Answer: yolk sac
explanation:
the placenta does not develop for a long time so the alternate way of supplying the developing embryo is through the yolk sac which the embryo can receive nutrients and respiratory gas exchange through which the placenta will be formed later.
Kangaroos are mammals that lack a placenta; therefore, they must have an alternate way of supplying the developing embryo with nutrients, as these should be passed from the mother to the embryo during the time of pregnancy.
What is the function of the placenta in pregnancy?The placenta is an organ that develops during pregnancy to provide nourishment to the growing fetus and to remove waste products from the baby's blood and is attached to the wall of the uterus and connected to the baby by the umbilical cord, it is responsible for producing hormones that maintain the pregnancy, such as progesterone, which helps to keep the lining of the uterus thick, also produces human placental lactogen, which helps stimulate the mother's mammary glands to produce milk.
Hence, kangaroos are mammals that lack a placenta; therefore, they must have an alternate way of supplying the developing embryo with nutrients, as these should be passed from the mother to the embryo during the time of pregnancy.
Learn more about the function of the placenta here.
https://brainly.com/question/10215080
#SPJ5
The question is incomplete; the complete question is below.
Kangaroos are mammals that lack a placenta. Therefore, they must have an alternate way of supplying the developing embryo with
A. Carbon dioxide
B. Enzymes
C. Nutrients
in the phylogenetic tree shown here, which of the following loci represents an ancestor shared by species 1 and 2 but not by species 3?
A. C
B. A
C. B
D. D
where can the DNA of bacteria be found
Answer:
The DNA of most bacteria is contained in a single circular molecule, called the bacterial chromosome. The chromosome, along with several proteins and RNA molecules, forms an irregularly shaped structure called the nucleoid. This sits in the cytoplasm of the bacterial cell.
Many people place bat boxes on their property to provide housing that attracts insect -eating bats. Explain how this activity has a positive effect on the environment.
Answer:
Bat boxes at homes provide housing to insect-eating bats which has two major positive effects on the environment:
Bat boxes provide bats a natural habitat and they act as natural pest control in the environment. They are very helpful for reducing or controlling the population of mosquito and balance the food chain in the environment.Bat is known as very good pollinators which helps in the pollination of flowers or spread their seeds. So bat boxes at home increase pollination in nearby areas and increase biodiversity in the environment.Hence, bat boxes at houses have a positive effect on the environment.
Which is not a basic function of a cell? A. Breaking down molecules B. Making macromoleclues for an organism C. Maintaining a stable external environment D. Removing waste from the cell
Answer:
D. Removing waste from the cell
Explanation:
Hope it helped mark me brainliest
Answer:
maintaining a stable external environment.
Explanation: I just did it
As the trait is dominant and controlled by a single gene, the mutation must have occurred on both
diploid copies. True or false?
A wave with a height of 5 feet and a wavelength of 15 feet has a wave base of __
Answer:
The answer is 7.5 feet.
Explanation:
When a wave has a height of 5 feet and a wavelength of 15 feet then it has a wave base of 7.5 feet. Wave base is equal to the half of the wavelength so if you consider your wavelength to be 15 feet then it is divided into 2 that would give you answer of 7.5 feet.
I hope I helped, please correct me if I'm wrong!
Write one scientific question about the organism in the photo.
Answer:
Please attach the photo of the organism.
Explanation:
1.Explain the kingdom of protozoa and fungi
note that they are different kingdom
2.Explain the difference of bacteria and virus
Answer:
Explanation:
Kingdom Protozoa, as defined in this scheme, does not form a natural group or clade, but a paraphyletic group or evolutionary grade, within which the members of Fungi, Animalia and Chromista are thought to have evolved.
what did the results of the experiment show
What kind of banded rock is formed by cavities in rocks left by gas bubbles?
A. Fossils
B. Marble
C. Agates
What type of consumer is the hawk
A hawk is a primary consumer
Explanation:
Hawk are secondary or tertiary consumers in a food chain. This means that they eat primary and other secondary consumers.
Hope this helps..
Which of the following means a hormone that aids in growth of gonads?
Glycogenesis
Thyrotoxic
Pancreatitis
Gonadotropin
Answer:
thyrootoxic
Explanation:
The hormone which aids in the growth of gonads is Gonadotropin. The correct option is gonadotropin.
Gonadotropins are defined as the hormones which play an important role in the growth and development of gonads. The gonads refer to the male and female reproductive organs, such as the testes and ovaries. Gonadotropins stimulate the production of sex hormones and even regulate the reproductive processes. These homones are essential for the normal functioning of the reproductive system.
Gonadotropins are classified as glycoprotein hormones which are secreted by gonadotropic cells of the anterior pituitary which is present in vertebrates.This family includes the mammalian hormones follicle-stimulating hormone (FSH) and luteinizing hormone (LH), the chorionic gonadotropins, human chorionic gonadotropin (hCG) and equine chorionic gonadotropin (eCG),as well as at least two forms of fish gonadotropins.
