Answer:
d
Explanation:
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.
Answer:
its b
Explanation:
what is an advantage of external fertilization?
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.
Where are instructions for traits found?
A. On chromosomes
B. On the nucleus
D. On genes
C. On the cell walls
Which human activity contributes the MOST Carbon dioxide to the atmosphere?
A. Fishing
B. Breathing
C. Burning Fossil Fuels
D. i Farming
Answer:
C. Burning Fossil Fuels
Hope it helped :)
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.
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
#SPJ2
How many dots would surround Li in an electron dot diagram?
Answer:
2
Explanation:
all you need is in the photo
Answer:
Im pretty sure it's C? Maybe it's D though.
what are the main parts of the respiratory system
Answer:
lungs ,diaphragm ,mouth ,nose
Answer:
Explanation:
Nose.
Mouth.
Throat (pharynx)
Voice box (larynx)
Windpipe (trachea)
Large airways (bronchi)
Lungs.
Using the graphs above which statement is FALSE?
Answer:
Where is the graph
Explanation:
Sorry for asking ,but there is no graph
What are the combined alleles of all individuals in a population called?
A
relative frequency
B.
phenotype
С
genotype
D
gene pool
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
For the food chain GRASS --
---> GRASSHOPPER -
---> RAT---> SNAKE -
---> HAWK, if humans
destroyed 75% of the grassland ecosystem, which of the following organisms would
disappear first in this habitat?
Answer:
hi bro mark me ad a brainlist
Explanation:
snake is the right answer
Which point shows the prevailing westerlies?
O1
O 2
O3
O4
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.
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
Answer:
C. Ability to use energy.
Explanation:
All living organisms perform several life processes in order to live, which results in use of energy.
1 point
Earth's layers can be described by either chemical composition or by
physical properties. Going out from the center of the earth, the layers of
earth as described by their chemical composition are: *
Core, Mantle, Crust
Crust, Mantle, Core
O Inner Core, Outer Core, Mesosphere, Asthenosphere, Lithosphere
Answer:
Core, Mantle, Crust
Explanation:
The layers of the earth are the inner core, the outer core, the mantle, and the crust.
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
Mitosis produces 2 genetically identical diploid cells. Meiosis produces
2 genetically different diploid cells.
2 genetically different diploid cells.
4 genetically different haploid cells.
4 genetically different haploid cells.
4 genetically identical haploid cells.
4 genetically identical haploid cells.
2 genetically identical diploid cells.
2 genetically identical diploid cells.
Answer:
4 genetically different haploid cells
Explanation:
meiosis gives rise to four unique daughter cells, each of which has half the number of chromosomes as the parent cell.
4 genetically different haploid cells.
What is Meiosis?
In sexually reproducing organisms, meiosis is a kind of cell division that results in a reduction in the number of chromosomes in gametes (the sex cells, or egg and sperm). Body (or somatic) cells in humans are diploid, meaning they have two sets of chromosomes (one from each parent).
The egg and sperm that combine during fertilization must be haploid, or having only one pair of chromosomes, in order to sustain this state. Each diploid cell divides twice during meiosis to produce four haploid daughter cells, which are the gametes.
Nearly every human cell contains 46 chromosomes, 23 of which come from one of our parents and 23 highly similar chromosomes from the other parent.
Therefore, 4 genetically different haploid cells.
To learn more about Haploid cells, refer to the link:
https://brainly.com/question/14259166
#SPJ6
The different forms of a gene are called
(1 Point)
traits
hybrids
alleles
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?
Answer:
Explanation:
Metal
someone PLEASEEEEEE answer this question for me i really want to pass ); <333
HURRY UP, I DON'T HAVE ANY TIME? PLEASE??? Provide three examples of predator-prey interactions, each from a different ecosystem. (who is eating who? Explain + identify what ecosystem are they in) (please something that's is related to marine biology)
Answer:
Shark and seal (Ocean), Lion and zebra (Savana), Chameleon and bug (Rainforest). Hope this was quick enough.
Explanation:
please help i’ll give the brainliest if you give a correct answer tysm
Answer:
C. how close earth is to the sun
Answer:
C
Explanation:
where did it all go wrong
Match type of adaptation to the correct example
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
Someone help me pleaseeee
Answer:
oxygen and carbon dioxide
Answer:
B
Explanation:
oxygen and carbon dioxide
How do cells, tissues, organs, and organ systems work
together in a multicellular organism?
Answer:
Key points. Humans—and other complex multicellular organisms—have systems of organs that work together, carrying out processes that keep us alive. ... Cells make up tissues, tissues make up organs, and organs make up organ systems. The function of an organ system depends on the integrated activity of its organs.
Explanation:
What do we call the “X” chromosome that condenses and is “shut off?”
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.
Which is an inherited trait?
O flavor of an apple from a particular tree
O hierarchical status of a wolf ina pack
O ability to ride a bike
O interest in starhp collecting
Answer:
A. flavor of an apple from a particular tree
Explanation:
edge
can virus show response against heat, chemical and temperature?If yes then how?
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 3 characteristics of producers
Answer:
The best examples of producers are plants, lichens and algae, which convert water, sunlight and carbon dioxide into carbohydrates.
Answer:
Producers make their own food. They do not have to obtain energy from other organisms. They obtain their energy from the sun and make food with that energy through the process of photosynthesis. Producers may also be called autotrophs.
Explanation: