Biology True or False need help ASAP

Biology True Or False Need Help ASAP

Answers

Answer 1

Answer:

f

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f

Explanation:

here you go u think it should be right


Related Questions

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

HELP ONLY IF YOU KNOW PLEASE!!
A species of beetle can be either black or brown in color. The beetle's color is determined by a single gene, and black is recessive to brown. The soil in the area has become darker and closer in color to the black beetles. Which of the following will most likely occur?

Selective pressures will decrease the number of brown beetles.

Selective pressures will increase the number of brown beetles.

Selective pressures will decrease the number of black beetles.

The overall size of the beetle population will continue to decrease over time.

Answers

Answer:

the first option

Explanation:

As the soil gets darker, brown beetles become easily recognised by predators (like birds) and will be eaten. Black beetles however, are better camouflaged and will less likely be spotted by the birds. Black beetles will survive and interbreed, allowing the recessive allele to be passed on to upcoming generations.

Selective pressure is what makes the genetic pool shift toward a particular genotype with a particular phenotype (recessive black in this case) that gives the new generations a selective advantage. They're more likely to survive and reproduce. Survival of the fittest.

Genotype- the genetic makeup of an organism (eg: the recessive gene for black; bb)

Phenotype- physical feature of an organism as determined by the genotype (the colour black)

Selective pressures will increase the number of brown beetles. The correct option is 2.

What is Selective pressure?

Any factor that reduces or increases reproductive success in a subset of a population may exert evolutionary pressure, selective pressure, or selection pressure, thereby driving natural selection.

Selection pressure can be defined as a force that causes an organism to evolve in a specific direction.

It is not a physical force, but rather an interaction between natural variation in a species and environmental factors that causes certain forms to have an advantage over others.

A beetle species can be either black or brown in color. A single gene determines the color of the beetle, and black is recessive to brown.

The soil in the area has darkened and taken on the color of black beetles. Brown beetle populations will increase as a result of selective pressures.

Thus, the correct option is 2.

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Food chains and food webs are....... used to describe energy transfers

Answers

Answer: As it goes down in the food chain, and as the energy is passed, only 10% is kept as energy- the rest is lost as heat.

Explanation:

Match the mechanism to the most likely outcome for each column. One mechanism may be chosen more than once.

Answers

PUNTOskkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkj

Look at the pic and thanks :)

Answers

answer should be true

If the length of the small intestine is ( 6 ) meters and the length of the large intestine ( 1.5 ) meters. what is the ratio of the large intestine to the small intestine

Answers

Answer:

1:4

Explanation:

According to the information provided in this question, the length of the small intestine is 6 meters and the length of the large intestine 1.5 meters. This means that the small intestine is longer than the large intestine.

To find the ratio of large intestine to the small intestine, we divide each length value by the smallest (1.5) i.e.

Large intestine = 1.5 ÷ 1.5 = 1

Small intestine = 6 ÷ 1.5 = 4

The ratio of large to small intestine according to this question is 1:4

Which statement from the passage is the best evidence of Phillips and Lederer's relationship as of 2002?
A.
" 'Dear Abby' and 'Ann Landers' were both known by their millions of daily readers for their quick wit and sage wisdom."
B.
" 'Dear Abby' has been in publication for more than 50 years and still read daily by more than 110 million people."
C.
"Although they publicly reconciled in 1964, it is said the bitter rivalry continued behind closed doors for decades."
D.
"Lederer's daughter, Margo Howard, said the women had not been in contact for years, and she believes Phillips just wrote the tribute for money."


I NEED YOUR HELP 35 POINTS PLEASE DO NOT TELL ME THE WRONG ANSWER ITS MY LAST QUESTION

Answers

Answer:

D

Explanation:

Step by Step explanation

Consider this plant cell. Which organelle is labeled A?

Answers

Answer:

image so we can answer the question?

Explanation:

Which structure does the immune system target in type 1 diabetes?
a. beta cells of the pancreas
b. liver cells that release glucose
c. insulin receptors on fat cells
d. red blood cells in the bloodstream

Answers

Answer:

The thymus plays an important role in deletion of potentially autoreactive T cells. However, the presence of islet-specific T cells in the circulation of type 1 diabetes patients and healthy subjects indicates that the thymus is not capable of efficiently deleting all autoreactive T cells (Mathis and Benoist 2009).

Explanation:

Answer:

A: beta cells of the pancreas

Explanation:

Type 1 diabetes makes the pancreas produce little to no insulin.

what is the main difference between photosynthesis and cellular respiration

Answers

Answer:

Photosynthesis converts carbon dioxide and water into oxygen and glucose.  Cellular respiration converts oxygen and glucose into water and carbon dioxide.

Explanation:

Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process.

Is this correct guys?

Answers

Yes it’s correct, study hard

Answer:

Yes its correct.

:)))))

I’ll mark u brainly!

Answers

1. Phytoplankton, krill, fish, penguin

2.  Baleen whale, smaller toothed whale

3. krill

4. the phytoplankton are the producers, they make their own food from the sunlight just as plants do.

