Biology College

pls i need to pass this class

Answers

Answer 1

Related Questions

please anyone help me

Answers

Answer:

mutualism

hope it's right :)

How are traits inherited by offsring?

Answers

answer:
a trait is a characteristic, such as color or size, that is inherited by an offspring from its parents. The genes that control a trait come in pairs, one gene from each parent. If a gene pair contains a dominant allele, then the offspring will show this dominant trait.

step by step:

Answer:

Traits are passed to offspring by the offspring parents.

Explanation:

the genes that control a trait come in pairs, one from each parent. If a gene pair contains a dominant allele (a variation of genes that will produce phenotype,) than the offspring gains that trait from the dominant parent.

Fred has four daughters. What is the probability that his fifth child will be a boy?
a. 100% b. 50% c. 25% d. 20%

Answers

This might be wrong but I think it’s 50%

Him having four other daughters shouldn’t play a roll in his fifth child gender. There’s a 50/50 chance he’ll have a boy or girl

Chickens that carry both the alleles for rose comb (R) and pea comb (P) have walnut combs, whereas chickens that lack both of these alleles (that is, rr pp) have single combs. From the information about interactions between these two genes, determine the phenotypes and proportions expected from the following crosses:

a. RR Pp × rr Pp;
b. rr PP × Rr Pp;
c. Rr Pp × Rr pp;
d. Rr pp × rr pp

Answers

Answer:

Explanation:

Available data:

There are two diallelic genes that code for chickens combDominant alleles R and P express rose comb and pea comb, respectivelyWhen they are together in a genotype, they express walnut combs, R-P-Recessive alleles are r and pGenotypes with only recessive alleles express single combs, rrpp

So, genotypes and phenotypes would be like

Walnut combs, RRPP, RrPP, RRPp, RrPp (One dominant allele of each gene)Rose comb, RRpp or Rrpp (only R gene with dominant allele)Pea comb, rrPP or rrPp (Only P gene with dominant allele)Single combs, rrpp (no dominant alleles at all)

a) Cross: RR Pp × rr Pp

Phenotypes: Walnut x Pea

Gametes) RP, Rp, RP, Rp

rP, rp, rP, rp

Punnett square) RP RP Rp Rp

rP RrPP RrPP RrPp RrPp

rp RrPp RrPp Rrpp Rrpp

F1) 12/16 = 3/4 R-P-, Walnut-combed animals

4/16 = 1/4 Rrpp, Rose-combed animals

b. Cross: rr PP × Rr Pp

Phenotype: Pea x Walnut

Gametes: rP, rP, rP, rP

RP, Rp, rP, rp

Punnett square) RP rP Rp rp

rP RrPP rrPP RrPp rrPp

F1) 4/16 = 1/4 = 25% RrPP, Walnut-combed animals

4/16 = 1/4 = 25% rrPP, Pea-combed animals

4/16 = 1/4 = 25% RrPp, Walnut-combed animals

4/16 = 1/4 = 25% rrPp, Pea-combed animals

1/2 = 50% Walnut-combed animals, R-P-

1/2 = 50% Pea-combed animals, rrP-

c. Cross: Rr Pp × Rr pp

Phenotype: Walnut x Rose

Gametes: RP, Rp, rP, rp

Rp, rp, Rp, rp

Punnett square) RP Rp rP rp

Rp RRPp RRpp RrPp Rrpp

rp RrPp Rrpp rrPp rrpp

F1) 2/16 = 1/8 RRPp, walnut

2/16 = 1/8 RRpp, Rose

4/16 = 2/8 RrPp, Walnut

4/16 = 2/8 Rrpp, Rose

2/16 = 1/8 rrPp, Pea

2/16 = 1/8 rrpp, single

6/16 = 3/8 walnut, R-P-

6/16 = 3/8 rose, R-pp

2/16 = 1/8 Pea, rrP-

2/16 = 1/8 Single, rrpp

d. Cross: Rr pp × rr pp

Phenotype: Rose x Single

Gametes) Rp, rp, Rp, rp

rp, rp, rp, rp

Punnett square) Rp Rp rp rp

rp Rrpp Rrpp rrpp rrpp

F1) 8/16 = 1/2 = 50% Rrpp, Rose-combed animals

8/16 = 1/2 = 50% rrpp, single-combed animals

Which compound would most likely be found in all living organisms?
cellulose
ethanol
insulin
water

Answers

Answer:

water

Explanation:

its so obvious...

Answer:

cellulose and water .I think are answer

What is NOT a function of the reticular formation?
a. sleep b. breathing c. memory d. pain transmission

Answers

Answer:

c. memory

Explanation:

Memory is not a function of the reticular formation. Sleeping, breathing, and pain transmission all are the functions of reticular formation. Thus, the correct option is C.

What is reticular formation?

Reticular formation is a part of the pons region of brain which controls the sleep-wake cycle and also filters stimuli to separate out relevant background stimuli from irrelevant ones.

