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Brut [27]
3 years ago
14

The only antibodies that normally cross the placenta are

Biology
1 answer:
IrinaK [193]3 years ago
6 0
The answer is lgG. Hope this helps and please name this the brainiest thanks.
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Nitrogen is "fixed" by plants<br> O True<br> O False
LekaFEV [45]

Answer:

i think it is false. because symbiotic soil microbes do that

8 0
3 years ago
Which of the following occurs most often in a population when genetic variation and overproduction are present?
aalyn [17]

Overproduction is a natural phenomenon in which the number of produced offspring is higher than the number of individuals the ecosystem can sustain. Thus, competition for limited resources occurs.

Because of the genetic variation, the organisms within a population have different chances to reproduce. Most often, some organisms have a lower reproductive success than others do.

The number of individuals with a high reproductive success is rather low as few males are very successful at passing on their genetic material.

The number of organisms with no reproductive success is also very low, as these "ill adapted" individuals will disappear from the population extremely quickly.

Genetic variation is the amount of differences between individuals. Thus, no organism taken by itself has any genetic variation.

6 0
3 years ago
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Does heat radiate from the ground into the lower atmosphere
nexus9112 [7]
Yes it does if you need an explanation lmk
5 0
3 years ago
The organisms of which domain are organized according to their shape? A. Bacteria B. Archaea C. Eukaryota
-Dominant- [34]
The three domain system is develop by Carl Woese and is used to classify biological organisms. Under these would be bacteria,archaea and eukaryota. There are also kingdoms namely archaebacteria,fungi, plantae, etc.The answer on this question would be letter b. archaea
6 0
3 years ago
Is controlling homeostasis a conscious or unconscious process?
kirill115 [55]

Answer:

It is an unconcious process

Explanation:

Homeostasis is when the body is made sure to have a constant environment inside so that the body can work at it's optimum conditions .... constant temperature, constant pH etc ... you do sweat when you feel hot but you can't control it... your mind just tells it to... vadodilation and vasoconstriction for a constant temperature occurs for a constant temperature as well(when vessels dilate and constrict), your mind allows the vessels to do so without you thinking about it.

5 0
3 years ago
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