please answer this for me

Answers

Answer 1

Answer:

The answer is A

Explanation:

You can take a sample of blood from an animal or a leaf from a plant and put it under a microscope and you will see that they are both made of cells.

Related Questions

Question 9 of 10
How does an atom become a positive ion?
A. It loses an electron,
B. It loses a neutron,
C. It gains an electron
D. It gains a neutron,
SUSAN

Answers

The answer is A it loses and election

Ionization or ionisation is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons, often in conjunction with other chemical changes. The resulting electrically charged atom or molecule is called an ion. Ionization can result from the loss of an electron after collisions with subatomic particles, collisions with other atoms, molecules and ions, or through the interaction with electromagnetic radiation. Heterolytic bond cleavage and heterolytic substitution reactions can result in the formation of ion pairs. Ionization can occur through radioactive decay by the internal conversion process, in which an excited nucleus transfers its energy to one of the inner-shell electrons causing it to be ejected. So it is A

When does facilitated diffusion occur?

Answers

Answer:

The word ‘diffusion’ means free movement across distance, with or without the presence of a barrier. However, there is a phenomenon known as facilitated diffusion which occurs at the cellular level. The cell does not allow free radicals and other harmful substances to enter and harm the cell organs.

Explanation:

Answer:

When certain large molecules are unable to move through the membrane without the help of channel proteins.

Explanation:

Facilitated diffusion occurs when large molecules that are unable to pass through a membrane on their own make use of channel proteins to move from one side of the membrane to the other. Facilitated diffusion can occur when a liquid on one side of a membrane has a higher osmotic pressure than a liquid on the other side of the membrane, but it isn’t a required feature of facilitated diffusion. Similarly, facilitated diffusion can occur when there’s a large membrane potential present, but it isn’t a required feature of facilitated diffusion. Facilitated diffusion doesn’t require the use of energy, so the presence of ATP is irrelevant to facilitated diffusion occurring.

how does metabolism work?

Answers

Answer:

Explanation:

Metabolism: Converting food into energy

Metabolism is the process by which your body converts what you eat and drink into energy. During this complex biochemical process, calories in food and beverages are combined with oxygen to release the energy your body needs to function.

When fresh river water meets the salty ocean the waters do
a
They have different densities.
They form layers.
The fresh water floats on the salt water.
All of the above.

Answers

A.they have differentiations densities

plzzzzzzzzzzzz helpppppppppppppp

Answers

Answer: No it takes a long time to form a fossil. Fossils don’t form within a few weeks. It probably took at least a decade for the dinosaur fossils to form, maybe even a century.

Explanation:

If a female lion runs a distance of 469.2 meters while chasing an antelope, how many millimeters did she run?

Answers

Answer:

the lion ran 469200 millimeters

Explanation:

469.2 x 100 = 469200

Which of the following occurs just before the cell enters the G2 stage of
the cell cycle? *
O The nuclear membrane disintegrates.
O DNA replicates
O Centrioles form
O The nucleolus divides

Answers

Answer:

DNA replicates

Explanation:

S phase (Synthesis Phase) During this phase, the cell makes a variety of proteins that are needed for DNA replication. During S phase, which follows G1 phase, all of the chromosomes are replicated. Following replication, each chromosome now consists of two sister chromatids, the synthesis phase of interphase takes the longest because of the complexity of the genetic material being duplicated. Throughout interphase, nuclear DNA remains in a semi-condensed chromatin configuration

Choose the most appropriate name for the function described below The height reached by the rocket depends on the amount of fuel
A.Height(fuel),or H{f}
B.Fuel{height},or F[h
C.Fuel{rocket) or F{r}
D.Height{rocket}or H[r}

Answers

B. Fuel{height},or F[h

Identify the RNA bases that would pair up with the DNA sequence TGCACT.

TGCACT

ACGTGA

UCGUGA

ACGUGA

Answers

Answer:

Explanation:

It could be C also, but when translating to mRNA you replace T with U. I'd go with D.

el nino affects the weather worldwide.
1 True
2 False

Answers

I believe the answer would be true

i need help asap!! I will reward brainliest!

When focusing a specimen it neccessary to focus on the lowest magnification first before switching to higher magnification. why do you think this is important?

Answers

Explanation:

the lower power will focus betterthan the high magnification

What stage of respiration immediately follows the process depicted below? (2 points)

A)Electron transport chain
B) Glycolysis
C) fermentation
D)krebs cycle

Answers

Image Attached

Answer:

D) Krebs' cycle

Explanation:

The stage of respiration shown is pyruvate oxidation. This is the intermediate stage between the first and second stages of aerobic respiration.

The first stage is glycolysis, which is the breakdown of glucose into two molecules of pyruvate. After pyruvate oxidation, the next stage is the Krebs cycle. The Krebs cycle is a series of reactions that release energy through oxidation of acetyl-CoA.

Describe at least 3 areas of carbon storage in the carbon cycle and how the carbon moves between these sinks

Answers

The carbon cycle is nature's way of reusing carbon atoms, which travel from the atmosphere into organisms in the Earth and then back into the atmosphere over and over again. Most carbon is stored in rocks and sediments, while the rest is stored in the ocean, atmosphere, and living organisms.

Water molecules are able to attach to
other substances, particularly if they are
also polar.