Reticular formation is one of the phylogenetically earliest parts of the brain and it is crucial for controlling some fundamental processes such as sleeping, breathing, and pain transmission.

The reticular formation is an essential process for the numerous activities of the brainstem. It is located strategically amid the significant nuclei in the brain cells and the nerve fibers that traverse it. The reticular formation looks like an intricate web network.

Therefore, the correct option is C.

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Planting large numbers of trees would result in —

A
an increase in oxygen production

B
a decrease in oxygen production

C.
an increase in carbon dioxide production

D
a decrease in carbon dioxide production

Answers

the answer would be d

Which of the following is not one of Mendel's Laws?
a) Law of Conservation of Mass
b) Law of Segregation
c) Law of Dominance
d) Law of Independent Assortment

Answers

Answer:

Explanation:

Law of conservation of mass was discovered by Lavoisier

Law of Conservation of Mass is not one of Mendel's Laws. Therefore, the correct option is A.

What are Mendel's Laws?

Gregor Mendel's research with pea plants in the 19th century led him to reveal three fundamental laws of inheritance, known as Mendel's laws. There are three laws:

1. Law of Segregation: Each individual has two alleles for each trait, and this law indicates that these alleles separate (separate) during the development of gametes, or reproductive cells. This indicates that only one allele per trait is present in each gamete.

2. According to the law of independent assortment, the inheritance of one trait is independent of the inheritance of another. In other words, the segregation of alleles for one trait is independent of the segregation of alleles for the other trait.

3. The law of dominance states that when two different alleles are present in an individual, the dominant allele will dominate the recessive allele in terms of expression. Only when both alleles are recessive will the recessive allele be expressed.

Therefore, the correct option is A.

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The barred owl has been moving into the habitat of the spotted owl. This could lead to a reduction in the spotted owl population if what?

Answers

The batter owl is better adapted to habitat changes.

Answer: If there is competition for food and nesting areas.

Explanation: Barred owls and spotted owls are well known as rivals. Barred owls are known to be aggressive towards spotted owls and are both bigger and more aggressive than them.

The chart below shows the inferred evolution of some dinosaurs during three time periods in Earth’s history.
Which dinosaur most likely evolved from Coelophysis?Immersive Reader
(5 Points)

Camptosaurus

Triceratops

Theodont

Tyrannosaurus

Answers

Answer:

camptosaurus

Explanation:

I think it's correct

The Dinosaur that most likely evolved from Coelophysis is known as Camptosaurus. Thus, the correct option for this question is A.

What is Evolution?

Evolution may be characterized as the complete methodology of gradual change that takes place over many generations, during which species of animals, plants, or insects slowly change some of their physical characteristics.

Coelophysis lived during the late Triassic period some 216.5 to 203.6 million years ago. Researchers believe that this small theropod lived on river floodplains where it walked alongside crocodilian-like Camptosaurus. They were small theropod dinosaurs that lived in what is now North America and Southern Africa during the late Triassic.

Therefore, the Dinosaur that most likely evolved from Coelophysis is known as Camptosaurus. Thus, the correct option for this question is A.

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real ans only fast plzz
no wrong ok

Answers

Answer is a!!! Hope this helps

Explanation:

A.Impulse Is The Answer.

DNA is found in _______ of the nucleus of cells.

1) ribosomes
2) chromosomes
3) adenine
4) red blood cells

Answers

It’s b chromosomes because the cell nucleus contains the majority of cells genetic material in the form of multiple linear DNA molecules

What molecule are we testing for to determine if the milk was properly digested?

Question 11 options:

galactose

lactase

glucose

lactose

Answers

Answer:

A lactose tolerance test measures how well your body can process lactose, a type of sugar found in dairy products. Normally, the body is able to process milk and other dairy products thanks to an enzyme in the intestines called lactase, which breaks down lactose during digestion.

Explanation:

D is the answer Lactose

Select the goals of conservation agriculture.

Answers

Answer:

Explanation:

Sustainable agricultural practices are intended to protect the environment, expand the Earth's natural resource base, and maintain and improve soil fertility. Based on a multi-pronged goal, sustainable agriculture seeks to: Increase profitable farm income. Promote environmental stewardship.

Humans and animals have critical periods. True or False?

Answers

Answer:

true

Explanation:

The development period of the animals and human beings starts after the birth when a person starts learning and development.

Answer:

False it the correct answer of Oddeyseyware

Explanation:

. Describe it in your own words

Answers

Answer:

the cycle of the re-growth and how nitrogen affects the elements around us

Explanation: I really just wanted to know if this would help you. hope it did.

Please help!! This is Science
Which of the following will most likely happen if the pancreas does not produce sufficient insulin?

A)Blood sugar will decrease because insulin lowers blood sugar when it rises too high.

B) Blood sugar will increase because insulin increases blood sugar when it falls too low.

C) Blood sugar will increase because insulin lowers blood sugar when it rises too high.

