Biology High School

need help asap
- 20 points , includes .

Need Help Asap - 20 Points , Includes .

Answers

Answer 1

Answer:

D

Explanation:

Everything in there pollutes the environment.

Related Questions

What two types of cells are involved in immune response and have the job of creating a "memory" of exposed pathogens? *
a)A cells and B cells
b)T cells and A cells
c)T cells and B cells
d)red and white blood cells

Answers

Answer:

B  

Explanation:

Touch the stigma and notice how it feels. What is the advantage of this type of texture?
A. The sticky texture allows for capture of prey to help with fertilization
B. The sticky texture allows for the exchange of carbon dioxide to assist with photosynthesis.
C. The sticky texture allows for pollen to adhere to the stigma for fertilization.
D. The sticky texture allows for water molecules to not escape from the plant, thus preventing dehydration.​

Answers

A-Most stigmas are covered with a waxy, sticky substance. This wet substance allows stigmas to provide an important service by re-hydrating dry pollen to prepare the grains to enter the ovary and initiate the process of fertilization.

If a strand of DNA has the following base sequence, what would the base sequence of the mRNA that is transcribed be?
DNA sequence: TAC CAT GTG AGT AAC CGT CCA ACT
mRNA sequence: AUG GUA CAC

Answers

Answer:

AUG GUA CAC UCA UUG GCA GGU UGA

I just don't know what each one is

Stimulus: Ca2+ ion levels in blood are too low
•Sensor: •Control center:
•Effector and action(s):
•Negative feedback:


•Stimulus: Ca2+ ion levels in blood are too high
•Sensor:
•Control center:
•Effector and action(s):
•Negative feedback:

Answers

A. Beacuse effector and actions and sensor control center= stimulus so m=347839.6

9 Luis wants to interview someone who has a career in biotechnology. Which of
the following best describes a career in biotechnology?
F Athena uses a sophisticated telescope to observe stars.
G Zach tracks the number of fish that inhabit a certain coastal area.
H Vincent modifies the DNA of bacteria to study the function of their genes.
I Lindsey writes computer programs that model the three-dimensional
structure of chemical compounds.

Answers

Bio refers to study of living things + technology (is pretty straightforward- i dont think i need to explain this)

This means Vincent modifies the DNA of bacteria to study the function of their genes is the correct answer :)

HELP PLEASE!!!!!! :)

Answers

Answer:

A . 10 is the population density in pond a B .20 is the population density in pond b C . pond b is the larger Population density

What is the definition of an oocyte

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Answer:

Oocyte: A cell in a ovary which may undergo meiotic division to form an ovum

an immature egg cell of the animal ovary; in humans, one oocyte matures during the menstrual cycle, becoming an ootid and then an ovum, while several others partially mature and then disintegrate.

Which of the following would cause an error in DNA replication?
A. DNA polymerase pairing A with G
B. DNA ligase connecting chunks of DNA
C. Helicase making a replication fork
D. DNA polymerase checking the DNA

Answers

Answer:

A. DNA polymerase pairing A with G

Explanation:

Adenine (A) always pairs with thymine (T), and cytosine (C) always pairs with guanine (G).

DNA polymerase pairing A with G would cause an error in DNA replication. The correct option is A.

An error in DNA replication occurs when an incorrect nucleotide is inserted during the replication process.

DNA polymerase is responsible for synthesizing a new DNA strand by adding complementary nucleotides to the existing template strand.

It ensures the accuracy of replication by matching each nucleotide with its complementary partner (A with T and G with C).

If DNA polymerase pairs A with G instead of A with T, it results in a mismatched base pair.

This is considered an error in DNA replication since it introduces a mutation in the newly synthesized DNA strand.

The fidelity of DNA replication relies on the correct base pairing and proofreading mechanisms of DNA polymerase to minimize errors and maintain the integrity of the genetic information.

Thus, the correct option is A.

