Which of these blocks harmful untraviolet rays from the sun

Answers

Answer 1

Answer:

A hat? or Sunscreen?

Explanation:

I really don't know which one works better


Related Questions

1. Explain how dehydration synthesis and
hydrolysis are related.

Answers

Answer: In dehydration synthesis reactions, a water molecule is formed as a result of generating a covalent bond between two monomeric components in a larger polymer. In hydrolysis reactions, a water molecule is consumed as a result of breaking the covalent bond holding together two components of a polymer.

What is the key to studying biology? ​

Answers

Answer:

To learn biology, you have to understand the words and terms used to explain it. As you encounter words you don't recognize, write them down and then look them up. When words seem to have prefixes or roots, take the time to break them down and understand their parts.

Hope it helps to you.

Answer:

If you love to learn about living things and how they relate, studying biology might be the right fit for you.

A cell sends messages to itself via
O paracrine signaling
o the endocrine system
k
o the nervous system
O autocrine signaling

Answers

A cell sends messages to itself via Autocrine Signaling

Autocrine signaling refers to the generation and extracellular secretion of a given chemical messenger that interacts with receptors present in the plasma membrane of the same target cell, thereby initiating a signal transduction pathway.

An example of an autocrine signaling pathway is the production and secretion of the cytokine interleukin-1 (IL-1) pro-inflammatory cytokine in monocytes.

Moreover, paracrine signaling is a type of signaling that occurs between local cells.

Endocrine signaling is a type of signaling pathway that occurs between distant cells. This type of signaling is mediated by chemical messengers called 'hormones' which are released from endocrine cells and travel throughout the body.

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How much do the Tanakas spend on health insurance premiums each year

Answers

Answer:

6,000

Explanation:

What does a cell need to be a prokaryote cell?

please help me i’m stuck !!

Answers

Answer:

The Prokaryotic Cell

Prokaryotes are unicellular organisms that lack organelles or other internal membrane-bound structures. Therefore, they do not have a nucleus, but, instead, generally have a single chromosome: a piece of circular, double-stranded DNA located in an area of the cell called the nucleoid.

What is another word for gas

Answers

Answer:

CNG /LPG

Explanation:

MARK AS BRAINLIEST

During Transcription, an)
is created in the
A. mRNA strand, nucleus
B. polypeptide chain, nucleus
C. protein, cytoplasm
D. tRNA strand, cytoplasm

Answers

Answer:

A. mRNA stand, nucleus

Explanation:

Transcription is defined as the process of copying DNA. This happens so that the cell can produce the proteins necessary for basic life functions.

DNA cannot simply be taken out of the nucleus that easily. So, the DNA must be copied into a different form. That's what RNA is for, specifically mRNA.

mRNA stands for "messenger RNA", which is a copy of DNA that can be transported outside the nucleus and be read to produce proteins in ribosomes.

Transcription happens in the nucleus, where the DNA is housed in. It can't be located anywhere else anyways since DNA cannot leave the nucleus.

Therefore, our answer is A.

Topic: AP Biology

What’s the answer of “The porous cross walls between sieve tube elements”??

Answers

Answer:

The xylem vessels and the phloem sieve tubes are connected end to end to transport the water and the food respectively to long distances in a plant. Their end plates are perforated to allow the easy passage of substances from one vessel and the sieve tubes.

Answer:

Sieve tube cells are placed end to end in phloem The end walls may be transverse or oblique They have many small pores called sieve pits Each sieve pit is lined by a layer of callose Excessive growth of callose closes the sieve pores Due to the presence of sieve pits the end walls are commonly called sieve plates

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Hope it helps mark me brilliant and follow me

What similarities, if any, do you think exist between a human’s reproductive cycle and the life cycle of a fern? What differences, if any, can you think of?

Answers

Answer:

The similarity between ferns and humans is that both go through meiosis and mitosis. But ferns are different because they have multicellular, free-living haploid and diploid forms. In humans, the haploid stage exists in the form of single cells—sperm and eggs. Only the diploid stage that begins with a zygote grows mitotically to form a multicellular, free-living human.

Explanation:

Humans and ferns are similar as both of these organisms fertilize to reproduce while differs in the haploid form of life which is present in the ferns and the male and female reproductive parts present in humans.