D) Blood sugar will decrease because insulin increases blood sugar when it falls too low.

Answers

C because of the same time we had a lot to

Answer:

number 1

Explanation

i took the test and got it right

Describe Darwin's theory of evolution.
I need answers only in points for my lil sis, otherwise i'll report it..I'll reward brainliest to correct answer.

Answers

Answer:

Darwin's theory of evolution state that"all species of organisms arise and develop through the natural selection of small, inherited variations that increase the individual's ability to compete, survive, and reproduce".

Answer:

Charles Darwin's theory of evolution states that evolution happens by natural selection. Individuals in a species show variation in physical characteristics. Individuals that are poorly adapted to their environment are less likely to survive and reproduce.

why does competition happen?

Answers

Answer: D

Explanation: Competition is a negative interaction that occurs among organisms whenever two or more organisms require the same limited resource. All organisms require resources to grow, reproduce, and survive. ... Therefore, competitors reduce each other's growth, reproduction, or survival.

DUE TODAY
A flower that has showy stamens, but no petals is,
Group of answer choices

perfect

bilateral symmetry

irregular

incomplete

Answers

Your answer would be incomplete

What needs to change so that only the green solutes diffuse across the membrane?

Answers

Diffusion is a process which allows particles to move from areas of high concentration to areas of lower concentration. The process requires that particles are moving. As long as particles are not at a temperature of 0K (absolute zero) they have kinetic energy (energy of movement).

What need to be changed is ; The use of selectively/semi-permeable membrane

To selectively allow the passage ( diffusion ) of a certain type of solute through a membrane in a solution, we should make use of a selectively permeable membrane which allows only the passage of a certain type of solute contained in the solution ( like the green solutes ).

The use of permeable membrane in a solution is to selectively allow flow of solutes or solvent from a region of lower concentration to a region of higher concentration.

Hence we can conclude that what needs to be change is The use of selectively/semi-permeable membrane will allow only the green solutes to diffuse across.

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Scientists follow seismic waves to locate the epicenter.
Please select the best answer from the choices provided
T
F

Answers

Answer: This is true, scientists do follow seismic waves.

Answer:

True, or T.

is what it is

Species with ___ genetic variation are ____ likely to survive?

A. More, less
B. Less,less
C. More,more
D.less, more

Answers

C. Species with MORE genetic variation are MORE likely to survive.

The more variation, the more likely the organism will possess variations of alleles that are suited for the environment to survive.

The answer is c because it’s easier to adapt in an environment!

Someone!! please and thank you

Answers

B. the dad has 2 upper case A's, and the mom has one uppercase A and one lower case a allele.

Answer: B I think the answer I was going for isn’t an option

Explanation:

There are millions of organisms on Earth that scientists have classified into different levels of organization. Which of these characteristics would be most
Important to scientists when classifying organisms?
where the organism lives
how small the organism is
the genes of the organism
the shape of the organism
Previous
Pau
5.50
A
14
3
$
4
backspace
5
6
7
8
o

Answers

Answer:

Explanation:

multiply 5.50 and you know X $50

a.
Alternative energy sources like solar and wind power
are always available
b. are only replenished with human intervention
are renewable
d. are more versatile than fossil fuels
C.

Answers

Answer:

are only replenished with human intervention are renewable

Renewable alternative energy sources like solar and wind power only need human interaction to refill themselves. As a result, choice B is the right one.

Alternative energy sources are ways of producing energy that are more environmentally responsible, renewable, and sustainable than conventional fossil fuels like coal, oil, and natural gas. The significance of creating and utilising alternative energy sources has increased as concerns over the depletion of non-renewable resources and the effects of climate change become more and more apparent. Numerous alternative energy sources are being investigated and used globally due to technological breakthroughs and rising global awareness.

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A population of prairie dogs shares a habitat with a population of bison. The
bison migrate to another area. How will the prairie dog population size
change?
A. It will decrease to zero.
B. It will remain approximately the same.
C. It will increase.
D. It will decrease slightly.

Answers

C. It will increase

PLEASE ANSWER ASAP
Which of these are vestigial structures?
O A. the sharp spines of a cactus
O B. the wings of a butterfly
O C. the hip bones found in some species of snake
O D. the thick fur and layer of fat of some mammals in cold climates

Answers

Answer:

C. the hip bones found in some species of snake

why why why why whywhy

Answers

Answer:

Explanation:

Answer:

What happens ahhhhhhhhhhhhhhhhhhhhh IOI IOI IOI IOI

Explanation:

PLEEASEEE IT IS URGENT I NEED THE ANSWER NOW!

Which best describes respiration?

A. a cell process that releases energy from food
B. a cell process that converts carbon dioxide into energy
D. a plant process where chlorophyll produces sugar energy
.... ..
..... .... ... ..

Answers

Answer:

A. a cell process that releases energy from food

Explanation:

Answer:

It would be B, hope that helped

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