To know more about DNA replication, click here:

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PLEASE HELP ME

As polar bears' population decrease, it creeps ever close to extinction This decrease in the population is due to loss of habitat (floating sea ice). This loss of habitat is caused by which of the following?
A. oil spills from ocean drill sites
B. human cities and houses being built in their habitats
C. Global warming
D. introduced can toads which are out competing polar bears for food

Answers

C. Global warming


Because of global warming the ice melts away but the polar bears need the icebergs in order to survive, without the icebergs the polar bears will lead to extinction. If global warming continues the ice will continue to melt and the polar bears won’t have any icebergs.

Would DNA fingerprinting be useful in solving crimes if there was no such thing as nonsense codes/junk DNA?

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Yes it would be useful because it can still be run through the database and something Can still be found linked to the person .

Is this correct guys?

Answers

Yes it’s correct, study hard

Answer:

Yes its correct.

:)))))

Does the Second Amendment need to be "revisited" in 2021? yes and why?

I need help pleasee

Answers

Answer:

It needs to be revisited because of the random acts of violence that it enables.

Explanation:

People that have access to weapons of mass destruction use them to kill people for no reason. For example, the sandy hook shooting, the recent Stoneman Douglas shooting, and the Christchurch shooting. All these shootings could have been prevented if there was stronger gun control. If people did not have access to automatic firing machine guns, less people would have died.

* DISCLAIMER *

All ideas expressed in this answer do not necessarily reflect my person views, they are meant for educational purposes, not to spark a debate about the 2nd amendment, do not get offended. (put this in cus some peeps crazy)

what stores and delivers nutrients throughout the cell and transports waste to the cell membrane

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Vacuoles store water, food, and waste. The endoplasmic reticulum (ER) is a series of tunnels throughout the cytoplasm. They transport proteins from one part of the cell to another. Ribosomes are the protein factories of the cell.

Hope it helps uh...

The organelle that is responsible for storing and transporting nutrients through the cells is Vacuoles.

Vacuoles are also know as storage containers, they act as a storage organ in the body. This storage organ helps to transport food substances /molecules in the cell. Vacuoles are composed of enzymes, they help to hold water an food molecules. Vacuoles also help to remove waste substances that are harmful to the body.

The vacuole helps to keep balance in the body as they help to keep useful molecules and also get rid of waste substances.

Please see the link below for more information

https://brainly.com/question/1873317?referrer=searchResults

How do the diaphragm and rib muscles help with breathing? These muscles
pull lungs down to draw in air
change the air pressure
open up the air flow tubes
keep food out of the chest
push blood around the lungs

Answers

When you breathe in, or inhale, your diaphragm contracts and moves downward. This increases the space in your chest cavity, and your lungs expand into it. The muscles between your ribs also help enlarge the chest cavity. They contract to pull your rib cage both upward and outward when you inhale

Please help I need the term’s definitions
17 points,
don’t copy and paste

Answers

Answer:

There you go :3

Explanation:

Paramecium- A single-celled freshwater animal that has a characteristic slipper-like shape and is covered with cilia.

Protist- A single-celled organism of the kingdom Protista, such as a protozoan or simple alga.

Protozoan- A single-celled microscopic animal of a group of phyla of the kingdom Protista, such as an amoeba, flagellate, ciliate, or protozoan.

Pseudopod- A pseudopod or pseudopodium (plural: pseudopods or pseudopodia) is a temporary arm-like projection of a eukaryotic cell membrane that are developed in the direction of movement.

Pellicle- Pellicle (biology), a thin layer supporting the cell membrane in various protozoa. Pellicle mirror, a thin plastic membrane which may be used as a beam splitter or protective cover in optical systems.

Slime Mold- Any of a group (such as Myxomycetes) of organisms formerly held to be lower fungi but now often considered protists that exist vegetative in usually moist habitats as mobile plasmodia and reproduce by spores.

Which statement best describes the chemical substances secreted by the endocrine glands?

Answers

Answer: B if its wrong so be it

Explanation:

Why do deserts tend to form on land at latitudes of 20-30 degrees north and south?

