Why would invertebrates fertilise their eggs internally?

Answers

Answer 1

Answer:

The advantage of inside fertilization is that the fertilized egg is protected against dehydration on land. The embryo is segregated from the woman, limiting young predation. The fertilization of internal eggs by a certain male is also improved.

Explanation:

Interior fertilization is the union in the female body of the egg and the sperm. The female has more control over internal fertilization, as opposed to its counterpart, exterior fertilization. There has to be a technique for males to introduce the sperm into their reproductive system in order for internal fertilization to occur.

Copulation, an intromittent organ, is inserted into the vagina or cloaca in mammals, reptiles, and some other group of species. The cloacal kiss is employed in most birds, and the two animals squeeze their cloacas together as sperm is transferred. Salamanders and Spiders are internally regulated by passing a bundle of sperm from the male to the female. Some insects and certain mollusks are fecundated. The embryos are placed as eggs in the organisms or continue to develop within the mother's reproduction tract as young, viviparous creatures after fertilization.


Related Questions

I NEEEDDDDD HEEEELPPPPPPP PLEEEASE :(

Answers

Answer:

I think that the answer is B let me know if I'm wrong

brainiest PLS

Explanation:

A trait that occurs in 900 individuals out of a total of 1,800 individuals occurs with a probability of

Answers

Answer: 0.5

Explanation:

Number of people with traits = 900

Total number of individuals= 1800

To find the probability with regards to the question, we divide the number of individuals having the traits by the total population of individuals. This will be:

= 900 / 1800

= 0.5

3. What is the general pattern of current flow and temperature within the Atlantic basin?

Answers

Answer:

Have both clockwise and anticlockwise directions and warmer temperature.

Explanation:

Atlantic oceans have a circular pattern of surface currents that moves in the clockwise direction in the Northern Hemisphere and counterclockwise direction in the Southern Hemisphere while on the other hand, the temperature of the Atlantic basin is warm and having high salinity in the water. The Atlantic Ocean has about 9 degrees Celsius more warmer than the water of Pacific Ocean that leads to the warmer climate of Atlantic basins.

why do animals in cold countries have thick fur​

Answers

to keep them warm in the winter

what kind of nucleic acid is found in retroviruses? ​

Answers

Answer:

A retrovirus is an RNA virus that is duplicated in a host cell using the reverse transcriptase enzyme to produce DNA from its RNA genome. The DNA is then incorporated into the host's genome by an integrase enzyme. The virus thereafter replicates as part of the host cell's DNA.

posidon spreding the sea legend and the real sience behind it with titonic plates

Answers

Answer:

YA

Explanation:

Jayden wants to model the hydrological cycle. He puts some water in a small plastic cup, draws a line on the cup at the water level, and places the cup upright on a window sill. After three days of being undisturbed, the amount of water in the cup is below the line Jayden drew. This is an example of:

A. Transpiration
B. Evaporation
C. Condensation
D. Precipitation

Answers

evaporation...evaporation occurs when it is warmer and the particles get further apart so they kinda drift off and go their own way(they turn into a gas) then the water in the cup has a less amount so that is why the water is below the line

can someone please help me on how to do this thing it is not hard i just don't get how to answer it

What types of plants live in your biome? Describe the adaptations that help the plant survive in the biome. (Give 5 examples of each)

Answers

So how I would go about this is identifying native plants that live around your area, an example for let’s say California, would be Redwood trees and some of their adaptations is that their bark is so thick that they are able to withstand fires, this also acts as a great resistant to insects and other pests.

I hope this helps!

HELLLPPPPPPP MEEEEEE PLZZZZZZZ HURRYYYY!!!!!!!!

What is a climax community?

A.When succession is complete and biodiverse sustainability has been reached.
B.When limiting factors and interactions of organisms create balance within a community.
C.When the maximum capacity of organisms is reached within a community.
D.All of the above are correct.

Answers

Answer:

B. When limiting factors and interactions of organisms create balance within a community.

A climbing plant wraps around a lattice structure as it grows. This is an example of which type of tropism?

Answers

Answer: I believe it is Thigmotropism.

This is thigmotropism as it is responding to touch. Since the plant cannot support itself, it wraps around the lattice structure.

GIVING BRAINLIEST!!!

What is an example of a community protecting Earth's resources?

A) Cattle ranchers have cut down trees to create space for their cattle.
B) A town has started getting their vegetables transported from far away.
C) A mine has burned down a forest to create room for buildings.
D) A town has started a new recycling and composting program.