 

What is the life cycle of a fern?

The life cycle of fern includes the diploid fern which gives rise to the haploid spores that grows and form a gametophyte plant in which both the male and female reproductive systems are present. The male gamete undergoes fertilization with the female gamete to form a diploid spore (seed) which gives rise to the new fern plant.

Human’s reproductive cycle include diploid animals and the male and female genders which can be distinguished clearly. The male gamete-sperm fertilizes with the female gamete-egg to form the diploid zygote that gives rise to a new human.

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A type of plate boundary when to plates slide past with each other​

Answers

Answer:

ok are you an army BTS Army

if a cut bubbles with peroxide, what does that indicate about what is present inside the blood?

Answers

When poured onto a cut or scrape, hydrogen peroxide encounters blood and damaged skin cells. These contain an enzyme called catalase, which breaks down the hydrogen peroxide into water and oxygen. The fizzing you see in the form of bubbles is the oxygen gas escaping

state 3 main parts of eukaryotic cell

Answers

Answer:

The three main parts of a eukaryotic cell are the cell membrane, the cytoplasm and the nucleus.

Answer:

Cell Membrane, Cytoplasm, and The Nucleus.

Explanation:

Interaction with the Environment

Answers

Answer:

Human environment interaction is the way people adapt and modify the environment. There are 3 types of human environment interaction The way people depend on the environment for food, water, timber, natural gas etc.  The way people modify the environment positively or negatively like drilling holes, building dams.

Explanation:

What is the control group??

Answers

C is the answer because it doesn’t need medication

1.
Who is credited with first observing the cell in a microscope? What year?
2.
What type of organism was first viewed under this microscope?
3.
Explain what you know about eukaryotic and prokaryotic cells, and draw a label
of each.

Answers

Answer:

Robert hooke in the year 1665 was first to observe the cell.

Compare and contract induction and deduction.

Answers

Answer:

Both deduction and induction are a type of inference, which means reaching a conclusion based on evidence and reasoning. Deduction moves from idea to observation, while induction moves from observation to idea. Deduction is idea-first, followed by observations and a conclusion.

Explanation:

Why is the scientific method so important in science

Answers

The scientific method attempts to minimize the influence of bias or prejudice in the experimenter.

Bias is a disproportionate weight in favor of or against an idea or thing, usually in a way that is closed-minded, prejudicial, or unfair. In science a bias is a systematic error.

Question 6 of 10
Which statement best describes science?
A. Science can answer any and all questions,
B. Science cannot answer questions about what people should do
C. Science cannot answer questions about the natural world,
D. Science can answer only mathematical questions,

Answers

Answer:

A..... science can answer all questions

Explanation:

science can answer all questions

Polycythemia is the overproduction of red blood cells. What complications could this create for the circulatory system in the following organs/tissues?

1. Blood
2. Blood vessels
3. Heart
4. Spleen

Answers

Blood clots can cause a heart attack or stroke. They also can cause your liver and spleen to enlarge. Blood clots in the liver and spleen can cause sudden, intense pain.

Slowed blood flow also prevents enough oxygen-rich blood from reaching your organs. This can lead to angina (chest pain or discomfort) and heart failure. The high levels of red blood cells that PV causes can lead to stomach ulcers, gout, or kidney stones.
Blood vessels - deep vein thrombosis (DVT) – a blockage that forms in the blood vessels in your leg before moving elsewhere in your body. Pulmonary embolisms – a blockage in the blood vessel that carries blood from the heart to the lungs.

1. Your friend needs quick energy! What kind of biomoleciste should he eat a lot of? 2. Why? Be specific, what do your cells do with this biomolecule that would help him run? 3. Name two kinds of foods have high amounts of this biomolecule.

Answers

1. Monosaccharide.
2. The most nutritionally important and abundant monosaccharide is glucose, which is used as the major cell fuel in the human body and can be found unbound in body tissues and fluids. Glucose is the building block of several polysaccharides. Galactose and fructose are also used as cell fuel.
3. Honey, and dried fruits such as apples.

Based on what you learned from the research, what has impacted the climate the most in the last 5 thousand years?

Answers

Explanation:

Humans are increasingly influencing the climate and the earth's temperature by burning fossil fuels, cutting down forests and farming livestock. This adds enormous amounts of greenhouse gases to those naturally occurring in the atmosphere, increasing the greenhouse effect and global warming.