Answers

Answer:

Deserts can form even on tropical coasts beside cold ocean currents, such as the west coast of South America. The currents cool the air, which then rises and warms as it moves over land, drawing up moisture that is later precipitated as the air moves farther inland.

please help me i don’t know nun of this

Answers

Answer:

A and A

Explanation:

Answer:

idek

Explanation:

Which of the following are reasons Earth's atmosphere makes conditions suitable for life? (multiple answers)



stops earthquakes


protects us from harmful radiation


traps heat


provides oxygen for breathing

Answers

Answer:

B and C I think

Explanation:

Those ones make the most sense in my opinion.

Why is it possible that two ecosystems with identical conditions of temperature and precipitation, could support different plants?

Answers

Answer:

Because even if they are similar, they still have a difference between them, and that difference helps other plants.

It is possible because plants require other factors like sunlight and soil nutrients) other than Temperature and precipitation to grow

Plants require some Important factors for its growth and development and they are :

Temperature precipitation Sunlight soil nutrients type of soil

The two ecosystems with identical conditions of Temperature and precipitation might have differences in the amount of sunlight they receive and the Nutrients contained in its soil. therefore the ecosystems although similar can support different plants based on the difference in the amount of sunlight and Nutrients contained in the soil.

Learn more : https://brainly.com/question/22856681

please answer all the three questions​

Answers

Answer:

1. Birds have feathers of different colours.

2. Woodpeckers have long beaks.

3. Sunbird is a non-migratory bird.

or

3. Sunbird is sedentary bird.

Explanation:

hope this helps and is right :)

p.s. i really need brainliest.

Which element is found in both DNA and protein?
Sulfur
Sodium
Nitrogen
Chlorine

Answers

Answer:

nitrogen

Explanation:

Answer:

Nitrogen

Explanation:

Hello There!

DNA and protein is made up of nitrogenous bases which contain nitrogen therefore the correct answer would be nitrogen

help please!!! asap!!

Answers

Answer:

Water

Explanation:

1) Which term describes the circular or bowl-shaped marks in surfaces caused by the impact of a celestial object?
a) Marias
b) Asteroids
c) Craters
d) Orbits

Answers

craters. pretty sure haha
C: craters

Hope it’s right :)

What theories of intelligence relies on the sensitivity to other people’s feelings and the ability to respond to them?

A. Emotional Intelligence by Daniel Goleman and Gardner's Theory of Multiple Intelligences

B. Emotional Intelligence by Daniel Goleman

C. Gardner's Theory of Multiple Intelligences

D. Neither

Answers

Answer:

D

Explanation:

ATT CGA TCA GAC TAC TAT TTC GAA

Answers

Answer:

hi dear fweind:)

Explanation:

1. An electromagnetic wave forms when a particle that has an electric charge
experiences which movement?

Answers

Answer:

where the answer chocies

How do T-cells help with destroying viruses?

Answers

They secrete chemical messages known as cytokines to stimulate the non-specific immune response to continue, to strengthen and to boost appropriate specific responses.

Answer:T-cells are a type of white blood cell that work with macrophages. Unlike macrophages that can attack any invading cell or virus, each T-cell can fight only one type of virus. You might think this means macrophages are stronger than T-cells, but they aren’t. Instead, T-cells are like a special forces unit that fights only one kind of virus that might be attacking your body.The T-cell receptor fits with its antigen like a complex key. When the perfectly shaped virus antigen on an infected cell fits into the Killer T-cell receptor, the T-cell releases perforin and cytotoxins. ... Cytotoxins go directly inside the cell through this pore, destroying it and any viruses inside.

Explanation:

Hope this helps :) Can u plz mark me branliest :)

All of the organisms in the domain Archaea are
A. prokaryotes
B. eukaryotes
C. autotrophs
D. multicellular

Answers

D I think that is the answer

All of the organisms in the domain Archaea are prokaryotes.

Archaea are unicellular organisms with no nuclei, hence are prokaryotes.

Characteristics of Archaea Greek word Archaios means ancient.

They are unicellular organisms that resemble bacteria and have some similarity to eukaryotes.

Hence a third domain Archaea was introduced by Carl Woese based on  ribosomal RNA analysis.

They can live in extreme conditions like higher temperature, higher cold regions etc.

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I NEED HELP PLEASEE :PPP

Answers

Answer:

c

Explanation:

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