Answers

Answer:

D

Explanation:

it just makes sense to me

Answer:

A town has started a new recycling and compost program.

Explanation:

Protecting earths resources, would not be by cutting down trees, burning down a forest( trees), getting vegetables from far away pollutes the car with the way they transport; but recycling helps and protects our earth.

The Canadian lynx and the snowshoe hare have a predator-prey relationship. You will use two sets of population data and present them in a single graph.


Using the second picture below,label the x-axis ‘‘Year of Study’’.Label the x-axis with data listed in the first picture.(pls make sure that the grid your using is same as picture two below)


Based on the sizes of the numbers for each population, create a scale on the two separate y-axes. The snowshoe hare population ranges in size from 5000 to 95000. Label the y-axis on the left side of the x-axis as “Hare population (in thousands)." Number this y-axis from 0 to 100, in intervals of 10. The lynx population ranges in size from 500 to 6000. Label the y-axis on the right side of the x-axis as "Lynx population (in thousands)." Number this y-axis from 0 to 10, in intervals of 1.


Construct a line graph using the data from the first picture below.Use a different coloured like for each population.


Give your graph a title.Create a legend for your graph so it is easy to read.

Answers

9514 1404 393

Answer:

  see attached

Explanation:

This sort of graphing exercise is more easily accomplished using a spreadsheet or charting tool. The result of that effort is attached.

The second attachment is the spreadsheet containing the data and the chart. It is in "open-office" format.

Goats are outside living on the sides of steep mountains. They are eating the
grass and bushes that grow there. It's a clear, sunny day on the mountainside.
What is happening to the carbon dioxide in the air? Is it ONLY being released (as a
product), ONLY absorbed (as a reactant), or being released AND absorbed?

Answers

Answer:

CO2 is being both released by goats in exchange for O2 and absorbed by the plants in exchange for O2, too

ILL GIVE BRAINLIEST IF IT'S RIGHT
What is inside an animal cell?

Answers

Answer:

Nucleus, vaculoe, cytoplasm, cell membrane

thats all I can remember

Answer:

Nucleus,cytoplasm, endoplasmic reticullum,ribosome,mitochondria,Gollgi complex,Vacoule and lysosome.

Explanation:

Nucleus - controls cell activities, contains the DNA for the cell.

Cytoplasm - supports and protects all cellular organelles.

Endoplasmic Reticulum - aids in making proteins, carries materials through the cell.

Ribosome - synthesizes proteins.

Mitochondria - breaks down sugar molecules to release energy, site of aerobic cellular respiration.

Golgi Complex - modifies proteins made by the cell, package and export proteins.

Vacuole - store food, water, metabolic, and toxic waste.

Lysosome - break down old cell parts, break down larger food molecules into smaller pieces.

HOPE IT HELPS YOU

What type of mutation is shown in the DNA strand to the right given the original strand.




Original strand - A A A T T C A T T ---> mutated strand - A A T T C A T T


Group of answer choices


deletion


insertion


translocation

Answers

The answer is Deletion because one of the adenine in the sequence is deleted

When you do something anaerobic, your body makes a natural chemical called __________ that is like emergency energy for your muscles.
Group of answer choices

lactic acid

oxygen

testosterone

sweat

Answers

Answer:

Sweat?

Explanation:

Answers:

lactic acid

Explanation:

In anaerobic respiration, glucose breaks down without oxygen. The chemical reaction transfers energy from glucose to the cell. Anaerobic respiration produces lactic acid, rather than carbon dioxide and water. Unfortunately this can lead to painful muscle cramps.

A low pressure system moves across an area. What kind of weather change do you think you can you expect

Answers

A low pressure system would cause storms to develop- things like increasing wind speed, higher temperatures.

I need helpppp ASAP!!!!!!​

Answers

Answer: D

Almost completely sure it is D

Explanation:

Since the rats are the main source of food, then there will be a decrease in all the species the base off of that one source of food.

D
the rat is the producer/prey

Hummingbirds need large amounts of energy to flap their wings between 60 and 200 times per second. Their wings beat so rapidly that it is difficult to see them move. They often appear suspended in air for extended periods of time without changing their location. Hummingbirds have long bills and grooved tongues to reach into flowers to feed on flower nectar. They also feed on insects.

