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Andru [333]
3 years ago
8

The outer layer of cells that will form the structures that will provide protection and nourishment for the newly formed organis

m is the ____.
Biology
1 answer:
mihalych1998 [28]3 years ago
6 0
<span>Trophoblasts Trophoblasts are cells that make up the external layer of a blastocyst, this is a major source of nutrient for a newly formed organism</span>
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Is the penguin a bird?? please help <br> &lt;3
zvonat [6]

Answer:

Yes, it is.

Explanation:

Penguins are a species of seabird that lives in the southern hemisphere, in areas close to Antarctica, characterized by its cold and wide expanses of sea without land. In this context, penguins are capable of living in these temperatures and feeding on fish and other marine elements. In addition, they are unable to fly, but not so to move through the sea using their wings for it.

4 0
2 years ago
Are all microbes that makes us sick made of living cells?
mylen [45]
The answer to this question is no
3 0
3 years ago
PLEASEE HELPPP!!!!
dusya [7]

Answer:

<em>The correct option is B) Freshwater snails and small fish</em>

Explanation:

As we can see from the food web, the fresh water snails and the small fishes both feed on algae and water plants as their source of food hence, both these organisms feed on the same food.

Other options, like option C, is not correct because water boatman and water plants do not feed on the same sources. Water boatman feeds on reeds whereas water plants do not. Water plants will make their own food.

8 0
3 years ago
A forest has two groups of plants that appear to be very similar both phenotypically and genotypically. The major difference is
Andru [333]
<span>In order to know whether the plants are members of one population with great diversity or actually members of the same species we can attempt to find out whether they reproduce or not. That's one of the main aspects of two organisms of the same species - fertility.

We could start by setting up some kind of artificial environment where both plants would pollenise at the same time, or we could also collect the pollens from both plants and store it to use them in a different time of the year than that of their production. 

After having the pollens available from both plants we could fertilise a group of both plants with each other's pollens (the actual object of study), and also fertilise a group of both plants with their own pollens (so we can have a control for the quality of the pollens and the plants - in this group it is expected to have offspring, if there isn't we cannot take into account any other results).

After the fertilisation, we should now count the offspring. If there is offspring resulting from the crossed plants, they are probably of the same species. We could also compare these plants with the offspring of the normal crossing to check whether there were major differences (such as health issues, or offspring number) that would lead to conclude that still there wasn't compatibility. 

By creating a hybrid between this two groups, even if they are from the same species, we may have to take also into account that they may have different required conditions than their parent plants.

</span>The study should be repeated a few times or the number of plants involved should be large enough to be statistically relevant.
5 0
3 years ago
Which statement correctly describes the nucleus of the atom?
AlexFokin [52]

Answer:

The nucleus contains the protons and neutrons which takes up most of the mass of the atom.

6 0
3 years ago
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