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MArishka [77]
3 years ago
9

Marsupials, such as kangaroos and koala bears, are mammals. Humans are mammals, too. However, there are differences between mars

upials and humans. For instance, the average baby human is born after spending 38-40 weeks inside of its mother, but baby marsupials are born after only 4-5 weeks. What feature does a marsupial possess that allows babies to be born earlier? A. an egg sac B. a pouch C. fur D. a uterus
Biology
2 answers:
belka [17]3 years ago
3 0
I think the answer is

B. Pouch
Maurinko [17]3 years ago
3 0

Answer:

THE ANSWER IS B POUCH

Explanation:

STUDY ISLAND

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What is the pathway of information through a neuron?
garik1379 [7]

Answer:

The pathway of information through the neuron is based in the connection of axons with other neurons, favoring the conduction of information from one place to another of the nervous system. The way in which a neuron communicates with another, with a receptor or an effector is called synapse.

Explanation:

Neurons are the specialized cells that allow the function of the nervous system, given by the transmission of information in the form of nerve impulses. The way in which information is transmitted by neurons depends on the connection that exists between neurons, by their axons and dendrites, or between enurons and specialized structures such as receptors and effectors.

When a stimulus reaches a receptor, it connects with the neuron that carries the information by afferent pathway to the central nervous system. Once the information is processed, a response is elaborated that travels through the neurons by efferent pathway to an effector cell.

Synapses are simply the connection that exists between neurons, through their axons, or from these cells to the receptor or effector structures. Synapses are located between one neuronal axon and another, or between axons and receptors or effectors, and occur through electrical signals or chemical mediators called neurotransmitters.

8 0
3 years ago
A force is a push or pull that is described by its
k0ka [10]

I would think that it is B or C

7 0
2 years ago
What is the equal movement of molecules going in and out of the cell called​
Ratling [72]
I think it’s called Diffusion
7 0
3 years ago
What are the two main phases of the cell cycle? Check all that apply. meiosis mitosis interphase
myrzilka [38]
Hello.

The answer is  interphase and <span>mitosis.

</span>interphase is the resting phase between successive mitotic divisions of a cell, or between the first and second divisions of meiosis.

mitosis is a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth.

Have a nice day

7 0
3 years ago
Read 2 more answers
Last week, you looked at both animal &amp; plant cells. Both of these cells were ______. This week, you'll be looking at a diffe
Inga [223]

Answer:

"Last week, you looked at both animal & plant cells. Both of these cells were diploid somatic eukaryotic. This week, you'll be looking at a different, but very important, type of cell: sexual cells. Two gametes, one from a female & one from a male, merge during the process of fecundation/fertilization to form a zygote. All in the organism will develop from this initial diploid cell".

Explanation:  

There are two principal types of cells in the organism: Somatic cells that can not form any gametes, and germ cells that are in charge of gamete production. Both somatic cells and germinal cells will end their cycle dividing and becoming two daughter cells with the same genetic dotation after mitosis.

Somatic cells are any cell in the body excepting from sperm and egg cells. These somatic cells are diploid, they contain two chromosomes sets, each one inherited from each parental. Mutations in somatic cells affect the individual but the progeny does not inherit them. In this sense, these cells do not contribute to anything to inheritance terms through genetics.

Germ cells are the reproductive diploid cells, and the sexual organs (testes and ovaries) are the ones that produce them. These cells might suffer mitosis to form more sexual cells, and then a few of them suffer meiosis giving place to haploid gametes called sperm and egg cells through the gametogenesis process. Each germ cell produces 4 haploid gametes after meiosis.  

Gametes´destiny is to merge in the process of fecundation, during which a new diploid cell called zygote emerges through fertilization. The zygote is a complete cell from the structural point of view that suffer successive mitosis to form the new organism.

 

6 0
3 years ago
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