Answers

Answer:

Water molecules form hydrogen bonds with each other and are strongly polar. This polarity allows it to dissociate icons in salts and bonds to each other polar substances such as alcohols and acids thus dissolving them.

similarities between seemingly unrelated organisms can be explained by Darwin's theory that organisms come from common ancestors true or false

Answers

Answer:

false

Explanation:

Answer:

Actually, this is true

Explanation

I just took the test on edu

What type of bond is found in region 2?

A. Hydrogen bonds
B. Peptide bonds
C. Covalent bonds
D. Enzyme substrate bonds

Answers

Answer: A

Explanation:

Which correctly lists three forms of frozen water?

O dew, frost, rain

O frost, hail, sleet

O hail, rain, sleet

Orain, dew, frost

Answers

Answer:

Explanation:

The option that correctly lists three forms of frozen water is "frost, hail, sleet". Therefore, option (B) is correct.

What is frozen water?

Frost is created when water vapor condenses and freezes onto a surface, like the ground or a window.

Hail is produced when powerful updrafts in thunderstorms carry raindrops high enough that they freeze into ice, forming large balls of ice that fall to the ground. This process results in the formation of hail.

Sleet is created when raindrops pass through a layer of cold air close to the ground. This causes the raindrops to freeze into small ice pellets before they reach the ground's surface.

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Autotrophs make glucose during _____.

Answers

Answer:

photosynthesis (autotrophs are mainly plants )

The measure of the mass of an atom is called ________.
Question 1 options:

isotope

proton

energy

atomic mass

Answers

The measure of mass an atom is called atomic mass

Answer:

Explanation:

How can temperature and pH affect enzymes?

Answers

Answer:

raising temperature generally speeds up a reaction, and lowering temperature slows down a reaction. extreme pH values can cause enzymes to denature.

enzymes work best within specific temperature and pH ranges, and sub-optimal conditions can cause an enzyme to lose its ability to bind to a substrate.

Because enzymes work best within specific temperature and pH ranges, and sub-optimal conditions can cause an enzyme to lose its ability to bind to a substrate. Temperature: Raising temperature generally speeds up a reaction, and lowering temperature slows down a reaction. ... Extreme pH values can cause enzymes to denature

Water lilies grow in freshwater ecosystems. When a water lily plant is kept in seawater, it wilts. Which statement best describes what happens to the water lily plants in seawater?

a.Water moves out of the cells of the lily by osmosis
b.Water moves into the cells of lily by osmosis
c.The cells of water lily plants get less oxygen from the seawater
d.The cells of water lily plants lose all important nutrients to the seawater

IN A TEST RN!!!!

Answers

answer: a

explanation: osmosis is a process where water moves from a less concentrated solution to a more concentrated one. seawater has more salt than the water inside the lily plant, so this causes the water from inside the plant to move out. without much water inside, the plant begins to wilt.

New species develop when??? Please help!

Answers

Answer:

by speciation

Explanation:

new species from by speciation, in which an ancestral population splits into two or more genetically distinct descendant populations.

Which statement below best describes the purpose of meiosis in creating gametes?

Answers

The purpose of meiosis is to produce gametes, or sex cells. During meiosis, four daughter cells are produced, each of which are haploid (containing half as many chromosomes as the parent cell).

The purpose of meiosis is to create gametes. Thus, it reduces the number of chromosomes to half.

What is meiosis?

In sexually reproducing organisms, meiosis is a kind of cell division that results in a reduction in the number of chromosomes in gametes (the sex cells, or egg and sperm). Body (or somatic) cells in humans are diploid, meaning they have two sets of chromosomes (one from each parent).

The egg and sperm that combine during fertilization must be haploid or have only one pair of chromosomes, in order to sustain this state. Each diploid cell divides twice during meiosis to produce four haploid daughter cells, which are gametes.

In humans, autosome cells contain 46 chromosomes, while gametes contain 23 chromosomes. Hence, the main purpose of meiosis is to divide the genetic material in half.

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How is IGCSE CEntre?

Answers

Answer:

so good place

Explanation:

Answer:

yepp it is a good place !!

A group of students is studying the movement of thermal energy. The teacher asks the students to place the palms of their hands flat on tops of their wooden desks and describe what is happening. The teacher reminds the students that wood is a better conductor of thermal energy than air. Which statement is the best description of what is happening? Explain why.
1 point
The table feels cold because it is at a lower temperature than the air in the room.
The table feels cold because it is solid, and solids hold thermal energy better than air.
The table feels cold because it is at a lower temperature than the students’ hands and thermal energy is being pulled into the table.
The table feels cold because it is at a lower temperature than the students’ hands and thermal energy is being pulled into the students’ hands.

Answers

Answer:

Explanation:

Because i did this test

Answer:

Explanation:

Because when the room gets cold the table gets cold with it butr when it warms bakc up it takes longer

I’m snapdragons flower color is controlled by incomplete dominance...

Answers

I think you asking this. Heterozygous?

2. Which particle's mass is similar to a proton's mass? ( A. an atom B. a nucleus C. a neutron D. an electron

Answers

Answer:-

Option C. a neutron

In diffusion, molecules
spread out
condense

In diffusion,molecules spread out condense

Answers

Answer:

Spread out

Explanation:

If you were to spray perfume, you would be able to smell if you moved slightly away from where you sprayed it as the molecules have diffused.

Could anyone help me on my recent post?

Answers

Answer:

yes :D

Explanation:

Answer:

shore what u need

Explanation:

A beaker contains 0.64 L of water. What is the volume in milliliters?

Answers

0.64 L in milliliters is 640 milliliters.

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