PLEASE HELP ME IM TIMED!

PLEASE HELP ME IM TIMED!

Answers

Answer 1

Answer:

Lipids

Explanation: I take 9th grade biology


Related Questions

How does melanoma affect the functions of the skin?

How does jaundice affect the functions of the skin?

Answers

Answer:

Melanoma is a type of skin cancer that develops in certain skin cells called melanocytes. These are the cells that make the pigment (melanin) that colors your skin. When exposed to UV radiation, such as sunlight, the melanocytes make more pigment, causing the skin to darken or tan. Melanoma starts in cells in the skin called melanocytes. These cells are in the deep layer of the epidermis between the layer of basal cells.

Jaundice causes the skin and the whites of the eyes to turn yellow. The higher the bilirubin level, the yellower the skin. Severe jaundice usually also causes itching and bile. Bile is fluid secreted by the liver.

A population of 200 mice contains 168 brown mice. Brown is dominant to gray. How much of the population would be h e t e r o z y g o u s?
A. 32%
B. 84%
C. 48%
D. 16%

Answers

The answer is B, yo welcome

The heterozygous population in the population of 200 mice is 84%. The correct option is B.

What is heterozygous?

Heterozygous means having two types of alleles for the same type of gene. These alleles show two types of characters for a single gene. An example is a person having an allele of brown and black hair.

The population is 200 of which 168 mice are brown

By the Hardy–Weinberg (HW) equilibrium

q² (bb) = (200 - 168) /200 = 32 / 200 = 0.16

q: √ 0.16 = 0.4

p = 1 - q = 1 - 0.4 =  0.6

p² (BB) = 0.6 x 0.6 = 0.36

Thus, the correct option is B. 84% regarding the heterozygous population.

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Within the cell, vacuoles can be thought
of as which of the following?

Answers

Answer:

B. warehouses

Explanation:

i just paid attention in class. Is that a good enough explanation?

In the experiment by Nirenberg and Matthaei described in the animation, why does it make biological sense that the U2 oligonucleotide showed such poor ability to bind to ribosomes and tRNA charged with phenylalanine

Answers

We have that for the Question "In the experiment by Nirenberg and Matthaei described in the animation, why does it make biological sense that the U2 oligonucleotide showed such poor ability to bind to ribosomes and tRNA charged with phenylalanine"

Answer:

This is because, the genetic code could not involve a two-base codon because such a system would not provide enough unique codons to cover all 20 amino acids.  

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Where on the planet would you receive more direct sunlight?

A) locations in the mid-latitudes

B) at the North Pole

C) at the South Pole

D) places near the Equator

Answers

Answer:

D. places near the equator

D. places by the equator

the sun rotates in the equator and it’s always the hottest near the equator so yeah.

From your experiments, you conclude that the mosquitofish are already
consuming too much oxygen from the pond. Any added goldfish are
suffocating.
You have estimated that the Elodea currently in your pond produce 22.8 mL of
oxygen per hour.
A2 gram goldfish will need 6.2 mL oxygen per hour. A small 0.5 gram
mosquitofish will need 2.2 mL of oxygen per hour.
Determine how many mosquitofish and goldfish the pond can support.

Answers

Answer:

You can have 2 goldfish and 4 mosquitofish as the most balanced answer.

Explanation:

Construct a table to give ONE source, the functions and the effects of the deficiency of the following micronutrients, Vitamin C, Vitamin D, Iron and iodine.​

Answers

Answer:

I say Vitamin D.

Explanation:Confirmed with the test results.

in which phase of the cell cycle do cells check to determine whether the dna is fully and correctly replicated?

Answers

Answer:

at the end of G2

Explanation:

a neuron that synapses in the adrenal medulla is a ___________ neuron, and releases the neurotransmitter ___________.

Answers

Answer:

preganglionic; acetylcholine (ACh)

Explanation:


6. Critical Thinking
and Contrasting How is the
structure of chromosomes in
eukaryotes different from the
structure of chromosomes in
prokaryotes?

Answers

In eukaryotes, chromosomes are complex structures that are formed by tightly coiled DNA looped around histones. They are enclosed in the nucleus. Prokaryotic chromosomes are a loop of DNA in the cytoplasm

which region of the brain contains gyri and sulci?

Answers

Answer:

The cerebral cortex, or the outer layer of the cerebrum

Explanation:

What happens to the neurotransmitter once an action potential is propagated on the muscle sarcolemma

Answers

Answer:

broken down by enzyme

Explanation:

It is immediately broken down by an enzyme. The opening of sodium channels is essential for the initiation of an action potential in the muscle cell membrane

Why is an atom said to be electrically neutral? Please i need further explanation​

Answers

Atoms are electrically neutral because they contain equal quantities of positively charged protons and negatively charged electrons. Electrons and protons have equal but opposite charges, so the result is no net charge.

Have you done back on the grammar trail ? If so please tell me the code for this code!!

Answers

Answer:

The code for which code?

Explanation:

Please Specify

which statement regarding normal microbiota of the human respiratory system is false?

Answers

Given what we know about the respiratory system, we can confirm that the statement regarding normal microbiota of the human respiratory system that is false is option B " The upper respiratory tract is mostly sterile".

