the climate and geogly of an area have changed over time

People who have Tay-Sachs disease cannot metabolize some lipids effectively. Tay-Sachs is a recessive disorder. A student used a Punnett Square to determine the probability of offspring inheriting the disease. The results from a Punnett Square are 25% TT, 50% Tt, and 25% tt.

Which statement best describes these cells?
Х
Cell A
Cell B
Cell Blacks vacuoles while cell A has them.
DNA would not be found in either cell A or cell B.
Both cell A and cell
use energy release from ATP.
Both cell A and cell B produce antibiotics.

Which statement is an accurate comparison of aerobic and anaerobic respiration in humans?.

Investigators are studying a signaling pathway in which an RTK activates the monomeric GTPase Ras.

a. True
b. False

What are the advantages of cell division using meiosis?

Why is meiosis important for sexua
reproduction?

With two-thirds of Americans living in urban areas, what is one major factor that can impact the air, water, and soil resource

1. A hedgehog lives in a backyard in England. Every night, the house
owner puts out a bowl of canned cat food and hard-boiled egg. The hungry
hedgehog eats some of the food, then stops when it is no longer hungry. This
pattern helps the hedgehog to maintain a steady energy level and weight. What is
the name for keeping a stable internal environment despite changes in the
outside environment?
A. hormonal control
B. stimulus and response
C. balance
D. homeostastis

Most of the food and waste materials that move into and out of a cell pass through
A.receptor proteins.
c. enzymes.
b. marker proteins.
d. channel proteins.

which means of particle transport requires energy from the cell

Some midwestern farmland in the United States is covered by

Lysozyme is an enzyme found in animals that helps prevent bacterial infections in eyes. Which statement best explains how lysozyme functions?

It acts as a lubricant to wash bacteria out of the eye.
It acts as a lubricant to wash bacteria out of the eye.

It acts as a catalyst to break down harmful bacteria.
It acts as a catalyst to break down harmful bacteria.

It acts as a protective layer to prevent bacteria from entering the eye.
It acts as a protective layer to prevent bacteria from entering the eye.

It acts as a trap to catch bacteria and restrict their movement.

Which of the following best describes hair? Hair is made of mostly tightly packed living cells. Hair does not help control body temperature. Hair growth occurs in the hair follicle. Hair grows at 2. 5mm a month.

Beets add minerals to the soil. The greens are very good for the compost.

How did NASA help to distinguish genetic factors from environmental ones when studying the effects of living space?.