Hi I really need help!! :)
Are the statements about evolution and natural selection True or False?
___ evolution is a theory about the origin of life
___ natural selection is the process through which evolution takes place
___ evolution is observable and testable

Answers

Answer 1
The Answers are
1. F
2. T
3. T
Answer 2

Answer:

First statement is True, second statement is False, third statement is False


Related Questions

Should you be worried about the direction that a plant’s stem will grow if you plant the seeds on their sides? Why or why not?

Answers

Answer:

Explanation:

Metal

Match type of adaptation to the correct example

Answers

What I don’t see nothin

Answer:

hope this helps you! :)

________ is a collection of all the organisms that live in a particular place, together with their nonliving, or physical, environment. They vary in size from all the organisms living on a decaying rock to the whole wetland.

A Biome
B Biosphere
C None of the above
D Community
E Ecosystem

Answers

Your answer is E: Ecosystem

someone PLEASEEEEEE answer this question for me i really want to pass ); <333

Answers

Answer: Third option

How many dots would surround Li in an electron dot diagram?

Answers

Answer:

2

Explanation:

A cell with 20 chromosomes undergoes MEIOSIS. Which of these statements is true?
1 Point)
a. 4 daughter cells will be created and each daughter cell will have 10 chromosomes.
b. 2 daughter cells will be created and each daughter cell will have 10 chromosomes.
c. 4 daughter cells will be created and each daughter cell will have 20 chromosomes.
d. 2 daughter cells will be created and each daughter cell will have 20 chromosomes.

Answers

Answer:

A.

Explanation:

By the end of meiosis 4 daughter cells will be produced with half the amount of chromosomes the original parent cell has, haploid.

A cell with 20 chromosomes undergoes meiosis produces 4 daughter cells and each daughter cell will have 10 chromosomes. Thus option A  is correct.

What is Meiosis?

The cell division in which a cell divides twice to form four haploid daughter cells called as Meiosis.

The cell division occur in two steps nuclear division or karyokinesis and cytoplasmic division called as cytokinesis.

This type of cell division are seen in sexually-reproducing organisms mostly germ cells.

During reproduction diploid organism produces haploid number of gametes such as egg and sperm.

The gametes unite to create a new zygote with the same number of alleles as the parents.

The meiosis occur in 2 stages that is meiosis I, meiosis II and  Each stage is classified into several phases such as Prophase, Metaphase, Anaphase, Telophase, Cytokinesis.

Prophase I of meiosis I can have five subphrases, such as Leptotene, Zygotene,  Pachytene, Diplotene and Diakinesis.

Hence,  option A  is correct.

Learn more about meiosis, here:

https://brainly.com/question/11622266

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Guess the plant, and distinguish it from other gymnosperms. There is a desert shrub with needle-like leaves, and the shrub has a deep root system and produces cones.

Which gymnosperm is this, and how does it differ from other gymnosperms?

Answers

Answer:

★ The answer is B, She is observing a gnetophyte because, unlike other gymnosperms, gnetophytes can have needle-like leaves and deep root systems.

Explanation:

Hope you have a great day :)

1 pts
Question 30
7.3 Muscle cells require a great amount of energy. Which would you expect to find
in large numbers in muscle cells?
O vacuoles
o mitochondria
O centrioles
O endoplasmic reticulum
o ribosomes
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Quiz saved at 10:20 am
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Answers

Answer:

Mitochondria

Explanation:

Mitochondria are the power house of cell which produce ATP

Webbed fingers is inherited as a recessive X-linked trait. An unaffected male has children with an affected female. What is the chance that their male children will have webbed fingers?
A. 50% of their male children will have the trait.
B. 100% of their male children will have webbed fingers
C. 0% of their male children will have webbed fingers.
D. 25% of their male children will have the trait

NOTE : I know that the answer is not A. 50% of their male children will have the trait.

Answers

Answer:

its b

Explanation:

all you need is in the photo ​

Answers

Answer:

D

Explanation:

d because since both bears mated, there is a chance of evolution from there genes

I need the last two questions. Can anyone help?

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1. Color can affect a pocket mouse’s ability to survive because if a light colored mouse is in a dark area, it will not survive. A dark colored mouse will survive in a dark area because it will blend in with its surroundings.

2. On the dark rock, mice with dark fur are more likely to survive because they will blend in with the rock.

Where are instructions for traits found?


A. On chromosomes

B. On the nucleus

D. On genes

C. On the cell walls

Answers

I’m pretty sure it’s either A or C!!
Answer : A. On chromosomes

Explained : “Hereditary information is contained in genes, located in the chromosomes of each cell.” - Genetic Science Learning Center

Help me ASAP please!!!!!!!

Answers

I think it the third one

can virus show response against heat, chemical and temperature?If yes then how?​

Answers

Answer:

Yes, anything can respond to heat and against heat and temp and maybe chemicals including a virus.

Explanation:

The virus can mutate and develop new genes to bounce back the chemical or the heat and temps, it could respond differently than an un-mutated virus because it has adapted to those environments

Hope this helps at least a little<3

What are the combined alleles of all individuals in a population called?
A
relative frequency
B.
phenotype
С
genotype
D
gene pool

Answers

Answer:D, gene pool.

Explanation: relative frequency can refer to the proportion of a particular genotype or phenotype in a population.

Phenotype is the physical expression of the genotype.

Genotype is the specific form of the alleles of genes

Gene pool is the totality of genetic variations in a population

what is a cellular structure that performs a specific function in the cell​

Answers

Answer:

Cells consist of six home functions. They provide structure and support, facilitate growth through mitosis, allow passive and active transport, produce energy, create metabolic reactions and aid in reproduction.

