define the term area opaca and area pellucide

Answers

Answer 1

Answer:

Explanatiothe peripheral opaque area that surrounds the area pellucida of a vertebrate embryo (as of a bird) formed by discoidal cleavage.


Related Questions

Plant and Animal Cells
What is the name of this organelle?

Answers

Answer:

Golgi apparatus

Explanation:

If I wanted to prepare to run a marathon, what type of macromolecule would I want
to consume?

Answers

Answer:

Complex Carbohydrates

Explanation:

There are different types of macromolecules and they all have different purposes, but for a marathon carbs, specifically, complex ones would be best. This is because carbs are the main source of energy for the body. Additionally, unlike proteins, they allow for long-term energy; so you could run an entire marathon without running out of energy.

I NEED HELP IN ENVIRONMENTAL SCIENCE PLEASE

Answers

The answer would be B.

In multicellular organisms, life begins as a single cell until blank occurs, causing growth

Answers

the blank is fertilization

Please help!!

When purchasing an electrical device, what are the two financial costs you need to consider? Are there any environmental considerations you would make? Explain your reasoning.

Answers

Answer:

Initial price and operating cost

Are there organisms that can be abiotic and biotic?

Answers

Examples of abiotic factors are water, air, soil, sunlight, and minerals.Biotic factors are living or once-living organisms in the ecosystem.

Biotic describes a living component of an ecosystem; for example organisms, such as plants and animals.

Examples Water, light, wind, soil, humidity, minerals, gases.

Hope this helps!

The least amount of solar energy on an annual basis is experienced at

Answers

Answer: the least amount of solar energy is experienced at the poles

Explanation:

The Earth is roughly spherical. The sun’s light hits directly at the equator, but at a steep angle at the poles, so the amount of light per unit area is less at the poles.

Use the concept of negative feedback to explain body temperature control in humans.

Answers

Answer:

Negative feedback is a vital control mechanism for the body's homeostasis. ... When body temperature drops, the hypothalamus initiates several physiological responses to increase heat production and conserve heat: Narrowing of surface blood vessels (vasoconstriction) decreases the flow of heat to the skin.

Visit a grocery store and look at the packets and cans of different food items.Read the details given on them ,find and note the energy they contain.Make a list of various food items(at least ten)and the amount of energy they contain in kilojoules per 100gm or 100ml.Also mention whic food contain most energy and which contain least energy.

Answers

Answer:

Sweet Corn - 395KJ

Fruit cocktail - 265KJ

Marshmallow - 342KJ

Tuna fish - 132 KJ

beans - 600KJ

noodles - 1600KJ

chips - 458KJ

Soup - 140KJ

cookies - 1761KJ

Juices - 350KJ

Explanation:

The canned food are packed with special packaging material to make the food item freshness last longer. The food items are preserved in tin packs with airtight packaging.

Mitosis goes through two divisions to create diploid cells. true or false

Answers

Answer:

false

Explanation:

mitosis goes through one division cycle

Answer:True.

Explanation:

The verb concentrate means "gather" or "collect." The suffix -ion, used to form nouns, means "state" or "condition." Use this information to define the noun concentration.

Answers

Answer:

The state of gathering together.

Explanation:

Concentration is a noun and it refer to the act of gatthering closely or the state of gathering together or condition of collecting things or substances together.

In biochemistry it can mean the measure of the ratio of mass to volume in a solute and ratio of mass to volume of a solvent in a solution.

Vhat function does the cytoplasm perform in plant and animal cells?
A. It directs cellular activity.
B. It holds the cell organelles.
C. It forms a cellular boundary.
D. It makes proteins for the cell.

Answers

the answer is b ..........

Explanation:

b

What is Jupiters water availability?

Answers

Answer:

Long thought to be virtually dry, it turns out that Jupiter has significant water. New data from NASA's Juno spacecraft, which launched in 2011 and is orbiting the planet right now, suggests that water makes up about 0.25% of the molecules in Jupiter's atmosphere

Explanation:

the planet has about 0.25% of water that makes up the planet

Help plzzzzzzzzzzzzzzz

Answers

Answer:

B) they make the spindle fibers

Explanation:

Answer : Ibelieve it’s to store food not sure but I think so



Condensation occurs in clouds. Explain how and then explain what happens with the clouds gain too
much condensation

Answers

When clouds condensate too much, the water pulls the cloud down and it starts to rain.

Sarah and Thomas are thinking about having kids. They are concerned that because Thomas’s father was diagnosed with cystic fibrosis last year, it could run in the family. Cystic fibrosis is a recessive genetic disorder which affects the respiratory system. Both Thomas and Sarah get tested for the recessive allele (f), with the results indicating that they are each carriers of the disorder (a genotype of Ff).
Is it possible for Sarah and Thomas to develop cystic fibrosis?