As far as the human respiratory tract and system, it was previously believed that the upper tract contained bacteria while the lower respiratory tract was sterile. Recently, however, this has been proven to be false. Bacteria are in fact present in the entire respiratory tract even in healthy individuals. For this reason, options a, c, and d are true, and the only false option present is b.

This question was answered based on the complete question found online that states:

Which statement regarding normal microbiota of the human respiratory system is FALSE?

a) The trachea normally may contain a few bacteria.

b) The upper respiratory tract is mostly sterile.

c) The ciliary escalator in the bronchial tubes keeps the lower respiratory tract nearly sterile.

d) Potentially pathogenic microorganisms are present in non-sterile portions of the respiratory tract but usually do not cause disease.

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Headlands are formed through wave deposition

True or False

Answers

Answer: True

Explanation: The movement of water and sediment down a beach caused by waves coming in to shore at an angle. A beach formed by longshore drift that projects like a finger out into the water. A sea arch is formed through wave erosion. Headlands are formed by through wave deposition.

A B C or D Helpppppppppppppppppppppppp

Answers

Answer:

A

Explanation:

Answer:

It's letter C this is the answer

freshwater fish excrete nitrogenous wastes as _____.

Answers

It released such as poop and children

in which structure would you expect to find a chloroplast?

Answers

Answer:

in plant cells and eukaryotic algae

Explanation:

Why do scientisits use light rays to represent light rays

Answers

Light rays allow us to draw clear diagrams showing the motion of light, including reflection (like bouncing off mirrors) and refraction (the bending of light when moving from one transparent material to another). This is called ray tracing. ... Trying to show interference and diffraction is a limitation of using rays.

why do heart cells have a higher percentage of mitochondria than liver and pituitary gland cells?

Answers

Answer:

This is because the heart requires large amounts of energy in order to pump blood to the rest of the body. The mitochondria produces ATP for energy, thus heart cells contain a higher percentage of mitochondria for energy to pump blood.

The heart cells have a higher percentage of mitochondria than liver and pituitary gland cells because the heart requires large amounts of energy in order to pump blood to the rest of the body. The mitochondria produces ATP for energy, thus heart cells contain a higher percentage of mitochondria for energy to pump blood.

What is the role of mitochondria in producing energy?

The role of Mitochondria in producing energy are in charge of producing energy as ATP. The heart muscle has the highest energetical requirements. Several mitochondria compose these muscle cells because too much energy is needed to pump blood constantly.

Mitochondria are known as the one of the biggest organelles in the cell. They are semi-autonomous organelles surrounded by a double membrane that reproduce by binary fission and contain their own DNA, RNA, and ribosomes. Mitochondria are in charge of aerobic cell respiration, the process by which cells use organic compounds and turn them into energy.

Therefore, The mitochondria produces ATP for energy, thus heart cells contain a higher percentage of mitochondria for energy to pump blood.

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Why do cells need to use active transport? Give one example of how cells use active transport.

Answers

We need active transport to move things against a concentration gradient. An example is moving amino acids along human intestinal tract.
An example in plants is active transport of mineral ions into root hair cells

earthquakes occur at weak palces in the crust knows as

Answers

Answer:

Divergent plate Boundaries

Yea, the person above me is 100% correct lol, they are called divergent plate boundaries

a
. Protons have a charge and an electron has a charge and they are to each other.
a) positive, negative, attracted
c) positive, neutral, attracted
b) positive, neutral, repellant
d) negative, positive, attracted

Answers

Answer:

Your answer is (A), positive, negative, attracted.

I hope this helped at all.

Help me asappp!!!

Which two activities are practical applications of magnetism?
A. Separating steel nails from aluminum nails
B. Using the North Star to find which way is south
C. Hammering steel nails into wooden boards
D. Finding which way is north with a compass

Answers

Answer:

It is d and a

Explanation:

What is is called when a doctor removes both an ovarian cyst and the affected ovary?

Answers

Answer:

b. Oophorectomy

Explanation:is correct. post protected

In osmosis, water moves from an area of high solute concentration to an area with lower solute concentration. True False

Answers

Answer:

FALSE

Explanation:

Osmosis is the process by which molecules of a solvent pass through a semipermeable membrane from a less concentrated solution into a more concentrated one.

Pls mark as BRAINLIEST

why is bromophenol blue added to the individual dna samples?

Answers

Answer:

It allows the observer to view how far the DNA samples travel.

Explanation:

It was an answer on a test I just got back.

in gel electrophoresis, a loading dye is usually added to the sample of dna to be loaded in the wells of the gel. why would this be important?

Answers

Answer:

Gel loading dye is typically made at 6X concentration (0.25% bromphenol blue, 0.25% xylene cyanol, 30% glycerol). Loading dye helps to track how far your DNA sample has traveled, and also allows the sample to sink into the gel. ... It is important to use the same running buffer as the one used to prepare the gel.

Photosynthesis is a process in which _______ energy is converted to _______ energy.
A.
light; electrical
B.
heat; chemical
C.
light; chemical
D.
chemical; light

Answers

Answer:

C is the answer i think

light,chemical

Answer:

I'm gonna say C is the answer

Explanation:

because the sunlight goes in the plant and comes out as oxygen

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