5. herbivorous zooplankton, phytoplankton

6.  One type is a herbivore it snacks on plants. The other type is a carnivorous type of zooplankton it eats smaller animals.

7. Draw a pyramid with several layers. at the bottom write phytoplankton. above that layer write zooplankton, not the carnivorous type. above that write 1st level carnivorous consumers, such as the fish, krill, other birds, and small squid. above that write 2nd level carnivores like the leopard seal, penguin, and elephant seal. Then above that write Baleen whale, smaller toothed whale, and a sperm whale.

The width of the labelled cell in Figure 4 is 6 mm. The cell has been magnified 750 times.

Calculate the actual width of this cell in mm.

Give your answer in standard form.

Answers

Answer:4,500

Explanation:6mm times 750 equals 4,500

which group of organisms in level 4 of the energy pyramid

Answers

The group of organisms in the energy pyramid are tertiary consumers.

Would collecting the resources that go into bread have long-term or short-term effects on the environment? Explain your answer.

Answers

Answer:

a short term effect. In their life cycle analysis, the researchers found that a loaf of bread emits about a half-kilo of carbon dioxide. Forty-three percent of bread's greenhouse gas emissions can be attributed to the fertilizers used to grow wheat

It is a short term effect. In their life cycle analysis, it has been observed that a loaf of bread emits about a half-kilo of carbon dioxide.

What's the Environmental Impact of a Loaf of Bread?

The life cycle of a loaf o bread is started from growing, harvesting, and transporting to producing flour, shipping to a bakery, baking loaves and packaging them.

In the life cycle it has been found that per loaf of bread about a half-kilo of carbon dioxide is emitted where nearly 43%  of bread’s greenhouse gas emissions can be  used in the fertilizers for wheat cultivation.

Two-thirds of the emissions come from actual fertilizer production.

we are unaware of the environmental impacts of this products mainly concerned with human health or animal welfare.

It was found that  each loaf production is associated with  global warming as a result more amount of fertilizer applied in order to increase their wheat harvest.

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Which of the following biological processes releases oxygen into the
atmosphere?

A. Transpiration
B. Paristalsis
C. Respiration
D. Photosynthesis

Answers

Answer:

D. Photosynthesis.......

The correct answer is D

Help me with this please

Answers

Answer:

1. b

2. a

3. a

4. b

5. b

6. a

7. a or b (they're the same)

(Punnett square and chart attached)

Explanation:

1. The father is a non-roller, as was given in the question. Remember that a phenotype is the physical trait displayed by an organism.

2. In order for the father to be a non-roller, the recessive non-roller allele would have to be expressed. In order for this to happen, he would need two recessive alleles.

3. The gene for tongue rolling is dominant, so if the mother is heterozygous (she has one dominant allele and one recessive allele), then she will be a tongue roller.

4. The mother has a dominant allele and a recessive allele.

5. 50% of the offspring have the Rr genotype and 50% have the rr genotype. This means that there is a 50% of having a tongue-rolling child and a 50% chance of having a non-rolling child.

6. Because the possibility of the offspring having either genotype is 50/50, the ratio would be written as 1:1. Both outcomes are equally likely.

7. Because the possibility of the offspring having either phenotype is 50/50, the ratio would be written as 1:1. Both outcomes are equally likely.

AAAAAAAA

The process of evolution, or genetic change over time, has resulted in the wide variety of living things that exist today. What part do mutations play in the evolution of species

Answers

Answer:

Evolution has occurred thanks to many random changes in the DNA base sequence that we call mutations. This is caused by errors in the genetic information contained in the cells - due to chemical or physical factors - and also its subsequent propagation by replication, being transcendent for evolution those that will later be transmitted to the offspring: somatic cells if reproduction it is asexual and the gametes if it is sexual. For this reason, we say that mutations are the primary source of gene variability, essential for evolution to exist. Thus, without mutations, the genetic variability that natural selection needs would not be present - in addition, such diversity is important for the population to more successfully mold (or adapt) to continuous environmental changes.

Explanation:

A mutation is a change in the information contained in the DNA of cells. The DNA of an organism influences all aspects of its life. Therefore, a change in the DNA of an organism can produce changes in all aspects of its life. The mutation increases the genetic variability of the species and contributes to the adaptation of the species to the environment and to their evolution. Viability and fertility are associated with adaptation, the total capacity of an organism to survive and reproduce. The effect of a mutation in any generation is minimal, but over time a considerable amount of variation from mutations can accumulate. Most mutations are harmful and their carriers die, but those that produce an improvement remain in the species and are essential in the evolutionary process. When mutations appear in a certain population, the genotype changes from generation to generation, appearing individuals with characteristics different from those of their predecessors. This is how the population evolves, being able to originate new species. Mutations that are detrimental to the carrier individual will be eliminated by natural selection.

Based on the cell cycle, if you were going to look at a group of cells under a microscope, how many cells would be in interphase and how many would be in mitosis?