The body system most directly interacting with the skeletal system to enable hummingbirds to beat their wings between 60 and 200 times per second is the-

F.
muscular system.

G.
integumentary system.

H.
endocrine system.

J.
circulatory system.

Answers

i think the answer would be G

I really need 1-4 pleaseeee

Answers

Answer:

Answer below!

Explanation:

1. Genotypic ratio: 1 : 1 ( GG = 50%, Gg = 50% )

Phenotypic ratio: 1 : 0 ( Since the dominant trait always shows, the plant would only exhibit trait G, green pods = 100 % )

2. Genotypic ratio: 1 : 1 ( Rr = 50%, rr = 50% )

Phenotypic ratio: 1 : 1 ( Oval shell = 50%, round shell = 50% )

3. Genotypic ratio: 1 : 0 ( ss = 100% )

Phenotypic ratio: 1 : 0 ( short tooth = 100% )

4. Genotypic ratio: 1 : 0 ( Bb = 100% )

Phenotypic ratio: 1 : 0 ( brown eyed = 100% )

Hope this helps, good luck!

Can someone please help me!

Answers

with what?????????????????????
In a bacterium, cell division takes place when after chromosome has duplicated, cell membrane grows, cell grows. 9.

A ________ can contain many ecosystems?

A. habitat
B. ecosystem
C. biome
D. population

Answers

Answer:

C. Biome

Explanation:

Hope this helps!

Hiii :) I hope you are having an amazing day.... I need some help and I hope you can help me.

Pick one organism that lives in a savanna and explain why it has adapted to this environment.

Answers

Answer:

let's use Zebra's as an example of an Animal living in the Africa Savannah, these animals have adapted to their environment for survival, during shortage of water and food they migrate (moving to another area) and hibernating (to conserve power) until the season is over.

Explanation: sorry to much

I need help ASAP marking braniiest

Answers

C. Testes

They should’ve taught you this

what is made when a sperm cell combines with the polar nuclei?

Answers

Answer:

Explanation:Two of the nuclei (the polar nuclei) move to the center of the embryo sac and fuse together, forming a single, diploid central cell. This central cell later fuses with a sperm to form the triploid endosperm, which will ultimately provide nourishment for the developing embryo (analogous to yolk in animal eggs).

Answer:

endosperm

Explanation:

The second fertilization results in the endosperm, which is a special tissue used to nourish the embryo.

A group of students is asked to make a model of a plant cell. The group is given different objects to represent cell parts. These objects include puzzle pieces, cardboard, plastic bags, and mini solar cells. Which object could be used to represent the function chloroplasts in the model?

Text to speech
a
puzzle pieces, because they put together proteins
b
cardboard, because it helps support the plant cell
c
a plastic bag, because it stores water and other liquids
d
mini solar cells, because they capture energy from sunlight
PLEASE HELP WILL MARK BRAINLIEST

Answers

Answer:

mini solar cells is the answer.

What are the three types of forests age and structure? ​

Answers

Answer:

Tropical rain forests grow around the equator in South America, Africa, and Southeast Asia,  The temperature is stable year-round, around 27°C (60° Fahrenheit). As you can tell from the name, it rains a lot in these forests. Most tropical forests receive at least 200 cm (80 inches) of rain in a year. Tropical forests generally have a rainy and dry season. Temperate forests occur in the next latitude ring, in North America, northeastern Asia, and Europe, temperature ranges from -30 to 30°C (-22 to 86 F) and the forests receive 75-150 cm (30-60 in) of precipitation per year,

Explanation:

The table shows which mRNA codons code for various amino acids.
Which amino acid sequence will be produced by translation of the
mRNA sequence UAC UCU ACC?
Select one:
a. Tyr - Ser - Thr
b. Thr - Ser - Tyr
c. Asn - Pro - Thr
d. Thr - Pro - Asn

Answers

Answer: A

Explanation:

UAC = Tyr

UCU = Ser

ACC = Thr

So the polypeptide chain corresponds to A

As well as the bathroom, in what other room in the home is hand washing particularly important to reduce the spread of disease?

Answers

The kitchen because that is where food is stored prepared and served. When we eat we put our hand near our face and sometimes in our food so if our hand our dirty we are putting germs near our mouths on our skin and inside our bodies

Number 7 HURRY PLEASE

Answers

Answer:

C

Explanation:

fossil is most likely going to show the structure with bones not detail of the outside

The answer is c to this problem
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