a __ is a hollow ball of cells that results from mitosis from within an embryo. a) blastula b) blastopore c) protostome d) dueterostome

Answers

Answer 1

Answer: A. Blastula

Explanation:


Related Questions


What do folded mountains indicate happened in an area?

(A) Tectonic plates have been sliding past each other

(B) Tectonic plates have stopped moving and remained still.

(C) Tectonic plates have been travelling away from each other.

(D) Tectonic plates have collided and pushed against each other.

Answers

Answer:

Fold mountains are created where two or more of Earth's tectonic plates are pushed together. So I'm pretty sure its D.

Explanation:


Which of the following is a way in which the atmosphere does NOT
interact with the hydrosphere? *
A). Decreasing the salinity of oceans from increased temperatures causing glacial
melting.
B). Developing hurricanes over warm ocean currents.
C).Increasing the amount of water evaporation from oceans and global temperatures
rise.
D). Gases moving sediment from hill tops

Answers

The correct answer is d. Please give me brainlest let me know if it’s correct or not okay thanks bye

What does it mean to germinate?

A To stay underground
B To stay covered
C To start to die and wither
D To sprout or grow

Answers

Answer: the answer is to sprout or grow

Why are disease and infection easily given

to organisms that reproduce sexually?: The given because they are easier to be transmitted threw unsafe sexual activity

Answer:

D

Explanation:

Definition of germinate

(of a seed or spore) begin to grow and put out shoots after a period of dormancy.

Which of these statements is true of sexual reproduction?

HELP PLEASE HURRYYY!!!!!

It requires two parents and results in offspring that have characteristics of each parent.

It requires one parent and results in offspring that are genetically identical to the parent.

It requires two parents and results in offspring that are genetically identical to one parent.

It requires one parent and results in offspring that have half of the genes of the parent.

Answers

Answer:

A

Explanation:

Sexual requires two parents and will increase genetic variation

Hope this helps

Answer:

2nd one

Explanation: Dont have one

Need help ASAP! Will give brainliest;) NO links please, will report.

Which statement is part of Darwin’s theory of evolution by natural selection?

A). Acquired characteristics that are inherited are the cause of evolution.

B). The organisms that are the fittest are always largest and strongest.

C). The number of offspring is not related to fitness.

D). More offspring are produced than can possibly survive.

Answers

D

More offspring are produced than can possibly survive.

Which part always comes FIRST in the scientific name?

Answers

Answer:

The first part of the scientific name is the genus, and it is always capitalized. (The plural is "genera"). The second part is the species epithet. The entire name is written in italics.

Explanation:

hope this helps

Variation in genotype is caused by
O None of the above
e phenotypes changing more quickly than genotypes.
o recombination of genes as a result of sexual reproduction.
O
O mutations only.

Answers

Answer:

Mutations, the changes in the sequences of genes in DNA, are one source of genetic variation. Another source is gene flow, or the movement of genes between different groups of organisms. Finally, genetic variation can be a result of sexual reproduction, which leads to the creation of new combinations of genes.

Who suggested that the distance of a galaxy is proportional to its recessional speed

Answers

Answer:

Edwin Hubble

Explanation:

Which two processes involve gametes?
A. Sexual reproduction
B. Mitosis
C. Asexual reproduction
D. Meiosis

Answers

A and D
Meiosis produces sperm cells and egg cells
And sexual reproduction uses sperm cells and egg cells to produce a fetus

P-waves vibrate molecules by *

Answers

volume change it travels through all types the media......

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16
Select the correct answer from each drop-down menu.
What type of grain farming generally occurs in the United States?
This type of farming relles heavily on
Farmers in the United States are engaged in
to cultivate large areas of land.

Answers

Answer:

Corn.

Explanation:

Corn is a type of grain farming generally occurs in the United States because of its demand to the livestock sector of United States of America. This corn crop is cultivated by farmers on large areas of land in order to fulfill the requirements of the livestock sector. Corn is a cash crop and can be cultivated in different states and regions of United States such as Illinois, Iowa, Indiana, eastern portions of South Dakota and Nebraska, western Kentucky and Ohio.