You are building a birdhouse when you cut your finger. Predict which body systems would be immediately involved with your reaction to the cut.

A. nervous system, circulatory system, integumentary system
B. digestive system, endocrine system, lymphatic system
C. integumentary system, reproductive system, muscular system
D. skeletal system, respiratory system, urinary system

Answers

Answer:

A.

Explanation:

The  nervous system, circulatory system, integumentary system, will be involved.

Hope this helps, have a great day.

The body systems that would immediately get involved with my reaction to the cut are nervous system, circulatory system, integumentary system. That is option A

The systematic factors that are required for wound healing after sustaining a cut in the finger include:

The nervous system: here the nerve cells in the skin help wounds to heal. When an injury occurs, cells known as glial cells change into repair cells and disseminate into the wound, where they help the skin to regenerate.

The  circulatory system: The cut surfaces become inflamed and blood clot and cell debris fill the gap between them. Phagocytes from the blood stream, begins to remove the clot and cell debris stimulates fibroblast.

The integumentary system: the skin contains extracellular matrix (ECM) which is made of collagen and elastic fibres that provide structure to the skin and are necessary for wound closure.

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Brainstorm and write at least 3 potential challenges or important points to consider when conducting the described
data collection
Example: repeated trials are not mentioned, and this would be important for optimal data collection
A)
B)
C)

Answers

The three(3) potential challenges or important points to consider when conducting a data collection are described below.

Data collection is a detailed process that is used in gathering and measuring information from a selected source by a researcher.

To perform a data collection, the following important points are to be considered :

Cost  of data: before data collection, a researcher should check if the data that is being considered is affordable. this is done to avoid quitting.Accuracy: there are different types of data collection techniques these include: questionnaires, interviews, focus groups, observation and case studies. the data collection technique that should be chosen should provide the most accurate results.Validity of data: if your findings will truly represent the phenomenon you are  claiming to measure, then the data collected is valid.

Therefore the above important points needs to be considered during data collection.

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What do arches and bacteria have in common ?

Answers

Answer:

-Bacteria contain fatty acids on the cell membrane, whereas archaea contain phytanyl. Explain the statement that both types, bacteria and archaea, have the same basic structures, but built from different chemical components. Both bacteria and archaea have cell membranes and they both contain a hydrophobic portion.

Explanation:

Archaea and bacteria are both prokaryotes, meaning they do not have a nucleus and lack membrane-bound organelles. ... Both archaea and bacteria have flagella, thread-like structures that allow organisms to move by propelling them through their environment.Bacteria contain fatty acids on the cell membrane, whereas archaea contain phytanyl. Explain the statement that both types, bacteria and archaea, have the same basic structures, but built from different chemical components. Both bacteria and archaea have cell membranes and they both contain a hydrophobic portion

name the processes A and B shown in Fig 2.1​

Answers

Answer:

this is food chain of living beings

what is The Big Dipper is called in Astronomy?

Answers

Answer:

Ursa Major

Explanation:

known as the great bear

Answer:

The big dipper is aka the ursa major

the little dipper is ursa minor

Explanation:

The head is what to the tail

Answers

the head is cranial to the tail i think

Which bio molecule is responsible for long term energy

Answers

Answer:

C; lapids

Explanation:

which elements would react most easily with each other?

Answers

Answer:

an element with a high electronegativity and an element with a single valence electron

Explanation:

Answer:

The Correct answer would be an element with a high electronegativity and with a single valence electron.

Explanation:

Atoms need 8 electrons in their outershells to be stable. If they don't have eight, they will try to borrow from other atoms. So if an atom only needs one more electron, think of it as being desperate and highly reactive. When an atom with only one valence electron (electron in the outershell) comes along, it's the easiest victim to borrow off of.

I hope this helps!! <3

2. What are the modes of asexual reproduction in Porifera?

(Choose all that apply)

- gemmule formation

- budding

- binary fission

- shedding

Pls help ASAP I’ll give brainiest!!!!!

Answers

Answer:

Shedding, Budding, Gemmule Formation

Explanation:

I took the Quiz

Answer: The correct answers are "gemmule formation", "budding", and "shedding"

Explanation:

I took the test

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