Thus, the correct option is gonadotropin.
Learn more about gonadotropin,here:
https://brainly.com/question/29297221
#SPJ4
Which climatic zone is always hot and humid? arid, tropical wet, temperate continental, Mediterranean
Answer:tropical wet, is the anwers
Explanation:
The tropical wet climate zone is the climate zone that is consistently hot and humid. This climate zone is characterized by year-round high temperatures and high humidity, with average temperatures of 80°F (27°C) or more, and annual precipitation of 59 inches (1,500 mm) or more.
What is tropical wet climate zone?The tropical wet climate zone is a type of climate that can be found in areas close to the equator. It is distinguished by high temperature, year-round high humidity and abundant rainfall. Equatorial climate or tropical rainforest climate are other names for this climate zone.
One of the most ecologically diverse regions on Earth is the tropical wet climate zone, which is also an important supplier of natural resources such as timber, fruits and medicinal plants. Deforestation, climate change, and other human activities also pose threats to the region, and they have the potential to have major impacts on the natural and economic systems that depend on this climate zone.
Therefore, the tropical wet climate zone is the climate zone that is consistently hot and humid.
Learn more about climate zone, here:
https://brainly.com/question/31118662
#SPJ3
10. Which describes products that help people meet needs or solve problems?
models
feedback
.
technology
science
Design models ig idk
(◕‿◕✿)
Secondhand smoke only affects those who already smoke, due to increased smoke Innalati
4. (3.08 LC)
What factor best determines whether a person gets cancer? (2 points)
Maternal genes alone determine whether a peson gets cancer.
Paternal genes alone determine whether a person gets cancer.
A combination of environmental and genetic factors cause cancer.
Environmental factors alone determine whether any type of cancer occurs.
Which field of study would be most useful for a person who wants to help preserve a wetland?
What science aims to discover solutions to practical problems?
Answer:
The aim of applied science is to find solutions to practical problems
The aim of applied science is to find solutions to practical problems or science aims to discover solutions to practical problems.
What is natural science?Natural science is the branch of science that deals with the study of natural events, based on experimental proof from research and experimentation. Earth and space science is the study of the Earth, oceans, land, solar system and atmosphere. it covers all fields of the natural science that are associated with the Earth planet.
Life science is the life sciences include the parts of science that include the scientific understanding of living organisms and life( plants, animals , microbes and human beings and physical science as it deals with studies of non-livings things.
Knowledge management approach focuses on making best use of the knowledge with the intent of achieving organisational objectives. It involves discovering, sharing and harnessing of the intellectual resources that a company holds.
Therefore, The aim of applied science is to find solutions to practical problems or science aims to discover solutions to practical problems.
Learn more about physical science on:
https://brainly.com/question/29182445
#SPJ6
Select the correct answer from each drop-down menu.
The image shows the path of a ball that’s thrown.
At positions (A,B,C, or D) and (D,E,F, or G), kinetic energy is maximum. At position (B,C,D,or E), potential energy is maximum.
At position (A) and (G), kinetic energy is maximum. At Position (D), potential energy is maximum.
At point A and G kinetic energy will be maximum while Potential energy is maximum at point D.
Kinetic energy (KE) is initially provided to the ball while it is still in contact with the throwing hand. Once the ball leaves the hand there is no input of energy. As the ball rises the KE is transformed to gravitational potential energy (GPE). This GPE is effectively stored in the height of the ball.Now, when the ball falls back to the ground its potential energy is transformed into kinetic energy, which will continue increasing as it gains momentum, until it finally collides with a surface.Learn more:
brainly.com/question/12337396
Jada wants to eat a meal that will sustain her energy during a long run. Which of these food items is the best source of long-
term energy?
Answer:
So what my teacher told me is we should eat apple and chicken and stuff because u burn off the calories and it make u run faster dont forget water
Explanation:
Answer:
Well you got many....
1) Bananas
2)Fatty Fish
3)Sweet Potatoes
4)Eggs
5)Brown Rice
Explanation:
Hope I helped and plz mark me as brainliest
VERY EASY QUESTION. WILL MARK BRAINLIEST
When two mechanical waves have a displacement in opposite directions, and they overlap, what will the resulting wave look like and why?
The new wave will have the same displacement as the original waves due to constructive interference.
The new wave will have a smaller displacement than either of the original waves due to destructive interference.
The new wave will have a greater displacement than either of the original waves due to constructive interference.
The new wave will have the same displacement as the original waves due to destructive interference.
Which of the following is an example of chemical energy?
Heat given off by a light bulb,
A windmill spinning
Electrons moving in an electrical circuit
Energy in an apple that a worm eats,
The hip bone of a whale and the appendix of a human are referred to as ______because they have little current importance but were important in the
ancestors of these organisms.