After fertilization, the successful development of a mature, full-term fetus depends on A. The release of human chorionic gonadotropin (hCG) by the developing placenta AND the production of estrogen and progesterone by the placental tissues B. the release of human chorionic gonadotropin (hCG) by the developing placenta C. maintenance of the corpus luteum for all 9 months D. all of these E. the production of estrogen and progesterone by the placental tissues

Answers

Answer:

The correct option is A (The release of human chorionic gonadotropin (hCG) by the developing placenta AND the production of estrogen and progesterone by the placental tissues).

Explanation:

The developing placenta release Human chorionic gonadotropin (hCG) during pregnancy. What this hormone does is tell the body (corpus luteum) to produce progesterone to maintain the pregnancy. The presence of Human chorionic gonadotropin is a sign of pregnancy, meaning successful fertilization had happened, and implantation of the embryo had occurred too, preventing another cycle of menstruation.

The successful development of a mature, full-term fetus also depends on estrogen which during pregnancy aids the formation of blood vessels and also aids fetal maturation. While progesterone is a hormone when released during pregnancy helps maintain a healthy pregnancy.

Select the correct answer from each drop-down menu.
The rule of law is important because it
In regard to governments the rule of
law

Blank 1

protects citizens from crime and injustice

helps reduce the number of Supreme Court cases

ensures that an innocent person is not accused of a crime

Answers

Answer:

helps reduce the number of Supreme Court cases

Explanation:

all three are true but in regards to the govenment, the second option should be selected

HELP me plz i really need someones help plz

Answers

Answer:

b

Explanation:

Answer:

あなたが日本語を理解できないなら、答えは申し訳ありませんそれが最後の答えです

Explanation:

(its d)

A scientist is observing various phenomena in the environment. He wants to plot the position of various objects as a function of time. Which plot will yield a periodic wave?
A.
the position of a baseball player rounding the bases
B.
the position of a roller-coaster car traveling along a track
C.
the position of a sticker on a wheel rolling along the road
D.
the position of a raindrop falling to the ground

Answers

Answer:c

Explanation:

Answer:

c

Explanation:

the position of a sticker on a wheel rolling along the road

What am I?
I am all around the world
My pull keeps planets aligned
My push makes things move
I also have a big role in Star Wars.
What am I?

Answers

I think the answer is the sun but i could be wrong

name the gas which is produced during respirated​

Answers

Answer:

When an animal breathes, it takes in oxygen gas and releases carbon dioxide gas into the atmosphere. This carbon dioxide is a waste product produced by the animal's cells during cellular respiration. Cellular respiration occurs in the individual cells. Digested foods have chemical energy stored in them.

Explanation:

What is climate change? O A. Lange-scale changes to weather patterns B. Increasing temperatures only C. Natural cycles of cooling and heating D. Decreasing temperatures only ​

Answers

Answer:

C. Natural cycles of cooling and heating is the best option.

Explanation:

C. is the only answer that describes climate, the others describe weather. Climate is natural conditions over a long period of time while weather is over a short period of time.

Please give brainliest.

The diagram shows the life cycle of a pine tree. What happens during the stage labeled 6?

Answers

Answer:

For Ap3x the answer is:

A seed that contains an embryo plant grows into a young pine tree.

Explanation:

Using what you read in this passage, evaluate the following vacation
activities. Which one would cause the least disruption of the balance of
the coral reef?
A
Sport fishing on the reef
B
Scuba diving to view the reef species
с
Collecting rocks and shells as souvenirs
D
Attracting sharks to the reef with bait for photos

Answers

From the listed human activities, Scuba diving to view the reef species though disruptive, would produce the least disruption to the balance in the coral reef.

What are coral reefs?

Coral reefs are narrow and shallow stretches land where corals ate found and these corals serves as foundation for reefs to form.

The reef is an ecosystem consisting of algaes and fishes as well as some other aquatic organism.

The balance in coral reefs can be disrupted by human activities such as:

Sport fishing on the reefCollecting rocks and shells as souvenirsAttracting sharks to the reef with bait for photos

However, Scuba diving to view the reef species though disruptive, would produce the least disruption to the balance in the coral reef.