Answers

4 interphase 6 mitosis

The food web illustrated here exists in Yellowstone National Park,
Secondary
consumers
Raven (detritivore)
Gray wolf
Red fox
Primary
consumers
Snowshoe
hare
Moose
Beaver
Red squirrel
Primary
producers

Pine
Maple
Balsam Fir Cottonwood Aquatic plants
If gray wolves were to go extinct, what would be the two most likely effects
on the ecosystem?

Answers

When the gray wolves go extinct, the biodiversity in the ecosystem is decreased and the red fox population is also decreased.

What is the food web?

The food web shows all the possible feeding relationships in the ecosystem. The long web shows interrelationships between living things. We can see that the chain where the gray wolves also includes the beover and the red fox.

Hence, when the gray wolves go extinct, the biodiversity in the ecosystem is decreased and the red fox population is also decreased.

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Respiration is a complicated process broken into several steps, but only two reactants are used up in the
reaction and only three molecules are produced, Identify the reactants and products and describe the steps in
which they are used or produced.

Answers

Respiration is the process by which people (and other organisms) break down glucose (from sugars and charbohydrates in their food) in order to release energy. This process requires oxygen which we breath in.

Respiration occurs in almost every cell in the body because the whole body needs energy.

The energy is released in the form of a molecule called ATP which is easily broken down to provide energy when needed.

This energy can then be used for movement (muscle contractions) and other uses in the body, like making and transporting molecules.

Water and carbon dioxide (which we breath out) are also produced during respiration.

So, the chemical equation for resperation is:

glucose + oxygen --> water + carbon dioxide (+ energy)

Hope this helps

Bacteria that generate reactions such as swelling of tissues, and fever in humans are an example of microorganisms that -

A.form mutualistic relationships with cells of other organisms.

B.break down the organic matter of dead plants and animals.

C.are pathogenic and are able to cause disease by killing host cells.

D.live in close association and provide resources for all plants and animals.

Answers

Answer:

B. Break down the organic matter of dead plants and animal

PLEASE HELP! Giving extra points & will mark as Brainliest!
1.Looking at the map of epicenters shown above, what do you notice about the location of most of the worlds earthquakes? What patterns do you notice?
2. Explain the pattern of the earthquake epicenters shown on the map. Why do most of the world’s earthquakes occur in these areas?

Answers

Answer:

the answer is jesus... the answer to everything is jesus

Explanation:

he is the son of god and died for our sins

Doctors often use certain medications to treat infections. A few people have a reaction to some of these medications, such as itching, swelling, or trouble breathing. This is an example of

Answers

Answer: The body’s immune system overreacting to a usually harmless substance.

A reaction to some medications, such as itching, swelling, or trouble breathing is an example of hypersensitive reaction (drug allergy).

What is drug allergy?

It a an allergic reaction of the body towards a medicine.

What kind of reaction is a drug allergy?

It is a kind of hypersensitive reaction.

What is a hypersensitive reaction?

It is an exaggerated response of a body towards an immunogen.

Why is it caused?

When drugs bind to some immune cells such as T cells, they cause a release of some chemicals which causes an allergic reaction in the body.

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What is a prokaryote?

Question 3 options:

organism that does have a nucleus


organism that does not have a nucleus


organism that is multicellular

Answers

Answer:

a microscopic single-celled organism that has neither a distinct nucleus with a membrane nor other specialized organelles. Prokaryotes include the bacteria and cyanobacteria.

Explanation:

How is the scale of objects used when scientists create models of real world phenomenon and why is it important?

Answers

Answer:

To compare things.

Explanation:

The scale of objects used by scientists to create models of real world phenomenon because the scales helps the scientists to show the difference between objects and their effect on one another that contributes in the process or phenomenon. It is important because it helps us to make accurate models to understand the process or phenomenon that is related to the real world.

An organism has many cells, but cannot move. It does not eat food, but cannot perform photosynthesis cither. What kingdom does it belong to? A,Kingdom fungi, B,Kingdom plantae, C,Kingdom Protista D,kingdom Animalia

Answers

Answer:

Explanation:A,Kingdom fungi

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Q: What is the purpose of Mitosis? Why do cells need to divide?



(costs me 60 points)

Answers

Answer:

The goal of mitosis is to divide a cell to produce two cells, each of which is identical to the parent cell. The cell cycle is the process by which cells multiply, which is necessary for an organism to survive.

Explanation:

Hope this helps :)

What are the two types of evolution? What are the differences between the two?

Answers

Answer:

Divergent evolution/ the evolutionary pattern in which two species gradually become increasingly different.

Parallel evolution/ two or more lineages have changed in similar ways so that the evolved descendants are as similar to each other as their ancestors were.

GOODLUCK. HOPE YOU GET THIS

what are two reasons scientist use shared traits to classify organisms

Answers

Answer:

So that we can identify them in the same species.

Explanation:

Many animals have similar species but different genus.

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