A.embryological structures
B.homologous structures
C.vestigial structures
D.mystery structures
E.analogous structures
Identify the large brown tectonic plate and whether it is oceanic or continental
Option and image is not provided in the question. So the image is attached below and complete question is as following:
Identify the large brown tectonic plate and whether it is oceanic or continental?
A. Eurasian, continental B. South American, oceanic C. African, oceanic D. North American, continental
Answer:
D. North American, continental
Explanation:
Tectonic plates are defined as the region or area of the Earth's crust and uppermost mantle, that is present far below the sea around the world.
The given image shows that the large brown tectonic plate is North America and it is continental plate because it lie under surface land masses.
Hence, the correct answer is D. North American, continental .
Answer:
The answer is D because the plate is not touching the water and is the north American
Explanation:
Which of the following factors will most likely limit the light-dependent reactions of photosynthesis?
A. Light intensity and light quality
B. Temperature and light intensity
C. Carbon dioxide concentration and light quality
D. Carbon dioxide concentration and temperature
Answer:
C
Explanation:
define the general difference between an autotroph and a heterotroph
Answer:
Explanation:
If we break down the word autotroph, auto means “self” and troph means "feeding" or nourishment. However, when we break the word heterotroph, we get hetero- meaning other, and troph meaning feeders.
This is the critical difference between these two groups. Autotrophs synthesize or make their own food whereas, heterotrophs cannot make their own food thus have to rely on others by eating or absorbing others. For example, plants are autotrophs because they can make their own food using photosynthesis, whereas, humans are heterotrophs because we have to eat others to survive.
Answer:
autotrophs are organisms that can produce their own food from the substances around them using light or chemical energy
heterotrophs cannot synthesize their own food and rely on other organisms plants and animals for nutrition
Explanation:
Which of the following are ways that humans benefit from biodiversity?
Choose all that apply:
Reduced risk of flooding
Food harvested from ecosystems
Raw natural materials, such as wood or rubber
Pollination of crops
Recreation
Medicines derived from plants
Answer: to be honest I would click all
Explanation: Humans benefit from biodiversity as a source of food, medicine, and raw materials. Biodiversity ecosystems provide benefits to humans, like cleaning water or pollination of crops. ... Marine ecosystems store large amounts of carbon.
Human gets benefits from biodiversity such as food material, pollination of crops, medicines, etc. Hence, all options are correct.
What is biodiversity?Biodiversity refers to the varieties of flora, fauna, fungi, bacteria, and all types of microorganisms in our ecosystem. There are billions of species of organisms present on the earth. The highest biodiversity is found in the ocean.
There are many benefits of biodiversity such as the risk of flood reduction because plants stop erosion, food produced by the producers, pollination of crops by pollinating agents, recreation, and raw natural materials like wood, vegetables, spices, and medicines derived from plants.
Human gets all these benefits from biodiversity. Therefore, all options are correct.
Learn more about biodiversity, here:
https://brainly.com/question/13073382
#SPJ2
L 2.2.4 Quiz: Translation
Which amino acid chain will be formed by the codons shown below?
GUC CUU CCG
Messenger
Second base in codon
RNA Codons U
c
A
G
UUU UCU UAU UGU
UUC)
Phe
UCC UAC
}Tyr
UGC)
Cys
с
U
Ser
UUA
Leu
UCA
UAA Stop UGA Stop A
UUG UCG
UAG Stop UGG Trp G
CUU CCU CAU CGU
U
CUC CCC
His
CAC CGC
Leu Pro
CUA CCA CAA
Gin
CGA
CUG CCG CAG CGG
AUU ACU AAU
Asn
AGU
AUC
Ser
lle ACC AAC) AGC
A
Thr
AUA ACA AAA
AUGStart Me ACG
Lys
AGA
AAG) AGG
Arg
GUU GCU GAU GGU
GUC GCC
Asp
GAC, GGC
G
Val
с
Ala
GUA GCA GAA
Gly
Glu
GGA
GUG GCG GAG) GGG
Arg
First base in codon
POCO POCO POCO 20co
Third base in codon
O A. Leu His Ser
O B. Val Leu Pro
O C. Pro Val Pro
O D. Val Pro Pro
Answer:
uuu ucu uau ugu uuc) phe ucc uac }tyr ugc) cys
Answer:
The answer is Val Leu Pro
Mutations that neither benefit nor harm the organism have _________ effect on the organism's survival.
A. a positive
B. a negative
C. an aggressive
D. a neutral
Answer:
Its neutral!
Explanation:
What types of substances are considered drugs?
Answer:
stimulants (e.g. cocaine)
depressants (e.g. alcohol)
opium-related painkillers (e.g. heroin)
hallucinogens (e.g. LSD)
A forest fire in Florida clears thousands of acres of trees. What is the most likely consequence for the animal populations in the surrounding area?
Answer:
Explanation:
they would die or suffer