Learn more about coral reefs at: https://brainly.com/question/10970167

What are some differences between past and modern snakes?

Answers

Answer:

Past snakes would slither, Modern day snakes would gossip

Explanation:

Past snakes were skinny, had no arms or legs, and could possibly be venomous. Modern day snakes are actual people.

5 What will MOST likely happen to the Alps millions of years in the future?

(A) The Alps will continue to be folded and grow in size.

(B) The Alps will stop folding and will get smaller in size.

(C) The Alps will eventually stop folding and remain the same size.

(D) The Alps will continue to be folded but will remain the same size.

Answers

Answer:

I don't know but im pretty sure its either C or B goodluck

The stage of a cell cycle where the cell is not dividing is called what?

Answers

Answer:

interphase

Explanation:

hello please help i’ll give brainliest

Answers

Answer:

B or the second answer

Explanation:

Answer: I think It is B

Explanation:

Which feature must a community have in order to use wind energy?
A. An average elevation change of 20 feet per mile to allow the wind
to flow downhill
B. Molten rock near groundwater supplies
C. Nets to keep birds and bats away from the turbines
D. An average wind speed of at least 15 miles per hour and enough
land to build several wind turbines
PLEASE HELP ASAP

Answers

molten rocck near ground water supplies

are trees producers?

Answers

In the forest's ecosystem, the trees, shrubs and moss are all producers. They turn water and sunlight into the energy they need to live and grow, through a process called photosynthesis.

Put these in order NO LINKS NO LINKS PLEASE
Choices: bronchi, nasal cavity, capillaries, trachea, pharynx, aveoli, bronchioles

Answers

Answer:

Nasal Cavity, Pharynx, Trachea, Bronchi, Bronchioles, Alveoli and Capillaries.

Explanation:

We first breathe in the air through our nose so it goes through our nasal cavity. After that it goes down our throat past the pharynx (voice box) and through the trachea (windpipe). From here it arrives in our lungs via the bronchi, which then splits into smaller bronchioles which have alveoli at the end of them. The alveoli then have small capillaries which the oxygen goes into so it can travel around the body through the bloodstream.

Hope this helped!

Flowering Locus C (FLC) is a gene that is responsible for flowering in certain plants. FLC is expressed in new seedlings, which prevents flowering. Upon exposure to cold temperatures, FLC expression decreases and the plant flowers. FLC is regulated through epigenetic modifications. What type of epigenetic modifications are present in new seedlings and after cold exposure

Answers

Answer:

- New seedlings: histone acetylation

- After cold exposure: histone methylation

Explanation:

Vernalization is an adaptive mechanism whose objective is to ensure that flowering occurs only after winter (i.e., after cold conditions). In certain plants, this process (vernalization) suppresses the expression of genes that encode repressors of flowering. In Arabidopsis, vernalization is associated with histone modifications at FLC chromatin. The FLOWERING LOCUS C (FLC) is a MADS-box gene that acts as a repressor of flowering in Arabidopsis. Epigenetic modifications control the expression of the FLC gene. The FLC gene is expressed at low temperatures due to histone acetylation at FLC chromatin, and thereby the expression of FLC mRNA transcripts ensures that the Arabidopsis plant cannot flower. Subsequently, as the Arabidopsis plant is exposed to cold, FLC is repressed by the accumulation of trimethylation on lysine 27 of histone 3 (H3K27me3), thereby allowing it to flower when temperatures become warmer.

larry cant do math he sucks

Answers

daamnnn that's tuffff

i can help larry im reslly good st ig

7. Which of the following will NOT help reduce your carbon footprint?

A. Using less water

B. Recycling

C. Driving the car for transportation

D. All of the above will help reduce your carbon footprint​

Answers

Answer: C

Explanation: Driving your car will actually release more carbon dioxide. If you wanted to reduce your carbon footprint you may instead choose to take the bus or ride your bike to your destination

Hope this helps

Answer:

d.

All of the above

Explanation:

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