PLEASE HELP ME


1. Which of the following is a characteristic that all living organisms share?
a. Ability to taste and smell
b. Ability to use energy
C. Ability to breath
d. Ability to do photosynthesis

Answers

C I believe because they are living so they are able to breath

Answer:

C. Ability to use energy.

Explanation:

All living organisms perform several life processes in order to live, which results in use of energy.

Which point shows the prevailing westerlies?
O1
O 2
O3
O4

Answers

Answer:

1

Explanation:

Prevailing Westerlies are the winds in the middle latitudes between 35 and 65 degrees latitude. They tend to blow from the high pressure area in the horse latitudes towards the poles. These prevailing winds blow from the west to the east steering extra-tropical cyclones in this general manner.

would C be correct for this question?

Answers

Answer:

Yes, none of those other answers are reasonable

Explanation:

Answer:

Yea

Explanation:

That's the only answer that actually makes sense

The primary reason that osteoporosis accelerates after menopause in women is: * 2 points A. Increased osteoblast activity. B. Reduced levels of vitamin C. C. Diminished osteoclast activity. D. Reduced levels of circulating estrogens.

Answers

Answer:

The correct answer is D. Reduced levels of circulating estrogens.

Explanation:

Estrogens prevent the loss of calcium and ensure its proper mineralization, thus preventing the bones from becoming brittle, maintaining the consistency of the skeleton and preventing osteoporosis. Osteoporosis is a skeletal disease in which there is a decrease in bone mass density. Thus, the bones become more porous, the number and size of the cavities or cells that exist inside them increases, they are more fragile, they resist shocks worse and they break more easily. Menopause is the definitive cessation of ovarian function that, externally, results in the disappearance of the menses and usually occurs around 50 years (the interval goes from 45 to 55 years). It is the gradual loss of calcium in the bones, which accelerates in the first years of menopause due to estrogen deficiency. At the beginning of the disease, there are no symptoms and, as it progresses, there is a tendency to suffer fractures, which leads to a decrease in height.

what is an advantage of external fertilization?​

Answers

Answer: Helps keep the species alive

Explanation:

When the eggs are externally fertilized, there is a greater chance for multiple  different males to fertilize the eggs. This gives Gene diversity, and helps keep the species alive. It may also help keep the eggs in good condition. For example, when fish lay eggs, the water helps keep the eggs moisturized.

Which of the following is not a part of the DNA nucleotide

Answers

Answer:

Which of the following is not part of nucleotide structure? C is correct. The three components of a nucleotide are a 5-carbon sugar, a phosphate group, and a nitrogenous base. A nucleotide does not contain phospholipids; those are molecules that make up the cell membrane and nuclear envelope.

Explanation:

this should be right next time add an atachment

Protein or lysine amino acid is not a part of the deoxyribonucleic acid (DNA) nucleotide.

What is a nucleotide?

A nucleotide can be defined as the subunit of deoxyribonucleic acid (DNA) or ribonucleic acid (RNA) which contains a nitrogenous base.

Furthermore, deoxyribonucleotides which is the basic unit of a deoxyribonucleic acid (DNA) typically comprises the following:

A nitrogenous base.A phosphate group.Deoxyribose sugar (5-carbon sugar).

In conclusion, we can deduce that protein or lysine amino acid isn't a part of the deoxyribonucleic acid (DNA) nucleotide.

Read more on nucleotide here: brainly.com/question/19755749

Someone help me pleaseeee

Answers

Answer:

oxygen and carbon dioxide

Answer:

B

Explanation:

oxygen and carbon dioxide

The different forms of a gene are called
(1 Point)
traits
hybrids
alleles

Answers

I believe it’s alleles

What do we call the “X” chromosome that condenses and is “shut off?”

Answers

Answer:

One of the two X chromosomes is randomly and permanently inactivated in cells other than egg cells, this is called X-inactivation or lyonization

Explanation:   This is all I could find, sorry if it's not what you need.

Will mark Brainliest!

The sequence of bases on one DNA strand (one side of the DNA ladder) is AGCTCAG. What is the sequence of the bases on the opposite strand?

Answers

TCGAGTC

Adenine (A) always pairs up with Tymine (T) while Cytosine (C) always pairs up with Guanine (G)

By dissecting an owl pellet, you can learn __.

A) what the owl is drinking

B) whether the food an owl is eating is diseased

C) what type of animals the owl ate

D) where the owl lives

Answers

It’s really all of the above but i think the best answer is C :)) hope this helped !!

Answer:

C. what type of animal the owl ate

please help i’ll give the brainliest if you give a correct answer tysm

Answers

Answer:

C. how close earth is to the sun

Answer:

C

Explanation:

PLEASE HELP

Students visiting a zoo see a poison dart frog. This bright red frog
is about 2-centimeters long. It eats ants and other small insects.
The poison dart frog secretes a poisonous chemical from its skin.
It lives around green tropical plants.
What is the advantage of this frog having a bright red color in a
green environment?

A)it helps to hide among plant leaves
B)it helps to sneak up on small insects
C)it serves as a warning to hungry predators
D)it prevents overheating in a tropical climate

Answers

It is c because is most animals with bright colors have it as a warning to not eat them and and they are poisonous.

what are the main parts of the respiratory system

Answers

Answer:

lungs ,diaphragm ,mouth ,nose

Answer:

Explanation:

Nose.

Mouth.

Throat (pharynx)

Voice box (larynx)

Windpipe (trachea)

Large airways (bronchi)

Lungs.

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