Answers

Answer:

No they can not develop it because they are carriers and do not have ff only Ff, but their kids have a high chance of getting it. (50% chance)

Explanation:

I WILL GIVE BRAINLIEST TO THE WHOEVER HELPS ME

Answers

Answer:

Most tissues of the body grow by increasing their cell number, but this growth is highly regulated to maintain a balance between different tissues. In adults most cell division is involved in tissue renewal rather than growth, many types of cells undergoing continuous replacement.

Explanation:

Internal monitors called checkpoints track each step of the cell cycle. In the cell cycle, there are three main checkpoints; one at the end of G1, a second at the transition of G2/M, and a third during the metaphase. Positive molecules of the regulator allow the cell cycle to proceed to the next level.

Mitosis, although continuous process, is conventionally divided into five stages: prophase, prophase, metaphase, anaphase and telophase.

I hope this helps! :)

match the following DNA strand to is complementary strand of RNA TTC-CCA-GAT-TTT​

Answers

Answer:

okay I think it's

AAG - GGU - CUA - AAA

sorry if wrong ;)

In the example about the beaver's teeth, is it possible for just one beaver to evolve and get a favorable trait in its lifetime.

A. Yes because it makes sense it would need better teeth to cut down the tree

B. No because all traits are inherited and better teeth would have to come from those beavers with a trait for better teeth

C. Yes because animals control their traits.

Answers

b is correct here but i cant see d

Please help It is making me cry

Answers

Answer:

What are you supossed to be doing

Explanation:

Answer:

Can you give me the answers?

Explanation:

what does the painting show us about the history of fish in the mediterranean sea?

Answers

Answer:

Uhh.. there ish no painting..

Explanation:

What is a bacteria that is beneficial to humans and what does it do?

Answers

How will you react if I tell you that your body consists of 1 to 2.6 kg of bacteria? Shocked? Well, I can imagine your surprised face. Most people believe that bacteria are dangerous and are responsible for diseases and infections but this isn’t true. In fact the truth is, most of the bacteria are helpful in the functioning of a living body and are also capable of performing many other useful functions. These beneficial bacteria are present in huge numbers inside as well as outside our body. Well let’s check out various types of beneficial bacteria which not only help in proper functioning of our body but also contribute in many other functions in and outside the body. Some of the examples of helpful bacteria are Bifidobacterium, Rhizobium and E.coli.

Beneficial Bacteria – to Humans

Human body has millions of bacteria which participate in different functions of the body. As you know the amount of bacteria present in the body varies from 1 to 2.6 kg, this volume contains a huge number of bacteria. These bacteria can be present in all parts of the body but mostly they are found in the intestine where they help in the process of digestion. They also play a very important role in preventing bacterial infections in genital parts, like yeast infections. Some beneficial bacteria to humans are helpful in maintaining the pH of the body. Some are even involved in protecting the skin from many infections.

They are also helpful in the production of vitamin K and have an important role to play in the functioning of immune system. One of the most common bacteria which are helpful for humans is Escherichia coli. This bacteria is associated with the process of digestion. It is present in the large intestine where the maximum digestion takes place. These bacteria release enzymes which help in the process of digestion and synthesis of various vitamins and nutrients. Beneficial bacteria are also very helpful for the pregnant women. They reduce the chances of postpartum complications and also protects the baby from fungal infections.

Answer:

Probiotics are live bacteria that are good for us, that balance our good and bad intestinal bacteria, and that aid in digestion of food and help with digestive problems, such as diarrhea and bellyache. Bacteria that are examples of probiotics are Lactobacilli and Bifidobacterium.

How can an increase in the falcon population cause an increase in plant population ?

Answers

Explanation:

the eat what eats the plants

Answer:

Hawks might eat herbivore animals, meaning less plants will be eaten by them as there are less

Can someone please help me meee

Answers

Answer:

A. fallopian tube

B. ovary

C.  cervix

D. endometrium

hope this helps!! :)

Explanation:

Answer:

A. fallopian tube B. ovary C.  cervix D. endometrium

What is a network of water-filled canals with thousands of tube feet called?

Answers

Echinoderms I believe! Good luck, hope this helps!!

Can someone help asapp

Answers

Answer:

option A

hope it helps! please mark me brainliest

thank you! have a good day ahead

if u follow me, I will follow u back

Complete with the right sign: -9/11 -10/9 I I

Answers

Answer:

either -20.01 or -1.79

Explanation:

-9/11-10/9=-20.01

9/11-10/9=-1.79 it is probably the 20.01 answer.

Body processes are regulated by which nutrients?
proteins
carbohydrates
All options are correct
lipids

Answers

I think..............

All options are correct




Answer:

C

Explanation:

Protiens, Carbohydrates, and Lipids all influence bodily processes.

how do you know that individual 1 is heterozygous for the trait

Answers

Heterozygous is having 2 different alleles of a certain gene, meaning one is not dominant. Instead one is a recessive such as Aa

Upwelling or Biodiversity

Answers

I’m pretty sure it’s upwelling
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